| 2026 | CHI | Walking Through or Detour? Investigating Walking Paths with World‑Anchored Mixed Reality Objects. | Myungguen Choi, Reiji Ohzawa, Atsushi Orii, Ikkaku Kawaguchi, Buntarou Shizuki |
| 2026 | CHI | Bevel or Not: Identifying the Potential of Bevels for Touch Input Accuracy on Ring Device. | Yuki Kubo, Arinobu Niijima, Yukio Koike, Buntarou Shizuki |
| 2026 | CHI | Exploring Indirect Touch Gestures for Smartphone Interaction within VR Environments. | Yuto Wada, Myungguen Choi, Buntarou Shizuki |
| 2025 | CHI | FlexEar-Tips: Shape-Adjustable Ear Tips Using Pressure Control. | Takashi Amesaka, Takumi Yamamoto, Hiroki Watanabe, Buntarou Shizuki, Yuta Sugiura |
| 2025 | CHI | PhoneCanvas++: Multimodal 3D Sketching System Using a Depth Camera-Equipped Smartphone as a Canvas. | Yuki Takeyama, Kousei Nagayama, Myungguen Choi, Buntarou Shizuki |
| 2025 | ETRA | Design of Implicit Emotion Classification System Using Eye Behavior. | Mayu Akata, Toshiya Isomoto, Yoshiki Nishikawa, Buntarou Shizuki |
| 2025 | OZCHI | FlashCue: Momentary Displayed Visual Notifications in Extended Reality. | Atsushi Orii, Yusuke Ashizawa, Myungguen Choi, Buntarou Shizuki |
| 2025 | OZCHI | Preliminary Study on the Effects of On-Screen Tactile Feedback on Virtual Joystick Interaction. | Kaoru Shirane, Riku Tsunoda, Hiroki Matsuda, Yuto Wada, Takumi Masuda, Tomohiro Honda, Kaori Ikematsu, Buntarou Shizuki |
| 2024 | ETRA | Estimating 'Happy' Based on Eye-Behavior Collected from HMD. | Mayu Akata, Yoshiki Nishikawa, Toshiya Isomoto, Buntarou Shizuki |
| 2024 | ETRA | Investigation of Unconscious Gaze and Head Direction in Videoconference - Turning off Microphone/Camera by Unconscious Gaze and Head Direction -. | Yui Atarashi, Kaisei Yokoyama, Buntarou Shizuki |
| 2024 | HCI | Evaluation of Interactive Slider Design Utilizing Haptic Feedback. | Yui Atarashi, Buntarou Shizuki |
| 2024 | HCI | Effects of Electrical Muscle Stimulation on Memorability of Hand Gestures: A Preliminary Study. | Yoshiki Nishikawa, Yui Atarashi, Shogo Sekiguchi, Buntarou Shizuki |
| 2024 | HCI | Authentication Method Using Opening Gestures. | Shogo Sekiguchi, Shingo Kato, Yoshiki Nishikawa, Buntarou Shizuki |
| 2024 | HCI | Preliminary Study on Flick-Based Text Input on HMD's Front. | Taisei Yamaguchi, Yoshiki Nishikawa, Buntarou Shizuki |
| 2024 | MUM | Active Acoustic Sensing Based Authentication System Using a Door Handle. | Tomoki Konishi, Myungguen Choi, Buntarou Shizuki |
| 2024 | MUM | Thumb-to-Finger Gesture Recognition Using COTS Smartwatch Accelerometers. | Riku Tsunoda, Myungguen Choi, Buntarou Shizuki |
| 2024 | OZCHI | Investigation of Test-Retest Reliability in 2D-Target Pointing Task for Five Consecutive Days. | Yui Atarashi, Yuki Takeyama, Mayu Akata, Yuma Suzuki, Shingo Kato, Kaisei Yokoyama, Takuma Hidaka, Shota Yamanaka, Buntarou Shizuki |
| 2024 | UIST | EarHover: Mid-Air Gesture Recognition for Hearables Using Sound Leakage Signals. | Shunta Suzuki, Takashi Amesaka, Hiroki Watanabe, Buntarou Shizuki, Yuta Sugiura |
| 2024 | SiggraphA | Signal2Hand: Sensor Modality Translation from Body-Worn Sensor Signals to Hand-Depth Images. | Yuki Kubo, Buntarou Shizuki |
| 2023 | ETRA | Reanalyzing Effective Eye-related Information for Developing User's Intent Detection Systems. | Toshiya Isomoto, Shota Yamanaka, Buntarou Shizuki |
| 2023 | ISWC | User Authentication Method for Hearables Using Sound Leakage Signals. | Takashi Amesaka, Hiroki Watanabe, Masanori Sugimoto, Yuta Sugiura, Buntarou Shizuki |
| 2023 | OZCHI | Hover-Based Japanese Input Method without Restricting Arm Position for XR. | Shingo Kato, Buntarou Shizuki |
| 2022 | ETRA | Interaction Design of Dwell Selection Toward Gaze-based AR/VR Interaction. | Toshiya Isomoto, Shota Yamanaka, Buntarou Shizuki |
| 2021 | CHI | Pilot Study on Notification Using Phantom Sensation on Hand. | Takuma Hidaka, Yusuke Sei, Buntarou Shizuki |
| 2021 | CHI | Preliminary Investigation of Text Entry Method with Haptic Feedback from Real Object Surfaces Estimated Using Hand Tracking on HMD. | Rio Hirai, Ryo Ikeda, Buntarou Shizuki |
| 2021 | CHI | Hover-Based Reachability Technique for Executing Single-Touch Gesture on Smartphone. | Ryo Ikeda, Kyohei Hakka, Buntarou Shizuki |
| 2021 | CHI | Investigating Reaction Accuracy of Extended Touchscreen with Conductive Ink for Mobile Virtual Piano. | Hinako Nozaki, Kaori Minawa, Rei Takakura, Buntarou Shizuki |
| 2021 | CHI | Expanding One-Handed Input Vocabulary for Smartphone Using In-Air Gesture of Index Finger Captured by Rear Camera. | Yusuke Sei, Buntarou Shizuki |
| 2021 | CHI | A User-based Mid-air Hand Gesture Set for Spreadsheets. | Yuta Takayama, Yuu Ichikawa, Buntarou Shizuki, Ikkaku Kawaguchi, Shin Takahashi |
| 2021 | CHI | Investigating the Effects of Position and Angle of Virtual Keyboard on Text Entry Performance and Workload. | Koki Tominaga, Shun Fujita, Rei Takakura, Buntarou Shizuki |
| 2021 | Interact | JoyFlick: Japanese Text Entry Using Dual Joysticks for Flick Input Users. | Kaisei Yokoyama, Rei Takakura, Buntarou Shizuki |
| 2021 | VRST | A Hat-shaped Pressure-Sensitive Multi-Touch Interface for Virtual Reality. | Kazuki Sakata, Buntarou Shizuki, Ikkaku Kawaguchi, Shin Takahashi |
| 2020 | AVI | Hand Gesture Interaction with a Low-Resolution Infrared Image Sensor on an Inner Wrist. | Yuki Yamato, Yutaro Suzuki, Kodai Sekimori, Buntarou Shizuki, Shin Takahashi |
| 2020 | CHI | Preliminary Investigation of Tapping Force on Pressure-Sensitive Touchscreen for Expanding Input Vocabulary on Smartphone. | Ryo Ikeda, Yuta Urushiyama, Buntarou Shizuki |
| 2020 | CHI | Expanding Input Vocabulary Using Index Finger on and Above Back of Smartphone. | Yusuke Sei, Minto Funakoshi, Buntarou Shizuki |
| 2020 | HCI | SilverCodes: Thin, Flexible, and Single-Line Connected Identifiers Inputted by Swiping with a Finger. | Minto Funakoshi, Shun Fujita, Kaori Minawa, Buntarou Shizuki |
| 2020 | HCI | Identification Method of Digits for Expanding Touchpad Input. | Takuto Nakamura, Buntarou Shizuki |
| 2020 | HCI | A Mouth Gesture Interface Featuring a Mutual-Capacitance Sensor Embedded in a Surgical Mask. | Yutaro Suzuki, Kodai Sekimori, Yuki Yamato, Yusuke Yamasaki, Buntarou Shizuki, Shin Takahashi |
| 2020 | HCI | Touch Position Detection on the Front of Face Using Passive High-Functional RFID Tag with Magnetic Sensor. | Yuta Takayama, Yuu Ichikawa, Takumi Kitagawa, Song Shengmei, Buntarou Shizuki, Shin Takahashi |
| 2020 | HCI | Voice-Based Bodyweight Training Support System Using Smartphone. | Ruiyun Wang, Shin Takahashi, Buntarou Shizuki, Ikkaku Kawaguchi |
| 2020 | TEI | Japanese Patterns as NFC Antennas for Interactive Urushi-ware. | Keita Saito, Takuto Nakamura, Kazushi Kamezawa, Ryo Ikeda, Yuki Hashimoto, Buntarou Shizuki |
| 2019 | CHI | One-handed Rapid Text Selection and Command Execution Method for Smartphones. | Toshiyuki Ando, Toshiya Isomoto, Buntarou Shizuki, Shin Takahashi |
| 2019 | CHI | A Sensing Technique for Data Glove Using Conductive Fiber. | Ryosuke Takada, Junichiro Kadomoto, Buntarou Shizuki |
| 2019 | OZCHI | Ray-Casting Based Interaction Using an Extended Pull-Out Gesture for Interactive Tabletops. | Shun Fujita, Naoki Yanagihara, Buntarou Shizuki, Shin Takahashi |
| 2019 | OZCHI | Bounded Swipe: Swipe Gesture Inside a Target. | Kyohei Hakka, Toshiya Isomoto, Buntarou Shizuki, Shin Takahashi |
| 2019 | OZCHI | Expanding One-Handed Touch Input Vocabulary Using Index Finger on and Above Back-of-Device. | Yusuke Sei, Minto Funakoshi, Buntarou Shizuki |
| 2019 | OZCHI | Exploration of Passive Haptics Based Learning Support Method for Touch Typing. | Rei Takakura, Kyohei Hakka, Buntarou Shizuki |
| 2019 | PERCOM | Touch Sensing on the Forearm Using the Electrical Impedance Method. | Yutaro Suzuki, Kodai Sekimori, Buntarou Shizuki, Shin Takahashi |
| 2019 | VRST | A Comparative Study of Planar Surface and Spherical Surface for 3D Pointing Using Direct Touch. | Naoki Yanagihara, Buntarou Shizuki, Shin Takahashi |
| 2019 | VRST | Text Entry Method for Immersive Virtual Environments Using Curved Keyboard. | Naoki Yanagihara, Buntarou Shizuki, Shin Takahashi |
| 2018 | ACIIDS | A Development of Participatory Sensing System for Foreign Visitors in PBL. | Shuta Nakamae, Wataru Sakamoto, Tetsuya Negishi, Shuhei Goto, Buntarou Shizuki, Chiemi Watanabe, Toshiyuki Amagasa |
| 2018 | CHI | CanalSense+: Face-Related Movement Recognition and Identification System based on Air Pressure in Ear Canals. | Toshiyuki Ando, Yuki Kubo, Buntarou Shizuki, Shin Takahashi |
| 2018 | CHI | ExtensionClip: Touch Point Transfer Device Linking Both Sides of a Smartphone for Mobile VR Environments. | Ryosuke Takada, Toshiya Isomoto, Wataru Yamada, Hiroyuki Manabe, Buntarou Shizuki |
| 2018 | ETRA | Dwell time reduction technique using Fitts' law for gaze-based target acquisition. | Toshiya Isomoto, Toshiyuki Ando, Buntarou Shizuki, Shin Takahashi |
| 2018 | HCI | Investigating Effects of Users' Background in Analyzing Long-Term Images from a Stationary Camera. | Koshi Ikegawa, Akira Ishii, Kazunori Okamura, Buntarou Shizuki, Shin Takahashi |
| 2018 | HCI | Flickey: Flick-Based QWERTY Software Keyboard for Ultra-small Touch Screen Devices. | Akira Ishii, Hiroyuki Hakoda, Buntarou Shizuki |
| 2018 | HCI | A Mobile Command Input Through Vowel Lip Shape Recognition. | Yuto Koguchi, Kazuya Oharada, Yuki Takagi, Yoshiki Sawada, Buntarou Shizuki, Shin Takahashi |
| 2018 | HCI | A Gesture-Based Interaction Technique for a Passive RFID Card with an Acceleration Sensor. | Kazuya Oharada, Buntarou Shizuki, Shin Takahashi |
| 2018 | HCI | Ex-Space: Expanded Space Key by Sliding Thumb on Home Position. | Kodai Sekimori, Yusuke Yamasaki, Yuki Takagi, Kazuma Murata, Buntarou Shizuki, Shin Takahashi |
| 2018 | OZCHI | Press & tilt: one-handed text selection and command execution on smartphone. | Toshiyuki Ando, Toshiya Isomoto, Buntarou Shizuki, Shin Takahashi |
| 2018 | OZCHI | Tesla blocks: magnetism-based tangible 3D modeling system using block-shaped objects. | Koshi Ikegawa, Buntarou Shizuki |
| 2018 | OZCHI | Distinction system of left and right hands placed on a keyboard of laptop computers. | Takuto Nakamura, Buntarou Shizuki |
| 2018 | TEI | Investigation of Touch Interfaces Using Multilayered | Koshi Ikegawa, Shuhei Aoyama, Shogo Tsuchikiri, Takuto Nakamura, Yuki Hashimoto, Buntarou Shizuki |
| 2017 | CHI | FistPointer: Target Selection Technique using Mid-air Interaction for Mobile VR Environment. | Akira Ishii, Takuya Adachi, Keigo Shima, Shuta Nakamae, Buntarou Shizuki, Shin Takahashi |
| 2017 | CHI | SynCro: Context-Aware User Interface System for Smartphone-Smartwatch Cross-Device Interaction. | Yuki Kubo, Ryosuke Takada, Buntarou Shizuki, Shin Takahashi |
| 2017 | CHI | A Technique for Touch Force Sensing using a Waterproof Device's Built-in Barometer. | Ryosuke Takada, Wei Lin, Toshiyuki Ando, Buntarou Shizuki, Shin Takahashi |
| 2017 | HCI | Meyboard: A QWERTY-Based Soft Keyboard for Touch-Typing on Tablets. | Yuki Kuno, Buntarou Shizuki |
| 2017 | HCI | BLE-Based Children's Social Behavior Analysis System for Crime Prevention. | Shuta Nakamae, Shumpei Kataoka, Can Tang, Yue Pu, Simona Vasilache, Satoshi Saga, Buntarou Shizuki, Shin Takahashi |
| 2017 | HCI | JoyKey: One-Handed Hardware Keyboard with 4\, \times \, 3 Grid Slide Keys. | Ryosuke Takada, Buntarou Shizuki, Shin Takahashi |
| 2017 | UIST | CanalSense: Face-Related Movement Recognition System based on Sensing Air Pressure in Ear Canals. | Toshiyuki Ando, Yuki Kubo, Buntarou Shizuki, Shin Takahashi |
| 2017 | UIST | AccelTag: A Passive Smart ID Tag with Acceleration Sensor for Interactive Applications. | Kazuya Oharada, Buntarou Shizuki, Shin Takahashi |
| 2016 | CHI | Input Techniques to the Surface around a Smartphone using a Magnet Attached on a Stylus. | Tetsuya Abe, Buntarou Shizuki, Jiro Tanaka |
| 2016 | CHI | ThumbSlide: An Interaction Technique for Smartwatches using a Thumb Slide Movement. | Shuhei Aoyama, Buntarou Shizuki, Jiro Tanaka |
| 2016 | CHI | Evaluation of Callout Design for Ultra-small Touch Screen Devices. | Akira Ishii, Buntarou Shizuki, Jiro Tanaka |
| 2016 | CHI | B2B-Swipe: Swipe Gesture for Rectangular Smartwatches from a Bezel to a Bezel. | Yuki Kubo, Buntarou Shizuki, Jiro Tanaka |
| 2016 | CHI | Investigating Accuracy of Tilting Operation on Wrist-worn Devices with Touchscreens. | Keigo Shima, Kazusa Onishi, Ryosuke Takada, Takuya Adachi, Buntarou Shizuki, Jiro Tanaka |
| 2016 | CHI | MonoTouch: Single Capacitive Touch Sensor that Differentiates Touch Gestures. | Ryosuke Takada, Buntarou Shizuki, Jiro Tanaka |
| 2016 | HCI | QAZ Keyboard: QWERTY Based Portrait Soft Keyboard. | Hiroyuki Hakoda, Buntarou Shizuki, Jiro Tanaka |
| 2016 | HCI | Evaluation of a System to Analyze Long-Term Images from a Stationary Camera. | Akira Ishii, Tetsuya Abe, Hiroyuki Hakoda, Buntarou Shizuki, Jiro Tanaka |
| 2016 | HCI | Effects of Holding Ring Attached to Mobile Devices on Pointing Accuracy. | Yuya Kawabata, Daisuke Komoriya, Yuki Kubo, Buntarou Shizuki, Jiro Tanaka |
| 2016 | HCI | Sensing Grasp Force Using Active Acoustic Sensing. | Buntarou Shizuki |
| 2016 | HCI | Hover Detection Using Active Acoustic Sensing. | Masaya Tsuruta, Shuhei Aoyama, Arika Yoshida, Buntarou Shizuki, Jiro Tanaka |
| 2016 | OZCHI | Exploring callout design in selection task for ultra-small touch screen devices. | Akira Ishii, Buntarou Shizuki |
| 2016 | UIST | Watch Commander: A Gesture-based Invocation System for Rectangular Smartwatches using B2B-Swipe. | Yuki Kubo, Buntarou Shizuki, Shin Takahashi |
| 2015 | CHI | HoverLink: Joint Interactions using Hover Sensing Capability. | Takuro Kuribara, Buntarou Shizuki, Jiro Tanaka |
| 2015 | HCI | AirFlip: A Double Crossing In-Air Gesture Using Boundary Surfaces of Hover Zone for Mobile Devices. | Hiroyuki Hakoda, Takuro Kuribara, Keigo Shima, Buntarou Shizuki, Jiro Tanaka |
| 2015 | HCI | Task Specific Paper Controller that Can Be Created by Users for a Specific Computer Operation. | Daisuke Komoriya, Buntarou Shizuki, Jiro Tanaka |
| 2015 | HCI | Mouse Augmentation Using a Malleable Mouse Pad. | Takuro Kuribara, Buntarou Shizuki, Jiro Tanaka |
| 2015 | HCI | Spatial Arrangement of Data and Commands at Bezels of Mobile Touchscreen Devices. | Toshifumi Kurosawa, Buntarou Shizuki, Jiro Tanaka |
| 2015 | HCI | Investigation of Transferring Touch Events for Controlling a Mobile Device with a Large Touchscreen. | Kazusa Onishi, Buntarou Shizuki, Jiro Tanaka |
| 2015 | OZCHI | Back-of-Device Interaction based on the Range of Motion of the Index Finger. | Hiroyuki Hakoda, Yoshitomo Fukatsu, Buntarou Shizuki, Jiro Tanaka |
| 2015 | UIST | AirFlip-Undo: Quick Undo using a Double Crossing In-Air Gesture in Hover Zone. | Keigo Shima, Ryosuke Takada, Kazusa Onishi, Takuya Adachi, Buntarou Shizuki, Jiro Tanaka |
| 2015 | UIST | Capacitive Blocks: A Block System that Connects the Physical with the Virtual using Changes of Capacitance. | Arika Yoshida, Buntarou Shizuki, Jiro Tanaka |
| 2015 | TEI | Sensing Touch Force using Active Acoustic Sensing. | Makoto Ono, Buntarou Shizuki, Jiro Tanaka |
| 2014 | CHI | Vibrainput: two-step PIN entry system based on vibration and visual information. | Takuro Kuribara, Buntarou Shizuki, Jiro Tanaka |
| 2014 | CHI | Handyscope: a remote control technique using pull-out gesture. | Takuro Kuribara, Takuto Yoshikawa, Buntarou Shizuki, Jiro Tanaka |
| 2014 | HCI | HandyScope: A Remote Control Technique Using Circular Widget on Tabletops. | Takuro Kuribara, Yusaku Mita, Kazusa Onishi, Buntarou Shizuki, Jiro Tanaka |
| 2014 | UIST | A rapid prototyping toolkit for touch sensitive objects using active acoustic sensing. | Makoto Ono, Buntarou Shizuki, Jiro Tanaka |
| 2013 | CHI | Sinkpad: a malleable mouse pad consisted of an elastic material. | Takuro Kuribara, Buntarou Shizuki, Jiro Tanaka |
| 2013 | HCI | Evaluation of Effects of Textures Attached to Mobile Devices on Pointing Accuracy. | Yoshitomo Fukatsu, Tatsuhito Oe, Yuki Kuno, Buntarou Shizuki, Jiro Tanaka |
| 2013 | HCI | Long-Term Study of a Software Keyboard That Places Keys at Positions of Fingers and Their Surroundings. | Yuki Kuno, Buntarou Shizuki, Jiro Tanaka |
| 2013 | HCI | Keyboard Clawing: Input Method by Clawing Key Tops. | Toshifumi Kurosawa, Buntarou Shizuki, Jiro Tanaka |
| 2013 | HCI | Evaluation of a Soft-Surfaced Multi-touch Interface. | Anna Noguchi, Toshifumi Kurosawa, Ayaka Suzuki, Yuichiro Sakamoto, Tatsuhito Oe, Takuto Yoshikawa, Buntarou Shizuki, Jiro Tanaka |
| 2013 | HCI | Undo/Redo by Trajectory. | Tatsuhito Oe, Buntarou Shizuki, Jiro Tanaka |
| 2013 | HCI | A Remote Pointing Technique Using Pull-out. | Takuto Yoshikawa, Yuusaku Mita, Takuro Kuribara, Buntarou Shizuki, Jiro Tanaka |
| 2013 | IV | Toward Visual Analytics of Unlinked Documents by Textual Analysis and Network Visualization. | Buntarou Shizuki, Hiroshi Hosobe |
| 2013 | UIST | Touch & activate: adding interactivity to existing objects using active acoustic sensing. | Makoto Ono, Buntarou Shizuki, Jiro Tanaka |
| 2012 | ICTAI | An Exploratory Analysis Tool for a Long-Term Video from a Stationary Camera. | Ryoji Nogami, Buntarou Shizuki, Hiroshi Hosobe, Jiro Tanaka |
| 2011 | HCI | Niboshi for Slate Devices: A Japanese Input Method Using Multi-touch for Slate Devices. | Gimpei Kimioka, Buntarou Shizuki, Jiro Tanaka |
| 2011 | HCI | Design of Shadows on the OHP Metaphor-Based Presentation Interface Which Visualizes a Presenter's Actions. | Yuichi Murata, Kazutaka Kurihara, Toshio Mochizuki, Buntarou Shizuki, Jiro Tanaka |
| 2009 | HCI | ImproV: A System for Improvisational Construction of Video Processing Flow. | Atsutomo Kobayashi, Buntarou Shizuki, Jiro Tanaka |
| 2009 | HCI | OntoDesk: Ontology-Based Persistent System-Wide Undo on the Desktop. | Dvid Nemeskey, Buntarou Shizuki, Jiro Tanaka |
| 2009 | IV | Interaction Techniques Using a Spherical Cursor for 3D Targets Acquisition and Indicating in Volumetric Displays. | Masaki Naito, Buntarou Shizuki, Jiro Tanaka, Hiroshi Hosobe |
| 2008 | ISM | Browsing 3D Media Using Cylindrical Multi-touch Interface. | Buntarou Shizuki, Masaki Naito, Jiro Tanaka |
| 2006 | AVI | Laser pointer interaction techniques using peripheral areas of screens. | Buntarou Shizuki, Takaomi Hisamatsu, Shin Takahashi, Jiro Tanaka |
| 2005 | KES | Natural Storage in Human Body. | Shigaku Iwabuchi, Buntarou Shizuki, Kazuo Misue, Jiro Tanaka |
| 2004 | IV | Developing a Graphical Definition System for a Spatial Parser Generator. | Hiroaki Kameyama, Buntarou Shizuki, Jiro Tanaka |
| 2004 | IV | Execution Visualization and Debugging in Three-Dimensional Visual Programmin. | Toshiyuki Okamura, Buntarou Shizuki, Jiro Tanaka |
| 2004 | KES | comDesk: A Cooperative Assistance Tool Based on P2P Techniques. | Motoki Miura, Buntarou Shizuki, Jiro Tanaka |
| 2002 | IV | Static Visualization of Dynamic Data Flow Visual Program Execution. | Buntarou Shizuki, Etsuya Shibayama, Masashi Toyoda |
| 2002 | PDPTA | Programming Environment Specified for Describing Interprocessor Communications Based on the Operations on Graphical User Interface. | Yasutaka Sakayori, Buntarou Shizuki, Jiro Tanaka |