| 2019 | ASPDAC | 2D optical imaging using photosystem I photosensor platform with 32x32 CMOS biosensor array. | Kiichi Niitsu, Taichi Sakabe, Mariko Miyachi, Yoshinori Yamanoi, Hiroshi Nishihara, Tatsuya Tomo, Kazuo Nakazato |
| 2019 | ASPDAC | A low-voltage CMOS electrophoresis IC using electroless gold plating for small-form-factor biomolecule manipulation. | Kiichi Niitsu, Yuuki Yamaji, Atsuki Kobayashi, Kazuo Nakazato |
| 2017 | ASPDAC | A current-integration-based CMOS amperometric sensor with 1.2 μm 2.05 μm electroless-plated microelectrode array for high-sensitivity bacteria counting. | Kohei Gamo, Kazuo Nakazato, Kiichi Niitsu |
| 2017 | ASPDAC | A scalable time-domain biosensor array using logarithmic cyclic time-attenuation-based TDC for high-resolution and large-scale bio-imaging. | Kei Ikeda, Atsuki Kobayashi, Kazuo Nakazato, Kiichi Niitsu |
| 2017 | ASPDAC | Design of an energy-autonomous bio-sensing system using a biofuel cell and 0.19V 53μW integrated supply-sensing sensor with a supply-insensitive temperature sensor and inductive-coupling transmitter. | Atsuki Kobayashi, Kei Ikeda, Yudai Ogawa, Matsuhiko Nishizawa, Kazuo Nakazato, Kiichi Niitsu |
| 2016 | ASPDAC | Design of an energy-autonomous, disposable, supply-sensing biosensor using bio fuel cell and 0.23-V 0.25-m zero-Vth all-digital CMOS supply-controlled ring oscillator with inductive transmitter. | Kiichi Niitsu, Atsuki Kobayashi, Yudai Ogawa, Matsuhiko Nishizawa, Kazuo Nakazato |
| 2014 | ISCAS | Charge-conserved analog-to-time converter for a large-scale CMOS biosensor array. | Masayuki Takihi, Kiichi Niitsu, Kazuo Nakazato |
| 2012 | ISCAS | BioCMOS LSIs for portable gene-based diagnostic inspection system. | Kazuo Nakazato |