| 2021 | IJCNN | A Synthesis Method of Spiking Neural Oscillators with Considering Asymptotic Stability. | Yasuaki Kuroe, Seiji Miyoshi, Hiroomi Hikawa, Hidetaka Ito, Kimiko Motonaka, Yutaka Maeda |
| 2019 | IJCNN | Nested Hardware Architecture for Self-Organizing Map. | Hiroomi Hikawa |
| 2018 | ISCAS | Hardware Self-Organizing Map Based on Frequency-Modulated Signal and Digital Frequency-Locked Loop. | Hiroomi Hikawa, Hidetaka Ito, Yutaka Maeda |
| 2016 | ICONIP | Gesture Spotting by Using Vector Distance of Self-organizing Map. | Yuta Ichikawa, Shuji Tashiro, Hidetaka Ito, Hiroomi Hikawa |
| 2016 | ISCAS | Live demonstration: Off-chip learning for hardware hand-sign recognition system. | Masayuki Tamaki, Hiroomi Hikawa |
| 2016 | ISCAS | Off-chip learning for hardware hand-sign recognition system. | Masayuki Tamaki, Hiroomi Hikawa |
| 2015 | IJCNN | Vector classification by a winner-take-all neural network with digital frequency-locked loop. | Hiroomi Hikawa |
| 2015 | ISCAS | Winner-take-all neural network with digital frequency-locked loop. | Hiroomi Hikawa |
| 2014 | ISCAS | Low-power wiring method in CMOS logics circuits by segmentation coding and pseudo majority voting. | Katsuhiko Ueda, Zuiko Rikuhashi, Kentaro Hayashi, Hiroomi Hikawa |
| 2013 | IJCNN | DPLL based hardware SOM with a new winner-take-all circuit. | Hiroomi Hikawa |
| 2012 | IJCNN | Real time gesture recognition system using posture classifier and Jordan recurrent neural network. | Yusuke Araga, Makoto Shirabayashi, Keishi Kaida, Hiroomi Hikawa |
| 2011 | ICANN | Learning Scheme for Complex Neural Networks Using Simultaneous Perturbation. | Yutaka Maeda, Takahiro Yamada, Seiji Miyoshi, Hiroomi Hikawa |
| 2011 | IJCNN | Study on gesture recognition system using posture classifier and Jordan recurrent neural network. | Hiroomi Hikawa, Yusuke Araga |
| 2011 | SMC | Hand sign recognition system based on SOM-Hebb hybrid network. | Hiroomi Hikawa, Keishi Kaida |
| 2010 | IJCNN | Image compression with hardware self-organizing map. | Hiroomi Hikawa, Kenji Doumoto, Simone Miyoshi, Yutaka Maeda |
| 2010 | IJCNN | Comparison of range check classifier and hybrid network classifier for hand sign recognition system. | Hiroomi Hikawa, Seito Yamazaki, Tatsuya Ando, Simone Miyoshi, Yutaka Maeda |
| 2010 | ISCAS | Phase amplitude converter with conditional shift operation. | Hiroomi Hikawa, Taketo Namba |
| 2009 | CEC | On simultaneous perturbation particle swarm optimization. | Yutaka Maeda, Naoto Matsushita, Seiji Miyoshi, Hiroomi Hikawa |
| 2009 | IJCNN | On automatic generation of VHDL code for self-organizing map. | Akira Onoo, Hiroomi Hikawa, Seiji Miyoshi, Yutaka Maeda |
| 2009 | IJCNN | Hand sign recognition system based on hybrid network classifier. | Yuuki Taki, Hiroomi Hikawa, Seiji Miyoshi, Yutaka Maeda |
| 2009 | ISCAS | DDFS with New Sinusoid Approximation based on Harmonics Removal. | Hiroomi Hikawa |
| 2008 | ICONIP | Hardware Design of Japanese Hand Sign Recognition System. | Hiroomi Hikawa, Hirotada Fujimura |
| 2007 | ICONIP | Japanese Hand Sign Recognition System. | Hirotada Fujimura, Yuuichi Sakai, Hiroomi Hikawa |
| 2007 | ICONIP | A New Hardware Friendly Vector Distance Evaluation Function for Vector Classifiers. | Hiroomi Hikawa, Kaori Kugimiya |
| 2007 | IJCNN | Pseudo RBF Network for Position Independent Hand Posture Recognition System. | Hiroomi Hikawa, Shigeki Matsubara |
| 2007 | IJCNN | Performance Comparison of SOM Based Hybrid Hardware Classifiers. | Hiroomi Hikawa, Taku Miyanishi, Kousuke Tamaya |
| 2006 | IJCNN | Vector Quantization System Based on Scalar SOM/AND-OR Hybrid Network. | Hiroomi Hikawa |
| 2005 | IJCNN | A new pulse mode self organizing map hardware with digital phase locked loops. | Hiroomi Hikawa |
| 2005 | ISCAS | Hardware friendly vector quantization algorithm. | Shigeki Matsubara, Hiroomi Hikawa |
| 2004 | IJCNN | Digital pulse mode neuron with robust nonlinear activation function. | Hiroomi Hikawa |
| 2004 | ISCAS | Direct digital frequency synthesizer with multi-stage linear interpolation. | Hiroomi Hikawa |
| 2003 | ISCAS | Pulse mode neuron with leakage integrator and additive random noise. | Hiroomi Hikawa |
| 2001 | ISCAS | Digital pulse mode neural network with simple synapse multiplier. | Hiroomi Hikawa |
| 2000 | IJCNN | Pulse Mode Multilayer Neural Network with Floating Point Operation and On-Chip Learning. | Hiroomi Hikawa |
| 2000 | ISCAS | Pulse mode multilayer neural network based on floating point number representation. | Hiroomi Hikawa |
| 1999 | ISCAS | An efficient pulse mode multilayer neural network. | Hiroomi Hikawa |