Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8736096 | Water flow electricity generating device | Hiromitsu Kiyose, Kiyoto Owaki, Etsuya Yanase, Youhei Murase | 2014-05-27 |
| 4198884 | Method of manufacturing a punching die | Takeo Nakagawa, Kiyoshi Suzuki | 1980-04-22 |