Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10807821 | Film supplying device in horizontal package making and filling machine | — | 2020-10-20 |
| 10598146 | Hydraulic pump-motor | Mitsuru Arai, Seiichi Hasegawa | 2020-03-24 |
| 10018174 | Hydraulic pump/motor | Hideaki Usami, Seiichi Hasegawa | 2018-07-10 |
| 8794124 | Hydraulic pump or motor | Tadashi Nakagawa, Tomohiro Sakai | 2014-08-05 |
| 8734127 | Hydraulic pump-motor and method of preventing pulsation of hydraulic pump-motor | — | 2014-05-27 |
| 4772114 | Dynamic optometer | Yukio Fukui, Tsunehiro Takeda | 1988-09-20 |
| 4691788 | Lateral hole boring method and apparatus | Shoji Yoshida, Yasuhiko Haru, Etsuji Kosaka, Toshimichi Ikeda, Mikio Aoyama | 1987-09-08 |
| 4600460 | Process for fabricating display panel | Hisao Taki | 1986-07-15 |