Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11286707 | Opening and closing system | Michio Ohashi, Satoru Nishizawa | 2022-03-29 |
| 9970505 | Shock absorber | Tatsuya Masamura | 2018-05-15 |
| 9840123 | Shock absorber | Tatsuya Masamura | 2017-12-12 |
| 9834054 | Shock absorber | Kazutaka Inamitsu, Tatsuya Masamura | 2017-12-05 |
| 9797465 | Magnetorheological fluid shock absorber | Keiji Saito, Kazuhisa Nakamura | 2017-10-24 |
| 9776468 | Shock absorber | Tatsuya Masamura | 2017-10-03 |
| 9476477 | Shock absorber | — | 2016-10-25 |
| 9435394 | Damping device | Kazutaka Inamitsu | 2016-09-06 |
| 9428030 | Shock absorber | Tatsuya Masamura | 2016-08-30 |
| 9217486 | Magnetorheological fluid shock absorber | Keiji Saito, Kazuhisa Nakamura | 2015-12-22 |
| 9169891 | Shock absorbing device | Tatsuya Masamura | 2015-10-27 |
| 7958981 | Shock absorber | Tatsuya Masamura, Futoshi Yoshida | 2011-06-14 |
| 6368072 | Hydraulic pump | Kiyoshi Inoue, Eizou Urata | 2002-04-09 |
| 6092457 | Hydraulic pump or motor | Kiyoshi Inoue, Takashi Itoh | 2000-07-25 |