Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11306649 | Engine system | Yutaka Masuda, Yasunori Ashikaga | 2022-04-19 |
| 11199140 | Engine | Yutaka Masuda, Ryoichi Kanehira | 2021-12-14 |
| 11174826 | Engine | Yutaka Masuda, Jun Teramoto | 2021-11-16 |
| 11162440 | Variable compression device and engine system | Yutaka Masuda | 2021-11-02 |
| 11131254 | Marine engine | Yutaka Masuda, Toshihiko Shimizu, Takahiro Takimoto | 2021-09-28 |
| 11105281 | Marine engine | Yutaka Masuda, Toshihiko Shimizu | 2021-08-31 |
| 11053865 | Compression ratio control device and engine | Yutaka Masuda, Takahiro Takimoto, Jun Teramoto, Kazuki Yotsui, Keitoku Iguchi | 2021-07-06 |
| 10689743 | Piston ring | Yoshiyuki Saito, Takeshi Yamada, Nobuaki KATO, Hiroaki Mizuno | 2020-06-23 |
| 10502120 | Uniflow-scavenged two-cycle engine | Takeshi Yamada, Takayuki Hirose | 2019-12-10 |
| 10087831 | Engine | Takeshi Yamada, Machiko Kobayashi | 2018-10-02 |
| 9605590 | Crosshead engine | Takeshi Yamada, Machiko Kobayashi | 2017-03-28 |
| 9476353 | Two-cycle engine and method for lubricating two-cycle engine | Yoshiyuki Saito, Takeshi Yamada | 2016-10-25 |
| 6053080 | Device for tightening bolt and/or nut | Yasunobu Kaneyama, Daijiro Yano, Shinji Fukuhara, Shozo Matsumura, Kenji Sato | 2000-04-25 |
| 4853043 | Solar battery for time piece | — | 1989-08-01 |
| 4776896 | Amorphous silicon solar battery | — | 1988-10-11 |
| 4570030 | Solar cell device | Masao Iijima, Masahide Miyagi, Yoshihisa Muramatsu | 1986-02-11 |