Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10634249 | Piston ring and engine | Takehiko Ooshiro, Koji Miyake, Satoshi Yoshida | 2020-04-28 |
| 10458548 | Piston ring and method for manufacturing same | Takehiko Ooshiro, Koji Miyake, Satoshi Yoshida | 2019-10-29 |
| 9803155 | Lubricating oil composition, and sliding mechanism using lubricating oil composition | Hiroaki Koshima, Moritsugu Kasai, Yoko Ogahara, Koji Miyake | 2017-10-31 |
| 9593291 | Lubricating oil composition, and sliding mechanism using lubricating oil composition | Yoko Ogahara, Moritsugu Kasai, Hiroaki Koshima, Koji Miyake | 2017-03-14 |
| 5574959 | Metal casing for semiconductor device having high thermal conductivity and thermal expansion coefficient | Junzoh Matsumura | 1996-11-12 |