Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8138133 | Gear oil composition | Yasuyoshi Suzuki, Narihiko Yoshimura, Kenji Ueno, Kouji Saitoh, Kiyonari Ishikawa | 2012-03-20 |
| 4821602 | Support structure of differential gear unit | Yasuyoshi Yasui | 1989-04-18 |