Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8960681 | Cylinder head gasket | Toru Takasu, Ryosuke Fujiki, Kazuya Yoshijima, Yoshihiko Masuda | 2015-02-24 |
| 8123230 | Cylinder head gasket | Kazuya Yoshijima, Shigeo Kiyoi | 2012-02-28 |