Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6164661 | Cylinder head gasket | Akio Sato, Kenji Uchida, Kazuya Nakata | 2000-12-26 |
| 5755447 | Metal gasket with shim | Yoshiyuki Hagiwara | 1998-05-26 |
| 5472217 | Metal gasket | Yoshiyuki Hagiwara, Osamu Jinno, Takeshi Kitamura, Akio Kuramoto, Yukio Kawai +1 more | 1995-12-05 |
| 5393076 | Metal gasket with base plate having coatings of diverse thicknesses | Yoshiyuki Hagiwara, Osamu Jinno, Takeshi Kitamura, Akio Kuramoto, Yukio Kawai +1 more | 1995-02-28 |
| 5385354 | Metal gasket | Yoshiyuki Hagiwara, Osamu Jinno, Takeshi Kitamura, Akio Kuramoto, Yukio Kawai +1 more | 1995-01-31 |
| 5332237 | Metal gasket with welded shim | Yoshiyuki Hagiwara, Osamu Jinno, Takeshi Kitamura, Akio Kuramoto, Yukio Kawai +1 more | 1994-07-26 |