Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9121489 | Metal gasket | Shinichi Hirayama, Koichi Nakajima, Masashi Suzuki | 2015-09-01 |
| 6957814 | Metal gasket | Yasunori Murakami, Jun Iwamoto, Takeshi Hagiwara, Atsushi Matsufuji | 2005-10-25 |