Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478307 | Metal gasket | Kiyoshi Sugimoto, Masahiko Miura | 2002-11-12 |
| 6439579 | Laminated gasket | Hiroshi Uemura, Kiyoshi Sugimoto | 2002-08-27 |
| 5205566 | Metallic gasket | Kosaku Ueta, Masahiko Nakada, Yukio Kawai, Takeshi Kitamura | 1993-04-27 |
| 4736956 | Jointing construction with gasket between surfaces of two members with different thermal expansion coefficients and bonded to one thereof | Hayakawa Tsutomu | 1988-04-12 |
| 4728111 | Compressed asbestos sheet gasket which swells in presence of liquids | Tsutomu Hayakawa | 1988-03-01 |