Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5992857 | Composite gasket | Takahisa Ueda, Masahiko Takaoka, Takeshi Miyoshi | 1999-11-30 |
| 5454604 | Vortex gasket for automotive exhaust system | Hideo Yahagi, Masahiko Takaoka, Takeshi Miyoshi, Keiji Okada | 1995-10-03 |
| 5411274 | Vortex gasket for automative exhaust system | Hideo Yahagi, Masahiko Takaoka, Takeshi Miyoshi, Keiji Okada | 1995-05-02 |