Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7210285 | Internal combustion engine exhaust gas purifying system | Hitoshi Sato, Naofumi Ochi, Masashi Gabe, Takehito Imai | 2007-05-01 |
| 4307223 | Solid resin prepared by polymerizing by-product tar formed during preparation of resorcinol | Akira Shintani, Katsuo Akagane, Yasuhisa Saito | 1981-12-22 |