Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8889095 | Method for stabilizing size of platinum hydroxide polymer | Toyofumi Tsuda, Kazuya Miura | 2014-11-18 |
| 8652990 | Method for producing catalyst for purification of exhaust gas | Toyofumi Tsuda | 2014-02-18 |
| 7704111 | Exhaust system of outboard motor | Jun Ito, Hidehiko Yoshioka, Takayuki Naoshima, Tetsushi Achiwa, Hiromichi Takewaki | 2010-04-27 |
| 6875408 | Exhaust gas purification catalyst for internal combustion | Kosei Yamamoto, Nobutoshi Konagai, Ruri Higuchi | 2005-04-05 |