Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6426316 | Exhaust emission control catalyst for diesel engines | Toshiaki Tanaka, Nobumoto Ohashi, Shinichi Takeshima, Kazuhiro Ito | 2002-07-30 |
| 4738642 | Slidable mounting board for small water craft | Toshiki Koyama, Yoshiyuki Kohyama, Masayuki Inoue | 1988-04-19 |