Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6959687 | SOHC type engine | Yoshiaki Iizuka, Toshio Abe | 2005-11-01 |
| 6615796 | Multi-cylinder engine | Yoshiaki Iizuka | 2003-09-09 |
| 6470865 | Engine cylinder head | Yoshiaki Iizuka | 2002-10-29 |
| 5845614 | Valve operating system in internal combustion engine | Shigekazu Tanaka, Shigemasa Kajiwara, Katsuaki Shiiki, Keiji Miura | 1998-12-08 |
| D286752 | Toy robot watch | — | 1986-11-18 |