Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5015134 | Tapping screw | — | 1991-05-14 |
| 4529055 | Motor vehicles | Masaki Watanabe, Goroei Wakatsuki, Hiroshi Shimoyama, Masakazu Matsuzawa | 1985-07-16 |
| 4230084 | Engine starting device | Yoshinori Okamoto, Goroei Wakatsuki | 1980-10-28 |