Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5766431 | Electrolyzer | Masao Sanuki | 1998-06-16 |
| 5440863 | Bagger | Chiyoshi Toya, Yoshinori Tanaka | 1995-08-15 |
| 5134505 | Push-button switch with liquid-crystal display | Takeo Takei | 1992-07-28 |