Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5381584 | Vacuum cleaner | Fumio Jyoraku, Hisao Suka, Yoshitaro Ishii, Hisanori Toyoshima, Haruo Koharagi +6 more | 1995-01-17 |
| 5243732 | Vacuum cleaner with fuzzy logic control | Haruo Koharagi, Kazuo Tahara, Toshiyuki Ajima, Tsunehiro Endo, Hisao Suka +8 more | 1993-09-14 |
| 5027469 | Vacuum cleaner | Hisanori Toyoshima, Fumio Jyoraku, Yoshitaro Ishii, Jiro Arai | 1991-07-02 |