Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D295489 | Coffee roaster | — | 1988-05-03 |
| D285523 | Electro-magnetic induction heater | Hiroshi Fujii, Masakazu Sugiyama, Wataru Iwahashi | 1986-09-09 |
| D270390 | Vacuum cleaner | Sachio Yamamoto, Akira Tsukada | 1983-08-30 |
| D270298 | Vacuum cleaner | Sachio Yamamoto, Akira Tsukada | 1983-08-23 |
| D255166 | Electric shaver | Tamaki Takaoka, Teruko Hayano | 1980-05-27 |