Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4734562 | Electric toaster oven | Yoichi Sekigawa, Nobuyuki Kojima, Shigeki Yamaguchi | 1988-03-29 |
| D281998 | Oilstove | Youichi Sekigawa | 1985-12-31 |
| D277697 | Oilstove | Nobuyuki Kojima, Youichi Sekigawa | 1985-02-19 |
| 4440147 | Room-heating stove with a retractable fire-prevention spacer | Bunji Aizawa, Akio Ibe, Yoichi Sekikawa | 1984-04-03 |
| 4437832 | Lamp wick equipment for a combustion apparatus | Youichi Sekiwaga | 1984-03-20 |