Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6327892 | Apparatus and method for measuring oxygen diffusing capacity and heating packet | Yoshihiko Koiso, Yoshiki Matsumoto, Masayuki Fujisawa, Koichi Yata, Kohshi Ochi | 2001-12-11 |
| 6127290 | Heat generator for footwear and manufacturing method thereof | Yasuhiko Koiso, Masako Yamakawa, Minako Suzuki | 2000-10-03 |
| 6127294 | Sheet shaped heat generating body and method of manufacturing same | Yasuhiko Koiso, Mamoru Takahashi | 2000-10-03 |
| 5975074 | Sheet type heating element and method of manufacturing the same | Yasuhiko Koiso, Masayuki Fujisawa, Namoru Takahashi | 1999-11-02 |