Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7901074 | Lens for safety glasses | Tamenobu Yamamoto, Koichiro Oka | 2011-03-08 |
| 7192137 | Sports goggle | Fumio Ishibashi, Eiji Shimizu, Hideya Takahashi | 2007-03-20 |
| 7170058 | Device for assisting a person in rescue operations under hazardous situations | Naoki Miyano, Fumio Ishibashi, Noboru Kawanishi, Takeshi Takata, Eiji Shimizu +1 more | 2007-01-30 |
| 6810536 | Swimming goggles | Tamenobu Yamamoto, Kazuko Mabuchi | 2004-11-02 |
| 6659608 | Polarizing optical article | Tamenobu Yamamoto, Koichiro Oka | 2003-12-09 |
| 5922246 | Eyeglass lens and molded material of synthetic resin having transmittance minimum no greater than 25% at 550-585 nm | Shoshiro Matsushita, Ikuo Shimizu, Kazuko Mabuchi, Oritoshi Murata | 1999-07-13 |