Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10295725 | Light guide member and light guide member manufacturing method | Hideki Koizumi, Takeshi Ito, Tatsuji Ono, Mamoru Ishizuka | 2019-05-21 |
| 4255205 | Method of producing grain-oriented silicon steel sheets having substantially no glass film | Nobuyuki Morito, Toshitomo Sugiyama | 1981-03-10 |