Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10295725 | Light guide member and light guide member manufacturing method | Hideki Koizumi, Takeshi Ito, Tatsuji Ono, Yoshio Obata | 2019-05-21 |
| 4824539 | Perpendicular magnetic recording medium | Tomohisa Komoda, Shuhei Tsuchimoto, Mitsuhiko Yoshikawa | 1989-04-25 |
| 4725482 | Perpendicular magnetic recording medium | Tomohisa Komoda, Shuhei Tsuchimoto, Mitsuhiko Yoshikawa | 1988-02-16 |