Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7256942 | Single lens element, light source device and scanning optical device | Michihiro Yamagata, Motonobu Yoshikawa, Yasuhiro Tanaka, Yoshiharu Yamamoto, Daizaburo Matsuki +1 more | 2007-08-14 |
| 6761553 | Stamper replacement method and mold for forming optical disks | Masahumi Kurisu, Masashi Tokumori, Hideho Ariyoshi | 2004-07-13 |