Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6487160 | Optical pickup, information recording apparatus and information reproducing apparatus | Osamu Kasono, Masayuki Iwasaki | 2002-11-26 |
| 6478570 | Disc-manufacturing mold and disc manufacturing apparatus using the same | Keiji Suga, Noriyoshi Shida, Tetsuya Imai | 2002-11-12 |
| 6464485 | Ultrasonic injection mold for an optical disk | Noriyoshi Shida, Keiji Suga, Kenichi Ishiguro, Yasunobu Higashika, Atsushi Sato +1 more | 2002-10-15 |
| 6344275 | Electrode material for forming stamper and thin film for forming stamper | Masahiro Katsumura, Takashi Ueno | 2002-02-05 |