Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5369321 | Optical recording medium | Tadashi Koike, Tadahiko Mizukuki, Yuko Suzuki, Kouichi Shiina | 1994-11-29 |
| 5283094 | Optical recording medium | Nobuhisa Kitagawa, Tadashi Koike, Hiroyuki Hyakutake | 1994-02-01 |