Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5486396 | Optical recording medium and production thereof | Kouichi Yabuuchi, Shinichi Murakami, Tomoyoshi Sasakawa, Kouhei Shizuka, Nobuhisa Kitagawa +1 more | 1996-01-23 |
| 5478405 | Method and apparatus for cleaning cylindrical outer surface of a disk for manufacturing disk-type information recording medium and a disk-type information recording medium made by using a disk cleaned by said method or apparatus | Hitoshi Miura | 1995-12-26 |
| 5424102 | Optical recording medium and production thereof | Kouichi Yabuuchi, Shinichi Murakami, Tomoyoshi Sasakawa, Kouhei Shizuka, Nobuhisa Kitagawa +1 more | 1995-06-13 |
| 5375285 | Apparatus for cleaning cylindrical outer surface of a disk | Hitoshi Miura | 1994-12-27 |
| 5369321 | Optical recording medium | Tadashi Koike, Tomoyoshi Sasakawa, Yuko Suzuki, Kouichi Shiina | 1994-11-29 |
| 5344682 | Optical recording medium | Tadashi Koike, Nobuhisa Kitagawa, Sumio Hirose | 1994-09-06 |