Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6411575 | OPTICAL RECORDING MEDIUM HAVING AN AREA FOR RECORDING A PLURALITY OF RECORDING/REPRODUCTION CONDITIONS TO BE USED IN RECORDING/REPRODUCTION APPARATUSES AND RECORDING/REPRODUCTION METHOD AND APPARATUS THEREFOR | Kenichi Nishiuchi, Shigeaki Furukawa, Kenji Narumi, Hiroyuki Yamaguchi | 2002-06-25 |
| 5883720 | Method of measuring a film thickness of multilayer thin film | Eiji Ohno, Nobuo Akahira | 1999-03-16 |
| 5681632 | Optical information recording medium | Hideki Kitaura, Takeo Ohta, Ken'ichi Nagata, Katsumi Kawahara, Noboru Yamada | 1997-10-28 |
| 5674649 | Method of recording information | Kazumi Yoshioka, Takeo Ohta, Hidemi Isomura | 1997-10-07 |
| 5665520 | Optical recording medium | Kazumi Yoshioka, Takeo Ohta, Hidemi Isomura | 1997-09-09 |
| 5395669 | Optical record medium | Katsumi Kawahara, Takeo Ohta, Shigeaki Furukawa | 1995-03-07 |
| 5256518 | Information storage disk employing a reflective layer having good malleability | Hidemi Isomura, Takeo Ohta, Shigeaki Furukawa | 1993-10-26 |
| 5147701 | Information recording medium | Shigeaki Furukawa, Takeo Ohta, Hidemi Isomura | 1992-09-15 |