Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7153558 | Optical information medium and production method therefor | Naoki Hayashida, Rie Ihara | 2006-12-26 |
| 7138155 | Method for evaluating optical information medium and optical information medium | Hidetake Itoh, Naoki Hayashida | 2006-11-21 |
| 7132146 | Optical recording medium | Hidetake Itoh, Naoki Hayashida, Kenji Yoneyama, Tsuyoshi Komaki, Kentaro Iida | 2006-11-07 |
| 7090909 | Hard coat agent composition and optical information medium using the same | Hidetake Itoh, Kenji Yoneyama | 2006-08-15 |
| 7092091 | Method of evaluating optical information medium | Hidetake Itoh | 2006-08-15 |
| 7074472 | Hard coat agent composition and optical information medium using the same | Hidetake Itoh, Naoki Hayashida | 2006-07-11 |
| 7026030 | Optical information medium | Hidetake Itoh, Naoki Hayashida | 2006-04-11 |
| 7026371 | Electron beam curable urethane resin for magnetic recording medium, method of manufacturing the same, and magnetic recording medium using the same | Hideki Sasaki, Hiroyuki Yamada, Kenichi Kitamura | 2006-04-11 |
| 7012160 | Fluorine-containing acetophenone derivative, surface layer material containing the same as photo initiator, article with composite hard coat layer, and method for forming composite hard coat layer | Naoki Hayashida | 2006-03-14 |
| 6153295 | Magnetic recording medium | Akinori Nishizawa, Shuji Sakaguchi | 2000-11-28 |
| 5294495 | Magnetic recording medium | Kazuhiro Kuroda, Yasushi Ishikawa | 1994-03-15 |
| 4837083 | Magnetic recording medium | Kazuhiro Kuroda, Hitoshi Azegami | 1989-06-06 |
| 4708909 | Radiation-curable, magnetic coating material and magnetic recording medium using the same | Akira Ohtsuki, Ryozo Konno, Nobumori Kanno, Makio Sugai, Takashi Mihoya +4 more | 1987-11-24 |
| 4670340 | Magnetic recording medium and method | Yukihiro Isobe, Masaharu Nishimatsu, Osamu Shinoura, Yuichi Kubota | 1987-06-02 |
| 4526837 | Magnetic recording medium | Akira Ohtsuki, Ryozo Konno, Makio Sugai, Masaharu Nishimatsu, Yuichi Kubota +1 more | 1985-07-02 |
| 4511629 | Magnetic recording medium | Ryozo Konno, Makio Sugai, Yuichi Kubota, Masaharu Nishimatsu, Yukihiro Isobe +1 more | 1985-04-16 |
| 4451531 | Magnetic recording medium and method | Yukihiro Isobe, Masaharu Nishimatsu, Osamu Shinoura, Yuichi Kubota | 1984-05-29 |
| 4419406 | Magnetic recording medium and production thereof | Yukihiro Isobe, Masaharu Nishimatsu, Osamu Shinoura, Yuichi Kubota | 1983-12-06 |
| 4415630 | Process of making magnetic recording medium | Yuichi Kubota, Masaharu Nishimatsu | 1983-11-15 |
| 4329398 | Magnetic recording medium | Akihiko Hosaka | 1982-05-11 |
| 4307154 | Magnetic recording medium | Akihiko Hosaka | 1981-12-22 |