Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7507523 | Optical information recording medium, method of manufacturing the optical information recording medium, and method of and apparatus for recording/reproducing optical information | Katsuyuki Yamada, Shinya Narumi, Makoto Harigaya, Katsuhiko Tani, Noriyuki Iwata +7 more | 2009-03-24 |
| 7364781 | Optical recording medium, recording material, method of producing optical recording medium and optical recording, reading and rewriting method | Kazunori Ito, Eiko Hibino, Makoto Harigaya, Hajime Yuzurihara, Nobuaki Onagi +3 more | 2008-04-29 |
| 7366075 | Phase-change optical recording medium and recording method and apparatus for the same | Kazunori Ito, Michiharu Abe, Makoto Harigaya, Eiko Suzuki, Nobuaki Onagi +2 more | 2008-04-29 |
| 7102977 | Phase-change optical recording medium and recording method and apparatus for the same | Kazunori Ito, Michiharu Abe, Makoto Harigaya, Eiko Suzuki, Nobuaki Onagi +2 more | 2006-09-05 |
| 6884488 | Phase-change optical recording medium and recording method and apparatus for the same | Kazunori Ito, Michiharu Abe, Makoto Harigaya, Eiko Suzuki, Nobuaki Onagi +2 more | 2005-04-26 |
| 6884487 | Optical recording medium, recording material, method of producing optical recording medium, and optical recording, reading and rewriting method | Kazunori Ito, Eiko Hibino, Makoto Harigaya, Hajime Yuzurihara, Nobuaki Onagi +3 more | 2005-04-26 |
| 6777057 | Phase-change optical recording medium and recording method and apparatus for the same | Kazunori Ito, Michiharu Abe, Makoto Harigaya, Eiko Suzuki, Nobuaki Onagi +2 more | 2004-08-17 |
| 6548137 | Phase-change optical recording medium and recording method and apparatus for the same | Kazunori Ito, Michiharu Abe, Makoto Harigaya, Eiko Suzuki, Nobuaki Onagi +2 more | 2003-04-15 |
| 6096398 | Phase-change optical recording medium | Hajime Yuzurihara, Hiroshi Deguchi, Michiaki Shinotsuka, Makoto Harigaya, Mikio Kinoshita +2 more | 2000-08-01 |
| 5587826 | Optical beam scanning apparatus adjusting focal point over entire image forming area by feedback control | — | 1996-12-24 |
| 5541761 | Optical beam scanning apparatus adjusting focal point over entire image forming area by feedback control | — | 1996-07-30 |
| 5402154 | Optical recording system capable of changing the beam size | Hiroyoshi Funato | 1995-03-28 |
| 5272561 | Electrooptic device | — | 1993-12-21 |
| 5140454 | Electrooptic device | — | 1992-08-18 |
| 5124835 | Optical scanning apparatus | Hiroyoshi Funato | 1992-06-23 |
| 5033806 | Optical scanner | Kan Tomita | 1991-07-23 |
| 5031978 | Recording optical system | Hiroyoshi Funato | 1991-07-16 |
| 5020885 | Optical element | — | 1991-06-04 |
| 4633271 | Optical writing device | Hideo Segawa, Toshiyuki Inokuchi, Fumio Asano | 1986-12-30 |