Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7297472 | Processing method for photoresist master, production method for recording medium-use mater, production method for recording medium, photoresist master, recording medium-use master and recording medium | Hisaji Oyake, Tatsuya Kato, Hajime Utsunomiya, Kenji Yoneyama | 2007-11-20 |
| 7014903 | Optical recording medium | Hiroshi Takasaki, Tsutomu Tsutsumi, Hideki Ishizaki | 2006-03-21 |
| 6898174 | Optical recording medium | Isamu Kuribayashi, Hajime Utsunomiya, Toshiki Aoi | 2005-05-24 |
| 6496462 | Optical recording method, optical recording apparatus, and optical recording medium | Isamu Kuribayashi, Hajime Utsunomiya, Toshiki Aoi | 2002-12-17 |
| 5827613 | Articles having diamond-like protective film and method of manufacturing the same | Masatoshi Nakayama | 1998-10-27 |
| 5707717 | Articles having diamond-like protective film | Masatoshi Nakayama | 1998-01-13 |
| 5662877 | Process for forming diamond-like thin film | Kunihiro Ueda, Masatoshi Nakayama | 1997-09-02 |
| 5620766 | Magneto-optical disk | Kenji Uchiyama, Michiki Naganawa | 1997-04-15 |
| 5590099 | Magneto-optical recording method and method for making information-carrying magneto-optical recording medium | Giichi Shibuya, Suguru Takayama, Hajime Utsunomiya | 1996-12-31 |
| 5541003 | Articles having diamond-like protective thin film | Masatoshi Nakayama | 1996-07-30 |
| 5477509 | Magneto-optical head circuit for minimizing the overshoot reversing current | Giichi Shibuya, Takashi Onodera | 1995-12-19 |
| 5430706 | Magneto-optical disk having lands and grooves for recording information | Hajime Utsunomiya | 1995-07-04 |
| 5406546 | Magneto-optical disk | Kenji Uchiyama, Hirokazu Fujioka | 1995-04-11 |
| 5185067 | Process for manufacturing diamond-like thin film | Masatoshi Nakayama, Kunihiro Ueda | 1993-02-09 |
| 5169452 | Apparatus for the synthesis of diamond-like thin films | Masatoshi Nakayama, Kunihiro Ueda | 1992-12-08 |
| 5154978 | Highly corrosion-resistant rare-earth-iron magnets | Masatoshi Nakayama, Koichi Yajima, Kenji Nakaya, Kunihiro Ueda, Takatoshi Ooyama +1 more | 1992-10-13 |