Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE36624 | Optical recording media and information recording and reproducing units | Yoshihito Maeda, Isao Ikuta, Hisashi Andoh, Masaichi Nagai, Yoshimi Katoh +2 more | 2000-03-21 |
| 5583840 | ROM type optical recording medium with a high reflectivity and an optical head operable on ROM, write-one and rewritable disk | Hiroyuki Minemura, Yoshio Sato, Hisashi Andoh, Masaichi Nagai, Isao Ikuta +4 more | 1996-12-10 |
| 5484686 | Optical recording media and information recording and reproducing units | Yoshihito Maeda, Isao Ikuta, Hisashi Andoh, Masaichi Nagai, Yoshimi Katoh +2 more | 1996-01-16 |
| 5475656 | Optical disk memory and information processing apparatus | Yoshio Sato, Hiroyuki Minemura, Hisashi Andoh, Masaichi Nagai, Isao Ikuta +4 more | 1995-12-12 |
| 5432644 | Disk drive unit having motor components in a compact arrangement | Fumio Tajima, Hiroshi Kanazawa, Hiroshi Katayama, Kazuo Ohnishi, Tadashi Takahashi +3 more | 1995-07-11 |
| 5371730 | Optical memory and information processing apparatus | Yoshihito Maeda, Isao Ikuta, Masaichi Nagai, Yoshimi Katou, Hisashi Andoh +4 more | 1994-12-06 |
| 5317556 | Information processing apparatus and optical head incorporated therein | Yoshio Sato, Hiroyuki Minemura, Hisashi Andoh, Masaichi Nagai, Isao Ikuta +4 more | 1994-05-31 |
| 5311494 | Optical disk apparatus and optical head | Tatsuya Sugita, Yoshio Sato, Hiroyuki Minemura, Hisashi Andoh | 1994-05-10 |
| 5274612 | Information processor and disk memory used in the same | Yoshio Sato, Hiroyuki Minemura, Hisashi Andoh, Masaichi Nagai, Isao Ikuta +4 more | 1993-12-28 |
| 5177717 | Optical memory medium and its information recording and erasing method and apparatus | Yoshio Sato, Atsumi Watanabe, Satoshi Shimada, Hiroshi Sasaki, Hideki Nihei +3 more | 1993-01-05 |
| 5110792 | Method and apparatus of optical modulation using superconductive oxide material | Takahiro Nakayama, Kunihiro Tamahashi, Moriaki Fuyama, Hiroyuki Minemura, Yoshio Sato +1 more | 1992-05-05 |
| 5101096 | Optical recording sheet and method and apparatus for reproducing the same | Shinji Ohyama, Masahiko Ibamoto, Atsushi Kanke, Tatsuki Inuzuka, Masahiro Takasaka | 1992-03-31 |
| 5055731 | High-speed two-dimensional electrostatic actuator | Hideki Nihei, Hiroyuki Minemura, Hiroshi Kimura, Shigeki Morinaga | 1991-10-08 |
| 4978187 | Optical element, optical disc and rotary encoder with the optical element | Hiroyuki Minemura, Yoshio Sato, Hiroaki Koyanagi, Shinji Ohyama | 1990-12-18 |
| 4937808 | Intergrated optical head with flexible substrate portion | Satoshi Shimada, Shinji Ohyama, Manabu Sato, Masahiko Ibamoto, Yoshio Sato +3 more | 1990-06-26 |
| 4862440 | Optical head with optical beam control using acoustic wave device | Norifumi Miyamoto, Yoshio Sato, Satoshi Shimada, Hiroshi Sasaki, Hiroaki Koyanagi +1 more | 1989-08-29 |
| 4841514 | Optical recording method and apparatus using two fight spots | Atsumi Watanabe, Yoshio Sato, Satoshi Shimada, Hiroshi Sasaki | 1989-06-20 |
| 4811328 | Optical recording and reproducing device | Tetsuo Ito, Hiroshi Sasaki, Yoshio Sato, Satoshi Shimada, Norifumi Miyamoto +2 more | 1989-03-07 |
| 4775967 | Beam spot control device using a thin micro lens with an actuator | Satoshi Shimada, Hiroshi Sasaki, Hideki Nihei, Norifumi Miyamoto | 1988-10-04 |
| 4773060 | Optical information recording device | Satoshi Shimada, Yoshio Sato, Hiroshi Sasaki, Tetsuo Ito, Hideki Nihei +3 more | 1988-09-20 |
| 4718053 | Optical information apparatus and method of recording and erasing information | Yoshio Sato, Satoshai Shimada, Hiroshi Sasaki, Norifumi Miyamoto, Hideki Nihei +4 more | 1988-01-05 |
| 4499986 | Control apparatus for passenger conveyor | Seiya Shima, Morio Kanasaki, Hayashi Nakazawa | 1985-02-19 |