Issued Patents All Time
Showing 51–63 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4903066 | Optical system for focus state detection | Keiji Moriyama | 1990-02-20 |
| 4881217 | Method of making optically recorded information medium by exposure to ultraviolet light | — | 1989-11-14 |
| 4863264 | Photoanalysis apparatus with means for correcting flow rate of fluid carrying particles and/or position of applied light beam for examination and photoanalysis method therefor | Ryo Miyake, Isao Yamazaki | 1989-09-05 |
| 4652218 | Canned motor pump for use at high temperatures | Toshiaki Tsutsui | 1987-03-24 |
| 4634063 | Stator winding apparatus | Hideji Watanabe, Keizou Watanabe | 1987-01-06 |
| 4595294 | Position detecting device | Kenji Fujii, Hidehiro Ogawa, Akio Takahama | 1986-06-17 |
| 4572623 | Objective lens for optical disc | Masashi Tanaka | 1986-02-25 |
| 4531815 | Objective lens | Kunio Konno, Masashi Tanaka | 1985-07-30 |
| 4482986 | Objective lens mount for optical disc player | Toyokazu Noda | 1984-11-13 |
| 4476555 | Tracking servo apparatus for an optical information reproducing system | Yoshiro Joichi | 1984-10-09 |
| 4458980 | Optical reproducing head | Chiaki Kojima | 1984-07-10 |
| 4312559 | Method of producing an inline hologram lens | Chiaki Kojima, Kayoko Hasegawa | 1982-01-26 |
| 4253723 | Apparatus for optically reading information from a record carrier | Chiaki Kojima, Takashi Otobe | 1981-03-03 |