Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5583836 | Optical recording/reproducing apparatus capable of multi-track access for simultaneous multitrack recording/reproduction | Takao Rokutan, Mitsuo Oshiba, Naoaki Tani, Takumi Sugaya | 1996-12-10 |
| 5568458 | Optical information recording and reproducing apparatus in which reproducing light is used to perform servo control having no offset at recording mode | Naoaki Tani, Takumi Sugaya, Takao Rokutan, Mitsuo Oshiba | 1996-10-22 |
| 5511051 | Optical recording/reproducing apparatus capable of multi-track access for simultaneous multirack recording/reproduction | Takao Rokutan, Mitsuo Oshiba, Naoaki Tani, Takumi Sugaya | 1996-04-23 |
| 5438563 | Optical information recording/reproducing device which simultaneously reproduces information from plural tracks and optical information recording/reproducing method | Mitsuo Oshiba, Naoaki Tani, Takumi Sugaya, Takao Rokutan | 1995-08-01 |
| 5402399 | Apparatus and method for reproducing information data from optical cards | Mitsuo Oshiba, Naoaki Tani, Takumi Sugaya, Takao Rokutan | 1995-03-28 |
| 5400308 | Optical information recording/reproducing device capable of recording information on a moving medium and reproducing information by using reproducing light beams | Takumi Sugaya, Takao Rokutan, Mitsuo Oshiba, Naoaki Tani | 1995-03-21 |
| 5398225 | Optical information recording/regenerating apparatus and track scanning method for an optical information recording/regenerating apparatus | Takumi Sugaya, Takao Rokutan, Mitsuo Oshiba, Naoaki Tani | 1995-03-14 |
| 5394385 | Optical information recording/reproducing apparatus for performing positioning of recording/reproducing spot by selection of pairs of photo detecting elements | Naoaki Tani, Takumi Sugaya, Takao Rokutan, Mitsuo Oshiba, Akira Shirai | 1995-02-28 |
| 5371723 | Recording and reproducing system for use with different arrangements of optical cards | — | 1994-12-06 |
| 5192858 | Optical card scanning apparatus | — | 1993-03-09 |
| 5047754 | Display apparatus for displaying a position indicating mark over a plurality of display screens | Yuichiro Akatsuka, Akira Matsueda | 1991-09-10 |