Issued Patents All Time
Showing 501–525 of 552 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5732088 | Data recording/reproducing apparatus, method thereof, and data record medium | — | 1998-03-24 |
| 5694381 | Information data reproducing system, reproducing apparatus, reproducing method, data forming apparatus, and data record medium | — | 1997-12-02 |
| 5675586 | Record medium, and method for recording to and reproducing from a record medium | Tamotsu Yamagami, Satoshi Otsuka, Minoru Tobita | 1997-10-07 |
| 5592465 | Disc recording method | Tamotsu Yamagami, Tetsu Watanabe | 1997-01-07 |
| 5587901 | Optical recording medium having a pre-formed recording track which is offset along its width to record frame sync signals of information | Tamotsu Yamagami, Masanobu Yamamoto | 1996-12-24 |
| 5579783 | O-ring test method and apparatus for measuring muscular strength | Takayoshi Naoi, Minoru Ohzeki, Tomoko Ono, Mitsuyoshi Yamamoto | 1996-12-03 |
| 5517477 | Data recording method and data reproducing apparatus | — | 1996-05-14 |
| 5506623 | Data compression methods and systems with quantization distortion measurement means | Yuichi Kojima | 1996-04-09 |
| 5497367 | Optical recording medium | Tamotsu Yamagami | 1996-03-05 |
| 5469416 | Apparatus for reproducing recorded data and selectively either of read-only or recorded synchronization information from a magneto-optical recording medium | Tamotsu Yamagami, Masanobu Yamamoto | 1995-11-21 |
| 5455814 | Data recording method | — | 1995-10-03 |
| 5406538 | Optical disk system with table of contents | Masahiro Hotori, Hiroshi Ogawa | 1995-04-11 |
| 5327406 | Data recording method and data recording medium | — | 1994-07-05 |
| 5325347 | Data recording method and data reproducing apparatus with contiguous data recording | — | 1994-06-28 |
| 5311491 | Method of data recording for optical disc having burst modulated track | Tamotsu Yamagami | 1994-05-10 |
| 5297125 | Optical recording medium and information recording apparatus for recording bursts of low-pass filtered reproduce-only information in a wobbling pre-groove on the optical recording medium | Tamotsu Yamagami | 1994-03-22 |
| 5265081 | Disc recording/reproducing apparatus having two constant linear velocities with controlled step switching between the two | Kazutoshi Shimizume | 1993-11-23 |
| 5257271 | Sample data transmission apparatus | Roger Lagadec, Keisuke Sekiguchi, Hiroyuki Yamauchi, Masaru Tezuka, Satoru Tobita +1 more | 1993-10-26 |
| 5216656 | Method for recording a CD-RAM which is compatible with a conventional CD recording format while allowing fast accessing | Tamotsu Yamagami | 1993-06-01 |
| 5206646 | Digital modulating method | Tamotsu Yamagami | 1993-04-27 |
| 5185732 | Recording medium and recording and reproducing apparatus employing the recording medium | Hiroshi Ogawa, Masanobu Yamamoto | 1993-02-09 |
| 5155485 | Digital modulating apparatus and digital demodulating apparatus | Tamotsu Yamagami | 1992-10-13 |
| 5148422 | Optical recording medium having a data recording track with offset data storing regions | Tamotsu Yamagami | 1992-09-15 |
| 5138598 | Optical disk having relatively wide RAM tracks and relatively narrow ROM tracks | Tamotsu Yamagami | 1992-08-11 |
| 5130969 | Apparatus having defective sector compensation coupled with analog information mode and digital information mode recording/reproducing capability | — | 1992-07-14 |