Issued Patents All Time
Showing 251–275 of 338 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6304538 | Information reproducing apparatus for reproducing digital information on record medium | — | 2001-10-16 |
| 6301520 | Spindle end positional deviation correction system for machine tools | — | 2001-10-09 |
| 6301472 | Portable telephone system | Jiro Nakasu, Tomoaki Tsukada, Kunio Kodaka, Yasushi Onooka, Kazuhiro Yamamoto +2 more | 2001-10-09 |
| 6301511 | Numerical control unit for turning mechanism | Jun Fujita, Kiyoshi Inoue | 2001-10-09 |
| 6278670 | Optical head apparatus | Tatsuo Ito, Yoshiaki Komma, Hiroaki Yamamoto, Seiji Nishino | 2001-08-21 |
| 6272105 | Optical disc and optical disc reproducing apparatus | — | 2001-08-07 |
| 6246643 | Disk changer device | Nobuhiro Satoh, Kazuki Takai | 2001-06-12 |
| 6239851 | Planar light source device having polarization separator formed of two sheets with mating triangular prisms and different indices of refraction | Tsuyonobu Hatazawa, Kozo Nakamura, Takashi Watanabe, Johji Mamiya, Masaru Suzuki +1 more | 2001-05-29 |
| 6233214 | Information data recording/reproducing method | — | 2001-05-15 |
| 6198587 | Recording information reproducing apparatus for increasing an amplitude of a high frequency component of the reproduced signal | — | 2001-03-06 |
| 6111846 | Apparatus for reproducing recorded information | — | 2000-08-29 |
| 6078516 | Ferroelectric memory | — | 2000-06-20 |
| 6009067 | Apparatus for reproducing recorded information | — | 1999-12-28 |
| 5995465 | Digital signal reproducing apparatus | Masaru Umezawa, Hideki Kobayashi | 1999-11-30 |
| 5967996 | Apparatus and method for aiding transmission | Toshihiko Kadota, Hiroyuki Ichiyoshi, Hiroyuki Koizumi | 1999-10-19 |
| 5920537 | Correction element of lower light intensity around an optical axis of an optical head with a plurality of focal points | Yoshiaki Komma, Sadao Mizuno, Kenichiro Urairi | 1999-07-06 |
| 5912868 | Optical head for reproducing data from first and second optical disks | Sadao Mizuno, Noboru Ito, Kenichiro Urairi, Yoshiaki Komma | 1999-06-15 |
| 5901128 | Recorded information reproducing apparatus | Hideki Kobayashi, Masaru Umezawa | 1999-05-04 |
| D408916 | X-ray digital camera | Hiroyuki Koizumi | 1999-04-27 |
| 5895182 | Spindle end portion cleaning device for a machine tool | Mamoru Akiyama | 1999-04-20 |
| 5839862 | Machine tool with spindle head pivotable about two axes | Kazumichi Aoki, Tadashi Sano | 1998-11-24 |
| 5835510 | High-speed viterbi decoder | — | 1998-11-10 |
| 5809079 | Branchmetric calculation circuit in a viterbi decoder | — | 1998-09-15 |
| 5799046 | Digital data signal reproducing apparatus | — | 1998-08-25 |
| 5796711 | Optical disc having plural zones of recording tracks | Yoshimi Tomita | 1998-08-18 |