Issued Patents All Time
Showing 76–100 of 101 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6493844 | Error detector, semiconductor device, and error detection method | Masami Kanasugi, Koichi Kuroiwa, Mahiro Hikita | 2002-12-10 |
| 6418112 | Information record medium | Kazuo Kuroda | 2002-07-09 |
| 6307824 | Dye record medium, record disc producing apparatus, and information recording/reproducing apparatus | Kazuo Kuroda, Akiyoshi Inoue | 2001-10-23 |
| 6278677 | Disk loading device having disk holding tray separable into a plurality of segments | Shinichi Sako, Hideto Takeuchi, Yoshifusa Fujioka, Masayuki Isobe, Takahiko Suezawa | 2001-08-21 |
| 6202102 | State machine and communication terminal | Koichi Kuroiwa | 2001-03-13 |
| 6144625 | Optical disc discriminating system | Kazuo Kuroda | 2000-11-07 |
| 6028834 | Method for recording test data on recording medium | Kazuo Kuroda, Akiyoshi Inoue | 2000-02-22 |
| 5983287 | Communication terminal having a state machine for automatically starting subsequent control in response to a lock detection signal provided by a PLL (phase lock loop) | Koichi Kuroiwa | 1999-11-09 |
| 5949749 | Optical disk, reproducing device and recording device therefor | Eiji Muramatsu, Kunihiko Horikawa | 1999-09-07 |
| 5926453 | Optical disk having first and second recording areas with wobble frequencies that do not interfere with EFM signal | Eiji Muramatsu, Akiyoshi Inoue, Hiroyuki Takahashi, Shigenori Murakami, Toshihiko Takishita | 1999-07-20 |
| 5901123 | Method and apparatus for recording information, including control information, onto an information record medium | Akiyoshi Inoue, Kazuo Kuroda, Toshio Suzuki, Hiroyuki Ohira | 1999-05-04 |
| 5818807 | Optical medium having a test recording area and method for recording test data thereon | Kazuo Kuroda, Akiyoshi Inoue | 1998-10-06 |
| 5778251 | State machine in which subsequent state can be directly inputted externally and transition can be stopped retaining the current state | Koichi Kuroiwa | 1998-07-07 |
| 5768232 | Information reproducing apparatus for optical disc | Eiji Muramatsu, Akiyoshi Inoue | 1998-06-16 |
| 5675564 | Information reproducing apparatus for optical disc having a tilt detector therein | Eiji Muramatsu, Akiyoshi Inoue | 1997-10-07 |
| 5625614 | Optical disc data recording apparatus and method using modified pit lengths | — | 1997-04-29 |
| 5592463 | Apparatus for and method for determining optimum power for recording information on recordable optical disc | Eiji Muramatsu, Akiyoshi Inoue, Hiroyuki Takahashi, Shigenori Murakami, Toshihiko Takishita | 1997-01-07 |
| 5550799 | Device for and method of calibrating optimum recording power for recordable optical disc recording apparatus | Akiyoshi Inoue, Eisaku Kawano, Naoharu Yanagawa, Hiroshi Suzuki | 1996-08-27 |
| 5535034 | Optical transceiver unit | — | 1996-07-09 |
| 5371725 | Position control system for a read-write head of a magneto-optical disc player having heads which move independently from each other | Naoharu Yanagawa | 1994-12-06 |
| 5321686 | Read-write head of an magneto-optical disc player with both heads magnetically coupled together | Naoharu Yanagawa | 1994-06-14 |
| 5162661 | Position detector for maintaining a fixed distance between two objects | Katsuharu Sato, Naoharu Yanagawa | 1992-11-10 |
| 5093816 | Optical magnetic recording and reproducing system | Naoharu Yanagawa | 1992-03-03 |
| 5027334 | Magneto-optical disk device with movable coil | Toshihiro Yamanaka, Tetsuyuki Takemoto, Masahiro Horii | 1991-06-25 |
| 4982299 | Linear motor locking mechanism in a disc unit | Masahiro Horii, Akio Horiguchi, Tetsuyuki Takemoto | 1991-01-01 |