Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6697398 | Laser light intensity controller | Naoharu Yanagawa | 2004-02-24 |
| 6075759 | Optical information recording and reproducing apparatus | Naoharu Yanagawa, Hiroshi Suzuki, Shinji Suzuki, Yasumitsu Suzuki, Masanori Nakahara | 2000-06-13 |
| 5982733 | Optical head | Naoharu Yanagawa | 1999-11-09 |
| 5894460 | Magneto-optical card recording apparatus employing an initialization magnet and a recording magnet | Naoharu Yanagawa, Hiroshi Suzuki, Shinji Suzuki, Yasumitsu Suzuki, Masanori Nakahara | 1999-04-13 |
| 5867113 | Variable length code decoding apparatus having parallel start code and shift operations | Takayoshi Shimazawa, Goichi Ootomo | 1999-02-02 |
| 5673245 | Rotary optical system for guiding and converging divided light beams to a tape recording medium | Naoharu Yanagawa, Susumu Nomura | 1997-09-30 |
| 5555538 | Optical pickup | Naoharu Yanagawa | 1996-09-10 |
| 4539088 | Electrodialysis desalination process system for seawater | Hiroshi Kaneda, Kenji Shibata, Mitugu Nomura | 1985-09-03 |
| 4539091 | Electrodialysis desalination process and system for seawater | Hiroshi Kaneda, Kenji Shibata, Mitugu Nomura | 1985-09-03 |