Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE40141 | Recording medium cartridge and signal recording apparatus | Ryoichi Imanaka, Yoshikazu Goto | 2008-03-04 |
| RE38848 | Recording medium cartridge and signal recording apparatus | Ryoichi Imanaka, Yoshikazu Goto | 2005-10-25 |
| RE37659 | Recording medium cartridge and signal recording apparatus | Ryoichi Imanaka, Yoshikazu Goto | 2002-04-16 |
| 6204962 | Confocal microscope | — | 2001-03-20 |
| 5923509 | Disk cartridge with judging recesses | Yuji Takahashi, Toshiaki Kashihara, Yoshio Hata | 1999-07-13 |
| 5907535 | Disk cartridge with positioning hole | Yuji Takahashi, Toshiaki Kashihara, Yoshio Hata | 1999-05-25 |
| 5901129 | Tray with positioning protrusion for loading a disk cartridge | Yuji Takahashi, Toshiaki Kashihara, Yoshio Hata | 1999-05-04 |
| 5891359 | Liquid crystal compound | Yoshihiko Aihara, Tadaaki Isozaki, Noriko Yamakawa | 1999-04-06 |
| 5878013 | Recording and reproducing apparatus | Shinichi Maeda | 1999-03-02 |
| 5854777 | Recording medium cartridge and signal recording apparatus | Ryoichi Imanaka, Yoshikazu Goto | 1998-12-29 |
| 5837163 | Liquid crystal compounds | Koichi Numazawa, Noriko Yamakawa, Yoshiichi Suzuki | 1998-11-17 |
| 5825151 | Apparatus for driving stepping motor | Yoshihiro Ikawa, Teruyuki Takizawa | 1998-10-20 |
| 5812511 | Disk recording and reproducing apparatus | Hirofumi Furukawa, Shinichi Maeda | 1998-09-22 |
| 5799009 | Disk cartridge with an inclined groove | Yuji Takahashi, Toshiaki Kashihara, Yoshio Hata | 1998-08-25 |
| 5764622 | Recording medium cartridge and signal recording apparatus | Ryoichi Imanaka, Yoshikazu Goto | 1998-06-09 |
| 5737293 | Disc loading apparatus for loading optical discs in a cartridge or without | Shinichi Maeda | 1998-04-07 |
| 5436037 | Liquid crystal orientation controlling membranes and liquid crystal elements using the same | Nobuhiro Okabe, Yuvraj S. Negi, Tohru Ohode, Norio Yamamoto, Yuichiro Yamada | 1995-07-25 |
| 5417885 | Antiferroelectric liquid crystal compound | Yoshiichi Suzuki, Takashi Hagiwara | 1995-05-23 |
| 5278821 | Cleaning cartridge for an optical recording apparatus | Goro Naoki | 1994-01-11 |
| 5262086 | Liquid crystal compounds | Yoshiichi Suzuki, Horiyuki Mogamiya | 1993-11-16 |
| 5260929 | Optical disk drive including dust-proofing annular projections | Goro Naoki, Kazuo Momoo, Shoji Goto, Hiroshi Yamamoto | 1993-11-09 |
| 5229983 | Bias magnetic field generating apparatus for magneto-optical recording and reproducing system | Goro Naoki, Yukinori Okazaki, Ryoichi Imanaka | 1993-07-20 |
| 5207946 | Liquid crystal compounds | Koichi Numazawa, Noriko Yamakawa, Yoshiichi Suzuki | 1993-05-04 |
| 5206849 | Object lens holder and driving device | Hiroshi Yamamoto, Shoji Goto | 1993-04-27 |
| 5204020 | Liquid crystal compounds | Yoshiichi Suzuki, Hiroyuki Mogamiya | 1993-04-20 |