Issued Patents All Time
Showing 451–475 of 620 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5331612 | Magneto-optical recording apparatus using the magnetic field modulation method | Yoshiteru Murakami, Kenji Ohta | 1994-07-19 |
| 5325344 | Magneto-optical recording and reproducing device having integrally formed recording and reproducing magnetic heads | Kenji Ohta, Tetsurou Muramatsu, Tatsushi Yamamoto, Toshio Ishikawa | 1994-06-28 |
| 5317555 | Optical head device utilizing partially overlapping light spots to read information from a readout layer | Yoshiteru Murakami, Junsaku Nakajima, Kenji Ohta | 1994-05-31 |
| 5311853 | Exhaust gas cleaning device for an internal combustion engine | Masashi Chino, Tohru Hashimoto, Mitsuhiro Miyake, Minoru Nishida, Hideaki Katashiba | 1994-05-17 |
| 5305300 | Magneto optical storage device using a multi-layer film of Pt/Co laminated sections | Kenji Ohta, Junsaku Nakajima, Yoshiteru Murakami | 1994-04-19 |
| 5305254 | Magneto-optic memory device | Yoshiteru Murakami, Junichiro Nakayama, Ichiro Hiramatsu, Kenji Ohta, Kazuo Van +1 more | 1994-04-19 |
| 5293359 | Magnetic recording and reproducing apparatus having a ferrimagnetic recording medium, a magnetic head and first and second light sources | Kenji Ohta, Junsaku Nakajima, Yoshiteru Murakami, Junji Hirokane | 1994-03-08 |
| 5280376 | Light transmission system | Keiji Okubo | 1994-01-18 |
| 5278810 | Magneto-optical recording medium whereon recording is carried out with an overwriting function | Junichiro Nakayama, Hiroyuki Katayama, Kenji Ohta | 1994-01-11 |
| D342512 | Combined camera and monitor television receiver | Touru Ebihara, Jyun Furuya, Atuo Yoshida, Atutoshi Satou, Hiroshi Yoshikawa | 1993-12-21 |
| D339123 | Video tape recorder | Kouichi Kasama, Sumie Komuro, Jun Furuya, Takanori Nishiyama, Kenji Watabe | 1993-09-07 |
| 5241530 | Polycarbonate turntable for a compact disk player | Kazuo Kobayashi, Yoshinori Yamada, Masakazu Kurumada, Shinji Nakayama, Fuyuki Shirai | 1993-08-31 |
| 5229046 | Process for producing thermal shock-resistant silicon nitride sintered material | Keiichiro Watanabe | 1993-07-20 |
| D336466 | Portable computer | Atsuhiko Urushihara, Shinji Shibuya, Koji Suso, Taisuke Kashima | 1993-06-15 |
| 5206358 | Process for manufacturing petroleum resin | Fumio Ochiai, Yo-ichi Ikeda, Katsumi Minomiya | 1993-04-27 |
| 5204522 | Method for driving a photoelectric device and a method for driving an image intensifier using the photocathode device | Mitsunori Nishizawa | 1993-04-20 |
| 5202862 | Magneto-optical recording and reproducing device having integrally formed recording and reproducing magnetic heads | Kenji Ohta, Tetsurou Muramatsu, Tatsushi Yamamoto, Toshio Ishikawa | 1993-04-13 |
| 5202860 | Magneto-optic reproducing device using right and left circularly polarized light | Yoshiteru Murakami, Junsaku Nakayima, Kenji Ohta | 1993-04-13 |
| 5196732 | Step voltage generator | Masanori Hirano, Teruo Takeshita | 1993-03-23 |
| 5193820 | Three-piece type oil ring assembly | Takeji Tsuchiya, Yukio Tateishi, Katsushi Ishihara | 1993-03-16 |
| 5193082 | Optical/magnetic composite head having magnetic and optical heads in one integrated unit | Tomoyuki Miyake, Junichiro Nakayama, Hiroyuki Katayama, Kenji Ohta | 1993-03-09 |
| D332958 | Combined video tape recorder and camera | Atsuhiko Urushihara, Atsutoshi Sato, Hiroto Takita, Takanori Nishiyama, Masami Mizuno | 1993-02-02 |
| D332794 | Combined video tape recorder and camera | Hiroto Takita, Takanori Nishiyama, Atuhiko Urushihara, Akira Ohkura | 1993-01-26 |
| 5178809 | Process for producing silicon nitride sintered material | Keiichiro Watanabe | 1993-01-12 |
| 5174425 | Steering angle detecting device for a motor vehicle | Satoshi Takahashi, Junji Kojima, Kiyoharu Higashino | 1992-12-29 |