Issued Patents All Time
Showing 726–750 of 822 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4974140 | Voltage stability discrimination system for power systems | Kenji Iba | 1990-11-27 |
| 4963121 | Liquid pressure tensioner | Masato Himura | 1990-10-16 |
| 4958394 | Seat cushion for vehicle and method of making the same | Muneharu Urai | 1990-09-25 |
| 4958001 | Dicyclohexyl-3,4,3',4'-tetracarboxylic acid or dianhydride thereof and polyamide-acid and polyimide obtained therefrom | Tohru Kikuchi, Toshiyuki Fujita, Takayuki Saito, Mitsumasa Kojima, Hidetaka Sato | 1990-09-18 |
| 4933744 | Resin encapsulated electronic devices | Tadanori Segawa, Masahiro Kitamura, Shunichi Numata, Kunihiko Nishi | 1990-06-12 |
| 4915141 | Auxiliary nozzle for air jet loom | Yoshio Nitta, Masayuki Muramatsu | 1990-04-10 |
| 4916377 | Voltage-reactive power control apparatus | Makoto Terada | 1990-04-10 |
| 4913812 | Active support substance and adsorbent for chromatography | Soyao Moriguchi, Yoshito Nakayama, Tae Ishii, Seiji Shioda, Isao Kaiho | 1990-04-03 |
| 4909092 | Toroidal type infinitely variable transmission | Hisashi Machida, Takaaki Shiratani | 1990-03-20 |
| 4910089 | Magnetic recording medium | Hiroshi Mitake, Takashi Wakabayashi, Nozomu Ueshiba | 1990-03-20 |
| 4906195 | Built-in function type wiring apparatus | Mitsuji Kubota, Toru Takahashi | 1990-03-06 |
| 4902382 | Process for producing a neutral paper | Takao Sakabe, Akira Honma, Takao Miyamura, Yoshihito Meguro | 1990-02-20 |
| 4897740 | Recording/reproducing system for a magnetic recording medium including synchronization detecting circuit | — | 1990-01-30 |
| D305531 | Electrical junction box for automobile wiring system | Etsuji Matsumoto | 1990-01-16 |
| 4884263 | Packet-switched communications network with parallel virtual circuits for re-routing message packets | — | 1989-11-28 |
| 4879340 | Adsorbent composed of porous beads of chitosan and adsorption method using same | Soyao Moriguchi, Hiroko Watanabe, Motoaki Satoh, Michio Abe, Yasuo Iwata | 1989-11-07 |
| 4868813 | Packet concentrator and switch including a controller for assigning priorities to space switch input terminals for control of buffers | — | 1989-09-19 |
| 4865385 | Reclining device for bucket seat | — | 1989-09-12 |
| 4850622 | Pipe joint | — | 1989-07-25 |
| 4849957 | Digital signal reproducing circuit | — | 1989-07-18 |
| 4838287 | Method and device for electromagnetic removal of spatter on nozzle of arc welding torch | Hitoshi Matsui | 1989-06-13 |
| 4831309 | Cathode ray tube apparatus | Shigeya Ashizaki, Osamu Konosu, Masao Natsuhara | 1989-05-16 |
| 4830518 | Sealed cylindrical roller bearing | Takaaki Shiratani, Moichi Chiba | 1989-05-16 |
| 4819718 | Heat exchanging unit with a hydrogen adsorption alloy | Hiroshi Ishikawa, Keisuke Oguro, Akihiko Kato, Teruya Okada, Shizuo Sakamoto +2 more | 1989-04-11 |
| 4819717 | Heat exchanging unit with a hydrogen adsorption alloy | Hiroshi Ishikawa, Keisuke Oguro, Akihiko Kato, Teruya Okada, Shizuo Sakamoto +2 more | 1989-04-11 |