Issued Patents All Time
Showing 251–275 of 287 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5333714 | Bill discriminating apparatus | Masayuki Watabe, Yoshinori Maruyama | 1994-08-02 |
| 5326866 | Liquid azo dye and ink composition containing the same | Tatsuya Yagyu, Tetsui Akase | 1994-07-05 |
| 5295013 | Optical receiver of direct detection type | — | 1994-03-15 |
| 5290347 | Salt-forming type dye, and its concentrated solution composition and ink composition | Tatsuya Yagyu, Katsumi Fukuda | 1994-03-01 |
| 5289275 | Surveillance monitor system using image processing for monitoring fires and thefts | Hiromitsu Ishii, Kiyoshi Watanabe | 1994-02-22 |
| 5281264 | Salt-forming type dye and ink composition | Tatsuya Yagyu, Tetsui Akase | 1994-01-25 |
| 5270573 | Resin mold field effect semiconductor device | Kanesige Takayanagi | 1993-12-14 |
| 5160504 | Method of dyeing leather with metal complex dyes comprised of metalizable azo compounds | Tatsuya Yagyu, Katsumi Fukuda, Minako Terasaki | 1992-11-03 |
| 5134624 | Method and apparatus for stabilizing oscillation frequency separation among a plurality of laser devices | — | 1992-07-28 |
| 5095100 | Metal complex dyes and preparation thereof | Tatsuya Yagyu, Katsumi Fukuda, Minako Terasaki | 1992-03-10 |
| 5075783 | Facsimile apparatus and facsimile communication method | Takehiro Yoshida, Susumu Matsuzaki | 1991-12-24 |
| 5069719 | Organic solvent based ink composition | — | 1991-12-03 |
| 5051953 | EEPROM device including read, write, and erase voltage switching circuits | Shooji Kitazawa | 1991-09-24 |
| 5034058 | Aqueous ink composition | Kazutoshi Akiyama, Tatsuya Yagyu | 1991-07-23 |
| 5031998 | Polarization control on signal beams for principal-state bidirectional transmission through an optical fiber | Shuntaro Yamazaki | 1991-07-16 |
| 5013116 | Polarization control of bidirectionally transmitted beams by a single polarization controller | Shuntaro Yamazaki | 1991-05-07 |
| 5007693 | Method for controlling polarizations of signal lights in an optical frequency division multiplex coherent communication system | Shuntaro Yamazaki, Haruhito Shimizu | 1991-04-16 |
| 5002009 | Furnace for formation of black oxide film on the surface of thin metal sheet and method for formation of black oxide film on the surface of shadow mask material by use of said furnace | Toshitomo Hayami, Humio Shibata, Katsumi Iguchi, Hisao Inoue, Takashi Ishimoto | 1991-03-26 |
| 4993390 | Injector positioning device | Hiroyuki Nishizawa, Akira Takahashi | 1991-02-19 |
| 4982265 | Semiconductor integrated circuit device and method of manufacturing the same | Masayuki Watanabe, Toshio Sugano, Seiichiro Tsukui, Yoshiaki Wakashima | 1991-01-01 |
| 4884239 | Method for erasing data in a semiconductor memory device | Shooji Kitazawa | 1989-11-28 |
| 4871999 | Fire alarm system, sensor and method | Hiromitsu Ishii | 1989-10-03 |
| 4859251 | Furnace for formation of black oxide film on the surface of thin metal sheet and method for formation of black oxide film on the surface of shadow mask material by use of said furnace | Toshitomo Hayami, Humio Shibata, Katsumi Iguchi, Hisao Inoue, Takashi Ishimoto | 1989-08-22 |
| 4838698 | Extinction type detector | Hiromitsu Ishii | 1989-06-13 |
| 4777083 | Carbon article comprising pieces of carbonaceous material bonded with one another and process for producing the same | Naohiro Murayama | 1988-10-11 |