Issued Patents All Time
Showing 126–150 of 152 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4917480 | Eye refractive power measuring apparatus | Kiwami Horiguchi, Ikuo Kitao, Yoshihiro Takahashi | 1990-04-17 |
| 4879144 | Liquid crystal element | Yoshiyuki Nakura | 1989-11-07 |
| 4859051 | Eye testing apparatus | Yasufumi Fukuma, Ikuo Kitao | 1989-08-22 |
| 4848895 | Automatic eye refractive power measuring apparatus | Kiwami Horiguchi, Shinji Wada, Ikuo Kitao | 1989-07-18 |
| 4841556 | Plasma X-ray source | Isao Ochiai, Yoshio Watanabe, Seiichi Murayama | 1989-06-20 |
| 4744648 | Eye refractive power measuring apparatus | Yasufumi Fukuma, Kiwami Horiguchi, Kiichi Kamiyama | 1988-05-17 |
| 4715054 | Plasma x-ray source | Kunio Harada, Shigeo Kubota, Yoshio Watanabe, Seiichi Murayama | 1987-12-22 |
| 4712895 | Ocular position measuring apparatus | Kiichi Kamiyama | 1987-12-15 |
| 4697121 | Low-pressure mercury vapor discharge lamp | Tetsuo Ono, Yoshio Watanabe, Seiichi Murayama, Shigeo Mikoshiba, Hiromitsu Matsuno | 1987-09-29 |
| 4695383 | Permselective membrane | Shigeji Konagaya, Osamu Watanabe, Hideshi Kuzumoto, Masaya Tokai, Haruhiko Narusawa | 1987-09-22 |
| 4673724 | Polymeric whisker and production of the same | Seiji Endoh, Kunio Kimura, Toshihiko Ohta | 1987-06-16 |
| 4643623 | Holder for rotary cutting tools | Kunio Kondo, Katutoshi Haga, Tadashi Kurumiya, Minoru Haga, Shinobu Kaneko | 1987-02-17 |
| 4642005 | Holder for rotary cutting tools | Kunio Kondo, Katutoshi Haga, Minoru Haga, Shinobu Kaneko | 1987-02-10 |
| 4627086 | Plasma X-ray source | Yoshio Watanabe, Seiichi Murayama | 1986-12-02 |
| 4611148 | Low-pressure mercury vapor discharge lamp | Tetsuo Ono, Yoshio Watanabe, Seiichi Murayama, Shigeo Mikoshiba, Hiromitsu Matsuno | 1986-09-09 |
| 4589773 | Position detecting system | Satoshi Ido, Minpei Fujinami, Yoshio Sakitani, Susumu Ozasa | 1986-05-20 |
| 4587453 | Low-pressure mercury vapor discharge lamp | Tetsuo Ono, Yoshio Watanabe, Hiromitsu Matsuno, Seiichi Murayama, Shigeo Mikoshiba | 1986-05-06 |
| 4488808 | Print inspecting device | — | 1984-12-18 |
| 4453808 | Apparatus for detecting the position of a patient's eye in ophthalmologic instruments | Susumu Takahashi, Yoshinori Oana, Yoshiyuki Hatano | 1984-06-12 |
| 4437008 | Electron beam control system | Tadahito Matsuda, Masahide Okumura, Hisatake Yokouchi, Susumu Ozasa | 1984-03-13 |
| 4408847 | Refractory power measuring device | Shinji Wada, Yoshinori Oana, Ikuo Kitao, Taketoshi Ishihara | 1983-10-11 |
| 4336597 | Method and system for measuring the diameter of an electron beam | Tsuneo Okubo, Genya Matsuoka | 1982-06-22 |
| 4306778 | Eye refractmeters using infrared rays | Shinji Wada, Ikuo Kitao, Taketoshi Ishihara, Yuji Sugahara | 1981-12-22 |
| 4299455 | Vision testing instrument | Mitsugu Aoki, Yoshinori Oana, Taketoshi Ishihara | 1981-11-10 |
| 4293199 | Apparatus for detecting astigmatic axes and measuring refractive powers | Shinzi Wada, Ikuo Kitao, Yoshinori Oana, Taketoshi Ishihara | 1981-10-06 |