Issued Patents All Time
Showing 101–125 of 144 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4679913 | Vari-focal objective lens of short total length | Yasuhisa Sato, Hiroki Nakayama, Kouji Oizumu | 1987-07-14 |
| 4664979 | Magnetic recording medium | Yoshito Mukaida | 1987-05-12 |
| 4659186 | Small size zoom lens | Yasuhisa Sato, Hiroki Nakayama | 1987-04-21 |
| 4652091 | Compact zoom lens with short back focal distance | Kouji Oizumi, Yasuhisa Sato, Hiroki Nakayama | 1987-03-24 |
| 4643536 | Rear conversion lens | Yasuhisa Sato, Hiroki Nakayama, Kouji Oizumi | 1987-02-17 |
| 4640445 | Portable and wearable injector of mini size | — | 1987-02-03 |
| 4596447 | Conversion type varifocal lens system | Yasuhisa Sato, Hideo Yokota | 1986-06-24 |
| 4595270 | Finder system | Kazuo Fujibayashi, Yasuhisa Sato, Hideo Yokota | 1986-06-17 |
| 4588656 | Method of preparing a magnetic recording medium | Tatsuji Kitamoto, Ryuji Shirahata, Goro Akashi | 1986-05-13 |
| 4582409 | Albada finder with display within the field of view | Yasuhisa Sato, Hiroki Nakayama, Hideo Yokota | 1986-04-15 |
| 4571364 | Magnetic recording medium | Akira Kasuga, Akihiro Matsufuji, Nobuo Tsuji | 1986-02-18 |
| 4555355 | Composition for liquid crystal color display | Tadaaki Tanaka, Ryoichi Tukahara, Tsutomu Nishizawa | 1985-11-26 |
| 4552684 | Dichroic dye and liquid crystalline composition for color display | Tsutomu Nishizawa, Tamio Mikoda, Tooru Miyahara, Masaharu Kikutsugi | 1985-11-12 |
| 4552807 | Magnetic recording medium | Takahito Miyoshi, Toshimitsu Okutsu, Masaaki Fujiyama | 1985-11-12 |
| 4536474 | Tissue culture of lichens | Yoshikazu Yamamoto, Ryuzo Mizuguchi | 1985-08-20 |
| 4530583 | Display device for view finder | — | 1985-07-23 |
| 4511232 | Auto-focus camera | — | 1985-04-16 |
| 4503120 | Magnetic recording medium | Koichi Yamauchi, Nobuo Tsuji, Shinichi Funabashi, Masatoshi Kiyama | 1985-03-05 |
| 4503119 | Magnetic recording media | Ryuji Shirahata, Tatsuji Kitamoto, Goro Akashi | 1985-03-05 |
| 4477155 | Photographic lens of the partial focusing type | Yasuhisa Sato, Hideo Yokota | 1984-10-16 |
| 4458991 | Photographic objective of reduced size | — | 1984-07-10 |
| 4459218 | Composition for liquid crystal color display | Tadaaki Tanaka, Ryoichi Tukahara, Tsutomu Nishizawa | 1984-07-10 |
| 4448843 | Magnetic recording medium | Ryuji Shirahata, Akio Yanai, Tatsuji Kitamoto | 1984-05-15 |
| 4444838 | Magnetic recording medium | Goro Akashi, Nobuo Tsuji, Yoshito Mukaida | 1984-04-24 |
| 4439486 | Magnetic recording medium | Masaaki Fujiyama, Nobuo Tsuji | 1984-03-27 |