Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871649 | Optical recording medium and optical recording method using the same | Mizuho Hiraoka, Sachiko Ichikawa, Yoshihiro Ogawa, Hitoshi Yoshino | 1989-10-03 |
| 4783141 | Array lens | Takeshi Baba, Masayuki Usui, Takashi Serizawa, Hiroyasu Nose | 1988-11-08 |
| 4783155 | Optical device with variably shaped optical surface and a method for varying the focal length | Takashi Serizawa, Masayuki Usui, Takeshi Baba, Hiroyasu Nose | 1988-11-08 |
| 4781445 | Optical device having positionally changeable optical surfaces and a method of varying an image forming position | Takeshi Baba, Takashi Serizawa, Masayuki Usui, Hiroyasu Nose | 1988-11-01 |
| 4714326 | Method and element for optical modulation | Masayuki Usui, Takashi Serizawa, Takeshi Baba, Hiroyasu Nose | 1987-12-22 |
| 4712882 | Variable focal length lens | Takeshi Baba, Masayuki Usui, Takashi Serizawa, Hiroyasu Nose | 1987-12-15 |
| 4682019 | Amorphous silicon photoelectric transducer with a photoconductive colorant layer | Hisashi Nakatsui, Yoshioki Hajimoto | 1987-07-21 |
| 4285575 | Image display device | Michiko Takahashi, Masatsune Kobayashi, Tokuya Ohta | 1981-08-25 |
| 4212518 | Image display device | Masatsune Kobayashi, Tokuya Ohta | 1980-07-15 |