Issued Patents All Time
Showing 1–25 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6351333 | Optical element and optical system having the same | Keisuke Araki, Tsunefumi Tanaka, Kenichi Kimura, Norihiro Nanba, Hiroshi Saruwatari +2 more | 2002-02-26 |
| 6188521 | Image displaying apparatus having magnification-changing system | Tsunefumi Tanaka, Hideki Morishima, Norihiro Nanba, Takeshi Akiyama | 2001-02-13 |
| 5757423 | Image taking apparatus | Tsunefumi Tanaka, Kenichi Shinbori, Shigeo Ogura, Makoto Sekita, Nobuhiro Takeda +5 more | 1998-05-26 |
| 5572372 | Optical apparatus provided with a driving unit for moving a lens | Masayoshi Sekine, Junichi Murakami, Shigeru Ogino, Hiroyuki Takahara, Masamichi Toyama +2 more | 1996-11-05 |
| 5461500 | Polarization converting apparatus and optical instrument having the same | Hidetoshi Suzuki, Hideaki Mitsutake, Katsumi Kurematsu, Noritaka Mochizuki, Nobuo Minoura +3 more | 1995-10-24 |
| 5289318 | Optical apparatus provided with a driving unit for moving a lens | Masayoshi Sekine, Junichi Murakami, Shigeru Ogino, Hiroyuki Takahara, Masamichi Toyama +2 more | 1994-02-22 |
| 5243462 | Image stabilizing apparatus | Takashi Kobayashi, Shigeru Ogino, Kazuhiro Noguchi, Hirokazu Mogi, Hiroyuki Hamano +1 more | 1993-09-07 |
| 5087935 | Active external distance measuring system having an optical device in the light projection and light receiving paths to reduce parallax | Naoya Kaneda, Youichi Iwasaki | 1992-02-11 |
| 5040881 | Image stabilization lens system | — | 1991-08-20 |
| 4998809 | Image-stabilizing optical device | Hiroyuki Hamano, Hirokazu Mogi, Shigeru Ogino, Kazuhiro Noguchi, Takashi Kobayashi | 1991-03-12 |
| 4974009 | Focus detecting device and photographing apparatus provided with the same | — | 1990-11-27 |
| 4963005 | Zoom lens having built-in diaphragm | — | 1990-10-16 |
| 4929068 | Conversion lens | — | 1990-05-29 |
| 4854679 | Photographic system having front conversion lens | — | 1989-08-08 |
| 4854681 | Compact zoom lens | Masatake Kato, Muneharu Sugiura, Kazuo Tanaka | 1989-08-08 |
| 4807982 | Lens system of variable magnification range and having a supplementary lens unit | — | 1989-02-28 |
| 4797700 | Diaphragm device | Hiroyoshi Inaba | 1989-01-10 |
| 4786150 | Zoom lens with beam splitter | — | 1988-11-22 |
| 4763998 | Compact zoom lens | Muneharu Sugiura, Kazuo Tanaka, Masatake Kato | 1988-08-16 |
| 4749266 | Compact zoom lens having a large aperture and good aberation correction over an extended zooming range | Sadatoshi Takahashi | 1988-06-07 |
| 4720180 | High magnification range zoom lens | Toshiaki Asano, Sadatoshi Takahashi | 1988-01-19 |
| 4712883 | Rear focus zoom lens | Masatake Kato, Toshiaki Asano | 1987-12-15 |
| 4708444 | Photographic objective | — | 1987-11-24 |
| 4696553 | Zoom lens having a large zoom ratio | Sadatoshi Takahashi, Kazuo Fujibayashi | 1987-09-29 |
| 4687303 | Zoom lens system | Sadatoshi Takahashi, Masatake Kato | 1987-08-18 |