Issued Patents All Time
Showing 101–125 of 132 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5600494 | Objective lens system of an optical disk device | Wataru Kubo, Suguru Takishima | 1997-02-04 |
| 5559639 | Beam receiving position adjusting device | Toshio Nakagishi, Hitoshi Kimura, Masahiro Oono, Masato Noguchi | 1996-09-24 |
| 5519538 | Zoom lens for preventing image from being blurred | — | 1996-05-21 |
| 5500767 | Objective lens and method of measuring its performance | Syun'itirou Wakamiya, Makoto Iwaki, Masahiro Oono | 1996-03-19 |
| 5491587 | Collimating lens for optical system using semiconductor laser | Makoto Iwaki, Makoto Iki | 1996-02-13 |
| 5477386 | Optical system for optical disc apparatus including anamorphic prisms | Isao Okuda, Suguru Takishima, Masahiro Oono, Masato Noguchi | 1995-12-19 |
| 5471456 | Optical medium recording apparatus with a rotatable optical beam deflector | Haruki Tokumaru, Syunitirou Wakamiya | 1995-11-28 |
| 5461513 | Image stabilizing apparatus | — | 1995-10-24 |
| 5448412 | Telephoto zoom lens system | Jun Hirakawa | 1995-09-05 |
| 5434835 | Optical disk apparatus | Hisashi Konno, Suguru Takishima, Takashi Morita, Toshiyuki Kase, Masahiro Oono +2 more | 1995-07-18 |
| 5402269 | Compound prism | Masahiro Oono, Masato Noguchi, Makoto Iki, Hitoshi Kimura, Masahiko Sasaki | 1995-03-28 |
| 5373437 | Device for and method of reducing cross talk in optical disk device | Tsuyoshi Itoh, Isao Okuda, Hiroshi Nishikawa, Toshiyuki Kase, Ryota Ogawa +2 more | 1994-12-13 |
| 5343332 | Apparatus for adjusting optical axis including a beam shaping prism | Masahiro Oono, Makoto Iki, Hitoshi Kimura, Masahiko Sasaki | 1994-08-30 |
| 5341246 | Apparatus for adjusting an optical axis including plates on opposite sides of a beam shaping prism | Masahiro Oono, Makoto Iki, Hitoshi Kimura, Masahiko Sasaki | 1994-08-23 |
| 5321550 | Optical system of optical information recording/reproducing apparatus | Makoto Iwaki | 1994-06-14 |
| 5297114 | Magneto-optic recording/reproduction apparatus for minimizing variation in focusing error signals caused by variation in optical source wavelength | Tsuyoshi Itoh, Isao Okuda, Toshiyuki Kase, Hiroshi Nishikawa, Ryoto Ogawa +3 more | 1994-03-22 |
| 5280464 | Optical disk apparatus having a focusing error correcting system | Tsuyoshi Itoh, Isao Okuda, Toshiyuki Kase, Hiroshi Nishikawa, Ryota Ogawa +2 more | 1994-01-18 |
| 5280387 | Image stabilizing apparatus | — | 1994-01-18 |
| 5278401 | Optical disc apparatus having five light receiving areas for detecting focus error and tracking error | Suguru Takishima, Isao Okuda, Masahiro Oono, Masato Noguchi | 1994-01-11 |
| 5237457 | Apparatus for adjusting an optical axis including a laser beam source and a beam shaping prism | Masahiro Oono, Makoto Iki, Hitoshi Kimura, Masahiko Sasaki | 1993-08-17 |
| 5223983 | Compound prism including interfaces with curvatures of the order of a laser wave length | Masahiro Oono, Masato Noguchi, Makoto Iki, Hitoshi Kimura, Masahiko Sasaki | 1993-06-29 |
| 5214537 | Chromatic aberration correcting objective lens system for information recording/reproducing apparatus | — | 1993-05-25 |
| 5173809 | Objective lens system of optical information recording/reproducing apparatus | Makoto Iwaki | 1992-12-22 |
| 5121978 | Image blur compensating telephotographic lens | — | 1992-06-16 |
| 5087990 | Collimator lens of erasable and re-recordable magneto-optical disk system | — | 1992-02-11 |