Issued Patents All Time
Showing 26–50 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5838001 | Scanning optical device and polygon mirror cover | Tadashi Minakuchi, Mitsunori Iima, Hiroshi Kanazawa | 1998-11-17 |
| 5825555 | Beam projecting apparatus | Tunehiko Sonoda, Satoru Tachihara, Koichi Maruyama | 1998-10-20 |
| 5812299 | Scanning optical device | Tadashi Minakuchi, Mitsunori Iima, Hiroshi Kanazawa | 1998-09-22 |
| 5812727 | Holder for optical fibers in a scanning optical device | Hiroshi Kanazawa, Tadashi Minakuchi, Mitsunori Iima | 1998-09-22 |
| 5793735 | Wavefront aberration compensation in an optical data recording and reproducing apparatus with crystal liquid matrix | — | 1998-08-11 |
| 5768150 | Device and method for measuring a characteristic of an optical element | Tunehiko Sonoda, Masato Noguchi | 1998-06-16 |
| 5768036 | Beam receiving position adjusting device | Toshio Nakagishi, Hitoshi Kimura, Koichi Maruyama, Masato Noguchi | 1998-06-16 |
| 5760944 | Scanning optical device | Tadashi Minakuchi, Mitsunori Iima, Hiroshi Kanazawa | 1998-06-02 |
| 5687007 | Image reading device including prevention of thermally induced component dislocation | Yoshihiro Yamazaki | 1997-11-11 |
| 5629799 | Chromatic aberration correcting element and its application | Koichi Maruyama, Satoru Tachihara, Masato Noguchi, Tsuyoshi Ishikawa | 1997-05-13 |
| 5559639 | Beam receiving position adjusting device | Toshio Nakagishi, Hitoshi Kimura, Koichi Maruyama, Masato Noguchi | 1996-09-24 |
| 5557598 | Beam splitter inspection apparatus and method | Tsuyoshi Itoh | 1996-09-17 |
| 5553052 | Inclination of an objective lens in an optical information system | Hisashi Konno, Toshiyuki Kase, Katsuki Hayashi, Hiroshi Nishikawa | 1996-09-03 |
| 5500767 | Objective lens and method of measuring its performance | Koichi Maruyama, Syun'itirou Wakamiya, Makoto Iwaki | 1996-03-19 |
| 5477386 | Optical system for optical disc apparatus including anamorphic prisms | Isao Okuda, Suguru Takishima, Koichi Maruyama, Masato Noguchi | 1995-12-19 |
| 5434835 | Optical disk apparatus | Hisashi Konno, Suguru Takishima, Takashi Morita, Toshiyuki Kase, Koichi Maruyama +2 more | 1995-07-18 |
| 5432606 | Interferometer for the measurement of surface profile which introduces a spatial carrier by tilting the reference mirror | Masato Noguchi | 1995-07-11 |
| 5402269 | Compound prism | Koichi Maruyama, Masato Noguchi, Makoto Iki, Hitoshi Kimura, Masahiko Sasaki | 1995-03-28 |
| 5379105 | Roof surface measuring apparatus | Makoto Iki, Hirofumi Matsuo, Masato Noguchi | 1995-01-03 |
| 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 | Koichi Maruyama, 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 | Koichi Maruyama, Makoto Iki, Hitoshi Kimura, Masahiko Sasaki | 1994-08-23 |
| 5317144 | Wave front aberration measuring apparatus having means for adjusting position of collimator lens | Tsuyoshi Itoh, Katsuki Hayashi, Toshiyuki Kase, Masahiko Sasaki, Hiroshi Yamamoto +1 more | 1994-05-31 |
| 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 |