Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7538313 | Optical encoder having a no track portion of an optical scale being placed at a position symmetrical to a light non-transparent portion within an irradiation region of incident light | Toru Oka, Yoichi Ohmura, Masahiko Sakamoto, Toshikazu Kitagaki | 2009-05-26 |
| 7470892 | Optical encoder | Yoichi Ohmura, Toru Oka | 2008-12-30 |
| 7285769 | Optical encoder with reduced reflected light error having a light non-transparent portion with inclined surfaces | Toru Oka, Yoichi Ohmura, Masahiko Sakamoto, Toshikazu Kitagaki | 2007-10-23 |
| 6972402 | Photoelectric rotary encoder | Yoichi Ohmura, Toru Oka, Toshiro Nakashima, Hirokazu Sakuma, Takashi Okamuro +2 more | 2005-12-06 |
| 6972834 | Optical distance sensor | Toru Oka, Masahiro Shikai, Akihide Shiratsuki, Jurgen Mohr, Ulrike Wallrabe +1 more | 2005-12-06 |
| 6956200 | Phase-shift photoelectric encoder | Yoichi Ohmura, Toru Oka, Hirokazu Sakuma, Takashi Okamuro | 2005-10-18 |
| 6846116 | Sensor head | Toru Oka, Masahiro Shikai, Akihide Shiratsuki, Jurgen Mohr, Ulrike Wallrabe +1 more | 2005-01-25 |
| 6657185 | Pattern detector for capturing images with reduced distortion | Akihide Shiratsuki, Masahiro Shikai | 2003-12-02 |
| 6631788 | Elevator system with safety installation | Masahiro Shikai, Toshiro Nakashima, Kazuo Takashima, Tatsushi Takahashi, Shigeki Yamakawa +4 more | 2003-10-14 |
| 6351312 | Interference-type distance measuring device | Hirokazu Sakuma, Takashi Okamuro, Yoshimitsu Sato, Toshiro Nakashima | 2002-02-26 |
| 6341043 | Optical axis conversion lens | Patrick Ruther | 2002-01-22 |
| 6198862 | Optical position detector | Patrick Ruther | 2001-03-06 |
| 6095514 | Sheet supplying apparatus and recording or reading apparatus | Tomohiro Kudo | 2000-08-01 |
| 6054938 | Optical encoder | Masahiro Shikai, Toru Oka, Toshiro Nakashima, Kazuo Takashima | 2000-04-25 |
| 6010125 | Sheet supplying apparatus and recording apparatus or reading apparatus using the same | — | 2000-01-04 |
| 5949470 | Roller unit and imaging apparatus using the same | Keiji Ohkoda | 1999-09-07 |
| 5729816 | Sheet convey apparatus | Kazuhiro Matsumoto, Kenichi Suzuki | 1998-03-17 |
| 5428217 | Annular photodiode for use in an optical rotary encoder | Masahiro Shikai | 1995-06-27 |
| 5426296 | Irregular pattern input device comprising an optical fiber bundle | Masahiro Shikai, Kazuo Takashima | 1995-06-20 |
| 5305294 | Magneto-optical recording/reproducing system having an electromagnetic actuator | Kenjiro Kime, Keiji Nakamura, Isao Watanabe | 1994-04-19 |
| 5281806 | Optical writing type liquid crystal light valve and writing apparatus therefor | Kazuro Nishi, Masaya Mizunuma, Tatsuo Masumi, Shigeyuki Kaho, Tsuyoshi Horikawa +1 more | 1994-01-25 |
| 5264941 | Large screen display apparatus utilizing a transparent plate to display an image over an entire surface of a diffusing surface | Masaaki Nakano, Naoki Shiramatsu, Shuji Iwata | 1993-11-23 |
| 5247493 | Magneto-optical recording and reproducing disk device having a bimorph type actuator with specific structures for mounting a magnetic head in opposing to the surface of the disk | Kenjiro Kime, Keiji Nakamura, Isao Watanabe | 1993-09-21 |
| 5231282 | Optical writing type liquid crystal light valve and writing apparatus therefor | Kazuro Nishi, Masaya Mizunuma, Tatsuo Masumi, Shigeyuki Kaho, Tsuyoshi Horikawa +1 more | 1993-07-27 |
| 5150556 | Chord truss roof structure | Toshiyuki Yamada, Yoshihiro Takahama, Kazushige Kurihara | 1992-09-29 |