Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8786965 | Die processing method, die, objective lens, and optical pick-up device | Kenichi Ishii | 2014-07-22 |
| 8665425 | Eccentricity measuring method | Kazuyuki Ogura, Masahiro Okitsu, Youichi Ogawa | 2014-03-04 |
| 8111602 | Objective lens, optical pickup device, and optical disk drive | Kiyono Tateyama, Kentarou Nakamura | 2012-02-07 |
| 7038852 | Polarization conversion optical system and polarization conversion element | Koji Takahara, Koujirou Sekine, Takuji Hatano | 2006-05-02 |
| 6922289 | Objective lens system for optical pickups | Junji Hashimura | 2005-07-26 |
| 6853760 | Optical functional device and optical integrated device | Koujirou Sekine, Mitsuru Yokoyama, Miyuki Teramoto, Takuji Hatano, Shinji Maruyama +1 more | 2005-02-08 |
| 6822796 | Diffractive optical element | Takuji Hatano, Koji Takahara, Koujirou Sekine | 2004-11-23 |
| 6791755 | Optical device for making light converge | Hiroshi Hatano | 2004-09-14 |
| 6785029 | Optical scanner | Takuji Hatano | 2004-08-31 |
| 6707588 | Photonic crystal device | — | 2004-03-16 |
| 6628443 | Optical scanner | Nozomu Inoue, Takeshi Sowa | 2003-09-30 |
| 6624951 | Objective lens system for optical pickups | Junji Hashimura, Hideki Nagata | 2003-09-23 |
| 6466708 | Optical module and manufacturing method thereof | Mitsuru Yokoyama, Takuji Hatano, Miyuki Teramoto, Koujirou Sekine | 2002-10-15 |
| 6445483 | Optical scanning apparatus | Nozomu Inoue, Takashi Hama, Yujiro Nomura | 2002-09-03 |
| 6326992 | Image forming apparatus | Nozomu Inoue, Hajime Kurihara, Yoshiro Koga | 2001-12-04 |
| 5883732 | Optical scanner | Nozomu Inoue, Takashi Hama, Yujiro Nomura | 1999-03-16 |
| 5877883 | Optical scanner | Nozomu Inoue, Takashi Hama, Yujiro Nomura | 1999-03-02 |
| 5870132 | Laser beam scanning image forming apparatus having two-dimensionally disposed light emitting portions | Nozomu Inoue, Hajime Kurihara, Yoshiro Koga | 1999-02-09 |
| 5781323 | Optical scanner | Nozomu Inoue, Takashi Hama, Yujiro Nomura | 1998-07-14 |
| 5771062 | Beam scanning apparatus, for providing tilt correction to a rotary optical device | Yujiro Nomura, Takashi Suzuki, Nozomu Inoue | 1998-06-23 |
| 5764397 | Optical scanner | Nozomu Inoue, Yujiro Nomura, Takashi Hama | 1998-06-09 |
| 5751463 | Optical scanner | Nozomu Inoue, Takashi Hama, Yujiro Nomura | 1998-05-12 |
| 5673136 | Optical scanner | Nozomu Inoue, Takashi Hama, Yujiro Nomura | 1997-09-30 |
| 5610647 | Image forming apparatus including a plural laser beam scanning apparatus | — | 1997-03-11 |
| 5600476 | Optical scanner | Nozomu Inoue, Takashi Hama, Yujiro Nomura | 1997-02-04 |