Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11454812 | Virtual image display device | — | 2022-09-27 |
| 11312301 | Display apparatus, display method, and program | — | 2022-04-26 |
| 11175498 | Virtual image display device, intermediate image formation unit, and image display light generation unit | — | 2021-11-16 |
| 11092804 | Virtual image display device | — | 2021-08-17 |
| 10473918 | Image drawing device and image drawing method that detects and controls laser light | Tatsuya Nakano | 2019-11-12 |
| 9761163 | Image display apparatus | Kazumi Iwata, Ryuichi Okazaki, Tatsuya Nakano | 2017-09-12 |
| 8094540 | Optical pickup and optical device | Takahiro Kaneko | 2012-01-10 |
| 8050167 | Optical device | — | 2011-11-01 |
| 7859976 | Optical pickup device | Takayoshi Hiraga, Takahiro Kaneko | 2010-12-28 |
| 7835251 | Optical device and optical pickup device | — | 2010-11-16 |
| 7567496 | Optical pickup device capable of loosening assembly accuracy | — | 2009-07-28 |
| 7348529 | Optical device and optical pickup device | — | 2008-03-25 |
| 7180845 | Optical pickup | — | 2007-02-20 |
| 6891675 | Optical device | — | 2005-05-10 |
| 6512608 | Optical device | — | 2003-01-28 |
| 6366548 | Optical pickup having two laser beam sources having wave lengths different from each other and optical device including the optical pickup | — | 2002-04-02 |
| 6320837 | Optical pickup and optical device | — | 2001-11-20 |
| 6207942 | Optical pickup device, error detection device, and detection method therefore | — | 2001-03-27 |
| 6122304 | Semiconductor laser and optical pickup with the same | — | 2000-09-19 |
| 5689108 | Integrated optical pick-up | — | 1997-11-18 |
| 5621715 | Optical integrated circuit | — | 1997-04-15 |
| 5322993 | Tilt-error detector | — | 1994-06-21 |
| 5180909 | Optical pickup using diffracted light | Tetsuhiro Yamazaki, Hiroshi Inoue, Toshio Konno | 1993-01-19 |