Issued Patents All Time
Showing 51–75 of 87 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8023783 | Optical device, and virtual image display device | Katsuyuki Akutsu | 2011-09-20 |
| 7944616 | Head-mounted display | — | 2011-05-17 |
| 7936519 | Head mounted display | Akio Funanami, Teiyu Goto | 2011-05-03 |
| 7841745 | Image display apparatus | — | 2010-11-30 |
| 7747113 | Optical device and virtual image display device | Katsuyuki Akutsu | 2010-06-29 |
| 7699473 | Image display apparatus with relaying optical system, reflective optical component and phase difference optical component | Yasuyuki Sugano | 2010-04-20 |
| 7502168 | Optical device and image display apparatus | Katsuyuki Akutsu | 2009-03-10 |
| 7453612 | Optical device, and virtual image display | — | 2008-11-18 |
| 7418170 | Optical device and virtual image display device | Katsuyuki Akutsu | 2008-08-26 |
| 7286272 | Image display unit | — | 2007-10-23 |
| 7139109 | Transmission type laminated hologram optical element and image display device comprising this optical element | — | 2006-11-21 |
| 7042637 | Image display | Yoshinori Tanaka | 2006-05-09 |
| 6816290 | Image display element, and image display device | — | 2004-11-09 |
| 6561654 | Image display device | Yoshinori Tanaka | 2003-05-13 |
| 6331916 | Virtual image optical system | — | 2001-12-18 |
| 6252842 | Disc for recording information signals and disc chucking device | — | 2001-06-26 |
| 6137602 | Optical system for observation of virtual image | — | 2000-10-24 |
| 6038206 | Disc table for disc recording/reproducing apparatus and method for producing same | — | 2000-03-14 |
| 5883865 | Apparatus for recording and/or reproducing a recording medium with editing functions | Tsuyoshi Kondo | 1999-03-16 |
| 5862120 | Disc table for disc recording/reproducing apparatus and method for producing same | — | 1999-01-19 |
| 5859834 | Optical disc with magnetic member in a recessed portion thereof and method for producing said optical disc | Kenji Takahashi, Katsuaki Tsurushima, Tadao Yoshida, Kazuhiko Fujiie, Hirotoshi Fujisawa | 1999-01-12 |
| 5848031 | Apparatus for recording and/or reproducing a recording medium having automatic track numbering capability | Tsuyoshi Kondo | 1998-12-08 |
| 5818799 | Apparatus for recording and/or reproducing a recording medium having data control function | Tsuyoshi Kondo | 1998-10-06 |
| 5799006 | Disc table for disc recording/reproducing apparatus and method for producing same | — | 1998-08-25 |
| 5748576 | Apparatus for recording and/or reproducing a recording medium having data control function | Tsuyoshi Kondo | 1998-05-05 |