Issued Patents All Time
Showing 51–75 of 76 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9323032 | Variable magnification projection optical system and projection display apparatus | — | 2016-04-26 |
| 9164264 | Projection zoom lens and projection display apparatus | — | 2015-10-20 |
| 9122045 | Projection zoom lens and projection type display device | — | 2015-09-01 |
| 9036266 | Zoom lens for projection and projection-type display apparatus | — | 2015-05-19 |
| 8967812 | Projection optical system and projection display apparatus | — | 2015-03-03 |
| 8964301 | Zoom lens for projection and projection-type display apparatus | — | 2015-02-24 |
| 8922903 | Projection zoom lens and projection type display device | Akiko Nagahara | 2014-12-30 |
| 8922905 | Variable-magnification projection optical system and projection display device | — | 2014-12-30 |
| 8896929 | Projection zoom lens and projection type display device | Tomoyuki Baba, Akiko Nagahara | 2014-11-25 |
| 8820946 | Projection optical system and projection display apparatus | — | 2014-09-02 |
| 8699152 | Projection zoom lens and projection display apparatus | — | 2014-04-15 |
| 8508853 | Projection lens and projection-type display apparatus | — | 2013-08-13 |
| 8328369 | Projecting zoom lens and projection type display apparatus | — | 2012-12-11 |
| 8223435 | Zoom lens for projection and projection-type display device | — | 2012-07-17 |
| 8213095 | Projection lens and projection display device using the same | Kimiaki Nakazawa | 2012-07-03 |
| 8179606 | Zoom lens for projection and projection-type display device | — | 2012-05-15 |
| 8179607 | Projection zoom lens and projection-type display apparatus | — | 2012-05-15 |
| 8116010 | Projection variable focus lens and projection display device | — | 2012-02-14 |
| 7990621 | Projection lens and projection display device using the same | — | 2011-08-02 |
| 7967585 | Method for manufacturing trochoid pump and trochoid pump obtained | Kenichi Fujiki, Keiichi Kai, Takatoshi Watanabe | 2011-06-28 |
| 7880973 | Projection lens and projection display device using the same | — | 2011-02-01 |
| 7773309 | Projection zoom lens device and projection-type display apparatus | — | 2010-08-10 |
| 7715111 | Projection zoom lens system and projection type display apparatus | Chikara Yamamoto | 2010-05-11 |
| 7625192 | Internal gear pump including a crescent | Masamitsu Saito, Takatoshi Watanabe | 2009-12-01 |
| 7384251 | Trochoidal oil pump | Kenichi Fujiki | 2008-06-10 |