Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11269117 | Projection display apparatus | — | 2022-03-08 |
| 10775684 | Optical unit and projector therewith | Yasumasa Sawai, Masahiro Terada, Sadanobu Imamura | 2020-09-15 |
| 10663840 | Projection-type display device | — | 2020-05-26 |
| 10578845 | Illumination optical system and projector | Yasumasa Sawai | 2020-03-03 |
| 10324362 | Optical unit and projector therewith | Yasumasa Sawai, Masahiro Terada, Sadanobu Imamura | 2019-06-18 |
| 10215891 | Projection display apparatus and method of producing said apparatus | — | 2019-02-26 |
| 8873157 | Inner-focus zoom lens system | — | 2014-10-28 |
| 8836822 | Temperature-compensated zoom lens system | — | 2014-09-16 |
| 8696133 | Projection optical system and image projecting device | Kohtaro Hayashi, Jun Ishihara, Yasumasa Sawai | 2014-04-15 |
| 8425044 | Projection optical system | Keiko Yamada, Soh Ohzawa, Kohtaro Hayashi | 2013-04-23 |
| 8345357 | Optical system, image projection apparatus including the same and an image pickup device | — | 2013-01-01 |
| 8113667 | Projection optical system | Keiko Yamada, Kohtaro Hayashi, Soh Ohzawa | 2012-02-14 |
| 8052283 | Oblique projection optical system | Keiko Yamada | 2011-11-08 |
| 8009365 | Projection optical system | — | 2011-08-30 |
| 7950806 | Rear projector | Jun Ishihara | 2011-05-31 |
| 7880972 | Projection optical system | Tomokazu Masubuchi, Jun Ishihara | 2011-02-01 |
| 7854515 | Projection type image display apparatus | Atsushi Matsuura, Kohtaro Hayashi, Jun Ishihara | 2010-12-21 |
| 7748855 | Image projection apparatus | — | 2010-07-06 |
| 7524068 | Projection optical system | Kohtaro Hayashi, Yuichi Atarashi, Hiroshi Kibayashi | 2009-04-28 |
| 7503661 | Projection optical system | Tomokazu Masubuchi, Jun Ishihara | 2009-03-17 |
| 7411737 | Projection optical system | Tomokazu Masubuchi, Jun Ishihara, Tomiei Kuwa | 2008-08-12 |