Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9612516 | Projection type image display apparatus | Norio Maeda, Kazuhiko Inoue, Masahiro Terada, Takashi Ohta, Yasumasa Sawai | 2017-04-04 |
| 9010944 | Projection type image display apparatus | Norio Maeda, Kazuhiko Inoue, Masahiro Terada, Takashi Ohta, Yasumasa Sawai | 2015-04-21 |
| 8699139 | Variable-focal-length projection lens system and projection apparatus | Katsuhiro Takamoto, Kazuhiko Inoue, Sadanobu Imamura | 2014-04-15 |
| 7612951 | Projection lens unit | Atsuo Masui, Tokuji Matsuda | 2009-11-03 |
| 7360906 | Projection optical system unit and projection-type image display apparatus using the same | Satoshi Onishi, Atsushi Matsuura | 2008-04-22 |