Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9158042 | Fresnel lens sheet for solar concentration and design method therefor | Makoto Toyohara, Youji Ono | 2015-10-13 |
| 7919021 | Method for producing optical sheet | Kazuo Baba, Kazunori Hirose, Yoshihiro Oda, Etsuo Nakazato | 2011-04-05 |
| 7440049 | Backlight device for liquid crystal display | Toshiyuki Yoshikawa, Yoshiki Mukoo | 2008-10-21 |
| 7136224 | Rear projection screen with shifted lens | Yoshihiro Kumagai | 2006-11-14 |
| 7061676 | Rear projection screen and rear projection display apparatus | Yoshihiro Kumagai | 2006-06-13 |
| 7050229 | Method for manufacturing rear-projection type screen having sheets with protrusions integrally formed thereon | Tokuo Ikari | 2006-05-23 |
| 6618196 | Rear-projection type screen | Tokuo Ikari | 2003-09-09 |
| 6462870 | Rear projection image display apparatus including light exit surface configured to reduce noise | Kazuo Funazaki | 2002-10-08 |
| 6400505 | Rear projection image display apparatus including light exit surface configured to reduce noise | Kazuo Funazaki | 2002-06-04 |
| 6282034 | Optical device and Fresnel lens sheet | Ikuo Onishi, Yoshihiro Kumagai | 2001-08-28 |
| 6101031 | Lenticular lens sheet capable of reducing color shift and improving overall light team transmittance | Osamu Yoshimura, Hidehiro Tango | 2000-08-08 |
| 5959701 | Projection type display device | Toru Watanabe | 1999-09-28 |
| 5751478 | Rear-projection screen | Osamu Yoshimura | 1998-05-12 |
| 5724188 | Lenticular lens sheet | Yoshihiro Kumagai | 1998-03-03 |
| 5687024 | Lenticular lens sheet | Osamu Yoshimura | 1997-11-11 |
| 5675435 | Rear projection image display device | Masaki Ishii, Toru Watanabe | 1997-10-07 |
| 5661600 | Transmission type screen and method of manufacturing thereof | Katsuaki Mitani, Noboru Yasumatsuya, Hiroshi Kuwada | 1997-08-26 |
| 5457572 | Rear-projection screen | Masaki Ishii, Hidehiro Tango | 1995-10-10 |
| 5434706 | Transmission type screen and method of manufacturing thereof | Katsuaki Mitani, Noboru Yasumatsuya, Hiroshi Kuwada | 1995-07-18 |
| 5432636 | Rear-projection screen | Masaki Ishii, Yoshihiro Kumagai, Osamu Yoshimura, Shinichi Asano, Takao Kibushi | 1995-07-11 |
| 5196960 | Lenticular lens sheet | Hiroshi Kuwada, Masao Otaki, Ken-ichi Abe | 1993-03-23 |
| 4842969 | Transmittance modulation photomask, process for producing the same, and process for producing diffraction gratings using the same | Nobuhiro Kawatsuki, Katsuya Fujisawa, Masao Uetsuki | 1989-06-27 |