Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11620937 | Light source device and light emission control method | Takayuki Sasaoka, Katsutoshi Sasaki, Taehong Min | 2023-04-04 |
| 11137597 | Image display apparatus | Takayuki Sasaoka, Katsutoshi Sasaki | 2021-10-05 |
| 11036073 | Optical member, polarization member, and display device | Tomomichi Kanda, Yoshihiro Yokote, Katsutoshi Sasaki | 2021-06-15 |
| 10175522 | Optical deflection diffusion sheet, laminated optical deflection diffusion sheet, laminated optical sheet, and liquid crystal display device using same | — | 2019-01-08 |
| 7448774 | Illumination optical system, illumination unit and image projection apparatus employing the same | — | 2008-11-11 |
| 5621424 | Head mount display apparatus allowing easy switching operation from electronic image to external field image | Naoto Shimada, Toshiro Okamura, Seiichiro Tabata, Satoshi Imai, Koh Mohri +1 more | 1997-04-15 |
| 5596433 | Head-mounted image display apparatus having a prism with an aspherical surface | — | 1997-01-21 |
| 5546227 | Image display apparatus | Masato Yasugaki, Yoichi Iba | 1996-08-13 |
| 5479224 | Image display apparatus | Masato Yasugaki, Kumi Kikuchi | 1995-12-26 |