Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10775686 | Wavelength conversion element, light source apparatus and image projection apparatus | Minoru Ohkoba, Yuya Kurata | 2020-09-15 |
| 9915859 | Optical element, light source device using the same, and projection display apparatus | — | 2018-03-13 |
| 9851552 | Image display apparatus | — | 2017-12-26 |
| 9591279 | Light source unit, control method thereof, and projection-type display apparatus | — | 2017-03-07 |
| 7976166 | Optical system for image projection and image projection apparatus including a polarization beam splitting surface | Atsushi Okuyama, Yu Yamauchi, Takashi Sudo | 2011-07-12 |
| 7878659 | Illumination optical system and projection-type image display apparatus using the same | Yu Yamauchi | 2011-02-01 |