Issued Patents All Time
Showing 26–50 of 147 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10890833 | Projection-type image apparatus | Koji Hirata, Yuki Matsumiya, Masanori Takaji | 2021-01-12 |
| 10890763 | Information display apparatus | Koji Hirata, Toshinori Sugiyama, Akio MISAWA, Shigeki Hoshino, Kazuomi Kaneko +4 more | 2021-01-12 |
| 10852539 | Projection optical system, head-up display device, and vehicle | Koji Hirata, Shigeki Hoshino | 2020-12-01 |
| 10814723 | Projection optical system, and head-up display device | Koji Hirata, Shigeki Hoshino | 2020-10-27 |
| 10788665 | Projection optical system and head-up display device | Kazuomi Kaneko, Shigeki Hoshino | 2020-09-29 |
| 10746904 | Free-form surface lens, method of designing free-form surface lens, free-form surface mirror, method of designing free-form surface mirror, and projection type video display apparatus | Koji Hirata, Yuki Matsumiya, Shuji Kato, Kayono Kimura | 2020-08-18 |
| 10705333 | Projection optical system and head-up display apparatus using the same | Akio MISAWA, Yuki Nagano | 2020-07-07 |
| 10690911 | Projection optical system and head-up display device | Koji Hirata, Kazuomi Kaneko | 2020-06-23 |
| 10678017 | Projection image display device | Koji Hirata, Shuji Kato, Yuki Matsumiya, Kayono Kimura | 2020-06-09 |
| 10670864 | Information display device | Koji Hirata, Toshinori Sugiyama, Hiroyuki Kajikawa, Kazuomi Kaneko | 2020-06-02 |
| 10606161 | Projection video display apparatus | Koji Hirata, Kazuya Ozawa | 2020-03-31 |
| 10545334 | Flare-cut member, lens device, and optical device | Shuji Kato | 2020-01-28 |
| 10444606 | Projection lens assembly method and projection image display apparatus | Koji Hirata, Yuki Matsumiya, Shuji Kato | 2019-10-15 |
| 10310257 | Head-up display device | Koji Hirata, Akio MISAWA | 2019-06-04 |
| 10309602 | Vehicular lighting apparatus | Koji Hirata, Hiroyuki Kajikawa, Hiroyuki Nakamura | 2019-06-04 |
| 10265831 | Method for manufacturing lens, method for manufacturing molding die for lens, method for manufacturing mirror, method for manufacturing molding die for mirror, lens and molding die for lens | Koji Hirata, Shuji Kato, Yuki Matsumiya | 2019-04-23 |
| 10214141 | Headlight device and vehicle device using same | — | 2019-02-26 |
| 10185060 | Free-form surface lens, method of designing free-form surface lens, free-form surface mirror, method of designing free-form surface mirror, and projection type video display apparatus | Koji Hirata, Yuki Matsumiya, Shuji Kato, Kayono Kimura | 2019-01-22 |
| 10100995 | Vehicular lighting apparatus | Koji Hirata, Hiroyuki Kajikawa, Hiroyuki Nakamura | 2018-10-16 |
| 10066802 | Vehicular lighting apparatus | Koji Hirata, Hiroyuki Kajikawa, Hiroyuki Nakamura | 2018-09-04 |
| 9581795 | Projection-type video display device | — | 2017-02-28 |
| 9429832 | Oblique projection optical system and projection type display apparatus using the same | Koji Hirata, Naoyuki Ogura | 2016-08-30 |
| 9372387 | Laser projector | Yoshiho Seo, Tomoki Kobori, Satoshi Ouchi, Koji Hirata, Junichi Yokoyama +3 more | 2016-06-21 |
| 9348210 | Projection apparatus and transparent screen for it | Koji Hirata, Hidehiro Ikeda | 2016-05-24 |
| 9116349 | Image display device | Koji Hirata | 2015-08-25 |