Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11453377 | Braking force control apparatus | Shun Sato, Hiroya Fujiwara, Masahiro Nishiu | 2022-09-27 |
| 10890833 | Projection-type image apparatus | Koji Hirata, Masahiko Yatsu, Masanori Takaji | 2021-01-12 |
| 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, Masahiko Yatsu, Shuji Kato, Kayono Kimura | 2020-08-18 |
| 10678017 | Projection image display device | Koji Hirata, Masahiko Yatsu, Shuji Kato, Kayono Kimura | 2020-06-09 |
| 10444606 | Projection lens assembly method and projection image display apparatus | Koji Hirata, Masahiko Yatsu, Shuji Kato | 2019-10-15 |
| 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, Masahiko Yatsu, Shuji Kato | 2019-04-23 |
| 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, Masahiko Yatsu, Shuji Kato, Kayono Kimura | 2019-01-22 |