Issued Patents All Time
Showing 1–25 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12271050 | Projection lens | Hironobu Kayano, Hitoshi Shimizu, Tetsuo Kamigaki | 2025-04-08 |
| 12025907 | Projection lens and projection device | Tetsuo Kamigaki, Hitoshi Shimizu, Hironobu Kayano | 2024-07-02 |
| 11698576 | Projection device having rotation lock mechanism and projection lens having rotation lock mechanism | Hitoshi Shimizu, Yasuyuki Miyata | 2023-07-11 |
| 11669007 | Projection lens and projector | — | 2023-06-06 |
| 11592731 | Projection lens and projection device | Tetsuo Kamigaki, Hitoshi Shimizu, Hironobu Kayano | 2023-02-28 |
| 11520224 | Projection lens and projection device | Tetsuo Kamigaki, Hitoshi Shimizu, Hironobu Kayano | 2022-12-06 |
| 11480856 | Projection lens | Tetsuo Kamigaki, Hitoshi Shimizu, Hironobu Kayano | 2022-10-25 |
| 11448951 | Projection lens and projector | — | 2022-09-20 |
| 11392015 | Projection lens and projection device | Tetsuo Kamigaki, Hitoshi Shimizu, Hironobu Kayano | 2022-07-19 |
| 11199694 | Projection apparatus | — | 2021-12-14 |
| D896875 | Projector | — | 2020-09-22 |
| 10719003 | Projection lens and projector | — | 2020-07-21 |
| 10642135 | Projector | — | 2020-05-05 |
| 10488747 | Projection lens and projector | — | 2019-11-26 |
| 10423058 | Projection lens and projector | — | 2019-09-24 |
| 10409145 | Projector | — | 2019-09-10 |
| D857783 | Projector lens unit for a projector | — | 2019-08-27 |
| D848518 | Projector lens unit for a projector | — | 2019-05-14 |
| D845375 | Projector | — | 2019-04-09 |
| 10234751 | Projector, and image deterioration prevention method | — | 2019-03-19 |
| 10168609 | Projection lens and projector | — | 2019-01-01 |
| 9936174 | Projector and method of preventing image deterioration thereof | — | 2018-04-03 |
| 9904156 | Projector using an image forming panel | — | 2018-02-27 |
| 9841578 | Projector | — | 2017-12-12 |
| 8508677 | Reflective liquid crystal projector | — | 2013-08-13 |