Ukai; Ryuji
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ukai; Ryuji.The latest application filed is for "virtual image projection device".
- Ukai; Ryuji - Tokyo JP
| Patent | Date |
|---|---|
| Virtual image projection device Grant 11,442,353 - Mouri , et al. September 13, 2 | 2022-09-13 |
| Light-guiding plate, light-guiding plate manufacturing method, and video display device Grant 11,428,939 - Utsugi , et al. August 30, 2 | 2022-08-30 |
| Virtual Image Projection Device App 20210373424 - MOURI; Takahiro ; et al. | 2021-12-02 |
| Waveguide and video image display device Grant 11,143,872 - Ukai , et al. October 12, 2 | 2021-10-12 |
| Image display device and head mounted display using the same Grant 11,112,610 - Kuno , et al. September 7, 2 | 2021-09-07 |
| Video display apparatus and video display system Grant 11,106,040 - Ukai , et al. August 31, 2 | 2021-08-31 |
| Virtual Image Projection Device App 20210149183 - MURATA; Seiji ; et al. | 2021-05-20 |
| Light guide plate and image display apparatus Grant 10,976,554 - Kuno , et al. April 13, 2 | 2021-04-13 |
| Image Display Device And Head Mounted Display Using The Same App 20210063743 - KUNO; Takuma ; et al. | 2021-03-04 |
| Waveguide And Video Image Display Device App 20210041699 - UKAI; Ryuji ; et al. | 2021-02-11 |
| Head mounted display Grant 10,859,839 - Nakamura , et al. December 8, 2 | 2020-12-08 |
| Video display device Grant 10,839,732 - Ukai , et al. November 17, 2 | 2020-11-17 |
| Image display device Grant 10,771,772 - Ukai , et al. Sep | 2020-09-08 |
| Light-guiding Plate, Light-guiding Plate Manufacturing Method, And Video Display Device App 20200278546 - UTSUGI; Takeru ; et al. | 2020-09-03 |
| Light Guide Plate And Image Display Apparatus App 20200233217 - KUNO; Takuma ; et al. | 2020-07-23 |
| Video Display Device App 20200202759 - UKAI; Ryuji ; et al. | 2020-06-25 |
| Video Display Apparatus And Video Display System App 20200201049 - UKAI; Ryuji ; et al. | 2020-06-25 |
| Head Mounted Display App 20200201047 - NAKAMURA; Toshiteru ; et al. | 2020-06-25 |
| Soldering method Grant 10,645,818 - Kakuishi , et al. | 2020-05-05 |
| Soldering Method App 20190373741 - Kakuishi; Mamoru ; et al. | 2019-12-05 |
| Image display device Grant 10,401,631 - Ukai , et al. Sep | 2019-09-03 |
| Image display device having a light source and a control unit configured to control a driving current at first and second gradation values Grant 10,304,369 - Ukai , et al. | 2019-05-28 |
| Image Display Device App 20190068959 - UKAI; Ryuji ; et al. | 2019-02-28 |
| Illumination Device, Illumination Method, and Video Projection Apparatus Using the Same App 20180203338 - KAWAMURA; Tomoto ; et al. | 2018-07-19 |
| Image Display Device App 20170351099 - UKAI; Ryuji ; et al. | 2017-12-07 |
| Image Display Device App 20170287375 - UKAI; Ryuji ; et al. | 2017-10-05 |
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