Issued Patents 2017
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9804390 | Virtual image observation optical system and light guide prism | Ryohei Sugihara, Yoichi Iba | 2017-10-31 |
| 9789681 | Screen printing apparatus including scraper with curved portion having opening | — | 2017-10-17 |
| 9726892 | Light guide prism and image display apparatus | Ryohei Sugihara | 2017-08-08 |
| 9690102 | Light-guiding prism and image display apparatus | Ryohei Sugihara | 2017-06-27 |