Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11852710 | Face-to-face state determination system | Nobuyuki Akazawa | 2023-12-26 |
| 10849047 | Beacon | Takeshi Ohyama, Shingo Fujishima | 2020-11-24 |
| 10444614 | Reflective screen | — | 2019-10-15 |
| 10248016 | Reflection type screen | — | 2019-04-02 |
| 10185215 | Reflection type screen | — | 2019-01-22 |
| 9188847 | Screen and screen manufacturing method | Haruhisa Muro, Masatoshi Niwa | 2015-11-17 |
| 7911695 | Reflex-type screen, screen apparatus, and sheet-like article | Tadao Matsuki, Shinya Ishida, Takahito Tanabe, Kiyoshi NUMATA | 2011-03-22 |
| 7633677 | Reflective screen | Masatoshi Niwa, Norimitsu Ebata, Yuji Sawamura, Ken Kikuchi, Tomoya Yano | 2009-12-15 |
| 7262911 | Reflex-type screen assembly | Masatoshi Niwa, Takahiro Koyanagi | 2007-08-28 |
| 7221508 | Reflex-type screen | Norimitsu Ebata, Yuji Sawamura, Masatoshi Niwa | 2007-05-22 |
| 7110176 | Reflex-type screen | Takahiro Koyanagi, Masatoshi Niwa | 2006-09-19 |
| 6233095 | Screen member for a reflex type screen | Masatoshi Niwa, Masaaki Kishimoto, Koji Nakamura, Koichi Wada | 2001-05-15 |
| 6052227 | Screen assembly with pivoting leg members | Masatoshi Niwa, Tomoshi Oozeki | 2000-04-18 |
| 6046845 | Screen assembly and reflex type screen assembly | Masatoshi Niwa, Tomoshi Oozeki | 2000-04-04 |
| 5863630 | Screen for a large size view field | Masatoshi Niwa | 1999-01-26 |
| 5768019 | Reflective screen for a liquid crystal projector and method for producing the same | Masatoshi Niwa, Yoshikazu Umezawa | 1998-06-16 |