Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12360293 | Micro-lens array, projection type image display device, method for designing micro-lens array, and method for manufacturing micro-lens array | Kazuyuki Shibuya, Shunsuke Kanasugi, Naoki Hanashima | 2025-07-15 |
| 12235471 | Optical body, lighting device, and image display device | Kazuki Hoshi | 2025-02-25 |
| 11960103 | Micro-lens array, projection type image display device, method for designing micro-lens array, and method for manufacturing micro-lens array | Kazuyuki Shibuya, Shunsuke Kanasugi, Naoki Hanashima | 2024-04-16 |
| 11726237 | Light diffuser plate, image display device, and lighting device | Masayuki Ishiwata | 2023-08-15 |
| 11531144 | Optical body, diffuser plate, display device, projection device, and lighting device | Masayuki Ishiwata, Tsutomu Nagahama | 2022-12-20 |
| 11002889 | Reflective diffuser plate, display device, projection device, and lighting device | Tsutomu Nagahama | 2021-05-11 |
| 10859735 | Diffuser plate, display device, projection device, and lighting device | Masayuki Ishiwata, Tsutomu Nagahama | 2020-12-08 |
| 10858883 | Optical body, window material, and roll screen | Atsushi Shibuya, Tsutomu Nagahama | 2020-12-08 |
| 10139524 | Anti-reflective structure and method for designing same | Yutaka Wada | 2018-11-27 |
| 9618657 | Optical element, display device, and input device | Tomoo Fukuda, Sung-kil Lee, Fumihiko Iida, Hiroyuki Kiso, Yu Nomura | 2017-04-11 |
| 8998429 | Printed material and photographic material | Tomoo Fukuda, Sung-kil Lee, Yu Nomura, Hiroyuki Kiso, Fumihiko Iida | 2015-04-07 |
| 8237886 | Optical sheet, method of manufacturing the same, and display apparatus | Kei Obata, Jun Shimizu, Kentaro Okuyama, Mitsunari Hoshi | 2012-08-07 |
| 7719631 | Optical sheet, backlight and liquid crystal display apparatus | Jun Shimizu, Hirokazu Odagiri, Eiji Ohta, Kei Obata | 2010-05-18 |
| 7695167 | Optical sheet, backlight and liquid crystal display apparatus | Jun Shimizu, Hirokazu Odagiri, Eiji Ohta, Kei Obata | 2010-04-13 |
| 7545460 | Liquid crystal display, optical sheet manufacturing method, and optical sheet | Jun Shimizu, Kei Obata, Eiji Oota, Toru Abiko, Yasuyuki Kudo +2 more | 2009-06-09 |
| 7502308 | Optical recording medium | Hiroshi Nakayama, Atsushi Takeuchi | 2009-03-10 |
| 7483094 | Optical sheet, backlight and liquid crystal display apparatus | Jun Shimizu, Hirokazu Odagiri, Eiji Ohta, Kei Obata | 2009-01-27 |
| 7294281 | Optical information recording medium, original disc for optical information recording medium, and method of manufacturing the same | Hiroyuki Takemoto, Tadao Suzuki, Yoshihito Fukushima, Hiroshi Nakayama, Atsushi Takeuchi | 2007-11-13 |
| 6986152 | Optical information recording medium | Hiroyuki Takemoto, Tadao Suzuki, Yoshihito Fukushima, Hiroshi Nakayama, Atsushi Takeuchi | 2006-01-10 |
| 6654337 | Magneto-optical recording medium having pit pitch greater than groove pitch | Sohmei Endoh, Manabu Satoh, Jun Shimizu, Etsuro Ikeda, Hirotaka Ozawa +2 more | 2003-11-25 |
| 6349085 | High density recording medium with pit width to track pitch ratio in the range of 0.4 to 0.55 for push-pull tracking servo control | Sohmei Endoh, Katsuhiko Ohtomo | 2002-02-19 |
| 6208611 | Light exposure apparatus for master optical disc | — | 2001-03-27 |
| 5227918 | Wide field eyepiece lens system | Toshinobu Suzuki, Takaaki Tanaka | 1993-07-13 |