Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10634825 | Light-blocking material for optical devices, and production method therefor | Tsuyoshi Nagahama | 2020-04-28 |
| 9405042 | Light-shielding material for optical instrument and manufacturing method thereof | — | 2016-08-02 |
| 9383484 | Light-shielding material for optical instrument | — | 2016-07-05 |
| 8419259 | Backlight unit | Hiroshi Yokota | 2013-04-16 |
| 8059339 | Light diffusing sheet with binder of mixed acrylic and styrene-acrylic resins | — | 2011-11-15 |
| 7771828 | Binder composition applied for polyester type films and optical film using the same | — | 2010-08-10 |
| 7535642 | Light control sheet and surface light source using the same | Susumu Kurishima | 2009-05-19 |
| 7156547 | Light diffusive sheet and area light source element using the same | Masashi Takai, Hideharu Nagami | 2007-01-02 |
| 6592950 | Anti-Newton ring film | Takaaki Kato | 2003-07-15 |
| 5903391 | Optical film | Takaaki Kato | 1999-05-11 |
| 5852514 | Light diffusion composite | Takaaki Kato | 1998-12-22 |
| 5831774 | Light diffusion composite | Takaaki Kato | 1998-11-03 |