Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7736045 | Area light source and lightguide used therefore | Tomoyoshi Yamashita | 2010-06-15 |
| 7520652 | Area light source | Tomoyoshi Yamashita | 2009-04-21 |
| 7380969 | Planar light source system and light deflecting device therefor | Tomoyoshi Yamashita, Issei Chiba | 2008-06-03 |
| 7226197 | Surface light source device and light guide used therefor | Tomoyoshi Yamashita | 2007-06-05 |
| 7201510 | Edge lighted device with polarization | Tomoyoshi Yamashita | 2007-04-10 |
| 7004610 | Light source device | Tomoyoshi Yamashita | 2006-02-28 |
| 6669350 | Planar light source system and light deflecting device therefor | Tomoyoshi Yamashita, Issei Chiba | 2003-12-30 |
| 6502947 | Planar light source device and liquid crystal display apparatus | Hiroki Matsumoto, Masaharu Oda | 2003-01-07 |
| 6332691 | Surface light source device, and liquid crystal display device, sign display apparatus and traffic sign display apparatus using the surface light source device | Masaharu Oda, Issei Chiba | 2001-12-25 |
| 6312787 | Resin sheet, process and apparatus for producing same, surface light source element and laminate | Masaharu Oda, Issei Chiba | 2001-11-06 |
| 6244719 | Surface light source device and liquid crystal display device sign display apparatus and traffic sign display apparatus using the surface light source device | Masaharu Oda, Issei Chiba | 2001-06-12 |
| 6099135 | Surface light source element and liquid crystal display device, sign device and traffic control sign device using same | Masaharu Oda, Issei Chiba | 2000-08-08 |
| 5834145 | Electrophotographic photosensitve member and image forming apparatus | Kazuo Yoshinaga, Yuichi Hashimoto, Yoshio Kashizaki | 1998-11-10 |
| 5633702 | Transfer material carrying member and image-forming apparatus comprising such transfer material carrying member | Katsumi Aoki | 1997-05-27 |
| 5573880 | Carrier for electrophotography, process for its production, two-component type developer, and image forming method | Shinya Mayama, Takeshi Ikeda, Yuko Sato, Yoshinobu Baba, Hiroshi Aoto +2 more | 1996-11-12 |