Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7714956 | Front illuminating device and a reflection-type liquid crystal display using such a device | Yutaka Sawayama, Yukihiro Sumida, Takeshi Masuda | 2010-05-11 |
| 6940570 | Lighting element for liquid crystal display | Yukihiro Sumida, Takeshi Masuda | 2005-09-06 |
| 6882381 | Liquid crystal display apparatus and electronic device incorporating the same | Yukihiro Sumida, Takeshi Masuda | 2005-04-19 |
| 6879354 | Front-illuminating device and a reflection-type liquid crystal display using such a device | Yutaka Sawayama, Yukihiro Sumida, Takeshi Masuda | 2005-04-12 |
| 6650382 | Reflective LCD with front light and protective member with window | Yukihiro Sumida, Takeshi Masuda | 2003-11-18 |
| 6628352 | Liquid crystal display apparatus and electronic device incorporating the same wherein the optical guide having particular periodic structure | Yukihiro Sumida, Takeshi Masuda | 2003-09-30 |
| 6340999 | Front light, and reflective type LCD including same | Takeshi Masuda, Yukihiro Sumida | 2002-01-22 |