Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9547152 | Plastic optical element and optical scanner and imaging forming device including the same | Eiichi Hayashi, Go Takahashi | 2017-01-17 |
| 9500778 | Optical element, mold, and optical device | Takayuki Nakamura, Kentaroh Hagita, Toshiya Yamaguchi | 2016-11-22 |
| 9036261 | Optical element, light diffusing element, and image display apparatus | Takayuki Nakamura, Hiroshi Nakanuma, Kentaroh Hagita | 2015-05-19 |
| 8743444 | Optical scanning device, image forming apparatus, scanning lens, and molding method of the scanning lens | Naoki Miyatake, Tadashi Nakamura, Eiichi Hayashi, Go Takahashi | 2014-06-03 |