Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10295336 | Element provided with portion for position determination and measuring method | Takahiro Fujioka, Atsuya Fushiki, Katsumoto Ikeda | 2019-05-21 |
| 10295754 | Position determination method and element | Takahiro Fujioka, Katsumoto Ikeda | 2019-05-21 |
| 10120145 | Optical element with annular light-collecting area forming an annular image outside itself | Soshi Tsuruta, Hisashi MAKI, Takahiro Fujioka, Katsumoto Ikeda | 2018-11-06 |