Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11358311 | Optical element and method for manufacturing optical element | Takehiko Goshima, Yoshihiro Okumura, Hiroshi Umetsu | 2022-06-14 |
| 11156552 | Prism, prism production method, mold, and sensor chip | Yoshihiro Okumura, Takehiko Goshima | 2021-10-26 |
| 10369728 | Optical element and method for manufacturing optical element | Takehiko Goshima, Yoshihiro Okumura, Hiroshi Umetsu | 2019-08-06 |
| 7488170 | Metallic mold for optical element and optical element | Shigeru Hosoe, Yuichi Atarashi | 2009-02-10 |
| 7366395 | Manufacturing method of die for optical element molding | Shigeru Hosoe | 2008-04-29 |