Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12259522 | Dielectric multilayer film, method for producing same and optical member using same | Kazunari Tada, Yasushi Mizumachi | 2025-03-25 |
| 12242026 | Optical element and optical element production method | Kazunari Tada | 2025-03-04 |
| 12024767 | Dielectric film, method for producing same and optical member using same | Kazunari Tada | 2024-07-02 |
| 11780728 | Forming method of thin layer | Kazunari Tada, Yasushi Mizumachi | 2023-10-10 |
| 8395982 | Objective lens for optical pickup device, optical pickup device, and optical information recording and reproducing device | Shogo Yamamoto, Kenichi Ishii, Takeshi Kojima, Kentarou Nakamura | 2013-03-12 |