Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10088013 | Manufacturing method for multi-layered ring | Tomohiko Nishiyama, Akira Takashima | 2018-10-02 |
| 9939621 | Zoom lens, optical apparatus, and method for manufacturing the zoom lens | Makoto Fujimoto | 2018-04-10 |