Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6924457 | Laser processing method to a class substrate and an optical diffraction element obtained thereby, and a method for manufacturing optical elements | Keiji Tsunetomo | 2005-08-02 |
| 6847770 | Lens function-including optical fiber and method of producing the same | Shigeo Kittaka, Masami Kitano | 2005-01-25 |