Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6476975 | Mother glass composition for graded index lens | Tetsuro Yoshii, Shigeo Kittaka | 2002-11-05 |
| 6470712 | Method of changing the surface of a glass substrate containing silver, by using a laser beam | Keiji Tsunetomo, Masahiro Oikawa, Kenjiro Hamanaka | 2002-10-29 |
| 6397161 | Method for stabilizing output of rain sensor and protection method therefor | Shuhei Tanaka, Keiji Tsunetomo | 2002-05-28 |
| 6360041 | Optical demultiplexer and method of assembling optical demultiplexer in optical axis alignment | Kenichi Nakama | 2002-03-19 |