Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7689369 | Problem diagnosis method and problem repair method for laser device | Akira Watanabe, Tadashi Okuno, Tetsumi Sumiyoshi, Hitoshi Sekita | 2010-03-30 |
| 5011557 | Method for forming joined section of optical branch fibers product, and apparatus therefor | Takao Shimizu | 1991-04-30 |
| 4875002 | Method of testing semiconductor wafers | Hideo Sakamoto | 1989-10-17 |