Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671308 | Optical waveguide having diffraction grating area and method of fabricating the same | Akira Inoue, Katsuya Yamashita, Fumio Ohtsuki, Yutaka Katsuyama | 1997-09-23 |
| 5506674 | Method for identifying an optical fiber using a pattern of reflected light | Akira Inoue, Katsuya Yamashita, Fumio Ohtsuki, Yutaka Katsuyama | 1996-04-09 |
| 5381261 | Optical isolator | Shigeru Hirai, Youichi Ishiguro, Masayuki Nishimura, Masayuki Shigematsu, Minoru Watanabe +1 more | 1995-01-10 |
| 5265179 | Method of manufacturing fiber-optic collimators | Yoichi Ishiguro, Shigeru Hirai, Masayuki Nishimura | 1993-11-23 |
| 4882497 | Method and apparatus of measuring outer diameter and structure of optical fiber | Akira Inoue | 1989-11-21 |