Issued Patents All Time
Showing 101–107 of 107 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5381261 | Optical isolator | Shigeru Hirai, Youichi Ishiguro, Yasuji Hattori, Masayuki Shigematsu, Minoru Watanabe +1 more | 1995-01-10 |
| 5265179 | Method of manufacturing fiber-optic collimators | Yoichi Ishiguro, Shigeru Hirai, Yasuji Hattori | 1993-11-23 |
| 5177322 | Developing device having toner carrying body and method of fabricating toner carrying body | Hiromu Ono | 1993-01-05 |
| 4838690 | Simultaneous bi-directional optical time domain reflectometry method | Eric L. Buckland | 1989-06-13 |
| 4779978 | Method of measuring the refractive index profile of optical fibers | William H. Hatton, Eric L. Buckland | 1988-10-25 |
| 4715695 | Fiber for optical transmission | Shuzo Suzuki, Hiroshi Yokoto | 1987-12-29 |
| 4662743 | Method of measuring the geometry of optical fibers | William H. Hatton | 1987-05-05 |