Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5509098 | Optical transmission line and a method of forming thereof | Masayuki Nishimura | 1996-04-16 |
| 5430822 | Optical communication system including dispersion compensating optical fibers | Tomonori Kashiwada, Masayuki Nishimura | 1995-07-04 |
| 5381261 | Optical isolator | Shigeru Hirai, Youichi Ishiguro, Yasuji Hattori, Masayuki Nishimura, Minoru Watanabe +1 more | 1995-01-10 |
| 5214524 | Optical communication system | Akira Nishimura, Shuzo Suzuki | 1993-05-25 |
| 5214728 | Light communication system | Kohji Nakazato, Izumi Sankawa | 1993-05-25 |
| 5202947 | Optical fiber component optical coupler and method of producing thereof | Sumio Hoshino, Masumi Ito, Hiroo Kanamori, Hisasi Izumita | 1993-04-13 |
| 5184244 | Optical communication system and communication method | Akira Nishimura, Shuzo Suzuki | 1993-02-02 |
| 5167685 | Method for manufacturing a fiber type coupler | Masumi Fukuma | 1992-12-01 |
| 5136670 | Method for optical switching and an optical switch | Kohji Nakazato | 1992-08-04 |
| 5129020 | Wavelength selective optical fiber coupler | Masumi Fukuma | 1992-07-07 |
| 5077814 | Optical transmission line for use in an optical communication system | Masumi Fukuma | 1991-12-31 |
| 5046804 | Method for manufacturing a fiber type coupler | Masumi Fukuma | 1991-09-10 |
| 4848872 | Optical fiber core collator | Masahiko Fukuda | 1989-07-18 |
| 4840482 | Method of coated fiber identification in optical transmission network | Shuzo Suzuki | 1989-06-20 |
| 4822399 | Glass preform for dispersion shifted single mode optical fiber and method for the production of the same | Hiroo Kanamori, Hiroshi Yokota, Gotaro Tanaka, Yoichi Ishiguro, Masahiro Takagi +1 more | 1989-04-18 |