Issued Patents All Time
Showing 76–78 of 78 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 4793842 | Method for producing glass preform for optical fiber | Hiroshi Yokota, Hiroo Kanamori, Gotaro Tanaka, Toshio Danzuka | 1988-12-27 |
| 4737179 | Method for producing glass preform for optical fiber | Gotaro Tanaka, Hiroshi Yokota, Shigeru Tanaka, Hiroo Kanamori | 1988-04-12 |