Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5297228 | Method of connecting an optical fiber to an optical waveguide | Hisaharu Yanagawa, Takeo Shimizu, Shiro Nakamura | 1994-03-22 |
| 5291575 | Manufacturing method for waveguide-type optical components | Hisaharu Yanagawa | 1994-03-01 |