Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338111 | Process for producing a glass preform for optical fiber | Takao Edahiro, Gotaro Tanaka, Toru Kuwahara | 1982-07-06 |
| 4318726 | Process for producing optical fiber preform | Takao Edahiro, Gotaro Tanaka, Toru Kuwahara | 1982-03-09 |