Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875918 | Method of manufacturing fiber preform for single-mode fibers | Futoshi Mizutani, Takeshi Kyogoku, Tatsuo Saitoh | 1989-10-24 |
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Shigeki Endoh
Overall (1989): #58,051 of 140,708Top 45%
1
Patents 1989