Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882497 | Method and apparatus of measuring outer diameter and structure of optical fiber | Akira Inoue | 1989-11-21 |
YH
Yasuji Hattori
Overall (1989): #42,215 of 140,708Top 35%
1
Patents 1989