Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842633 | Method of manufacturing molds for molding optical glass elements and diffraction gratings | Makoto Umetani, Hideto Monji, Masaki Aoki | 1989-06-27 |
KK
Kiyoshi Kuribayashi
Overall (1989): #87,139 of 140,708Top 65%
1
Patents 1989