Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346176 | Glass for optical fiber | Toyotaka Manabe | 1982-08-24 |
| 4343638 | Method for manufacturing glass fibers from an infrared ray-transmitting glass fiber material | Seiko Mitachi, Shuichi Shibata, Toyotaka Manabe, Mitsuho Yasu | 1982-08-10 |