Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844604 | Optical fiber bundling material and bundled optical fibers | Timothy E. Bishop, Tohru Ohtaka, Keiichi Bessho, Katsutoshi Igarashi | 1989-07-04 |
| 4816304 | Multi-layer gas-barrier drawn polyester vessel | Shigezo Nohara, Sadao Hirata, Yoshimichi Ohkubo | 1989-03-28 |