Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799387 | Automatic ultrasonic testing method | — | 1989-01-24 |
| 4798697 | Process for preparation of injection molded body of olefin/vinyl alcohol copolymer | Shigezo Nohara, Sadao Hirata, Masami Hirano, Isao Tanikawa | 1989-01-17 |