Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826543 | Process for producing high toughness, high strength steel having excellent resistance to stress corrosion cracking | Seinosuke Yano, Yoshihiro Okamura, Katsuo Kaku | 1989-05-02 |
| 4822670 | Removable adhesive sheet or tape | Kiyoshi Ono, Yasuo Sakurai, Yoshio Kishimoto, Hiroyasu Miyasaka, Yasuaki Kitazaki +1 more | 1989-04-18 |