Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833930 | Method of sampling steel material and a device therefor | Kaizo Okamoto, Akira Ichihara, Akimune Sato, Kenji Hirata, Katsuhisa Hirayama +4 more | 1989-05-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833930 | Method of sampling steel material and a device therefor | Kaizo Okamoto, Akira Ichihara, Akimune Sato, Kenji Hirata, Katsuhisa Hirayama +4 more | 1989-05-30 |