Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6446509 | Method and apparatus for ultrasonic testing of the surface of columnar structures, and method for grinding rolls by use of them | Hajime Takada, Takashi Morii, Ikuo Yarita | 2002-09-10 |
| 6341525 | Method and apparatus for ultrasonic testing of the surface of columnar structures, and method for grinding rolls by use of them | Hajime Takada, Takashi Morii, Ikuo Yarita | 2002-01-29 |