Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846936 | Method and apparatus for measuring metal exposure in resin covering portion in metal container and constituent member thereof | Michiko Tsurumaru, Yukio Suzuki, Masato Ashina, Hironori Kobayashi | 1989-07-11 |