Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670261 | Composite metal sheet and method for producing it | Toru Kameya | 1997-09-23 |
| 5648126 | Process for manufacturing a surface-treated metal sheet of high durability | Toru Kameya, Hisanori Shimizu, Mitsuru SHIMAMURA | 1997-07-15 |