Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8607434 | Method for surface treatment of metal plate and vehicle treated thereby | Tomonori Sumikawa | 2013-12-17 |
| 8516679 | Method for surface treatment of metal plate and vehicle treated thereby | Tomonori Sumikawa | 2013-08-27 |
| 8205318 | Method for surface treatment of metal plate and vehicle treated thereby | Tomonori Sumikawa | 2012-06-26 |