Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6756460 | Water-soluble copolymer and its production process and use | Takuya Saeki, Junichi Nakamura, Yoshikazu Fujii, Shigeru Yamaguchi | 2004-06-29 |
| 6684137 | Traffic accident recording system | Ichiro Masaki | 2004-01-27 |