Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6535910 | Electronic mail system with mail content class designation | Yuriko Kashu | 2003-03-18 |
| 6470323 | Goods sales management system | Yuriko Kashu | 2002-10-22 |
| 6466915 | Customer history management method and system in online shopping | Yuriko Kashu | 2002-10-15 |
| 5946665 | On line shopping system using a communication system | Satoshi Fujii | 1999-08-31 |
| 5890139 | Answering method and system in online shopping | Yuriko Kashu | 1999-03-30 |