Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886616 | Aluminum surface cleaning agent | Katsuyoshi Yamasoe, Satoshi Ikeda | 1989-12-12 |
| 4728456 | Aluminum surface cleaning agent | Katsuyoshi Yamasoe, Satoshi Ikeda | 1988-03-01 |