Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6309731 | Wiping sheet | Naohito Takeuchi, Takayoshi Konishi, Kazuya Okada | 2001-10-30 |
| 5980673 | Wiping sheet and method for producing the same | Naohito Takeuchi, Takayoshi Konishi, Kazuya Okada | 1999-11-09 |