Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6546591 | Pressure pad and cylinder cleaning apparatus | Hiraku Onuma, Takayuku Goto | 2003-04-15 |
| 6253413 | Pressure pad and cylinder cleaning apparatus | Hiraku Onuma, Takayuku Goto | 2001-07-03 |