Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8251678 | Vacuum pump unit | Takashi Hozumi, Takanori Inada, Kozo Matake, Yoshinori Ojima, Susumu Miyake +1 more | 2012-08-28 |
| 7338266 | Screw pump and method of operating the same | Kozo Matake | 2008-03-04 |