Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8660463 | Image forming apparatus having structure for securing removable unit | — | 2014-02-25 |
| 4869623 | Method of broaching outer periphery of lobe-type rotor of roots-type fluid machine, and broaching cutter used in the method | Takahiro Iwase, Naofumi Masuda, Takuo Sibata, Hiroyuki Mochizuki, Nobuo Kobayashi +2 more | 1989-09-26 |
| 4717322 | Roots-type fluid machine | Naofumi Masuda, Takahiro Iwase, Hiroyuki Mochizuki, Takuo Sibata, Takashi Miyake +1 more | 1988-01-05 |
| 4693813 | Method of broaching outer periphery of lobe-type rotor of roots-type fluid machine, and broaching cutter used in the method | Takahiro Iwase, Naofumi Masuda, Takuo Sibata, Hiroyuki Mochizuki, Nobuo Kobayashi +2 more | 1987-09-15 |