Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869623 | Method of broaching outer periphery of lobe-type rotor of roots-type fluid machine, and broaching cutter used in the method | Hajime Takeshita, Takahiro Iwase, Naofumi Masuda, Takuo Sibata, Nobuo Kobayashi +2 more | 1989-09-26 |
| 4806388 | Method and apparatus for coating metal part with synthetic resin | Nobuo Kobayashi, Shigenori Tamaki, Takahiro Iwase, Naofumi Masuda, Yoshio Taguchi | 1989-02-21 |