Issued Patents All Time
Showing 1–8 of 8 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, Hiroyuki Mochizuki +2 more | 1989-09-26 |
| 4730963 | Broaching machine for external broaching of rotor | Hosao Shirai, Takuo Sibata, Sakae Sugishima | 1988-03-15 |
| 4701085 | Method and apparatus for external broaching of resin-coated parts | Takuo Sibata | 1987-10-20 |
| 4693813 | 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, Hiroyuki Mochizuki +2 more | 1987-09-15 |
| 4416242 | Intake heating apparatus of an internal combustion engine | Keigo Kato | 1983-11-22 |
| 4407254 | Intake heating apparatus of an internal combustion engine | Keigo Kato | 1983-10-04 |
| 4399796 | Intake heating device of an internal combustion engine | Keigo Kato, Masahisa Ando | 1983-08-23 |
| 4398522 | Intake heating device of an internal combustion engine | Keigo Kato, Masahisa Ando | 1983-08-16 |