Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8430974 | Carburized and induction-hardened component | Takao Taniguchi, Kouji Ohbayashi, Kazuaki Okada, Hideo Kanisawa, Shuji Kozawa | 2013-04-30 |
| 7998282 | Heat treatment method of steel components, steel components and manufacture method of steel components | Takao Taniguchi, Koji Ohbayashi, Kazuaki Okada, Hideo Kanisawa, Shuji Kozawa | 2011-08-16 |
| 4747763 | Rotor assembly of roots pump | Takuo Sibata, Yoshio Kuroiwa, Katsuro Harada, Kichiro Kato, Naofumi Masuda | 1988-05-31 |
| 4647008 | Solenoid valve for hydraulic control | Takuo Sibata, Takashi Izuo | 1987-03-03 |
| 4369558 | Outer race working method and apparatus therefor | Yasuo Iwata | 1983-01-25 |