Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863513 | Iron-base anti-wear sintered alloy member | Shigeru Urano, Osamu Hirakawa, Shunsuke Takeguchi | 1989-09-05 |
| 4732310 | Composite camshaft and method of making the same | Takasi Uda, Shunsuke Takeguchi | 1988-03-22 |
| 4665766 | Shaft member | Osamu Hirakawa | 1987-05-19 |
| 4649011 | Method of making a cam shaft | Shigeru Urano, Osamu Hirakawa, Shunsuke Takegushi | 1987-03-10 |
| 4644912 | Cam shaft and method of manufacture | Shigeru Urano, Osamu Hirakawa, Shunsuke Takegushi | 1987-02-24 |
| 4615310 | Camshaft with lubricating oil supplying function | Osamu Hirakawa | 1986-10-07 |
| 4612695 | Method of manufacturing a hollow cam shaft | Yoshiaki Fujita, Atsushi Shimura | 1986-09-23 |
| 4595556 | Method for manufacturing camshaft | Shigeru Urano, Osamu Hirakawa, Shunsuke Takeguchi | 1986-06-17 |
| 4556532 | Method for manufacturing camshaft | Shigeru Urano, Satoru Kato | 1985-12-03 |
| 4513977 | Steel floating seal with remelted deposit-alloyed wear surfaces | Takeshi Hiraoka | 1985-04-30 |
| 4473232 | Oil scraper ring with controlled gap arrangement | Takeji Tsuchiya | 1984-09-25 |