Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831708 | Method for producing a clad plate by hot rolling | Takao Kawanami, Kenichi Suzuki, Yukihiro Kako | 1989-05-23 |
| 4750947 | Method for surface-alloying metal with a high-density energy beam and an alloy metal | Takao Kawanami | 1988-06-14 |
| 4638939 | Method for producing a clad plate by rolling | Takao Kawanami | 1987-01-27 |
| 4567744 | Method and apparatus for forming long cylindrical metal products | Takao Kawanami | 1986-02-04 |
| 4395896 | Rotary rolling mill and method for rolling of tubular products | Mitsuo Kanda | 1983-08-02 |
| 4318294 | Method of manufacturing seamless metal pipes and tubes | Hirokichi Higashiyama | 1982-03-09 |
| 4289011 | Continuous pipe rolling process | Hirokichi Higashiyama | 1981-09-15 |
| 4190887 | Press roll piercing method | Minoru Kawaharada, Samon Yanagimoto | 1980-02-26 |