Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4455849 | Press-rolling process for producing a metal tubular product | Shigeru Uchida, Kazuo Watanabe, Kousaku Ozawa | 1984-06-26 |
| 4382375 | Method of rolling metal strip | Hiroyasu Yamamoto, Koe Nakajima, Yuji Uehori | 1983-05-10 |
| 4190887 | Press roll piercing method | Seishiro Yoshiwara, Samon Yanagimoto | 1980-02-26 |