Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673579 | Welded steel pipe manufacturing apparatus and method | Takaaki Toyooka, Motoaki Itadani, Susumu Itadani, Tsutomu Ide | 1997-10-07 |
| 5301869 | Machine for manufacturing welded steel pipes and method for handling the machine | Takaaki Toyooka, Susumu Itadani, Tsutomu Ide | 1994-04-12 |
| 4352167 | Method of locating sound generation within enclosure | Izumi Kobayashi, Mitsuo Suzuki, Kimio Yamada, Shigeru Izumi, Yoshihiro Michiguchi | 1982-09-28 |