Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5356665 | Method of manufacturing a pipe coated with a resin layer on the inner surface thereof | Shinichi Nishiyama, Hajime Abe, Noboru Hagiwara | 1994-10-18 |
| 5207248 | Pipe coated with a resin layer on the inner surface thereof | Shinichi Nishiyama, Hajime Abe, Noboru Hagiwara | 1993-05-04 |
| 4838063 | Method for manufacturing metallic tube members | Sinichi Nishiyama, Hajime Abe, Noboru Hagiwara | 1989-06-13 |