Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4345372 | Method of producing a multicontact spring | Kenji Sekigawa, Mikio Motizuki | 1982-08-24 |
| 4345686 | Material for fixing anchor bolt or like and method of manufacturing same | Hiroji Tada, Yoshiichi Yano | 1982-08-24 |