Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683642 | PC strand coated with rust inhibitor and method for producing the same | Hiroshi Muguruma, Kazuyoshi Chikiri | 1997-11-04 |
| 5670208 | PC stand coated with rust inhibitor and method thereof | Kazuyoshi Chikiri | 1997-09-23 |