Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889749 | Identification card | Masato Ohashi | 1989-12-26 |
SK
Shiyoojiro Kodai
Ryoden Kasei Co.: 1 patents #2 of 3Top 70%
Overall (1989): #57,561 of 140,708Top 45%
1
Patents 1989