Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880515 | Surface treatment method | Masato Yoshikawa, Kazuo Naito, Toshio Honda, Tomonobu Hata | 1989-11-14 |
YK
Yukihiro Kusano
Overall (1989): #39,589 of 140,708Top 30%
1
Patents 1989