Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880515 | Surface treatment method | Masato Yoshikawa, Yukihiro Kusano, Kazuo Naito, Toshio Honda | 1989-11-14 |
TH
Tomonobu Hata
Overall (1989): #49,137 of 140,708Top 35%
1
Patents 1989