Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5632789 | Abrasive tape | Katsumi Ryoke, Masaaki Fujiyama | 1997-05-27 |
| 5631062 | Magnetic recording medium | Kenichi Masuyama, Hiroaki Takano, Kazuo Kato, Noburo Hibino | 1997-05-20 |
KH
Kazuko Hanai
Overall (1997): #34,340 of 185,788Top 20%
2
Patents 1997