Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4741812 | Method for etching electrode foil aluminum electrolytic capacitors | Kouichi Kojima, Masanori Okabayashi, Nobuyoshi Kanzaki, Kenji Touyama | 1988-05-03 |
RS
Ryouichi Shimatani
Overall (All Time): #3,951,196 of 4,157,543Top 100%
1
Patents All Time