YH

Yoshiaki Hisagen

SO Sony: 3 patents #10,744 of 25,231Top 45%
📍 Tagajo, JP: #17 of 34 inventorsTop 50%
Overall (All Time): #1,626,871 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6033722 Method for manufacturing electrode Takeshi Koike, Shigeo Kimura, Setuo Kawagishi, Tsunekazu Terui 2000-03-07
4443490 Magnetic recording medium Kaoru Nakajima, Kunio Kobayashi 1984-04-17
4368239 Magnetic recording medium Kaoru Nakajima, Kunio Kobayashi 1983-01-11