MA

Masafumi Ata

SO Sony: 2 patents #121 of 1,124Top 15%
Overall (1994): #26,284 of 165,921Top 20%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5374495 Developer for electrostatic electrophotography Koichi Kawasumi, Yuji Yakura, Haruo Watanabe 1994-12-20
5340631 Clathrate inclusion compounds and optical recording medium using the same Nobuyuki Matsuzawa, Yoko Hayashi, Shin-Ichiro Tamura 1994-08-23