SI

Sumio Ishihara

SC Sanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Overall (All Time): #2,242,311 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6122385 Sound reproduction apparatus with stable feedback Fumiyasu Konno, Akinori Hasegawa 2000-09-19
5032542 Method of mass-producing integrated circuit devices using strip lead frame Akira Kazami, Masakazu Yamagishi, Kiyoshi Takahashi 1991-07-16