KM

Keiichi Murayama

Sumitomo Electric Industries: 1 patents #1,290 of 3,632Top 40%
Overall (2005): #159,502 of 245,428Top 65%
1
Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6903388 Hetero-junction bipolar transistor and manufacturing method thereof Akiyoshi Tamura, Masanobu Nogome 2005-06-07