Seiji Ishida

HI Hitachi: 1 patents #961 of 2,733Top 40%

HC Hitachi Industrial Equipment Systems Co.: 1 patents #5 of 71Top 8%

📍 Tsuchiura, JP: #21 of 70 inventorsTop 30%

Overall (2011): #170,832 of 364,097Top 50%

Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7920395	Pulse width modulation method for a power converter	Atsuhiko Nakamura	2011-04-05