MH

Masahiro Hiraga

HI Hitachi: 2 patents #771 of 3,950Top 20%
HC Hitachi Keiyo Engineering Co.: 1 patents #8 of 32Top 25%
Overall (2002): #52,354 of 266,432Top 20%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6496397 Inverter device Keijiro Sakai, Toshiaki Okuyama, Kinya Nakatsu, Seiji Ishida, Hiroshi Fujii +1 more 2002-12-17
6486548 Semiconductor module and power converting apparatus using the module Kinya Nakatsu, Toshio Ogawa, Akihiro Tamba, Hiroshi Fujii, Hiroyuki Tomita +2 more 2002-11-26