SI

Seiji Ishikawa

HI Hitachi: 1 patents #1,316 of 3,771Top 35%
HC Hitachi Engineering Co.: 1 patents #3 of 53Top 6%
NI Ngk Insulators: 1 patents #76 of 176Top 45%
Overall (2004): #42,145 of 270,089Top 20%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6757621 Process management system Fumio Mizuno, Seiji Isogai, Kenji Watanabe, Yasuhiro Yoshitake, Terushige Asakawa +12 more 2004-06-29
6708564 Angular velocity measuring apparatus Takayuki Kikuchi 2004-03-23