HH

Hisayuki Hirayama

SI Seiko Instruments: 1 patents #66 of 192Top 35%
Overall (2004): #210,413 of 270,089Top 80%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6830501 End face polishing device Kouji Minami, Kisaburo Yoshida, Masaharu Sugiyama 2004-12-14