Hiroshi Ohya

HI Hitachi: 1 patents #1,316 of 3,771Top 35%

Overall (2004): #208,627 of 270,089Top 80%

Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6749233	Sleeve-type pipe joint	—	2004-06-15