Membership
Tour
Register
Log in
Toshiharu Watanabe
Follow
Person
Sakai, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Rolling bearing
Patent number
6,547,442
Issue date
Apr 15, 2003
Koyo Seiko Co., Ltd.
Toshiharu Watanabe
C21 - METALLURGY OF IRON