Inventor
WASHIZUKA MASAKAZU
JP4 patents
Patents
4 patentsUS9221305B2Dec 29, 2015
Heavy duty pneumatic tire
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US10195907B2Feb 5, 2019
Heavy-duty tire
SUMITOMO RUBBER IND1 citations58
US7469731B2Dec 30, 2008
Heavy-duty tire having ground-contact surface shape
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US10183533B2Jan 22, 2019
Heavy-duty tire
SUMITOMO RUBBER IND0 citations38