RW

Ryoichi Watabe

Bridgestone: 7 patents #326 of 2,860Top 15%
Overall (All Time): #731,568 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9623710 Pneumatic tire Yoshio Kaji, Kentaro Saeki, Makoto Kurokawa 2017-04-18
9409446 Pneumatic radial tire with tread having blocks having waved sipes Koujiro Yamaguchi 2016-08-09
9233514 Tire mold, tire, and tire manufacturing method Hiroyuki Katsuno, Masahiro Katayama 2016-01-12
8997811 Studless tire 2015-04-07
8636043 Pneumatic tire 2014-01-28
8210221 Pneumatic tire with tread having inside and outside circumferential sipes Yukihiro Kiwaki 2012-07-03
8020595 Pneumatic tire with tread having sipes and shallow grooves Yukihiro Kiwaki, Kenichi Shibata, Kazuyoshi Tagawa 2011-09-20