HM

Hirotsugu Masuda

BL Bridgestone Tire Company Limited: 2 patents #115 of 438Top 30%
Bridgestone: 1 patents #1,586 of 2,860Top 60%
Overall (All Time): #1,673,118 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4740406 Porous ceramic structure Tsuneaki Narumiya, Eigo Tanuma, Munehiko Kato 1988-04-26
4401325 Flexible pipe coupling Kazuo Tsuchiya, Yuji Sakaguchi 1983-08-30
4296705 Pneumatic marine fender Hisanari Uruta, Kaneaki Takahashi, Tomoyuki Kurata 1981-10-27