KH

Kazuhisa Hayakawa

SC Shin-Etsu Chemical Co.: 26 patents #167 of 2,176Top 8%
SC Shin-Etsu Quartz Products Co.: 1 patents #77 of 149Top 55%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Joetsu, JP: #45 of 239 inventorsTop 20%
Overall (All Time): #151,164 of 4,157,543Top 4%
26
Patents All Time

Issued Patents All Time

Showing 26–26 of 26 patents

Patent #TitleCo-InventorsDate
5047086 Cement composition for extrusion Tohru Chiba, Shin Nakamura 1991-09-10