YW

Yoshihiro Wakayama

KC Kai R&D Center Co.: 4 patents #10 of 70Top 15%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
Overall (All Time): #1,030,803 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
D575903 Safety razor handle 2008-08-26
D500173 Handle for a holder for a safety razor blade 2004-12-21
D499511 Safety razor 2004-12-07
D481237 Safety razor holder 2003-10-28
5830269 Method of preparing group II-VI or III-V compound single crystal Tomohiro Kawase, Masami Tatsumi 1998-11-03