14 Utility Patents
#11,198 in Tokyo
#58,129 in Japan
#270,608 in the World
Forward Citations = 223
Company Filing History:

Sigma Corporation
Asahi Kogaku Kogyo Kabushiki Kaisha
Get your Inventor Badge Today
#11,198 in Tokyo
#58,129 in Japan
#270,608 in the World
Company Filing History:

Get your Inventor Badge Today