26 Utility Patents
#5,154 in Tokyo
#24,813 in Japan
#115,172 in the World
Forward Citations = 117
Company Filing History:
Sumitomo Osaka Cement Co., Ltd.

Other
4. 1 out of 442

5. 1 out of 3,186
Dai Nippon Printing Co., Ltd.
where one patent can have more than one assignee
Get your Inventor Badge Today