54 Utility Patents
#20 in Nirasaki
#6,676 in Japan
#33,364 in the World
Forward Citations = 1,115
Company Filing History:


Sumitomo Osaka Cement Co., Ltd.
4. 2 out of 23
5. 1 out of 1
Tokyo Hy-power Labs, Inc.
where one patent can have more than one assignee
Get your Inventor Badge Today