22 Utility and 1 Design Patents
#1,701 in Osaka
#31,904 in Japan
#147,970 in the World
rank by utility patentsForward Citations = 63
Company Filing History:
Panasonic Intellectual Property Management Co., Ltd.

Other
4. 2 out of 3
Nittetsu Cement Co., Ltd.
5. 1 out of 1
Nippon Steel Cement Co., Ltd.
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