23 Utility Patents
#1,592 in Osaka
#29,888 in Japan
#138,545 in the World
Forward Citations = 61
Company Filing History:
Nihon Superior Co., Ltd.
Nihon Superior Sha Co., Ltd.

4. 1 out of 832,575 patents
Other
5. 1 out of 812

where one patent can have more than one assignee
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