29 Utility Patents
#164 in Toyota
#20,849 in Japan
#97,310 in the World
Forward Citations = 171
Company Filing History:



4. 1 out of 72
Aoyama Seisakusho Co., Ltd.
5. 1 out of 1,600
Nippon Soken, Inc.
where one patent can have more than one assignee
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