24 Utility Patents
#39 in Chiryu
#28,079 in Japan
#130,155 in the World
Forward Citations = 73
Company Filing History:


Yamani Spring Co., Ltd.
where one patent can have more than one assignee
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#39 in Chiryu
#28,079 in Japan
#130,155 in the World
Company Filing History:


Get your Inventor Badge Today