11 Utility Patents
#14,583 in Tokyo
#76,955 in Japan
#363,101 in the World
Forward Citations = 9
Company Filing History:


Dowa Holdings Co., Ltd.
4. 1 out of 12
Denki Kogyo Company, Limited
5. 1 out of 500
Thk Co., Ltd.
where one patent can have more than one assignee
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