3 Utility Patents
#478 in Sendai
#236,734 in Japan
Forward Citations = 27
Company Filing History:

Zaidan Hojin Handotai Kenkyu Sinkokai
Tsuken Electric Ind. Co., Ltd.
where one patent can have more than one assignee
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#478 in Sendai
#236,734 in Japan
Company Filing History:

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