8 Utility Patents
#18,700 in Tokyo
#103,323 in Japan
#486,754 in the World
Forward Citations = 130
Company Filing History:
Sanwa Denki Kogyo Co., Ltd.
Honda Tsushin Kogyo Co., Ltd.
Other
4. 2 out of 4,553
5. 2 out of 753
where one patent can have more than one assignee
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