24 Utility Patents
#5,680 in Tokyo
#27,957 in Japan
#129,648 in the World
Forward Citations = 975
Company Filing History:

Kabushiki Kaisha Daini Seikosha
Seiko Instruments & Electronics Ltd.
4. 1 out of 3
Sonic Corporation
5. 1 out of 5
Woojin Corporation
where one patent can have more than one assignee
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