59 Utility and 5 Design Patents
#34 in Machida
#5,449 in Japan
#27,768 in the World
rank by utility patentsForward Citations = 1,850
Company Filing History:



4. 4 out of 34
Hitachi Keiyo Engineering Co., Ltd.
5. 4 out of 27
Sony Kabushiki Kaisha
where one patent can have more than one assignee
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