16 Utility and 2 Design Patents
#3,123 in Yokohama
#49,007 in Japan
#227,468 in the World
rank by utility patentsForward Citations = 260
Company Filing History:



4. 2 out of 152
Hitachi Automotive Engineering Co., Ltd.
5. 2 out of 8
The Tsurumi-seiki Co., Ltd.
where one patent can have more than one assignee
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