25 Utility and 1 Design Patents
#5,418 in Tokyo
#26,362 in Japan
#122,288 in the World
rank by utility patentsForward Citations = 41
Company Filing History:

Clarion Co
Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd
4. 3 out of 3,186
Dai Nippon Printing Co., Ltd.
5. 2 out of 90,504

where one patent can have more than one assignee
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