38 Utility Patents
#971 in Yokohama
#12,799 in Japan
#60,675 in the World
Forward Citations = 561
Company Filing History:

Copyer Co., Ltd.
Copyer Kabushiki Kaisha
4. 3 out of 53
Canon Inc.
5. 1 out of 830,757 patents
Other
where one patent can have more than one assignee
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