59 Utility Patents
#467 in Yokohama
#5,529 in Japan
#28,121 in the World
Forward Citations = 607
Company Filing History:
Mitsubishi Chemical Corporation
Citizen Electronics Co., Ltd.

4. 3 out of 87
Kasei Optonix, Ltd.
5. 3 out of 499
Mitsubishi Kasei Corporation
where one patent can have more than one assignee
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