35 Utility Patents
#14 in Saitama-ken
#15,269 in Japan
#71,812 in the World
Forward Citations = 343
Company Filing History:
Asahi Kogaku Kogyo Kabushiki Kaisha

Seiko Optical Products Co., Ltd.
4. 2 out of 176

5. 1 out of 33,361

where one patent can have more than one assignee
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