142 Utility Patents
#139 in Tokyo
#603 in Japan
#4,489 in the World
Forward Citations = 1,128
Company Filing History:

Asahi Kogaku Kogyo Kabushiki Kaisha




4. 4 out of 487
Hitachi Industrial Equipment Systems Co., Ltd.
5. 2 out of 621
Mitsubishi Paper Mills Limited
where one patent can have more than one assignee
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