6 Utility Patents
#7,224 in Osaka
#139,573 in Japan
#695,828 in the World
Forward Citations = 9
Company Filing History:
Sanko Kaihatsu Kagaku Kenkyusho
Kanzaki Paper Manufacturing Co., Ltd.
Sanko Co., Ltd.
4. 1 out of 1
Sanko Haihatsu Kagaku Kenkyusho
where one patent can have more than one assignee
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