21 Utility Patents
#6,583 in Tokyo
#33,496 in Japan
#153,867 in the World
Forward Citations = 223
Company Filing History:


Denki Kagaku Kogyo Kabushiki Kaisha
4. 1 out of 91

5. 1 out of 1
Somar Corporation and the Institute of Physical and Chemical Research
where one patent can have more than one assignee
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