22 Utility Patents
#348 in Chiba
#31,160 in Japan
#143,090 in the World
Forward Citations = 259
Company Filing History:

Denki Kagaku Kogyo Kabushiki Kaisha
Showa Denko Kabushiki Kaisha
4. 2 out of 830,757 patents
Other
5. 1 out of 166

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