38 Utility Patents
#19 in Ebina
#13,189 in Japan
#62,946 in the World
Forward Citations = 427
Company Filing History:

Tokyo Ohka Kogyo Co., Ltd.

4. 3 out of 5
Kanto Gakuin University Surface Engineering Research Institute
5. 2 out of 3
Kanto Gakuin School Corporation
where one patent can have more than one assignee
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