38 Utility Patents
#2,869 in Tokyo
#13,026 in Japan
#62,013 in the World
Forward Citations = 157
Company Filing History:

Tokyo Ohka Kogyo Co., Ltd.

4. 4 out of 43
Primearth Ev Energy Co., Ltd.
5. 3 out of 832,347 patents
Other
where one patent can have more than one assignee
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