25 Utility Patents
#1,838 in Yokohama
#25,823 in Japan
#119,197 in the World
Forward Citations = 18
Company Filing History:

Otsuka Chemical Co., Ltd.
Other
4. 2 out of 1,031

5. 2 out of 4
Otsuka Chemical Holdings Co., Ltd.
where one patent can have more than one assignee
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