89 Utility Patents
#5 in Sodegaura
#2,026 in Japan
#11,750 in the World
Forward Citations = 899
Company Filing History:





Idemitsu Korea Co., Ltd.
4. 1 out of 1
Idemtisu Kosan Co., Ltd.
5. 1 out of 3
Petroleum Energy Center, a Juridical Incorporated Foundation
where one patent can have more than one assignee
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