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Yoshihisa Yatsuzuka
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Tokyo, JP
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last 30 patents
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Patent Grant
Lubricant composition and its use in a ball joint
Patent number
6,500,787
Issue date
Dec 31, 2002
Shell Oil Company
Keiji Tanaka
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Lubricant additive and lubricating grease composition containing th...
Patent number
5,877,129
Issue date
Mar 2, 1999
Showa Shell Sekiyu K.K.
Yoshihisa Yatsuzuka
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...