Masashi Dasai

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Ichihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Internal combustion engine oil composition
- Patent number 5,858,932
- Issue date Jan 12, 1999
- Idemitsu Kosan Co., Ltd.
- Masashi Dasai
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricating oil composition
- Patent number 5,516,440
- Issue date May 14, 1996
- Idemitsu Kosan Co., Ltd.
- Masashi Dasai
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricating oil composition containing a partial ester of a polyhyd...
- Patent number 5,273,672
- Issue date Dec 28, 1993
- Idemitsu Kosan Company Limited
- Masashi Dasai
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricating oil composition
- Patent number 5,064,546
- Issue date Nov 12, 1991
- Idemitsu Kosan Co., Ltd.
- Masashi Dasai
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricating oil composition
- Patent number 4,800,029
- Issue date Jan 24, 1989
- Idemitsu Kosan Co., Ltd.
- Masashi Dasai
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...