Hirotaka Yamasaki

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Lubricant composition
- Patent number 8,557,751
- Issue date Oct 15, 2013
- Idemitsu Kosan Co., Ltd.
- Hirotaka Yamasaki
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricating oil for compression-type refrigerators containing penta...
- Patent number 6,261,474
- Issue date Jul 17, 2001
- Idemitsu Kosan Co., Ltd.
- Tatsuya Egawa
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Process for producing an ether compound
- Patent number 6,087,539
- Issue date Jul 11, 2000
- Idemitsu Kosan Co., Ltd.
- Hirotaka Yamasaki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Mannich reaction product and process for producing the same and use...
- Patent number 5,326,488
- Issue date Jul 5, 1994
- Idemitsu Kosan Co., Ltd.
- Tomiyasu Minokami
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing polycyanoaryl ether powder
- Patent number 5,239,107
- Issue date Aug 24, 1993
- Idemitsu Kosan Co., Ltd.
- Jitsuo Shinoda
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing aromatic nitrile
- Patent number 4,959,487
- Issue date Sep 25, 1990
- Idemitsu Kosan Co., Ltd.
- Hirotaka Yamasaki
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
LUBRICATING OIL COMPOSITION FOR GAS ENGINES
- Publication number 20180171259
- Publication date Jun 21, 2018
- IDEMITSU KOSAN CO., LTD.
- Hirotaka YAMASAKI
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
LUBRICATING OIL COMPOSITION FOR FOUR STROKE ENGINE
- Publication number 20180051228
- Publication date Feb 22, 2018
- IDEMITSU KOSAN CO., LTD.
- Hirotaka YAMASAKI
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
LUBRICANT COMPOSITION
- Publication number 20100126461
- Publication date May 27, 2010
- Idemitsu Kosan Co., Ltd.
- Hirotaka Yamasaki
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...