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Shirahama Shinichi, Konishi Shozaburo, Kano Makoto, Yasuda Yoshiteru, Sakane Tokio: Low-friction sliding device. Nissan Motor, Nippon Oil, August 27, 2003: EP1338641-A1 (26 worldwide citation)

A low-friction sliding mechanism of the present invention comprises first and second sliding members slidable relative to each other at sliding surfaces thereof and a lubricant being applied to the sliding surfaces of the first and second sliding members. The first and second members are made of a d ...


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Sano Takashi, Komatsubara Hitoshi, Wada Hisayuki, Kurosawa Osamu, Itou Masaaki, Matsui Shigeki, Takahashi Masato, Fu Kai, Shirahama Shinichi, Sugiura Izuru, Taguchi Masahiro, Konishi Shozaburo: Lubricant base oil, lubricant composition for internal combustion engine and lubricant composition for driving force transmitting device. Nippon Oil, Petroleum Energy Ct Pec, October 17, 2007: EP1845151-A1 (20 worldwide citation)

The lubricating base oil of the invention is characterized by satisfying at least one of the following conditions (a) or (b). (a) A saturated compound content of 95 % by mass or greater, and a proportion of 0.1-10 % by mass of cyclic saturated compounds among the saturated compounds. (b) The conditi ...


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Sano Takashi, Shirahama Shinichi, Tagawa Kazuo, Komiya Kenichi, Matsui Shigeki, Kurosawa Osamu: (Ja) 潤滑油基油及びその製造方法並びに潤滑油組成物, (En) Lube base oil, process for production thereof, and lubricating oil composition. Nippon Oil Corporation, Petroleum Energy Center, Sano Takashi, Shirahama Shinichi, Tagawa Kazuo, Komiya Kenichi, Matsui Shigeki, Kurosawa Osamu, HASEGAWA Yoshiki, October 11, 2007: WO/2007/114132 (17 worldwide citation)

(EN) A lube base oil characterized by having a saturated hydrocarbon content of 90% by mass or above, a content of cyclic saturated hydrocarbons in the whole saturated hydrocarbon of 40% by mass or below, a viscosity index of 110 or above, and an iodine number of 2.5. The base oil is excellent in vi ...


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Shirahama Shinichi, Sano Takashi, Sugiura Izuru, Taguchi Masahiro: Base oil for lubricant oil. Nippon Oil, Petroleum Energy Center, September 14, 2006: JP2006-241436 (15 worldwide citation)

PROBLEM TO BE SOLVED: To provide an base oil for a lubricant oil, which has excellent viscosity-temperature characteristic feature and excellent stability to heat and oxidation, and also allows the function of an additive incorporated therein to be exhibited at a high level.SOLUTION: The lubricant b ...


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Sano Takashi, Shirahama Shinichi, Tagawa Kazuo: Lubricant base oil. Nippon Oil, Petroleum Energy Center, October 18, 2007: JP2007-270059 (13 worldwide citation)

PROBLEM TO BE SOLVED: To obtain a lubricant base oil which has excellent viscosity-temperature properties and heat/oxidation stability and develops the function of additive at a high level when mixed with the additive.SOLUTION: The lubricant base oil comprises ≥90 mass% of saturated component, has t ...


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Sano Takashi, Shirahama Shinichi, Tagawa Kazuo: Lubricant base oil, lubricating oil composition and method for producing lubricant base oil. Nippon Oil, Petroleum Energy Center, October 18, 2007: JP2007-270062 (12 worldwide citation)

PROBLEM TO BE SOLVED: To obtain a lubricant base oil which has excellent viscosity-temperature characteristics and heat/oxidation stability, satisfies both a high viscosity index and low-temperature viscosity at ≤-35°C even without using a synthetic oil such as a poly-α-olefin-based base oil, an est ...


9
Aoki Tooru, Tagawa Kazuo, Shirahama Shinichi: (Ja) 緩衝器用作動油, (En) Operating oil for buffer. Nippon Oil Corporation, Aoki Tooru, Tagawa Kazuo, Shirahama Shinichi, HASEGAWA Yoshiki, October 16, 2008: WO/2008/123249 (12 worldwide citation)

(EN) Disclosed is an operating oil for a buffer, which comprises a lubricant base oil having an urea adduct vale (defined in the description) of 4 mass% or less and a viscosity index of 100 or greater. The operating oil can achieve all of viscosity-temperature property, shear stability and anti-foam ...


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Shirahama Shinichi, Taguchi Masahiro, Tagawa Kazuo, Sano Takashi: Lubricating base oil. Nippon Oil, Petroleum Energy Center, September 27, 2007: JP2007-246659 (11 worldwide citation)

PROBLEM TO BE SOLVED: To provide a lubricating base oil having excellent viscosity-temperature characteristics and heat/oxidation stability and exhibiting functions of an additive at a higher level when the additive is compounded.SOLUTION: The lubricating base oil satisfies at least either of the fo ...