Patents Assigned to Nippon Oil Company Ltd.
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Patent number: 6259559Abstract: A laminated glass to be used as a front windshield glass of an automotive vehicle, forming part of a head-up display system for displaying an image of light representing driving information on the windshield glass. The laminated glass comprises inboard-side and outboard-side glass plates of the vehicle. An intermediate film is disposed between and in contact with the inboard-side and outboard-side glass plates. A polarization-direction changing film is disposed between the first and second glass plates and bonded to the outboard-side glass plate with an adhesive containing an ultraviolet ray absorbing agent. The polarization-direction changing film functions to rotate a plane of polarization of light to be incident thereon.Type: GrantFiled: March 25, 1996Date of Patent: July 10, 2001Assignees: Central Glass Company, Limited, Nippon Oil Company, Ltd.Inventors: Kazuya Kobayashi, Takashi Yamate, Motoh Asakura
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Patent number: 5958286Abstract: An automatic transmission fluid composition is provided which has significantly higher coefficients of dynamic friction (.mu.d) and static friction (.mu.s) than those of the conventional automatic transmission fluid. In addition, the composition has a .mu.o/.mu.d ratio close to 1.0, and a small change with the passage of time in frictional properties. The automatic transmission fluid composition comprises 0.01 to 20% by weight of an overbasic oil-soluble metal salt (a) prepared by use of an alkaline-earth metal borate, and 0.01 to 15% by weight of a compound (b) having a long-chain alkyl group and an amino group in the same molecular structure on the basis of the total amount of composition as essential components, the balance being lubricating base oil.Type: GrantFiled: November 24, 1992Date of Patent: September 28, 1999Assignee: Nippon Oil Company, Ltd.Inventor: Masanobu Kitanaka
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Patent number: 5858761Abstract: Bacterium belonging to a new genus, and a process for production of carotenoid pigment selected from the group consisting of astaxanthin, adonixanthin, .beta.-carotene, echinenone, canthaxanthin and zeaxanthin, comprising the steps of culturing a bacterium capable of producing at least one of the carotenoid pigments, and recovering an individual carotenoid pigments.The producer bacterium belongs to new genus.According to the present process various carotenoids can be produced in an industrial scale. By the present process (3S, 3'S)-astaxanthin can be produced in an almost 100% purity.Type: GrantFiled: September 19, 1996Date of Patent: January 12, 1999Assignee: Nippon Oil Company, Ltd.Inventors: Akira Tsubokura, Hisashi Yoneda, Mikihiro Takaki, Takashi Kiyota
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Patent number: 5780399Abstract: An oil-soluble polyester having a weight average molecular weight of 10,000 to 1 000,000, which is a polycondensate prepared by polycondensing the following ingredients (A), (B) and (C):(A) a divalent higher carboxylic acid ingredient,(B) a divalent alcohol ingredient comprising a glycol represented by the following formula:HO--CH.sub.2 --CR.sup.1 R.sup.2 --CH.sub.2 --OHwherein R.sup.1 and R.sup.2 represent a alkyl group, and the sum of carbon numbers in R.sup.1 and R.sup.2 is at least three, and(C) 0.1 to 15% by mole, based on the total of ingredients (A) and (B), of at least one multi-valent ingredient selected from a carboxylic acid with a valency of at least three and an alcohol with a valency of at least three. This oil-soluble polyester is useful as an additive for a lubricating oil.Type: GrantFiled: February 12, 1996Date of Patent: July 14, 1998Assignees: Nippon Zeon Co., Ltd., Harima Chemicals, Inc., Nippon Oil Company, Ltd.Inventors: Yoshihide Ishikawa, Shinsuke Hasegawa, Michio Miyamoto, Shizuo Kitahara, Yutaka Shikatani, Jinichi Igarashi
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Patent number: 5750457Abstract: A solid acid catalyst for paraffin conversion which consists of an acid salt of a heteropoly acid being represented by the following general formula:A.sub.x H.sub.(3-x) PY.sub.12 O.sub.40wherein A represents one ion selected from the group consisting of alkali metal ion and ammonium ion; Y represents at least one atom selected from the group consisting of W and Mo; x represents a number of 2.2 to 2.8, and a metal Group VIII, wherein the acid salt of heteroply acid has been impregnated in the metal of Group VIII, and paraffin conversion process using the same.Type: GrantFiled: July 31, 1995Date of Patent: May 12, 1998Assignee: Nippon Oil Company, Ltd.Inventors: Kyutae Na, Toshio Okuhara, Makoto Misono
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Patent number: 5723417Abstract: An oil-soluble polyester having a weight average molecular weight of 10,000 to 1,000,000, which is a polycondensate prepared by polycondensing the following ingredients (A) and (B): (A) a dicarboxylic acid ingredient, and (B) a diol ingredient comprising (i) a hindered glycol represented by the following formula: HO--CH.sub.2 --CR.sup.1 R.sup.2 --CH.sub.2 --OH wherein R.sup.1 and R.sup.2 independently represent a linear or branched alkyl group, and (ii) an alkylene glycol having at least 4 carbon atoms in the main chain. This oil-soluble polyester is useful as an additive for a lubricating oil.Type: GrantFiled: February 12, 1996Date of Patent: March 3, 1998Assignees: Nippon Zeon Co., Ltd., Harima Chemicals, Inc., Nippon Oil Company, Ltd.Inventors: Shizuo Kitahara, Yutaka Shikatani, Junichi Igarashi, Yoshihide Ishikawa, Shinsuke Hasegawa, Michio Miyamoto
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Patent number: 5705088Abstract: An electrorheological fluid comprising an electrically insulating liquid and acid, iodine or alcohol-treated, or iodine-treated and subsequently electrically insulating film-coated, dispersible carbonaceous particles dispersed therein has a high electrorheological effect even without lowering in a high temperature region, though it is a water-free system.Type: GrantFiled: February 14, 1996Date of Patent: January 6, 1998Assignee: Nippon Oil Company, Ltd.Inventors: Makoto Sasaki, Yukio Kobayashi, Katsuhiko Haji
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Patent number: 5702630Abstract: A fluid having both magnetic and electrorheological characteristics, which comprises composite particles of ferromagnetic particles and a metallic oxide prepared by a sol-gel reaction of a metal alkoxide in the presence of the ferromagnetic particles and a solvent and a process for producing the same.Type: GrantFiled: March 19, 1997Date of Patent: December 30, 1997Assignee: Nippon Oil Company, Ltd.Inventors: Makoto Sasaki, Hisatake Sato
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Patent number: 5624890Abstract: A lubricating oil composition for two-stroke cycle cylinder injection engines contains as essential ingredients: (A): a base oil containing (1) 10-30% by mass of polybutene with number-average molecular weight 250-350 on the basis of a total amount of the base oil, (2) 30-60% by mass of polybutene with number-average molecular weight 450-550 on the basis of the total amount of the base oil, and (3) 15-40% by mass of mineral oil and/or a synthetic oil, which is other than polybutene, with kinematic viscosity 2-35 mm.sup.2 /s at 100.degree. C., on the basis of the total amount of the base oil; and (B): 2-15 parts by mass of alkylaminophenol having an alkyl group with 8-400 carbon atoms relative to 100 parts by mass of the base oil.Type: GrantFiled: November 27, 1995Date of Patent: April 29, 1997Assignees: Nippon Oil Company, Ltd, Yamaha Hatsudoki Kabushiki KaishaInventors: Mineo Kagaya, Kazuo Miyazawa
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Patent number: 5607839Abstract: Bacterium belonging to a new genus, and a process for production of carotenoid pigment selected from the group consisting of astaxanthin, adonixanthin, .beta.-carotene, echinenone, canthaxanthin and zeaxanthin, comprising the steps of culturing a bacterium capable of producing at least one of the carotenoid pigments, and recovering an individual carotenoid pigments.The producer bacterium belongs to new genus.According to the present process various carotenoids can be produced in an industrial scale. By the present process (3S, 3'S)-astaxanthin can be produced in an almost 100% purity.Type: GrantFiled: July 19, 1994Date of Patent: March 4, 1997Assignee: Nippon Oil Company, Ltd.Inventors: Akira Tsubokura, Hisashi Yoneda, Mikihiro Takaki, Takashi Kiyota
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Patent number: 5543041Abstract: The present invention relates to a supply system for pre-treating a petroleum distillation residual oil to be fed to a hydrogenation apparatus. In order to remove iron fine particles having a particle size of less than 25.mu. in the feed oil which could be not removed in the prior art, by constituting a system comprising a heater for heating the feed oil to a given temperature by heat exchange with a high temperature bottom oil of a fractionating tower after hydrogenation treatment of the feed oil, a filter equipped with a back washing mechanism for filtering solid materials in the feed oil after heating, and a high gradient magnetic separator for magnetically separating magnetic iron fine particles having a particle size of less than 25.mu. contained in the feed oil.Type: GrantFiled: July 6, 1994Date of Patent: August 6, 1996Assignees: Nippon Oil Company, Ltd., Nippon Petroleum Refining Company, Ltd.Inventors: Hajime Okazaki, Manabu Kazato, Masaoki Ouchi, Haruki Nagano, Masaru Ushio, Kozo Kamiya
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Patent number: 5536426Abstract: An electrorheological fluid comprising an electrically insulating liquid and acid, iodine or alcohol-treated, or iodine-treated and subsequently electrically insulating film-coated, dispersible carbonaceous particles dispersed therein has a high electrorheological effect even without lowering in a high temperature region, though it is a water-free system.Type: GrantFiled: May 18, 1994Date of Patent: July 16, 1996Assignee: Nippon Oil Company, Ltd.Inventors: Makoto Sasaki, Yukio Kobayashi, Katsuhiko Haji
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Patent number: 5523157Abstract: Dispersion particles for a fluid having magnetic and electrorheological effects simultaneously, which comprise conductive ferromagnetic particles whose surfaces are coated with an electrically insulating layer and a fluid used the same. The present fluid has a larger torque induced upon application of both a magnetic field and an electric field than that in a fluid having only magnetic or electrorheological effects and higher response speed than that in a fluid having only magnetic. Furthermore, in the present fluid current difficultly passes.Type: GrantFiled: September 19, 1994Date of Patent: June 4, 1996Assignee: Nippon Oil Company, Ltd.Inventors: Makoto Sasaki, Katsuhiko Haji
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Patent number: 5516445Abstract: A fluid having both magnetic and electrorheological effects contains electroconductive ferromagnetic particles, the surfaces of which are coated with a particular electrically insulating layer having a critical thickness and electrical resistance, dispersed in an electrically non-conductive solvent.Type: GrantFiled: May 30, 1995Date of Patent: May 14, 1996Assignee: Nippon Oil Company, Ltd.Inventors: Makoto Sasaki, Katsuhiko Haji
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Patent number: 5511395Abstract: A freely rotatable endless belt has a bottom face that is opposed, in the water, to an ultrasonic oscillator. A carbon fiber fabric is transferred from a supply roller to a hot roller while being given tension by means of a torque motor and a constant speed motor connected to the supply roller and the hot roller, respectively. The carbon fiber fabric moves in contact with the bottom face of the endless belt, whereby endless belt rotates in synchronism with the carbon fiber fabric. Two oblique movement correcting belts are so disposed as to be pressed against both side portions of the endless belt while gripping respective selvages of the carbon fiber fabric. Each of the two oblique movement correcting belts is connected to a variable speed motor via a uni-directional clutch that transmits a driving force only in the direction of transferring the carbon fiber fabric.Type: GrantFiled: November 16, 1994Date of Patent: April 30, 1996Assignees: Ishikawa Prefecture, Nippon Oil Company, Ltd.Inventors: Saburo Hamade, Masahiko Takahiro, Kazuo Morohashi
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Patent number: 5510913Abstract: A head-up display system for a vehicle includes a front windshield, a display, a polarizing member and an optical rotatory film. The display for displaying an image on the front windshield to be viewed by a driver of the vehicle is disposed such that light therefrom is incident on the front windshield at an angle which is substantially equal to Brewster's angle. The polarizing member is disposed between the front windshield and the display for polarizing light from the display. The optical rotatory film serves to rotate the plane of polarization of light polarized by the polarizing member. The optical rotatory film installed on the front windshield includes a liquid crystal high polymer which is in twisted nematic orientation under liquid crystal condition and is in glassy condition at a temperature which is lower than liquid crystal transition point. Thus, double image problem can be eliminated with respect to light having a wide range of wavelengths.Type: GrantFiled: July 20, 1993Date of Patent: April 23, 1996Assignees: Central Glass Company, Limited, Nippon Oil Company, Ltd.Inventors: Chikara Hashimoto, Atsushi Takamatsu, Hiroyuki Itoh, Takehiro Toyooka
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Patent number: 5474697Abstract: An electrorheological fluid comprising an electrically insulating liquid and oxidation-treated carbonaceous particles dispersed therein and an electrorheological fluid comprising an electrically insulating liquid and a carbonaceous particles having a shape anisotropy, 0.02 to 10,000 .mu.m in length, 0.01 to 500 .mu.m in diameter and 2 to 1,000,000 in aspect ratio have a high electrorheological effect, less current passage and no short circuit, though it is a water-free system.Type: GrantFiled: June 29, 1994Date of Patent: December 12, 1995Assignee: Nippon Oil Company, LtdInventors: Makoto Sasaki, Hisatake Sato, Osamu Kato
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Patent number: 5472635Abstract: Provided is a phase plate comprising a light transmitting base, an alignment layer formed on said base, and a film formed on said alignment layer by a liquid crystalline polymer which exhibits a nematic orientation in the state of liquid crystal and assumes a glassy state at a temperature below the liquid crystal transition point of the polymer.Type: GrantFiled: March 28, 1994Date of Patent: December 5, 1995Assignees: Nippon Oil Company, Ltd., Ricoh Company, Ltd.Inventors: Shigeki Iida, Takehiro Toyooka, Hiroyuki Itoh, Yasuyuki Takiguchi, Akihiko Kanemoto, Haruo Iimura
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Patent number: 5460514Abstract: Combustion air is supplied being divided into inner and outer cylinders of a main burner body, and liquid fuel is injected and burnt by a liquid fuel injection nozzle provided in the inner cylinder, wherein a tip end injection hole of the nozzle faces outside of the nozzle through a fore end opening of the inner cylinder. An annular flame piloting baffle plate for the inner cylinder is provided in front of the injection hole of the tip end opening of the inner cylinder, a swirler is provided inside of a tip end portion of the outer cylinder, and an annular flame piloting baffle plate is provided at a tip end opening portion of a cylindrical space formed between the outer and inner cylinders. Due to the foregoing construction, flames of the burner for burning liquid fuel are stabilized and an amount of generated NOx gas is reduced.Type: GrantFiled: January 6, 1994Date of Patent: October 24, 1995Assignees: Nippon Oil Company Ltd., Petroleum Energy Center FoundationInventors: Mashuaki Toyoshima, Masashi Sato, Matsue Sato
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Patent number: 5438090Abstract: A masterbatch composition for thermoplastic resin modification containing a polybutene and an ethylene-.alpha.-olefin copolymer obtained by copolymerizing ethylene with .alpha.-olefin in the presence of specific catalysts and characterized by specific properties, and a method for preparing the composition by kneading and extrusion at a temperature ranging from the maximum peak temperature (Tm) to (Tm-45).degree. C. in accordance with differential scanning calorimetry of the copolymer are disclosed.Masterbatch pellets for thermoplastic resin modification having low surface tackiness can be obtained from the composition.Type: GrantFiled: March 27, 1990Date of Patent: August 1, 1995Assignee: Nippon Oil Company, Ltd.Inventors: Saburo Matsubara, Yoshihiro Goushi