Patents Assigned to Nippon Oil Company Ltd.
  • Patent number: 6259559
    Abstract: 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: Grant
    Filed: March 25, 1996
    Date of Patent: July 10, 2001
    Assignees: Central Glass Company, Limited, Nippon Oil Company, Ltd.
    Inventors: Kazuya Kobayashi, Takashi Yamate, Motoh Asakura
  • Patent number: 5958286
    Abstract: 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: Grant
    Filed: November 24, 1992
    Date of Patent: September 28, 1999
    Assignee: Nippon Oil Company, Ltd.
    Inventor: Masanobu Kitanaka
  • Patent number: 5858761
    Abstract: 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: Grant
    Filed: September 19, 1996
    Date of Patent: January 12, 1999
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Akira Tsubokura, Hisashi Yoneda, Mikihiro Takaki, Takashi Kiyota
  • Patent number: 5780399
    Abstract: 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: Grant
    Filed: February 12, 1996
    Date of Patent: July 14, 1998
    Assignees: Nippon Zeon Co., Ltd., Harima Chemicals, Inc., Nippon Oil Company, Ltd.
    Inventors: Yoshihide Ishikawa, Shinsuke Hasegawa, Michio Miyamoto, Shizuo Kitahara, Yutaka Shikatani, Jinichi Igarashi
  • Patent number: 5750457
    Abstract: 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: Grant
    Filed: July 31, 1995
    Date of Patent: May 12, 1998
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Kyutae Na, Toshio Okuhara, Makoto Misono
  • Patent number: 5723417
    Abstract: 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: Grant
    Filed: February 12, 1996
    Date of Patent: March 3, 1998
    Assignees: Nippon Zeon Co., Ltd., Harima Chemicals, Inc., Nippon Oil Company, Ltd.
    Inventors: Shizuo Kitahara, Yutaka Shikatani, Junichi Igarashi, Yoshihide Ishikawa, Shinsuke Hasegawa, Michio Miyamoto
  • Patent number: 5705088
    Abstract: 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: Grant
    Filed: February 14, 1996
    Date of Patent: January 6, 1998
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Makoto Sasaki, Yukio Kobayashi, Katsuhiko Haji
  • Patent number: 5702630
    Abstract: 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: Grant
    Filed: March 19, 1997
    Date of Patent: December 30, 1997
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Makoto Sasaki, Hisatake Sato
  • Patent number: 5624890
    Abstract: 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: Grant
    Filed: November 27, 1995
    Date of Patent: April 29, 1997
    Assignees: Nippon Oil Company, Ltd, Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Mineo Kagaya, Kazuo Miyazawa
  • Patent number: 5607839
    Abstract: 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: Grant
    Filed: July 19, 1994
    Date of Patent: March 4, 1997
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Akira Tsubokura, Hisashi Yoneda, Mikihiro Takaki, Takashi Kiyota
  • Patent number: 5543041
    Abstract: 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: Grant
    Filed: July 6, 1994
    Date of Patent: August 6, 1996
    Assignees: Nippon Oil Company, Ltd., Nippon Petroleum Refining Company, Ltd.
    Inventors: Hajime Okazaki, Manabu Kazato, Masaoki Ouchi, Haruki Nagano, Masaru Ushio, Kozo Kamiya
  • Patent number: 5536426
    Abstract: 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: Grant
    Filed: May 18, 1994
    Date of Patent: July 16, 1996
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Makoto Sasaki, Yukio Kobayashi, Katsuhiko Haji
  • Patent number: 5523157
    Abstract: 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: Grant
    Filed: September 19, 1994
    Date of Patent: June 4, 1996
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Makoto Sasaki, Katsuhiko Haji
  • Patent number: 5516445
    Abstract: 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: Grant
    Filed: May 30, 1995
    Date of Patent: May 14, 1996
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Makoto Sasaki, Katsuhiko Haji
  • Patent number: 5511395
    Abstract: 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: Grant
    Filed: November 16, 1994
    Date of Patent: April 30, 1996
    Assignees: Ishikawa Prefecture, Nippon Oil Company, Ltd.
    Inventors: Saburo Hamade, Masahiko Takahiro, Kazuo Morohashi
  • Patent number: 5510913
    Abstract: 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: Grant
    Filed: July 20, 1993
    Date of Patent: April 23, 1996
    Assignees: Central Glass Company, Limited, Nippon Oil Company, Ltd.
    Inventors: Chikara Hashimoto, Atsushi Takamatsu, Hiroyuki Itoh, Takehiro Toyooka
  • Patent number: 5474697
    Abstract: 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: Grant
    Filed: June 29, 1994
    Date of Patent: December 12, 1995
    Assignee: Nippon Oil Company, Ltd
    Inventors: Makoto Sasaki, Hisatake Sato, Osamu Kato
  • Patent number: 5472635
    Abstract: 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: Grant
    Filed: March 28, 1994
    Date of Patent: December 5, 1995
    Assignees: Nippon Oil Company, Ltd., Ricoh Company, Ltd.
    Inventors: Shigeki Iida, Takehiro Toyooka, Hiroyuki Itoh, Yasuyuki Takiguchi, Akihiko Kanemoto, Haruo Iimura
  • Patent number: 5460514
    Abstract: 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: Grant
    Filed: January 6, 1994
    Date of Patent: October 24, 1995
    Assignees: Nippon Oil Company Ltd., Petroleum Energy Center Foundation
    Inventors: Mashuaki Toyoshima, Masashi Sato, Matsue Sato
  • Patent number: 5438090
    Abstract: 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: Grant
    Filed: March 27, 1990
    Date of Patent: August 1, 1995
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Saburo Matsubara, Yoshihiro Goushi