Patents Assigned to Cosmo Oil Co., Ltd.
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Patent number: 5895777Abstract: A petroleum additive having excellent storage stability and heat stability, which comprises an alkaline earth metal salt of aromatic hydroxycarboxylic acid containing a higher aliphatic carboxylic acid, a higher aliphatic amine or a higher aliphatic amide, or a sulfurized mixture thereof. A process for improving storage stability, heat stability and viscosity character of the petroleum additive.Type: GrantFiled: December 6, 1996Date of Patent: April 20, 1999Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Sanae Ueda, Shinji Yamaoka, Jun Imai
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Patent number: 5881358Abstract: A composition for extracting a transition metal which comprises as an active ingredient a cyclic phenol sulfide represented by the following formula (1): ##STR1## wherein X represents a hydrogen atom, a hydrocarbon group, an acyl group, a carboxyalkyl group, or a carbamoylalkyl group; Y represents a hydrocarbon group; Z represents a sulfide group, a sulfinyl group, or a sulfonyl group; and n is an integer of 4 to 8; and a method for extracting a transition metal using the compositionType: GrantFiled: December 24, 1997Date of Patent: March 9, 1999Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Sotaro Miyano, Nobuhiko Iki, Fumitaka Narumi, Naoya Morohashi, Hitoshi Kumagai
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Patent number: 5853679Abstract: A process for removing nitrogen oxide from exhaust is disclosed, comprising contacting exhaust containing nitrogen oxide with an alumina catalyst which contains not more than 0.5% by weight of an alkali metal and/or an alkaline earth metal and has a total pore volume of from 0.48 to 1.2 cm.sup.3 .multidot.g.sup.-1 with 0.26 to 0.6 cm.sup.3 .multidot.g.sup.-1 of the total pore volume being formed of pores of not greater than 80 .ANG. or has a volume of pores formed of pores of not greater than 60 .ANG. of from 0.06 to 0.2 cm.sup.3 .multidot.g.sup.-l and which may have supported thereon tin in an oxidative atmosphere containing excess oxygen in the presence of a hydrocarbon or an oxygen-containing organic compound.Type: GrantFiled: October 17, 1996Date of Patent: December 29, 1998Assignees: Japan as Represented by Director General of Agency of Industrial Science and Technology, Petroleum Energy Center, Cosmo Oil Co., Ltd., Sakai Chemical Industry Co., Ltd.Inventors: Mitsunori Tabata, Masaaki Kawatsuki, Katsumi Miyamoto, Hiroshi Tsuchida, Tomohiro Yoshinari, Kazushi Usui, Fujio Suganuma, Tadao Nakatsuji, Hiromitsu Shimizu, Ritsu Yasukawa, Hideaki Hamada, Takehiko Ito, Yoshiaki Kintaichi, Motoi Sasaki
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Patent number: 5824808Abstract: A cyclic phenol sulfide represented by the following formula (1) is described: ##STR1## wherein X represents a hydrogen atom, a hydrocarbon group, or an acyl group; Y.sub.1 represents a hydrogen atom, a hydrocarbon group, a halogenated hydrocarbon group, --COR.sup.1, --OR.sup.2, --COOR.sup.3, --CN, --CONH.sub.2, --NO.sub.2, --NR.sup.4 R.sup.5, a halogen atom, --SO.sub.4 R.sup.6, or --SO.sub.3 R.sup.7, in which R.sup.11, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, and R.sup.7 each represents a hydrogen atom or a hydrocarbon group; n is an integer of 3 or more; and m is an integer of 1 to 7, provided that the plural m's of the S.sub.m 's are the same or different; the plural X's are the same or different; and the plural Y.sub.1 's are the same or different. A process for producing the cyclic phenol sulfide is also described.Type: GrantFiled: March 11, 1996Date of Patent: October 20, 1998Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Takashi Hori, Hitoshi Kumagai, Mitsuharu Hasegawa, Yoko Sato, Hiroshi Munakata, Yoshihiro Sugawa
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Patent number: 5789639Abstract: A process for manufacturing an alkenyl compound which comprises reacting an alkylbenzene and 1,3-butadiene in the presence of metallic sodium or a combination of metallic sodium and an oxide, a hydroxide, or a salt of potassium, rubidium or an alkaline earth metal, or a mixture of these under a pressure of 1 kPa (gauge) to 30 MPa (gauge). The process can produce alkenyl compound which is an industrially valuable compound as a raw material for the manufacture of naphthalenedicarboxylic acid, a highly useful raw material of polymers, at a high yield using a small amount of metallic sodium.Type: GrantFiled: July 14, 1995Date of Patent: August 4, 1998Assignees: Cosmo Oil Co., Ltd., Petroleum Energy CenterInventor: Takashi Itoh
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Patent number: 5777186Abstract: A process for selectively hydrogenating benzene in a hydrocarbon oil is disclosed. The process comprises reacting the hydrocarbon oil with hydrogen gas in the presence of a hydrogenation catalyst comprising at least one metal in Group VIII of the Periodic Table and an alkaline aqueous layer which contains zinc or a zinc compound. Benzene in hydrocarbon oils can be selectively converted into cyclohexane by the process, while suppressing the hydrogenation reaction of alkyl aromatic compounds which are important high octane materials for gasoline.Type: GrantFiled: October 6, 1997Date of Patent: July 7, 1998Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventor: Toshio Shimizu
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Patent number: 5773536Abstract: A structure of a microporous resin bonded to metal is prepared by a method, comprising, molding a resin composition comprising a polymer alloy consisting of polyether imide and polyphenylene ether and particles of aluminum borate or amorphous silica filler, wherein the particles of aluminum borate and amorphous silica have an aspect ratio of 10 or less and an average diameter of 0.01-100 .mu.m, the aluminum borate having the formula: nAl.sub.2 O.sub.3.mB.sub.2 O.sub.3, wherein n and m individually represent an integer of 1-100, and the amorphous silica having the formula: SiO.sub.2, into a shaped object, treating the molded resin composition with an aqueous alkaline solution to remove the filler, thereby creating micropores within the resin object, and depositing a metal film on a surface of the treated resin object.Type: GrantFiled: March 11, 1997Date of Patent: June 30, 1998Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Takashi Mizoguchi, Masatoshi Iwafune
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Patent number: 5763235Abstract: A microorganism that produces 5-aminolevulinic acid, wherein the microorganism has a 5-aminolevulinic acid dehydratase variant having a reduced inhibitor constant for a 5-aminolevulinic acid dehydratase inhibitor. A microorganism that produces 5-aminolevulinic acid, wherein the microorganism is a photosynthetic bacterium that produces 5-aminolevulinic acid without light irradiation. A process for producing 5-aminolevulinic acid comprising the step of culturing a microorganism that produces 5-aminolevulinic acid in a culture medium under at least one condition selected from the group consisting of (a) less than 1 ppm of dissolved oxygen concentration in the culture medium, (b) from -180 to 50 mV of oxidation-reduction potential in the culture medium, and (c from 5.times.10.sup.-9 to (KrM-2.times.10.sup.-8) (mol of O.sub.2 /ml.multidot.min.cndot.cell) of cellular respiration rate, wherein KrM represents the maximum cellular respiration rate when oxygen is supplied in an excess quantity.Type: GrantFiled: March 7, 1997Date of Patent: June 9, 1998Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Keitaro Watanabe, Seiji Nishikawa, Tohru Tanaka, Yasushi Hotta
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Patent number: 5733837Abstract: A catalyst for catalytic reduction of nitrogen oxides using a hydrocarbon and/or a oxygen-containing organic compound as a reducing agent is disclosed, which comprises a cerium oxide supported on a solid acid carrier.Also, a catalyst for catalytic reduction of nitrogen oxides using a hydrocarbon and/or an oxygen-containing organic compound as a reducing agent is disclosed, which comprises:(a) at least one element selected from the elements of Group Ib, Group IIa, Group IIb, Group IIIa, Group IIIb, Group IVa, Group IVb, Group Va, Group VIa, Group VIIa, and Group VIII in the Periodic Table (hereinafter referred to as the elements belonging to group (a)); and(b) a cerium oxide, supported on a solid acid carrier.Type: GrantFiled: April 5, 1996Date of Patent: March 31, 1998Assignees: Sakai Chemical Industry Co., Ltd., Petroleum Energy Center, Cosmo Oil Co., Ltd.Inventors: Tadao Nakatsuji, Hiromitsu Shimizu, Ritsu Yasukawa, Katsumi Miyamoto, Hiroshi Tsuchida
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Patent number: 5733770Abstract: A microorganism that produces 5-aminolevulinic acid, wherein the microorganism has a 5-aminolevulinic acid dehydratase variant having a reduced inhibitor constant for a 5-aminolevulinic acid dehydratate inhibitor. A microorganism that produces 5-aminolevulinic acid, wherein the microorganism is a photosynthetic bacterium that produces 5-aminolevulinic acid without light irradiation. A progess for producing 5-aminolevulinic acid comprising the step of culturing a microorganism that produces 5-aminolevulinic acid in a culture medium under at least one condition selected from the group consisting of (a) less than 1 ppm of dissolved oxygen concentration in the culture medium, (b) from -180 to 50 mV of oxidation-reduction potential in the culture medium, and (c) from 5.times.10.sup.-9 to (KrM-2.times.10.sup.-8) (mol of O.sub.2 /ml.multidot.min.multidot.cell) of cellular respiration rate, wherein KrM represents the maximum cellular respiration rate when oxygen is supplied in an excess quantity.Type: GrantFiled: December 20, 1995Date of Patent: March 31, 1998Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Keitaro Watanabe, Seiji Nishikawa, Tohru Tanaka, Yasushi Hotta
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Patent number: 5719665Abstract: A method of determining the content of insolubles in oils using (a) a relation for measuring either absorbance or transmittance from the intensity of transmitted light, (b) a calibration curve for determining the content of insolubles on calibration curve in an oil sample of interest from a measured intensity of scattered light as obtained with a standard sample, (c) the first correlationship for determining the first coefficient of quantification for correcting the effects of the color intensity of the oil sample and the content of insolubles in it, and (d) the second correlationship for determining the second coefficient of quantification for correcting the effects of the particle size distribution of the insolubles and an apparatus for determining the content of insolubles in oils including basically a light source, an interference filter, a sample cell, a measuring device for the intensities of scattered and transmitted components from a sample, a computing unit for performing processing operations basedType: GrantFiled: November 9, 1995Date of Patent: February 17, 1998Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventor: Seigo Yamazoe
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Patent number: 5705142Abstract: The present invention disclosed a crystalline aluminosilicate which has the following characteristics:(A) an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio as determined by chemical analysis of from 5 to 11;(B) a unit cell dimension of from 24.45 to 24.55(C) a molar ratio of the Al contained in the zeolite framework to the total A1 contained in the aluminosilicate of from 0.3 to 0.9 calculated by the equations specified in the specification;(D) an alkali metal content, in terms of oxide, of from 0.02 to 1.5% by weight;(E) an X-ray diffraction pattern having peaks characteristic of zeolite Y; and(F) an ignition loss of from 0.5 to 20% by weight; anda process for producing the same, and a catalyst employing the same for the catalytic cracking of a hydrocarbon oil and the said catalyst which contains at least one metal selected from rare earth metals and alkaline earth metals.Type: GrantFiled: November 18, 1996Date of Patent: January 6, 1998Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Masaki Tan-no, Seiichi Harima, Mitsugu Tsujii, Mitsuru Ohi
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Patent number: 5672873Abstract: In a method and an apparatus for determining a content of an aliphatic hydrocarbon insoluble matter in a residual fuel oil, the method includes the steps of: (a) measuring absorbances of a sample solution having an aliphatic hydrocarbon insoluble matter suspended in the sample solution at two spaced wavelengths of light in a wavelength range from 500 nm to 1,000 nm; and (b) performing an operation to determine the content of the aliphatic hydrocarbon insoluble matter in the sample solution by inserting the measured absorbances into the specific correlations. The contents of the insoluble matter in aliphatic hydrocarbons and asphaltene in the residual fuel oil can be determined in a precise and rapid manner even if the oil contains the particles of aromatic hydrocarbons such as toluene.Type: GrantFiled: July 12, 1996Date of Patent: September 30, 1997Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventor: Seigo Yamazoe
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Patent number: 5661111Abstract: A method for improving plant salt-tolerance is described, which comprises treating a plant with an active ingredient comprising at least one compound selected from the group consisting of 5-aminolevulinic acid, a derivative of 5-aminolevulinic acid, a salt of 5-aminolevulinic acid, a salt of derivatives of 5-aminolevulinic acid, and hemins. Furthermore, a salt-tolerant plant is described, wherein the plant is treated with the above-described active ingredient. Moreover, a method for causing recovery of a salt-damaged plant is described, comprising administering the above-described active ingredient to a salt-damaged plant.Type: GrantFiled: November 22, 1995Date of Patent: August 26, 1997Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Hitoshi Kuramochi, Makoto Konnai, Tohru Tanaka, Yasushi Hotta
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Patent number: 5646082Abstract: The present invention disclosed a crystalline aluminosilicate which has the following characteristics:(A) an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio as determined by chemical analysis of from 5 to 11;(B) a unit cell dimension of from 24.45 to 24.55 .ANG.;(C) a molar ratio of the Al contained in the zeolite framework to the total Al contained in the aluminosilicate of from 0.3 to 0.9 calculated by the equations specified in the specification;(D) an alkali metal content, in terms of oxide, of from 0.02 to 1.5% by weight;(E) an X-ray diffraction pattern having peaks characteristic of zeolite Y; and(F) an ignition loss of from 0.5 to 20% by weight; anda process for producing the same, and a catalyst employing the same for the catalytic cracking of a hydrocarbon oil and the said catalyst which contains at least one metal selected from rare earth metals and alkaline earth metals.Type: GrantFiled: June 6, 1995Date of Patent: July 8, 1997Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Masaki Tan-no, Seiichi Harima, Mitsugu Tsujii, Mitsuru Ohi
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Patent number: 5554766Abstract: A process for preparing a water-soluble organic oxide which comprises reacting an oil-soluble organic compound with molecular oxygen in the presence of a water-insoluble sensitizer in an organic solvent phase under irradiation of light to produce a water-soluble organic oxide, and transferring the water-soluble organic oxide to a water phase which forms a layer in contact with said organic solvent phase.Type: GrantFiled: February 15, 1995Date of Patent: September 10, 1996Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventor: Haruhiko Takeya
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Patent number: 5544635Abstract: A spark-ignition engine that has a cylinder and a crank connected to the piston in the cylinder and which converts the reciprocating motion of the piston to rotary motion via the crank, characterized in that said engine further includes:an angle sensor for measuring the crank angle;a combustion sensor for measuring the burned mass fraction of a fuel in the combustion chamber;a computing unit for calculating the ignition timing of the spark-ignition engine on the basis of the measured crank angle and burned mass fraction by the following equation: Y=aX+b(where Y is the ignition timing expressed by the crank angle before top dead center; X is the difference between the crank angle at a reference burned mass fraction of the fuel injected into the cylinder and the crank angle at a burned mass fraction in the progress of combustion; a and b are constants determined by the characteristics of the spark-ignition engine); anda control unit for controlling the ignition timing of the spark ignition engine on the basis oType: GrantFiled: November 9, 1994Date of Patent: August 13, 1996Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Hiroaki Hara, Haruo Komoriya
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Patent number: 5538650Abstract: Disclosed is a process for producing a mixture of sulfurized alkaline earth metal salts of a salicylic acid compound and a phenol which comprises reacting either a mixture of reactants comprising a phenol, a dihydric alcohol, and an alkaline earth metal oxide and/or hydroxide or a mixture of these reactants and water, subsequently distilling off water and the dihydric alcohol, reacting the resulting bottom with carbon dioxide, and then adding a dihydric alcohol and elemental sulfur to the resulting reaction product to conduct sulfurization reaction.Type: GrantFiled: April 17, 1995Date of Patent: July 23, 1996Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Masato Goto, Makoto Nishishita, Yoshihiro Kojima, Sanae Ueda
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Patent number: 5531885Abstract: Disclosed is a process for hydroconverting a heavy hydrocarbon oil in a reactor under high-temperature and high-pressure conditions,wherein said hydroconversion is carried out through using at least three desulfurization catalysts which each contains as active metals transition metals of Group VI and VIII in the Periodic Table supported on an alumina carrier and which have different SI of 40 or higher, 30 or higher and below 40, and lower than 30, respectively,and wherein said at least three catalysts are packed into the reactor in a descending order of SI from the inlet to the outlet of the reactor, with the proportion of the catalyst having SI of 40 or higher is at least 10% by volume, that of the catalyst having SI of 30 or higher and below 40 is at least 20% by volume, and that of the catalyst having SI of lower than 30 is at least 30% by volume.Type: GrantFiled: February 15, 1995Date of Patent: July 2, 1996Assignees: Cosmo Oil Co., Ltd., Cosmo Research InstituteInventors: Yoshihiro Mizutani, Takeshi Tomino, Yasuo Yamamoto, Yukio Shibata, Hatsutaro Yamazaki
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Patent number: 5530047Abstract: A polymer composition for electrical part material comprising, (I) a polymer blend which comprises (A) at least one polymer selected from specific types of polyether imides and polyesters, and (B) at least one polymer selected from specific types of polyphenylene ethers, polyolefins, and polycarbonates, and (II) a copolymer of maleic anhydride and vinyl type compound or (II') an epoxy-modified styrene-type copolymer. The composition has excellent compatibility, heat resistance, mechanical characteristics, platability, moldability, and electric characteristics. It is an ideal material for use as an electrical part material due to its low dielectric constant and low dielectric dissipation factor at high frequency.Type: GrantFiled: April 10, 1995Date of Patent: June 25, 1996Assignees: Cosmo Research Institute, Cosmo Oil Co., Ltd.Inventors: Fumie Watanabe, Takashi Mizoguchi, Masatoshi Iwafune