Patents Assigned to Nippon Oil Company, Limited
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Patent number: 5185091Abstract: A greasy oil and fat composition for food processing machines is prepared by mixing a fatty acid ester of polyglycerol, oil and fat for food and glycerol, melting the mixture by heating and kneading the mixture.The greasy oil and fat composition is safe for food sanitation, has excellent oxidation stability and lubricating properties and is favorably utilized as lubricant for food processing machines.Type: GrantFiled: November 8, 1991Date of Patent: February 9, 1993Assignee: Nippon Oil Company LimitedInventors: Ryoji Ogake, Mitsuo Okada, Hiroyuki Takashima, Teruo Shimizu, Narihito Yamamoto, Hiroyuki Uenoyama
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Patent number: 5181979Abstract: A carbon/carbon composite is prepared by mixing 100 parts of a carbonaceous pitch with 1-45 parts by weight of at least one aromatic compound containing at least one functional group selected from nitro and hydroxyl groups, then impregnating a bundle of carbon fibers with the resulting mixture, thereafter carbonizing the thus-impregnated carbon fiber bundle under pressure or under pressing, and if necessary, further carbonizing the thus-carbonized carbon fiber bundle at atmospheric pressure.Type: GrantFiled: April 8, 1991Date of Patent: January 26, 1993Assignee: Nippon Oil Company, LimitedInventors: Seiichi Uemura, Yoshio Sohda, Osamu Kato, Takefumi Kouno, Tsutomu Kihara
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Patent number: 5172733Abstract: A method and apparatus for weaving a thick fabric. The method comprises the steps of providing a plurality of vertically stacked layers of textile weave, and weaving a set of wefts into the layers of textile weave. This weaving step, in turn, includes the steps of, for each of the plurality of layers, (i) forming a warp shed from the textile weave of the layer, and (ii) inserting one of the wefts into the formed warp shed. This weaving step is repeated a multitude of times to form the thick fabric. Each of the layers of textile weave forms a cloth fell; and the method of this invention further includes the step of vertically moving the layers of textile weave to position the cloth fell of each of the layers at a standard pre-selected weft inserting position when one of the wefts is inserted into the warp shed formed in that layer.Type: GrantFiled: August 7, 1991Date of Patent: December 22, 1992Assignee: Nippon Oil Company, LimitedInventors: Kazuo Morohashi, Hiroshi Matsuyama
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Patent number: 5158116Abstract: A beating apparatus for a thick fabric, comprising a reed supported for advancing and retracting movement, and including a reed frame and a plurality of dents supported by the reed frame for movement toward and away from each other. The beating apparatus also comprises a mechanism engaging the dents to move the dents towards and away from each other, thereby to decrease and increase spacing between the dents, in correlation with advancing and retracting movement, respectively, of the reed.Type: GrantFiled: August 7, 1991Date of Patent: October 27, 1992Assignee: Nippon Oil Company, LimitedInventors: Morohashi Kazuo, Matsuyama Hiroshi
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Patent number: 5147682Abstract: Disclosed herein is a method of orienting a liquid crystal polymer which comprises coating and drying a solution of a polymeric compound showing a thermotropic liquid crystal property on the surface of a plastic substrate applied with a rubbing treatment, and subjecting to a heat-treatment at a temperature that the liquid crystal polymer exhibits a liquid crystal phase.Type: GrantFiled: June 4, 1990Date of Patent: September 15, 1992Assignees: Ricoh Company, Ltd., Nippon Oil Company, LimitedInventors: Yasuyuki Takiguchi, Shigeki Iida, Takehiro Toyooka
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Patent number: 5132147Abstract: A highly orientated, liquid crystalline polymer having a light controlling function and suitable for use in the optoelectronic field is prepared by applying a solution of a polymer which exhibits a thermotropic liquid crystallinity onto a stretched polymer film, drying the applied solution, and thereafter heat-treating the thus-coated film at a temperature at which said liquid crystalline polymer exhibits a liquid crystal phase, for a time sufficient for the molecules of the liquid crystalline polymer to be orientated.Type: GrantFiled: June 6, 1990Date of Patent: July 21, 1992Assignee: Nippon Oil Company, LimitedInventors: Yasuyuki Takiguchi, Shigeki Iida, Takehiro Toyooka
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Patent number: 5118938Abstract: Provided is a Rydberg atom impact type ion source in a mass spectrometric apparatus wherein gaseous sample molecule is impinged on Rydberg atom to ionize the sample and thus-ionized sample is subjected to mass spectrometric analysis, said ion source being characterized in that a needle rod-like grid is used in a Rydberg atom generating portion of an ion source block.Type: GrantFiled: December 20, 1990Date of Patent: June 2, 1992Assignees: Nippon Oil Company, Limited, Tamotsu KondowInventors: Tamotsu Kondow, Takashi Nagata, Yutaka Yamamoto
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Patent number: 5116708Abstract: A hole transporting material is constituted by a compound represented by the following general formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5, which may be the same or different, are each independently hydrogen or a hydrocarbon residue having 1 to 20 carbon atoms; Ar.sup.1 and Ar.sup.2 are each independently a divalent hydrocarbon residue; l is an integer of 0 or more; m is an integer of 1 or more; and n is an integer of 2 or more.Type: GrantFiled: December 8, 1989Date of Patent: May 26, 1992Assignee: Nippon Oil Company, LimitedInventors: Yutaka Shikatani, Naoki Kataoka, Nobuyuki Kuroda, Kazuo Matsuura
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Patent number: 5114635Abstract: A carbon/carbon composites is produced by impregnating a tow of carbon filaments with a carbonaceous pitch, placing the impregnated tow in an open container, then subjecting it to a heat treatment under hot isostatic pressing.Type: GrantFiled: December 28, 1988Date of Patent: May 19, 1992Assignees: Kawasaki Heavy Industries, Ltd., Nippon Oil Company, LimitedInventors: Yoshio Sohda, Yasuzi Ido, Toshinori Nakamura, Takeshi Suemitsu
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Patent number: 5093156Abstract: A carbon material having oxidation resistance is prepared by forming a fi coating constituted mainly by carbon on the surface of a carbon/carbon composite by chemical vapor deposition, then forming on said first coating a second coating of a ceramic or both a ceramic and carbon by chemical vapor deposition, and changing at least one of thermal physical properties or mechanical physical properties of carbon in said first coating continuously or step-wise.Type: GrantFiled: July 26, 1990Date of Patent: March 3, 1992Assignees: Nippon Oil Company, Limited, Japan as represented by Director-General, National Aerospace LaboratoryInventors: Seiichi Uemura, Yoshio Sohda, Yasuji Ido, Yukinori Kude, Takefumi Kohno, Toshio Hirai, Makoto Sasaki, Masayuki Niino
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Patent number: 5081221Abstract: Provided is a novel chiral smectic C liquid crystalline polyester consisting essentially of structural units (A), (B) and (C) of the following formulae: ##STR1## which is optically active and wherein R represents an alkyl group having 1 to 3 carbon atoms, and ##STR2## wherein n represents an integer of 2 to 10.Type: GrantFiled: September 6, 1988Date of Patent: January 14, 1992Assignee: Nippon Oil Company, LimitedInventor: Junji Watanabe
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Patent number: 5064697Abstract: Disclosed herein is a substrate with a liquid crystal polymeric thin film comprising a substrate, an orientation film formed on said substrate and a thermotropic liquid crystal polymeric thin film formed on said orientation film, in which the orientation film comprises a polyimide having a glass transition point of higher than 300.degree. C. obtained by cyclizing a polyamic acid or its derivative coated on said substrate and applying a rubbing treatment.Type: GrantFiled: June 4, 1990Date of Patent: November 12, 1991Assignees: Ricoh Company, Ltd., Nippon Oil Company, LimitedInventors: Yasuyuki Takiguchi, Akihiko Kanemoto, Shigeki Iida, Takehiro Toyooka
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Patent number: 5061413Abstract: A pitch-based carbon fiber having a high strength is produced by (a) treating a heavy oil at a temperature of 370.degree. to 480.degree. C. and a pressure of 2 to 50 kg/cm.sup.2 ; (b) separating and removing insoluble solids from the heat-treated oil so that the insoluble solids content is not higher than 50 ppm; (c) subjecting the oil to thin film distillation at a temperature of 250.degree. to 450.degree. C., a pressure of not higher than 100 mm Hg and a film thickness of not larger than 5 mm; (d) heat-treating the resulting pitch at a temperature of 340.degree. to 450.degree. C. while passing an inert gas at atmospheric or reduced pressure to obtain an optically anisotropic pitch having a softening point of 260.degree. to 300.degree. C.Type: GrantFiled: April 27, 1990Date of Patent: October 29, 1991Assignee: Nippon Oil Company, LimitedInventors: Seiichi Uemura, Hiroaki Takashima, Osamu Kato
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Patent number: 5057254Abstract: A carbon/carbon composite is produced by impregnating a primary-formed product consisting essentially of carbon fibers and a carbonized or graphitized matrix with a carboneceous pitch, heat-treating the thus-impregnated primary-formed product under hot isostatic pressing and carbonizing or graphitizing the thus heat-treated primary-formed product.Type: GrantFiled: March 30, 1989Date of Patent: October 15, 1991Assignees: Nippon Oil Company, Limited, Kawasaki Heavy Industries, Ltd.Inventors: Yoshio Sohda, Yasuji Ido, Toshinori Nakamura, Takeshi Suemitsu
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Patent number: 5045356Abstract: A carbon/carbon composite having oxidation resistance is produced by filling the voids of a carbon/carbon composite comprising 10-70% by volume of carbon fibers and 5-90% by volume of a carbonaceous matrix and having a void percentage of 10-55%, with at least one of carbon and a ceramic by chemical vapor infiltration and then coating the deposit surface with a ceramic or both ceramic and carbon by chemical vapor deposition.Type: GrantFiled: March 29, 1989Date of Patent: September 3, 1991Assignees: Nippon Oil Company, Limited, Toshio Hirai, Makoto Sasaki, Japan as represented by the Director-General National, Aerospace LaboratoryInventors: Seiichi Uemura, Yoshio Sohda, Yasuji Ido, Toshio Hirai, Makoto Sasaki, Masayuki Niino
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Optical filter employing a copolyglutamate having thermotropic cholesteric liquid crystal properties
Patent number: 5037186Abstract: An optical filter consisting essentially of a glutamate copolymer having thermotropic cholesteric liquid crystal properties and represented by the general formula: ##STR1## wherein R.sub.1 is an alkyl group, a cycloalkyl group, an aryl group or an arylalkyl group having 10 or less carbon atoms, and R.sub.2 an alkyl group, a cycloalkyl group, an aryl group or an arylalkyl group having 6 to 30 carbon atoms, provided that R.sub.1 and R.sub.2 are different from each other; m and n are numbers satisfying the following relationships 50.ltoreq.m+n.ltoreq.2000 and m/n=80 to 10/20 to 90.Type: GrantFiled: February 2, 1989Date of Patent: August 6, 1991Assignee: Nippon Oil Company, LimitedInventors: Hiroyuki Itoh, Shingo Orii, Tetsuo Satoh -
Patent number: 5013802Abstract: A process for preparing an ethylene polymer by a two-stage polymerization of ethylene or ethylene and an .alpha.-olefin in an inert hydrocarbon at 50.degree.-100.degree. C. using a coordination polymerization catalyst containing a solid component and an organoaluminum compound, said solid component containing a transition metal compound, which process comprises:(a) in a first stage, producing 10-90% by weight based on the total polymer quantity of a polymer having a melt index in the range of 0.0001 to 0.5 g/10 min as measured according to ASTM D 1238-73, Condition E, using as said solid component a solid product obtained by supporting chromium trioxide or a compound which on calcining forms chromium oxide at least partially, on an inorganic oxide carrier followed by calcining, and using as said organoaluminum compound a compound of the general formula ##STR1## wherein R is a hydrocarbon radical having 1 to 18 carbon atoms and n is 2.ltoreq.n.ltoreq.Type: GrantFiled: October 25, 1989Date of Patent: May 7, 1991Assignee: Nippon Oil Company, LimitedInventors: Yoshio Tajima, Kazutosi Nomiyama, Yoshinori Nishikitani, Nobuyuki Kuroda, Kazuo Matsuura
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Patent number: 5006633Abstract: An electroactive polymer is obtained by doping a copolymer represented by the following general formula (I): ##STR1## wherein R.sup.1 is hydrogen or a hydrocarbon residue having 1 to 20 carbon atoms; R.sup.2 is hydrogen, a hydrocarbon residue having 1 to 20 carbon atoms, furyl, pyridyl, nitrophenyl, chlorophenyl, or methoxyphenyl; l is an integer not smaller than 2; m is an integer not smaller than 1; and n is an integer not smaller than 2.Type: GrantFiled: August 18, 1989Date of Patent: April 9, 1991Assignee: Nippon Oil Company, LimitedInventors: Yutaka Shikatani, Naoki Kataoka, Yoshiyuki Shimo, Nobuyuki Kuroda, Kazuo Matsuura
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Patent number: 4999416Abstract: Provided is a wholly aromatic polyester superior in melt processability and tenacity which consists essentially of the following structural units (A), (B) and (C) and wherein 0.2 to 40 mole % of the total of said units are of ortho configuration; ##STR1## where Ar.sup.1 and Ar.sup.2 each represent a divalent aromatic hydrocarbon group having 6 to 20 carbon atoms, the hydrogen atoms of said aromatic hydrocarbon group may be substituted with a halogen atom, an alkyl or alkoxy group having 1 to 4 carbon atoms, or phenyl; Z is ##STR2## --O--, or --SO.sub.2 --; m is 0 or 1, at least 60 mole % of Ar.sup.1 being constituted by a group selected from 1,4-phenylene, substituted 1,4-phenylenes, naphthyl and 4,4'-biphenyl.Type: GrantFiled: January 19, 1990Date of Patent: March 12, 1991Assignee: Nippon Oil Company, LimitedInventors: Tadahiro Kaminade, Shigeki Iida, Tomohiro Toya, Hajime Hara
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Patent number: 4972022Abstract: A rubber composition having excellent cut resistance and chipping resistance comprises 1-30 parts by weight of a particular resin obtained by reacting a particular hydroxyl group-containing cyclopentadiene resin with a compound selected from polyisocyanate and/or polybasic acid or its anhydride or ester at a particular equivalent ratio, based on 100 parts by weight of rubber.Type: GrantFiled: July 22, 1988Date of Patent: November 20, 1990Assignees: Bridgestone Corporation, Nippon Oil Company LimitedInventors: Hitoshi Kondo, Makoto Sasaki, Yukio Kobayashi