Patents by Inventor Yasushi Hiramatsu
Yasushi Hiramatsu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8110603Abstract: It is intended to provide an organic peracid polymer composition which is stable, odorless and has sufficient water solubility and is suitably used as a bactericide, a bleaching agent and a cleaning agent. By mixing and dissolving an organic acid polymer, hydrogen peroxide and an inorganic acid and maintaining the mixture for a period ranging from 1 hour to 1 month at a temperature ranging from 10 to 80° C., the organic peracid polymer-containing composition containing an organic peracid polymer (2 to 50% by weight) and, in some cases, the hydrogen peroxide (2 to 50% by weight) and the inorganic acid (0.1 to 10% by weight) is obtained.Type: GrantFiled: July 18, 2006Date of Patent: February 7, 2012Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Yasunari Kawabata, Yasushi Hiramatsu
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Publication number: 20110311464Abstract: The present invention relates to a tooth bleaching material containing peroxyglutaric acid and/or peroxypolyacrylic acid as a bleaching ingredient, as well as a method of bleaching teeth which includes the step of applying the tooth bleaching material in the form of a dilute solution or without dilution onto surfaces of discolored teeth. In accordance with the present invention, there is provided a tooth bleaching material for bleaching and removing colored sediments (colored or discolored deposits) on teeth which does not essentially require irradiation with light, and is readily used with a high safety and further suitable as a domestic bleaching material, as well as a tooth bleaching method using the above tooth bleaching material.Type: ApplicationFiled: August 30, 2011Publication date: December 22, 2011Inventors: Yasunari Kawabata, Yasushi Hiramatsu, Hiroshi Kurata
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Publication number: 20100143491Abstract: It is intended to provide an organic peracid polymer composition which is stable, odorless and has sufficient water solubility and is suitably used as a bactericide, a bleaching agent and a cleaning agent. By mixing and dissolving an organic acid polymer, hydrogen peroxide and an inorganic acid and maintaining the mixture for a period ranging from 1 hour to 1 month at a temperature ranging from 10 to 80° C., the organic peracid polymer-containing composition containing an organic peracid polymer (2 to 50% by weight) and, in some cases, the hydrogen peroxide (2 to 50% by weight) and the inorganic acid (0.1 to 10% by weight) is obtained.Type: ApplicationFiled: July 18, 2006Publication date: June 10, 2010Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Yasunari Kawabata, Yasushi Hiramatsu
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Publication number: 20090111878Abstract: The present invention relates to a tooth bleaching material containing peroxyglutaric acid and/or peroxypolyacrylic acid as a bleaching ingredient, as well as a method of bleaching teeth which include the step of applying the tooth bleaching material in the form of a dilute solution or without dilution onto surfaces of discolored teeth. In accordance with the present invention, there are provided a tooth bleaching material for bleaching and removing colored sediments (colored or discolored deposits) on teeth which do not essentially require irradiation with light, and is readily used with a high safety and further suitable as a domestic bleaching material, as well as a tooth bleaching method using the above tooth bleaching material.Type: ApplicationFiled: September 25, 2006Publication date: April 30, 2009Inventors: Yasunari Kawabata, Yasushi Hiramatsu, Hiroshi Kurata
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Patent number: 7468342Abstract: As catalysts for producing aromatic amines by hydrogenating aromatic nitrites, there are disclosed (1) the catalyst comprising a metal catalyst component comprising Ni and/or Co and a specific amount of zirconia as a carrier component, which is prepared by drying, calcining and forming a precipitate produced by adding an aqueous solution containing soluble salts of the metal catalyst component and the carrier component to an aqueous alkali solution; and (2) the catalyst comprising the metal catalyst component and the carrier component, which is prepared by filtering a precipitate produced by adding an aqueous solution containing soluble salts of the metal catalyst component and the carrier component to an aqueous alkali solution; forming the precipitate without drying to obtain a formed product; and subjecting the formed product to drying and then calcining.Type: GrantFiled: May 7, 2002Date of Patent: December 23, 2008Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Yoshinori Kanamori, Shuji Ebata, Kengo Tsukahara, Yasushi Hiramatsu
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Patent number: 7101513Abstract: A fuel supplying apparatus for maintaining a stable supply of a mixed water-methanol solution while preventing water from freezing in a cold climate, and for immediately supplying a mixed water-methanol gas that has a composition which is outside of the high-rate reaction region during the starting/stopping operation of the reformer when the control tends to be unstable. The methanol reforming apparatus that generates a hydrogen-rich gas by reacting a mixed gas of water, methanol and air on a catalyst is supplied with the fuel from a fuel supplying apparatus comprising a mixed water-methanol solution tank wherein the molar ratio of water and methanol used for reforming is controlled to a predetermined value, a mixed water-methanol solution tank wherein the molar ratio of water and methanol is controlled to 4.6 or higher, and a switching means that switches the mixed water-methanol solution tank used as a fuel source according to the conditions of operation of the methanol reforming apparatus.Type: GrantFiled: July 26, 2001Date of Patent: September 5, 2006Assignees: Honda Giken Kogyo Kabushiki Kaisha, Mitsubishi Gas Chemical Co., Inc.Inventors: Takahiro Naka, Hideaki Sumi, Masataka Furuyama, Shoji Isobe, Yasushi Hiramatsu, Mikio Yoneoka
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Patent number: 6926881Abstract: There is disclosed a process for producing a hydrogen-containing gas, which comprises reacting methanol, steam and oxygen in the presence of (1) a catalyst comprising platinum and zinc oxide, wherein the content of the platinum is in the range of 5 to 50% by weight based on the total amount of the platinum and zinc oxide, or (2) a catalyst comprising platinum, zinc oxide and chromium oxide, wherein the atomic ratio of zinc to chromium (zinc/chromium) is in the range of 2 to 30, or (3) a catalyst comprising platinum, zinc oxide and at least one element selected from the group consisting of lead, bismuth and indium.Type: GrantFiled: November 15, 2002Date of Patent: August 9, 2005Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Shigeyuki Hirose, Futoshi Ikoma, Masayuki Katagiri, Koki Takamura, Yasushi Hiramatsu, Mikio Yoneoka
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Patent number: 6916458Abstract: There is disclosed a process for producing a hydrogen-containing gas, which comprises reacting methanol, steam and oxygen in the presence of a catalyst comprising palladium, zinc and at least one metal selected from the group consisting of chromium, gallium, copper, indium, bismuth and platinum.Type: GrantFiled: November 12, 2002Date of Patent: July 12, 2005Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Yasuhiro Kushida, Masayuki Katagiri, Hutoshi Ikoma, Shigeyuki Hirose, Yasushi Hiramatsu, Mikio Yoneoka
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Patent number: 6905998Abstract: In a reforming catalyst apparatus provided with a reforming catalyst for forming a hydrogen rich reformed gas by a reforming reaction of the fuel with water, the catalyst performance can be recovered by heating the catalyst within a temperature ranging from 500° C. to 800° C. while supplying said fuel and air to the catalyst. This method allows recovery of the catalyst performance without demounting the catalyst from the reforming catalyst apparatus and allows providing the reforming catalyst with a long service life.Type: GrantFiled: March 26, 2002Date of Patent: June 14, 2005Assignees: Honda Giken Kogyo Kabushiki Kaisha, Mitsubishi Gas Chemical Co., Inc.Inventors: Takahiro Naka, Osamu Usaka, Shoji Isobe, Yasushi Hiramatsu, Mikio Yoneoka
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Publication number: 20030157019Abstract: There is disclosed a process for producing a hydrogen-containing gas, which comprises reacting methanol, steam and oxygen in the presence of a catalyst comprising palladium, zinc and at least one metal selected from the group consisting of chromium, gallium, copper, indium, bismuth and platinum.Type: ApplicationFiled: November 12, 2002Publication date: August 21, 2003Inventors: Yasuhiro Kushida, Masayuki Katagiri, Hutoshi Ikoma, Shigeyuki Hirose, Yasushi Hiramatsu, Mikio Yoneoka
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Publication number: 20030095919Abstract: There is disclosed a process for producing a hydrogen-containing gas, which comprises reacting methanol, steam and oxygen in the presence of (1) a catalyst comprising platinum and zinc oxide, wherein the content of the platinum is in the range of 5 to 50% by weight based on the total amount of the platinum and zinc oxide, or (2) a catalyst comprising platinum, zinc oxide and chromium oxide, wherein the atomic ratio of zinc to chromium (zinc/chromium) is in the range of 2 to 30, or (3) a catalyst comprising platinum, zinc oxide and at least one element selected from the group consisting of lead, bismuth and indium.Type: ApplicationFiled: November 15, 2002Publication date: May 22, 2003Inventors: Shigeyuki Hirose, Futoshi Ikoma, Masayuki Katagiri, Koki Takamura, Yasushi Hiramatsu, Mikio Yoneoka
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Patent number: 6548034Abstract: In the present invention, carbon monoxide in the hydrogen-containing gas is contacted with oxygen in the presence of a catalyst comprising platinum and at least one metal selected from the group consisting of cobalt, nickel, copper and manganese.Type: GrantFiled: December 13, 2000Date of Patent: April 15, 2003Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Koki Takamura, Yasushi Hiramatsu
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Publication number: 20020187890Abstract: In a reforming catalyst apparatus provided with a reforming catalyst for forming a hydrogen rich reformed gas by a reforming reaction of the fuel with water, the catalyst performance can be recovered by heating the catalyst within a temperature ranging from 500° C. to 800° C. while supplying said fuel and air to the catalyst. This method allows recovery of the catalyst performance without demounting the catalyst from the reforming catalyst apparatus and allows providing the reforming catalyst with a long service life.Type: ApplicationFiled: March 26, 2002Publication date: December 12, 2002Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Takahiro Naka, Osamu Usaka, Shoji Isobe, Yasushi Hiramatsu, Mikio Yoneoka
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Publication number: 20020177735Abstract: As catalysts for producing aromatic amines by hydrogenating aromatic nitrites, there are disclosed (1) the catalyst comprising a metal catalyst component comprising Ni and/or Co and a specific amount of zirconia as a carrier component, which is prepared by drying, calcining and forming a precipitate produced by adding an aqueous solution containing soluble salts of the metal catalyst component and the carrier component to an aqueous alkali solution; and (2) the catalyst comprising the metal catalyst component and the carrier component, which is prepared by filtering a precipitate produced by adding an aqueous solution containing soluble salts of the metal catalyst component and the carrier component to an aqueous alkali solution; forming the precipitate without drying to obtain a formed product; and subjecting the formed product to drying and then calcining.Type: ApplicationFiled: May 7, 2002Publication date: November 28, 2002Inventors: Yoshinori Kanamori, Shuji Ebata, Kengo Tsukahara, Yasushi Hiramatsu
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Publication number: 20020030175Abstract: A fuel supplying apparatus for maintaining a stable supply of a mixed water-methanol solution while preventing water from freezing in a cold climate, and for immediately supplying a mixed water-methanol gas that has a composition which is outside of the high-rate reaction region during the starting/stopping operation of the reformer when the control tends to be unstable. The methanol reforming apparatus that generates a hydrogen-rich gas by reacting a mixed gas of water, methanol and air on a catalyst is supplied with the fuel from a fuel supplying apparatus comprising a mixed water-methanol solution tank wherein the molar ratio of water and methanol used for reforming is controlled to a predetermined value, a mixed water-methanol solution tank wherein the molar ratio of water and methanol is controlled to 4.6 or higher, and a switching means that switches the mixed water-methanol solution tank used as a fuel source according to the conditions of operation of the methanol reforming apparatus.Type: ApplicationFiled: July 26, 2001Publication date: March 14, 2002Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Takahiro Naka, Hideaki Sumi, Masataka Furuyama, Shoji Isobe, Yasushi Hiramatsu, Mikio Yoneoka
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Patent number: 6290877Abstract: The present invention presents: (1) a starting method that is capable of quickly switching to the reforming process after warming up a catalyst; (2) a fuel supplying apparatus that is capable of maintaining a stable supply of a mixed water-methanol solution while preventing water from freezing in a cold climate, and is also capable of immediately supplying a mixed water-methanol gas that has a composition which is outside of the high-rate reaction region during the starting/stopping operation of the reformer when the control tends to be unstable; (3) a method to quickly cool down a catalyst layer without causing thermal runaway when stopping the operation of the methanol reforming apparatus; and (4) a method to quickly cool down the catalyst layer while preventing thermal runaway from occurring and removing residual fuel when stopping the operation of the methanol reforming apparatus.Type: GrantFiled: November 30, 2000Date of Patent: September 18, 2001Assignees: Honda Giken Kogyo Kabushiki Kaisha, Mitsubishi Gas Chemical Co., Inc.Inventors: Takahiro Naka, Hideaki Sumi, Masataka Furuyama, Shoji Isobe, Yasushi Hiramatsu, Mikio Yoneoka
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Publication number: 20010004453Abstract: There are disclosed a process for effectively reducing a carbon monoxide concentration in a hydrogen-containing gas obtained by reforming methanol or the like, and a catalyst used therefor. In the present invention, carbon monoxide in the hydrogen-containing gas is contacted with oxygen in the presence of a catalyst comprising platinum and at least one metal selected from the group consisting of cobalt, nickel, copper and manganese.Type: ApplicationFiled: December 13, 2000Publication date: June 21, 2001Inventors: Koki Takamura, Yasushi Hiramatsu
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Publication number: 20010002043Abstract: The present invention presents: (1) a starting method that is capable of quickly switching to the reforming process after warming up a catalyst; (2) a fuel supplying apparatus that is capable of maintaining a stable supply of a mixed water-methanol solution while preventing water from freezing in a cold climate, and is also capable of immediately supplying a mixed water-methanol gas that has a composition which is outside of the high-rate reaction region during the starting/stopping operation of the reformer when the control tends to be unstable; (3) a method to quickly cool down a catalyst layer without causing thermal runaway when stopping the operation of the methanol reforming apparatus; and (4) a method to quickly cool down the catalyst layer while preventing thermal runaway from occurring and removing residual fuel when stopping the operation of the methanol reforming apparatus.Type: ApplicationFiled: November 30, 2000Publication date: May 31, 2001Inventors: Takahiro Naka, Hideaki Sumi, Masataka Furuyama, Shoji Isobe, Yasushi Hiramatsu, Mikio Yoneoka
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Patent number: 5512599Abstract: A process for the production of methanol, which exhibits high energy efficiency and permits the production of methanol with apparatus of which the production capacity can be increased, the process comprising a primary reforming step of catalytically reacting a hydrocarbon with steam, a partial oxidation step of partially oxidizing a gas fed from the above primary reforming reaction step by adding an oxygen gas, a secondary reforming step of catalytically reacting a gas fed from the above partial oxidation step with steam, a step of using a high-temperature gas obtained from the secondary reforming reaction step, as a heat source for the primary reforming step, a synthesis gas preparation step of separating steam from the gas used as the above heat source to prepare a synthesis gas, and a methanol synthesis step of introducing the synthesis gas into a methanol synthesis reactor using a fluid catalyst, wherein:the molar ratio of hydrogen to carbon oxides in the feed gas to into the methanol synthesis reactor, rType: GrantFiled: October 27, 1994Date of Patent: April 30, 1996Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Yasushi Hiramatsu, Osamu Hashimoto, Shoji Uematsu, Toshio Koseki
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Patent number: 5399334Abstract: This invention provides a process for producing hydrogen peroxide through catalytic reaction of oxygen with hydrogen in an aqueous medium in the presence of a platinum group metal catalyst, in which an organic solvent having only limited solubility with water and less hydrogen peroxide-dissolving ability compared to that of water is caused to be concurrently present in the reactor, and oxygen and hydrogen are catalytically reacted in an aqueous medium in the presence of a water- and organic solvent-insoluble, hydrophilic platinum group metal catalyst, under a low reaction pressure, to form high concentration aqueous hydrogen peroxide solution within a short time.Type: GrantFiled: May 6, 1994Date of Patent: March 21, 1995Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Michiya Kawakami, Yukio Ishiuchi, Hiromitsu Nagashima, Takeshi Tomita, Yasushi Hiramatsu