Patents by Inventor Takahiro Morishita
Takahiro Morishita 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: 11702344Abstract: A method of producing a porous carbon is provided that can change type of functional groups, amount of functional groups, or ratio of functional groups while inhibiting its pore structure from changing. A method of producing a porous carbon includes: a first step of carbonizing a material containing a carbon source and a template source, to prepare a carbonized product; and a second step of immersing the carbonized product into a template removing solution, to remove a template from the carbonized product, and the method is characterized by changing at least two or more of the following conditions: type of the material, ratio of the carbon source and the template source, size of the template, and type of the template removal solution, to thereby control type, amount, or ratio of functional groups that are present in the porous carbon.Type: GrantFiled: December 15, 2021Date of Patent: July 18, 2023Assignee: TOYO TANSO CO., LTD.Inventors: Mizuho Anzai, Takahiro Morishita, Yoshio Shodai
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Patent number: 11584651Abstract: A porous carbon that has an extremely high specific surface area while being crystalline, and a method of manufacturing the porous carbon are provided. A porous carbon has mesopores 4 and a carbonaceous wall 3 constituting an outer wall of the mesopores 4, wherein the carbonaceous wall 3 has a portion forming a layered structure. The porous carbon is fabricated by mixing a polyamic acid resin 1 as a carbon precursor with magnesium oxide 2 as template particles; heat-treating the mixture in a nitrogen atmosphere at 1000° C. for 1 hour to cause the polyamic acid resin to undergo heat decomposition; washing the resultant sample with a sulfuric acid solution at a concentration of 1 mol/L to dissolve MgO away; and heat-treating the noncrystalline porous carbon in a nitrogen atmosphere at 2500° C.Type: GrantFiled: March 9, 2012Date of Patent: February 21, 2023Assignee: TOYO TANSO CO., LTD.Inventors: Takahiro Morishita, Hironori Orikasa, Makoto Tatsumi, Naoto Ohta, Masaki Okada
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Publication number: 20220127147Abstract: A method of producing a porous carbon is provided that can change type of functional groups, amount of functional groups, or ratio of functional groups while inhibiting its pore structure from changing. A method of producing a porous carbon includes: a first step of carbonizing a material containing a carbon source and a template source, to prepare a carbonized product; and a second step of immersing the carbonized product into a template removing solution, to remove a template from the carbonized product, and the method is characterized by changing at least two or more of the following conditions: type of the material, ratio of the carbon source and the template source, size of the template, and type of the template removal solution, to thereby control type, amount, or ratio of functional groups that are present in the porous carbon.Type: ApplicationFiled: December 15, 2021Publication date: April 28, 2022Inventors: Mizuho ANZAI, Takahiro MORISHITA, Yoshio SHODAI
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Patent number: 11235978Abstract: A method of producing a porous carbon is provided that can change type of functional groups, amount of functional groups, or ratio of functional groups while inhibiting its pore structure from changing. A method of producing a porous carbon includes: a first step of carbonizing a material containing a carbon source and a template source, to prepare a carbonized product; and a second step of immersing the carbonized product into a template removing solution, to remove a template from the carbonized product, and the method is characterized by changing at least two or more of the following conditions: type of the material, ratio of the carbon source and the template source, size of the template, and type of the template removal solution, to thereby control type, amount, or ratio of functional groups that are present in the porous carbon.Type: GrantFiled: July 1, 2019Date of Patent: February 1, 2022Assignee: TOYO TANSO CO., LTD.Inventors: Mizuho Anzai, Takahiro Morishita, Yoshio Shodai
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Publication number: 20210246033Abstract: A method of producing a porous carbon is provided that can change type of functional groups, amount of functional groups, or ratio of functional groups while inhibiting its pore structure from changing. A method of producing a porous carbon includes: a first step of carbonizing a material containing a carbon source and a template source, to prepare a carbonized product; and a second step of immersing the carbonized product into a template removing solution, to remove a template from the carbonized product, and the method is characterized by changing at least two or more of the following conditions: type of the material, ratio of the carbon source and the template source, size of the template, and type of the template removal solution, to thereby control type, amount, or ratio of functional groups that are present in the porous carbon.Type: ApplicationFiled: July 1, 2019Publication date: August 12, 2021Inventors: Mizuho ANZAI, Takahiro MORISHITA, Yoshio SHODAI
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Patent number: 10675611Abstract: Provided are a carbon powder which can provide a catalyst exhibiting high performance and a catalyst. A carbon powder for fuel cell comprising carbon as a main component, which has a ratio (B/A) of an area B of peak 1 to an area A of peak 0 of more than 0 and 0.15 or less, wherein the area A represents an area of peak 0 at a position of 2?=22.5° to 25° as observed by XRD analysis when the carbon powder for fuel cell is subjected to heat treatment at 1800° C. for 1 hour in an inert atmosphere, and the area B represents an area of peak 1 at a position of 2?=26° as observed by XRD analysis when the carbon powder for fuel cell is subjected to heat treatment at 1800° C. for 1 hour in an inert atmosphere.Type: GrantFiled: January 18, 2017Date of Patent: June 9, 2020Assignees: NISSAN MOTOR CO., LTD., TOYO TANSO CO., LTD.Inventors: Takehiko Okui, Hiroyuki Tanaka, Kazuki Arihara, Tetsuya Mashio, Atsushi Ohma, Takahiro Morishita, Yoshio Shodai
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Publication number: 20190083957Abstract: Provided are a carbon powder which can provide a catalyst exhibiting high performance and a catalyst. A carbon powder for fuel cell comprising carbon as a main component, which has a ratio (B/A) of an area B of peak 1 to an area A of peak 0 of more than 0 and 0.15 or less, wherein the area A represents an area of peak 0 at a position of 2?=22.5° to 25° as observed by XRD analysis when the carbon powder for fuel cell is subjected to heat treatment at 1800° C. for 1 hour in an inert atmosphere, and the area B represents an area of peak 1 at a position of 2?=26° as observed by XRD analysis when the carbon powder for fuel cell is subjected to heat treatment at 1800° C. for 1 hour in an inert atmosphere.Type: ApplicationFiled: January 18, 2017Publication date: March 21, 2019Applicants: NISSAN MOTOR CO., LTD., TOYO TANSO CO., LTD.Inventors: Takehiko OKUI, Hiroyuki TANAKA, Kazuki ARIHARA, Tetsuya MASHIO, Atsushi OHMA, Takahiro MORISHITA, Yoshio SHODAI
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Patent number: 10137405Abstract: A porous carbon that can sufficiently adsorb water vapor on a high humidity side is provided. A porous carbon is characterized by having mesopores and micropores and having a water vapor adsorbed amount ratio, as defined by the following expression (1), of 1.8 or higher. It is particularly preferable that the water vapor adsorbed amount ratio as defined by the following expression (1) be 2.0 or higher. It is also preferable that the water vapor adsorbed amount at a relative humidity of 70% be 50 mg/g or greater. Water vapor adsorbed amount ratio=water vapor adsorbed amount at a relative humidity of 90%/water vapor adsorbed amount at a relative humidity of 70%.Type: GrantFiled: June 16, 2014Date of Patent: November 27, 2018Assignee: TOYO TANSO CO., LTD.Inventors: Takanori Kawano, Takahiro Morishita, Hironori Orikasa
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Publication number: 20170021330Abstract: A porous carbon having a high oxidation reaction temperature, a method of manufacturing the porous carbon, and an adsorption/desorption apparatus using the porous carbon are provided. A porous carbon includes mesopores and a carbonaceous wall forming an outer wall of the mesopores, characterized by being composed mainly of hard carbon and having an oxidation reaction temperature of 600° C. or higher. It is desirable that the porous carbon have an average interlayer spacing d(002) of 0.350 nm or greater, as determined by an X-ray diffraction method after heating the porous carbon at 2500° C. or higher for 30 minutes to 60 minutes.Type: ApplicationFiled: February 24, 2015Publication date: January 26, 2017Applicant: TOYO TANSO CO., LTD.Inventors: Takahiro Morishita, Hironori Orikasa, Masahiro Toyoda, Tomoki Thumura
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Publication number: 20160199809Abstract: A porous carbon that can sufficiently adsorb water vapor on a high humidity side is provided. A porous carbon is characterized by having mesopores and micropores and having a water vapor adsorbed amount ratio, as defined by the following expression (1), of 1.8 or higher. It is particularly preferable that the water vapor adsorbed amount ratio as defined by the following expression (1) be 2.0 or higher. It is also preferable that the water vapor adsorbed amount at a relative humidity of 70% be 50 mg/g or greater. Water vapor adsorbed amount ratio=water vapor adsorbed amount at a relative humidity of 90%/water vapor adsorbed amount at a relative humidity of 70%.Type: ApplicationFiled: June 16, 2014Publication date: July 14, 2016Applicant: TOYO TANSO CO., LTD.Inventors: Takanori Kawano, Takahiro Morishita, Hironori Orikasa
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Patent number: 9281135Abstract: A nitrogen-containing carbon porous material, which has a nitrogen content of 0.5 to 30 mass %, and which has a specific surface area of 200 to 3,000 m2/g.Type: GrantFiled: November 26, 2010Date of Patent: March 8, 2016Assignees: National Institute of Advanced Industrial Science and Technology, Toyo Tanso Co., Ltd.Inventors: Yasushi Soneda, Masaya Kodama, Takahiro Morishita
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Publication number: 20160064744Abstract: Object Provided is a catalyst having an excellent durability and being capable of lowering the cost of a fuel cell. Solving Means Disclosed is a catalyst configured to include a support and alloy particles including platinum and a metal component other than platinum supported on the support, wherein the catalyst includes mesopores having a radius of 1 to 10 nm originated from the support, wherein a mode radius of the mesopores is in a range of 2.5 to 10 nm, and wherein the alloy particles have a catalyst function, and at least a portion of the alloy particles is supported inside the mesopores.Type: ApplicationFiled: April 14, 2014Publication date: March 3, 2016Applicants: NISSAN MOTOR CO., LTD., TOYO TANSO CO., LTD.Inventors: Tetsuya MASHIO, Yoshihisa FURUYA, Ken Akizuki, Atsushi OHMA, Takahiro MORISHITA, Yoshio SHODAI
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Patent number: 9248442Abstract: A porous carbon and a method of manufacturing the same are provided, which can inhibit metal particles from being oxidized and can keep the effect obtained by adding the metal particles for a long period of time by allowing the metal particles to disperse sufficiently. The method is characterized by comprising the steps of: mixing a polyamic acid resin varnish 1 as a carbon precursor, magnesium oxide 2 as template particles, and chloroplatinic acid 6 as a metal salt; heat-treating the mixture in a nitrogen atmosphere at 1000° C. for 1 hour to reduce the chloroplatinic acid into platinum and thermally decomposing the polyamic acid resin to prepare a carbon 3 containing the platinum particles 7; and washing the resulting carbon 3 with a sulfuric acid solution added at a concentration of 1 mol/L to completely dissolve MgO away.Type: GrantFiled: June 14, 2010Date of Patent: February 2, 2016Assignee: TOYO TANSO CO., LTD.Inventors: Takahiro Morishita, Yohko Nishi, Tomoyuki Ohkuni
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Publication number: 20150367323Abstract: An adsorbing/desorbing agent including porous carbon is provided that can smoothly adsorb or desorb gases and liquids. An adsorbing/desorbing agent includes a porous carbon having micropores and mesopores and/or macropores, wherein each of the three types of pores has an outer wall made of a carbonaceous wall and the micropores are formed so as to communicate with the mesopores and/or the macropores. The adsorbing/desorbing agent is characterized in that x is within the range 1.0×10?5?x?1.0×10?4, and the relation between x and y satisfy the following expression (1), where x is a relative pressure (P/P0) measured using nitrogen as an adsorptive gas at 77 K and y is a mass transfer coefficient (Ksap): y?1.67×10?1x+2.33×10?6.Type: ApplicationFiled: March 12, 2014Publication date: December 24, 2015Applicant: TOYO TANSO CO., LTD.Inventors: Hironori Orikasa, Takahiro Morishita
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Publication number: 20150344316Abstract: A porous carbon and a method of manufacturing the same are provided, that can remarkably improve the performance by increasing the BET specific surface area even when it contains boron. A porous carbon is characterized by having a C—B—O bonding structure existing in at least a surface thereof and having a BET specific surface area of 300 m2/g or greater as determined from a nitrogen adsorption isotherm at 77K. The porous carbon can be manufactured by a method including the steps of: mixing a boric acid and a magnesium citrate together, to prepare a mixture; heat-treating the mixture in a vacuum atmosphere, a non-oxidizing atmosphere, or a reducing atmosphere, to prepare a heat-treated substance; and removing a template from the heat-treated substance.Type: ApplicationFiled: September 5, 2012Publication date: December 3, 2015Applicant: TOYO TANSO CO., LTD.Inventors: Takahiro MORISHITA, Hironori ORIKASA
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Patent number: 9156694Abstract: A porous carbon that retains a three-dimensional network structure and enables the pore diameters of mesopores and micropores to be controlled easily is provided. A method of manufacturing the porous carbon is also provided. The porous carbon is fabricated by mixing a polyamic acid resin 1 as a carbon precursor with magnesium oxide 2 as template particles, heat-treating the mixture in a nitrogen atmosphere at 1000° C. for 1 hour to cause the polyamic acid resin to undergo heat decomposition, and washing the resultant sample with a sulfuric acid solution at a concentration of 1 mol/L to dissolve MgO away.Type: GrantFiled: March 10, 2010Date of Patent: October 13, 2015Assignee: TOYO TANSO CO., LTD.Inventor: Takahiro Morishita
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Patent number: 8937609Abstract: A detecting section of a touch sensor system detects a hand placing region in accordance with (i) a strength threshold for determining a strength of an electrostatic capacitance signal in a detection region so as to determine whether or not a touch input is carried out by a finger and (ii) a peripheral threshold which is lower than the strength threshold and is set so as to determine strengths of electrostatic capacitance signals in a plurality of peripheral regions surrounding the detection region.Type: GrantFiled: May 28, 2013Date of Patent: January 20, 2015Assignee: Sharp Kabushiki KaishaInventors: Shinichi Yoshida, Takahiro Morishita
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Patent number: 8908982Abstract: The present invention provides an image encoding device that can balance encoding at a high compression ratio and restoration of a high-quality image by decoding in a short processing time. Compression mode determination means 3 determines a compression mode to be one of DPCM and PCM based on target pixel data inputted from a terminal 21 and predicted data calculated by a predetermined method. For the DPCM, DPCM compression means 5 compresses a difference value between the target pixel data and the predicted data to DPCM encoded data having a predetermined DPCM code length. For the PCM, PCM compression means 7 compresses the target pixel data to PCM encoded data having a PCM code length determined by PCM code length determination means 9. The PCM code length determination means 9 calculates the PCM code length for each piece of target pixel data such that a total of post-encoding code lengths becomes an allowable value or less in a unit of predetermined pixel group among the plurality of pixels.Type: GrantFiled: September 26, 2011Date of Patent: December 9, 2014Assignee: Sharp Kabushiki KaishaInventors: Mitsuhisa Ohnishi, Masayuki Yamaguchi, Takahiro Morishita
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Publication number: 20130335883Abstract: A porous carbon material, in which a total pore volume is 1 mL/g or more, and in which a ratio of a mesopore volume to the total pore volume is 50% or more; a method of producing the same; and an electric double-layer capacitor containing the same.Type: ApplicationFiled: March 28, 2013Publication date: December 19, 2013Applicant: TOYO TANSO CO., LTD.Inventors: Yasushi SONEDA, Masaya KODAMA, Takahiro MORISHITA
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Publication number: 20130330504Abstract: A porous carbon that has an extremely high specific surface area while being crystalline, and a method of manufacturing the porous carbon are provided. A porous carbon has mesopores 4 and a carbonaceous wall 3 constituting an outer wall of the mesopores 4, wherein the carbonaceous wall 3 has a portion forming a layered structure. The porous carbon is fabricated by mixing a polyamic acid resin 1 as a carbon precursor with magnesium oxide 2 as template particles; heat-treating the mixture in a nitrogen atmosphere at 1000° C. for 1 hour to cause the polyamic acid resin to undergo heat decomposition; washing the resultant sample with a sulfuric acid solution at a concentration of 1 mol/L to dissolve MgO away; and heat-treating the noncrystalline porous carbon in a nitrogen atmosphere at 2500° C.Type: ApplicationFiled: March 9, 2012Publication date: December 12, 2013Applicant: TOYO TANSO CO., LTD.Inventors: Takahiro Morishita, Hironori Orikasa, Makoto Tatsumi, Naoto Ohta, Masaki Okada