Patents by Inventor Toshihide Kamata
Toshihide Kamata 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: 9786450Abstract: A membrane switch in which a first conductive part is formed on a first substrate, a second conductive part is formed on a second substrate, and the substrates are layered via a spacer such that the conductive parts face each other with a space therebetween, and an organic material showing piezoelectricity is filled, or disposed in the space such that an air gap is present, are useful for obtaining an output signal corresponding to an applied pressure.Type: GrantFiled: May 7, 2015Date of Patent: October 10, 2017Assignee: AJINOMOTO CO., INC.Inventors: Yoshinori Wada, Hiroyasu Koto, Yuichi Watanabe, Sei Uemura, Manabu Kitazawa, Satoru Ohashi, Toshihide Kamata
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Patent number: 9464167Abstract: Ferroelectric memory elements which contain a poly ?-amino acid which is a copolymer containing a glutamic acid-?-ester unit represented by the formula (I), defined herein, and a glutamic acid-?-ester unit represented by the formula (II), defined herein, in a molar ratio of units of formula (I) to units of formula (II) of 10/90-90/10 are useful as recording elements such as RFID and the like.Type: GrantFiled: November 11, 2013Date of Patent: October 11, 2016Assignee: AJINOMOTO CO., INC.Inventors: Satoru Ohashi, Sei Uemura, Manabu Kitazawa, Toshihide Kamata
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Patent number: 9450174Abstract: Poly(?-amino acid) which contain: (A) a glutamic acid ?-ester unit represented by formula (I): and (B) one or more kinds of units selected from a glutamic acid ?-ester unit represented by formula (II), an alanine unit, a phenylalanine unit and an N?-benzyloxycarbonyllysine unit, represented by formula (III), and a glutamic acid ?-ester unit represented by formula (IV) can be dissolved in various solvents and are useful for preparing piezoelectric elements which exhibit superior piezoelectricity.Type: GrantFiled: August 13, 2014Date of Patent: September 20, 2016Assignee: AJINOMOTO CO., INC.Inventors: Satoru Ohashi, Sei Uemura, Manabu Kitazawa, Toshihide Kamata, Yoshinori Wada
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Publication number: 20150311012Abstract: A membrane switch in which a first conductive part is formed on a first substrate, a second conductive part is formed on a second substrate, and the substrates are layered via a spacer such that the conductive parts face each other with a space therebetween, and an organic material showing piezoelectricity is filled, or disposed in the space such that an air gap is present, are useful for obtaining an output signal corresponding to an applied pressure.Type: ApplicationFiled: May 7, 2015Publication date: October 29, 2015Applicant: AJINOMOTO CO., INC.Inventors: Yoshinori WADA, Hiroyasu Koto, Yuichi Watanabe, Sei Uemura, Manabu Kitazawa, Satoru Ohashi, Toshihide Kamata
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Patent number: 8927054Abstract: Provided are a conductive substrate which can be produced from inexpensive materials at a lower temperature than those for conventional substrates, and a process for producing the conductive substrate. The conductive substrate comprises a substrate (1) and a conductive pattern (5) provided on the substrate (1), wherein the conductive pattern (5), except on a surface and in a vicinity thereof on a side opposite to the substrate side, entirely has a structure comprising a binder (2) and fine aluminum grains (3) dispersed therein, and on the surface and in the vicinity a surface metal aluminum layer (4) is formed in which the fine aluminum grains (3) are spread with a roller to form a conductive junction connecting the fine aluminum grains to each other.Type: GrantFiled: November 18, 2010Date of Patent: January 6, 2015Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Manabu Yoshida, Toshihide Kamata
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Publication number: 20140368083Abstract: Poly(?-amino acid) which contain: (A) a glutamic acid ?-ester unit represented by formula (I): and (B) one or more kinds of units selected from a glutamic acid ?-ester unit represented by formula (II), an alanine unit, a phenylalanine unit and an N?-benzyloxycarbonyllysine unit, represented by formula (III), and a glutamic acid ?-ester unit represented by formula (IV) can be dissolved in various solvents and are useful for preparing piezoelectric elements which exhibit superior piezoelectricity.Type: ApplicationFiled: August 13, 2014Publication date: December 18, 2014Applicant: AJINOMOTO CO., INC.Inventors: Satoru OHASHI, Sei Uemura, Manabu Kitazawa, Toshihide Kamata, Yoshinori Wada
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Publication number: 20140138654Abstract: Ferroelectric memory elements which contain a poly ?-amino acid which is a copolymer containing a glutamic acid-?-ester unit represented by the formula (I), defined herein, and a glutamic acid-?-ester unit represented by the formula (II), defined herein, in a molar ratio of units of formula (I) to units of formula (II) of 10/90-90/10 are useful as recording elements such as RFID and the like.Type: ApplicationFiled: November 11, 2013Publication date: May 22, 2014Applicant: Ajinomoto Co., Inc.Inventors: Satoru OHASHI, Sei UEMURA, Manabu KITAZAWA, Toshihide KAMATA
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Patent number: 8673070Abstract: Disclosed is a process for producing a silicon oxide or silicon oxynitride thin film having a high level of water vapor and oxygen barrier property and a high strength with a higher efficiency by a solution process which is advantageous in productivity. Also disclosed is a thin film that is obtained by the process and is useful, for example, as a protective film for electric elements such as organic EL elements. A solution containing a smectite group silicate layered compound and a silazane compound is coated onto a surface of a substrate by a liquid phase process to form a film. The thin film thus obtained is exposed to ultraviolet light under an oxygen atmosphere to produce a silicon oxide thin film or a silicon oxynitride compound thin film containing the smectite group silicate layered compound. The smectite group silicate compound is a material represented by the following general formula. A1/3BmSi4O10.Type: GrantFiled: August 28, 2009Date of Patent: March 18, 2014Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Sei Uemura, Toshihide Kamata
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Publication number: 20130333738Abstract: An object of the invention is to provide a thermoelectric conversion material that can have a balance between flexibility and high thermoelectric conversion capacity, a thermoelectric conversion element using the material, and a device that uses waste heat of, for example, an electronic apparatus and a vehicle by using the element. Provided is a thermoelectric conversion element that includes a layer constituted by an organic material in which a fine particle of a carbon nanotube is dispersed and which has flexibility, preferably, a high glass transition temperature and low thermal conductivity, and in which a mass ratio of the carbon nanotube to the organic material is 50% by mass to 90% by mass, and a device in which the thermoelectric conversion element is installed to a heat release portion of an apparatus.Type: ApplicationFiled: March 2, 2012Publication date: December 19, 2013Inventors: Kouji Suemori, Toshihide Kamata
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Patent number: 8278561Abstract: A conductive pattern forming film provides a pattern formed on a film substrate having flexibility by pressurizing, under heating, a conductive paste in which powder or fine particles of metal or semiconductor are dispersed and filled. A conductive pattern forming apparatus comprises a sample installation table having a flat placement surface, and a driving body for pressure application which is placed in a manner facing the placement surface and movable, wherein the driving body for pressure application is equipped with a support which is constituted by a flat metal panel having metal spheres along its bottom face.Type: GrantFiled: October 17, 2007Date of Patent: October 2, 2012Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Toshihide Kamata, Manabu Yoshida
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Publication number: 20120222890Abstract: Provided are a conductive substrate which can be produced from inexpensive materials at a lower temperature than those for conventional substrates, and a process for producing the conductive substrate. The conductive substrate comprises a substrate (1) and a conductive pattern (5) provided on the substrate (1), wherein the conductive pattern (5), except on a surface and in a vicinity thereof on a side opposite to the substrate side, entirely has a structure comprising a binder (2) and fine aluminum grains (3) dispersed therein, and on the surface and in the vicinity a surface metal aluminum layer (4) is formed in which the fine aluminum grains (3) are spread with a roller to form a conductive junction connecting the fine aluminum grains to each other.Type: ApplicationFiled: November 18, 2010Publication date: September 6, 2012Applicant: National Institute of Avanced Industrial Science and TechnologyInventors: Manabu Yoshida, Toshihide Kamata
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Publication number: 20110185948Abstract: Disclosed is a process for producing a silicon oxide or silicon oxynitride thin film having a high level of water vapor and oxygen barrier property and a high strength with a higher efficiency by a solution process which is advantageous in productivity. Also disclosed is a thin film that is obtained by the process and is useful, for example, as a protective film for electric elements such as organic EL elements. A solution containing a smectite group silicate layered compound and a silazane compound is coated onto a surface of a substrate by a liquid phase process to form a film. The thin film thus obtained is exposed to ultraviolet light under an oxygen atmosphere to produce a silicon oxide thin film or a silicon oxynitride compound thin film containing the smectite group silicate layered compound. The smectite group silicate compound is a material represented by the following general formula. A1/3BmSi4O10.Type: ApplicationFiled: August 28, 2009Publication date: August 4, 2011Inventors: Sei Uemura, Toshihide Kamata
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Patent number: 7785948Abstract: The present invention provides a thin film transistor having excellent formability and processability, and particularly a thin film transistor using plastics as a substrate; an organic semiconductor as an active layer; and SiO2 thin films formed by coating as a sealing layer and a gate insulating layer, and a process for producing the same. The present invention provides a field-effect type thin film transistor having an active layer of an organic semiconductor, comprising on a plastic substrate, a sealing layer of a SiO2 thin film formed by coating; a gate electrode; a gate insulating layer of a SiO2 thin film formed by coating; gate and drain electrodes; and a semiconductor active layer. The high-quality SiO2 thin film is obtained by using a silicon compound as a starting material and irradiating a coated thin film of the solution of the starting material with light in an oxygen atmosphere.Type: GrantFiled: August 19, 2005Date of Patent: August 31, 2010Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Toshihide Kamata, Takehito Kozasa
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Publication number: 20100140756Abstract: An object of the present invention is to provide a semiconductor thin film device which employs a silicon oxide thin film having an equivalent level of high insulating performance to those currently used in electronic devices, through a low-temperature printing process on a plastic substrate having plasticity or other types of substrates at a temperature equal to or lower than the heat resistant temperature of the substrate, and to provide a method for forming the device. The semiconductor thin film device is formed as follows: a coating film of a silicon compound including a silazane structure or a siloxane structure is formed on a plastic substrate having plasticity; the coating film is converted into a silicon oxide thin film; and the thin film is utilized as part of an insulating layer or a sealing layer.Type: ApplicationFiled: December 4, 2007Publication date: June 10, 2010Applicant: National Institute of Advanced Industrial Science and TechnologyInventors: Kenji Kozasa, Toshihide Kamata
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Publication number: 20100025088Abstract: The present invention forms a conductive pattern using a simple process on a general plastic substrate having flexibility, and also provides a conductive pattern forming film that allows for easy formation of a conductive pattern using an apparatus that performs a simple process of oriented pressurization at low temperature, as well as a method for forming conductive pattern and a conductive pattern forming apparatus for the same. The conductive pattern forming film provides a pattern formed on a film substrate having flexibility by pressurizing, under heating, a conductive paste in which powder or fine particles of metal or semiconductor are dispersed and filled.Type: ApplicationFiled: October 17, 2007Publication date: February 4, 2010Inventors: Toshihide Kamata, Manabu Yoshida
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Publication number: 20090140235Abstract: The present invention provides a thin film transistor having excellent formability and processability, and particularly a thin film transistor using plastics as a substrate; an organic semiconductor as an active layer; and SiO2 thin films formed by coating as a sealing layer and a gate insulating layer, and a process for producing the same. The present invention provides a field-effect type thin film transistor having an active layer of an organic semiconductor, comprising on a plastic substrate, a sealing layer of a SiO2 thin film formed by coating; a gate electrode; a gate insulating layer of a SiO2 thin film formed by coating; gate and drain electrodes; and a semiconductor active layer. The high-quality SiO2 thin film is obtained by using a silicon compound as a starting material and irradiating a coated thin film of the solution of the starting material with light in an oxygen atmosphere.Type: ApplicationFiled: August 19, 2005Publication date: June 4, 2009Applicant: National Institute of Advance Industrial Science and TechnologyInventors: Toshihide Kamata, Takehito Kozasa
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Patent number: 7138682Abstract: A thin-film transistor includes a substrate (10), a gate electrode (20) provided on a portion of the substrate, an insulation layer (30) arranged to cover the gate electrode and the substrate, a source or drain (40) provided on the insulation layer in a region corresponding to a region of the gate electrode, a semiconductor layer (50) arranged to cover the source or drain (40) and the insulation layer, a drain or source (60) provided on the semiconductor in a portion of a region corresponding to a region of the source or drain (40) that overlaps with the gate electrode, and a channel (70) formed between the source or drain (40) and the drain or source (60) and having a length defined by a film thickness of the semiconductor layer (50).Type: GrantFiled: December 27, 2002Date of Patent: November 21, 2006Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Toshihide Kamata, Manabu Yoshida
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Publication number: 20050121674Abstract: A thin-film transistor includes a substrate (10), a gate electrode (20) provided on a portion of the substrate, an insulation layer (30) arranged to cover the gate electrode and the substrate, a source or drain (40) provided on the insulation layer in a region corresponding to a region of the gate electrode, a semiconductor layer (50) arranged to cover the source or drain (40) and the insulation layer, a drain or source (60) provided on the semiconductor in a portion of a region corresponding to a region of the source or drain (40) that overlaps with the gate electrode, and a channel (70) formed between the source or drain (40) and the drain or source (60) and having a length defined by a film thickness of the semiconductor layer (50).Type: ApplicationFiled: December 27, 2002Publication date: June 9, 2005Applicant: NAT. INST. OF ADVANCED INDUSTRIAL SCI. AND TECHInventors: Toshihide Kamata, Manabu Yoshida