Patents by Inventor Tatsuhiro Nozue
Tatsuhiro Nozue 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: 11189784Abstract: A method includes forming an amorphous magnetic film on a film formation subject by sputtering a target that includes any one selected from a group consisting of Mn3Sn, Mn3Ge, and (Mn1-xFex)Ge as a main component and crystalizing the amorphous magnetic film by heating the amorphous magnetic film. The crystalizing includes heating the amorphous magnetic film to a temperature that is greater than or equal to 225° C. and less than or equal to 400° C.Type: GrantFiled: February 14, 2019Date of Patent: November 30, 2021Assignee: ULVAC, INC.Inventors: Seungjun Oh, Tadashi Morita, Tatsuhiro Nozue
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Publication number: 20200381616Abstract: A method includes forming an amorphous magnetic film on a film formation subject by sputtering a target that includes any one selected from a group consisting of Mn3Sn, Mn3Ge, and (Mn1-xFex)Ge as a main component and crystalizing the amorphous magnetic film by heating the amorphous magnetic film. The crystalizing includes heating the amorphous magnetic film to a temperature that is greater than or equal to 225° C. and less than or equal to 400° C.Type: ApplicationFiled: February 14, 2019Publication date: December 3, 2020Inventors: Seungjun OH, Tadashi MORITA, Tatsuhiro NOZUE
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Patent number: 10050265Abstract: A positive electrode for an alkali metal-sulfur battery, the positive electrode including: a porous conductive material layer including a plurality of nanocarbon structures of a conductive material, wherein the conductive material defines a plurality of pores between the plurality of nanocarbon structures of the conductive material; sulfur, which is contained in the plurality of pores of the porous conductive material layer; and a polymer film disposed directly on at least a portion of the porous conductive material layer.Type: GrantFiled: December 1, 2015Date of Patent: August 14, 2018Assignees: SAMSUNG ELECTRONICS CO., LTD., ULVAC, INC.Inventors: Ryo Omoda, Takanobu Yamada, Haruhisa Nakano, Hirohiko Murakami, Naoki Tsukahara, Tatsuhiro Nozue, Yoshiaki Fukuda, Yuichi Aihara
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Patent number: 9997770Abstract: Provided are a positive electrode for a lithium-sulfur secondary battery capable of surely covering with sulfur a portion of carbon nanotubes near a current collector and capable of supplying an electrolytic solution up to the vicinity of a base end of the carbon nanotubes efficiently even when sulfur expands in volume during discharge, and a method of forming the same. The positive electrode for a lithium-sulfur secondary battery includes: a current collector; a plurality of carbon nanotubes which are grown on a surface of the current collector such that the current collector-surface side serves as a base end and so as to be oriented in a direction perpendicular to the surface of the current collector; and sulfur to cover the surface of each of the carbon nanotubes at a density of the carbon nanotubes of 40 mg/cm3 or less.Type: GrantFiled: October 15, 2014Date of Patent: June 12, 2018Assignee: ULVAC, INC.Inventors: Naoki Tsukahara, Yoshiaki Fukuda, Tatsuhiro Nozue, Hirohiko Murakami
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Patent number: 9882202Abstract: Provided are a positive electrode for a lithium-sulfur secondary battery and a method of forming the same, the positive electrode being capable of maintaining battery characteristics such as a specific capacity and a cycling characteristic while achieving a high rate characteristic in particular when being applied to a lithium-sulfur secondary battery. A positive electrode of a lithium-sulfur secondary battery includes a positive electrode current collector and carbon nanotubes grown on a surface of the positive electrode current collector and oriented in a direction orthogonal to the surface. At least the surface of each of the carbon nanotubes is covered with sulfur with a certain interstice left between neighboring ones of the carbon nanotubes.Type: GrantFiled: October 14, 2011Date of Patent: January 30, 2018Assignee: ULVAC, INC.Inventors: Tatsuhiro Nozue, Hirohiko Murakami
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Publication number: 20170005312Abstract: Provided is a lithium-sulfur secondary battery capable of suppressing diffusion of a polysulfide eluded into an electrolytic solution into a negative electrode and capable of suppressing lowering of a charge-discharge capacity. In the lithium-sulfur secondary battery of this invention, including a positive electrode P containing a positive electrode active material containing sulfur, a negative electrode N containing a negative electrode active material containing lithium, and a separator S disposed between the positive electrode and the negative electrode to hold an electrolytic solution L, a polymer nonwoven fabric F containing a sulfonic group is disposed at least one of between the separator and the positive electrode and between the separator and the negative electrode.Type: ApplicationFiled: October 15, 2014Publication date: January 5, 2017Applicant: ULVAC, INC.Inventors: Yoshiaki Fukuda, Tatsuhiro Nozue, Naoki Tsukahara, Hirohiko Murakami
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Publication number: 20160359161Abstract: Provided is a positive electrode for a lithium-sulfur secondary battery capable of surely covering a portion of carbon nanotubes near a collector with sulfur and having an excellent strength. In a positive electrode for a lithium-sulfur secondary battery including a collector, a plurality of carbon nanotubes grown on a surface of the collector so as to be oriented in a direction perpendicular to the surface of the collector with a base end thereof on a side of the surface of the collector, and sulfur covering a surface of each of the carbon nanotubes, a surface of each of the carbon nanotube is covered with sulfur by melting and diffusing sulfur from a growing end side of the carbon nanotubes, and the density per unit volume of the carbon nanotubes is set such that sulfur is present up to an interface between the collector and the base end.Type: ApplicationFiled: October 15, 2014Publication date: December 8, 2016Applicant: ULVAC, INC.Inventors: Tatsuhiro Nozue, Yoshiaki Fukuda, Naoki Tsukahara, Hirohiko Murakami
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Publication number: 20160285075Abstract: Provided are a positive electrode for a lithium-sulfur secondary battery capable of surely covering with sulfur a portion of carbon nanotubes near a current collector and capable of supplying an electrolytic solution up to the vicinity of a base end of the carbon nanotubes efficiently even when sulfur expands in volume during discharge, and a method of forming the same. The positive electrode for a lithium-sulfur secondary battery includes: a current collector; a plurality of carbon nanotubes which are grown on a surface of the current collector such that the current collector-surface side serves as a base end and so as to be oriented in a direction perpendicular to the surface of the current collector; and sulfur to cover the surface of each of the carbon nanotubes at a density of the carbon nanotubes of 40 mg/cm3 or less.Type: ApplicationFiled: October 15, 2014Publication date: September 29, 2016Applicant: ULVAC, INC.Inventors: Naoki Tsukahara, Yoshiaki Fukuda, Tatsuhiro Nozue, Hirohiko Murakami
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Publication number: 20160285135Abstract: Provided is a lithium-sulfur secondary battery capable of suppressing diffusion of a polysulfide eluted into an electrolyte, into a negative electrode and capable of suppressing lowering of a charge-discharge efficiency. In a lithium-sulfur secondary battery (B) of the invention, having a positive electrode (P) including a positive electrode active material containing sulfur, a negative electrode (N) including a negative electrode active material containing lithium, and a separator (5) which is disposed between the positive electrode and the negative electrode and which allows a lithium ion of an electrolyte (L) to pass therethrough, a cation-exchange membrane (CE) is formed on one of a positive electrode-side surface of the separator and a negative electrode-side surface thereof.Type: ApplicationFiled: October 15, 2014Publication date: September 29, 2016Applicant: ULVAC, INC.Inventors: Naoki Tsukahara, Yoshiaki Fukuda, Tatsuhiro Nozue, Hirohiko Murakami
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Publication number: 20160181600Abstract: A positive electrode for an alkali metal-sulfur battery, the positive electrode including: a porous conductive material layer including a plurality of nanocarbon structures of a conductive material, wherein the conductive material defines a plurality of pores between the plurality of nanocarbon structures of the conductive material; sulfur, which is contained in the plurality of pores of the porous conductive material layer; and a polymer film disposed directly on at least a portion of the porous conductive material layer.Type: ApplicationFiled: December 1, 2015Publication date: June 23, 2016Inventors: Ryo OMODA, Takanobu YAMADA, Haruhisa NAKANO, Hirohiko MURAKAMI, Naoki TSUKAHARA, Tatsuhiro NOZUE, Yoshiaki FUKUDA, Yuichi AIHARA
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Publication number: 20130209880Abstract: Provided are a positive electrode for a lithium-sulfur secondary battery and a method of forming the same, the positive electrode being capable of maintaining battery characteristics such as a specific capacity and a cycling characteristic while achieving a high rate characteristic in particular when being applied to a lithium-sulfur secondary battery. A positive electrode of a lithium-sulfur secondary battery includes a positive electrode current collector and carbon nanotubes grown on a surface of the positive electrode current collector and oriented in a direction orthogonal to the surface. At least the surface of each of the carbon nanotubes is covered with sulfur with a certain interstice left between neighboring ones of the carbon nanotubes.Type: ApplicationFiled: October 14, 2011Publication date: August 15, 2013Applicant: ULVAC, Inc.Inventors: Tatsuhiro Nozue, Hirohiko Murakami
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Patent number: 8471140Abstract: A porous silica precursor composition is herein provided and the precursor composition comprises an organic silane represented by the following chemical formula 1: R1m(R2—O)4-mSi (in the formula, R1 and R2 may be the same or different and each represent an alkyl group, and m is an integer ranging from 0 to 3); water; an alcohol; and a quaternary ammonium compound represented by the following chemical formula 2: R3N(R4)3X (in the formula, R3 and R4 may be the same or different and each represent an alkyl group and X represents a halogen atom). The composition is prepared by a method comprising the step of blending the foregoing components. The porous silica precursor composition is coated on a substrate and then fired to thus form a porous silica film. Also disclosed herein include a semiconductor element, an apparatus for displaying an image and a liquid crystal display, each having the foregoing porous silica film.Type: GrantFiled: August 5, 2008Date of Patent: June 25, 2013Assignee: Ulvac, Inc.Inventors: Takahiro Nakayama, Tatsuhiro Nozue, Hirohiko Murakami
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Publication number: 20100220274Abstract: A porous silica precursor composition is herein provided and the precursor composition comprises an organic silane represented by the following chemical formula 1: R1m(R2—O)4?mSi (in the formula, R1 and R2 may be the same or different and each represent an alkyl group, and m is an integer ranging from 0 to 3); water; an alcohol; and a quaternary ammonium compound represented by the following chemical formula 2: R3N(R4)3X (in the formula, R3 and R4 may be the same or different and each represent an alkyl group and X represents a halogen atom). The composition is prepared by a method comprising the step of blending the foregoing components. The porous silica precursor composition is coated on a substrate and then fired to thus form a porous silica film. Also disclosed herein include a semiconductor element, an apparatus for displaying an image and a liquid crystal display, each having the foregoing porous silica film.Type: ApplicationFiled: August 5, 2008Publication date: September 2, 2010Applicant: ULVAC INC.Inventors: Takahiro Nakayama, Tatsuhiro Nozue, Hirohiko Murakami
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Patent number: 6486890Abstract: An image display device includes a main body having a display unit with a first display screen A and a display unit with a second display screen B and a link 56 for merging the two display screens to one. The two play units are opened and closed at the link so that display screens are folded over each other for carrying like a book, and they are opened in a use mode to permit the recognition of the display image.Type: GrantFiled: December 17, 1999Date of Patent: November 26, 2002Assignee: Hitachi, Ltd.Inventors: Hiromi Harada, Terumasa Kayashima, Tatsuhiro Nozue
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Patent number: 6072476Abstract: An image display device includes a main body having a display unit with a first display screen A and a display unit with a second display screen B and a link 56 for merging the two display screens to one. The two display units are opened and closed at the link so that the display screens are folded over each other for carrying like a book, and they are opened in a use mode to permit the recognition of the display image.Type: GrantFiled: July 9, 1996Date of Patent: June 6, 2000Assignee: Hitachi, Ltd.Inventors: Hiromi Harada, Terumasa Kayashima, Tatsuhiro Nozue
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Patent number: 5859624Abstract: An information display apparatus comprising goggles and a terminal and having a dot density so high as to be capable of reproducing textual information is disclosed, in which the goggles include light sources, a fixed mirror and a rotary mirror arranged in such a manner as to satisfy predetermined conditions, and the data transmitted from the terminal are reproduced as an image.Type: GrantFiled: December 1, 1995Date of Patent: January 12, 1999Assignee: Hitachi, Ltd.Inventors: Takashi Matsumoto, Tatsuhiro Nozue, Shigehiro Tomita, Hiromi Harada
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Patent number: 5845262Abstract: A system for mainly transferring various information of a newspaper, a magazine, an advertisement, and the like by dot data is provided. Data information provided from a newspaper company, publishing companies, and the like is converted into electronic press information via an electronic press producer 20. The electronic press information is dispatched from a center to an information vending machine through a satellite line or a terrestrial line. Dispatched press data is once accumulated to a recording unit in the information vending machine. When it is identified that an information fee has been paid by cash or a prepaid card, desired data in the information accumulated in the recording unit is written into a recording medium such as an IC card or the like of a consumer.Type: GrantFiled: July 9, 1996Date of Patent: December 1, 1998Assignee: Hitachi, Ltd.Inventors: Tatsuhiro Nozue, Makoto Kasuya