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).

  • Patent number: 11189784
    Abstract: 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: Grant
    Filed: February 14, 2019
    Date of Patent: November 30, 2021
    Assignee: ULVAC, INC.
    Inventors: Seungjun Oh, Tadashi Morita, Tatsuhiro Nozue
  • Publication number: 20200381616
    Abstract: 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: Application
    Filed: February 14, 2019
    Publication date: December 3, 2020
    Inventors: Seungjun OH, Tadashi MORITA, Tatsuhiro NOZUE
  • Patent number: 10050265
    Abstract: 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: Grant
    Filed: December 1, 2015
    Date of Patent: August 14, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., ULVAC, INC.
    Inventors: Ryo Omoda, Takanobu Yamada, Haruhisa Nakano, Hirohiko Murakami, Naoki Tsukahara, Tatsuhiro Nozue, Yoshiaki Fukuda, Yuichi Aihara
  • Patent number: 9997770
    Abstract: 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: Grant
    Filed: October 15, 2014
    Date of Patent: June 12, 2018
    Assignee: ULVAC, INC.
    Inventors: Naoki Tsukahara, Yoshiaki Fukuda, Tatsuhiro Nozue, Hirohiko Murakami
  • Patent number: 9882202
    Abstract: 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: Grant
    Filed: October 14, 2011
    Date of Patent: January 30, 2018
    Assignee: ULVAC, INC.
    Inventors: Tatsuhiro Nozue, Hirohiko Murakami
  • Publication number: 20170005312
    Abstract: 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: Application
    Filed: October 15, 2014
    Publication date: January 5, 2017
    Applicant: ULVAC, INC.
    Inventors: Yoshiaki Fukuda, Tatsuhiro Nozue, Naoki Tsukahara, Hirohiko Murakami
  • Publication number: 20160359161
    Abstract: 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: Application
    Filed: October 15, 2014
    Publication date: December 8, 2016
    Applicant: ULVAC, INC.
    Inventors: Tatsuhiro Nozue, Yoshiaki Fukuda, Naoki Tsukahara, Hirohiko Murakami
  • Publication number: 20160285075
    Abstract: 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: Application
    Filed: October 15, 2014
    Publication date: September 29, 2016
    Applicant: ULVAC, INC.
    Inventors: Naoki Tsukahara, Yoshiaki Fukuda, Tatsuhiro Nozue, Hirohiko Murakami
  • Publication number: 20160285135
    Abstract: 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: Application
    Filed: October 15, 2014
    Publication date: September 29, 2016
    Applicant: ULVAC, INC.
    Inventors: Naoki Tsukahara, Yoshiaki Fukuda, Tatsuhiro Nozue, Hirohiko Murakami
  • Publication number: 20160181600
    Abstract: 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: Application
    Filed: December 1, 2015
    Publication date: June 23, 2016
    Inventors: Ryo OMODA, Takanobu YAMADA, Haruhisa NAKANO, Hirohiko MURAKAMI, Naoki TSUKAHARA, Tatsuhiro NOZUE, Yoshiaki FUKUDA, Yuichi AIHARA
  • Publication number: 20130209880
    Abstract: 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: Application
    Filed: October 14, 2011
    Publication date: August 15, 2013
    Applicant: ULVAC, Inc.
    Inventors: Tatsuhiro Nozue, Hirohiko Murakami
  • Patent number: 8471140
    Abstract: 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: Grant
    Filed: August 5, 2008
    Date of Patent: June 25, 2013
    Assignee: Ulvac, Inc.
    Inventors: Takahiro Nakayama, Tatsuhiro Nozue, Hirohiko Murakami
  • Publication number: 20100220274
    Abstract: 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: Application
    Filed: August 5, 2008
    Publication date: September 2, 2010
    Applicant: ULVAC INC.
    Inventors: Takahiro Nakayama, Tatsuhiro Nozue, Hirohiko Murakami
  • Patent number: 6486890
    Abstract: 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: Grant
    Filed: December 17, 1999
    Date of Patent: November 26, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Hiromi Harada, Terumasa Kayashima, Tatsuhiro Nozue
  • Patent number: 6072476
    Abstract: 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: Grant
    Filed: July 9, 1996
    Date of Patent: June 6, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Hiromi Harada, Terumasa Kayashima, Tatsuhiro Nozue
  • Patent number: 5859624
    Abstract: 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: Grant
    Filed: December 1, 1995
    Date of Patent: January 12, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Takashi Matsumoto, Tatsuhiro Nozue, Shigehiro Tomita, Hiromi Harada
  • Patent number: 5845262
    Abstract: 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: Grant
    Filed: July 9, 1996
    Date of Patent: December 1, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Tatsuhiro Nozue, Makoto Kasuya