Patents by Inventor Tatsuya Miyajima

Tatsuya Miyajima 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).

  • Publication number: 20210234182
    Abstract: To provide an ion-exchange membrane that, when being used in a redox flow battery, provides excellent current efficiency and can suppress reduction in voltage efficiency. The ion-exchange membrane contains a fluorinated polymer having sulfonic acid-type functional groups and is characterized in that the difference (D?Dc) between the distance D between ion clusters measured by the small angle X-ray scattering method, and the diameter Dc of an ion cluster is larger than 0 and at most 0.50 nm.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 29, 2021
    Applicant: AGC Inc.
    Inventors: Kosuke SUMIKURA, Shintaro HAYABE, Tatsuya MIYAJIMA, Takuo NISHIO
  • Publication number: 20210017347
    Abstract: To provide an ion exchange membrane which is excellent in dimensional stability in an in-plane direction when immersed in an electrolytic solution, and a method for producing a dry ion exchange membrane. The ion exchange membrane according to the present invention is an ion exchange membrane containing a fluorinated polymer, wherein in a case where by Raman spectroscopy, polarized light orthogonal to the thickness direction of the ion exchange membrane is irradiated to obtain a spectrum chart, whereby the ratio of the peak area a2 of Raman shift 680 to 760 cm?1 to the peak area al of Raman shift 1,025 to 1,095 cm?1 is taken as A1, and by Raman spectroscopy, to a cross section in the thickness direction of the ion exchange membrane, polarized light parallel with the thickness direction is irradiated to obtain a spectrum chart, whereby the ratio of the peak area b2 of Raman shift 920 to 1,025 cm?1 to the peak area b1 of Raman shift 1,025 to 1,095 cm?1 is taken as B1, B1/A1 is at least 1.05.
    Type: Application
    Filed: October 5, 2020
    Publication date: January 21, 2021
    Applicant: AGC Inc.
    Inventors: Shintaro HAYABE, Osamu HOMMA, Yasushi YAMAKI, Tatsuya MIYAJIMA, Takuo NISHIO
  • Publication number: 20200284708
    Abstract: A test method for characterizing the mechanical properties including the surface adhesion energy ? on the basis of the experimentally derived P-A relationship, where P means the indentation load under the penetration depth h of an indenter pressed onto a test specimen with surface adhesion, and A means the contact area of indentation at the contact radius a under the applied load of P. This test method enables the implementation for quantitatively as well as simultaneously characterizing the adhesion energy as well as the various mechanical properties (elastic/elastoplastic/viscoelastic properties) of soft materials.
    Type: Application
    Filed: November 15, 2018
    Publication date: September 10, 2020
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Tatsuya MIYAJIMA, Mototsugu SAKAI
  • Publication number: 20200266472
    Abstract: The present invention provides an ion exchange membrane can improve the current efficiency of a redox flow battery without a drop in voltage efficiency, when used in the redox flow battery. The ion exchange membrane of the present invention is an ion exchange membrane comprising a fluorinated polymer having sulfonic acid functional groups, wherein the difference (D?Dc) between the distance D between ionic clusters and the diameter Dc of ionic clusters as measured by the small angle X-ray scattering is 0.60 nm or more, and the ion exchange capacity of the fluorinated polymer is 0.95 meq/gram dry resin or more.
    Type: Application
    Filed: May 4, 2020
    Publication date: August 20, 2020
    Applicant: AGC Inc.
    Inventors: Yasushi YAMAKI, Kosuke SUMIKURA, Tatsuya MIYAJIMA, Takuo NISHIO
  • Publication number: 20200216629
    Abstract: Provided is a composite body where ceramic crystals are thinly and uniformly coated onto a base material containing a hydrophilic polymer. The composite body has a base material containing a hydrophilic polymer, and a ceramic layer which is coated onto at least a portion of a surface of the base material, and the ceramic layer contains crystals having a laminated structure. The ceramic layer may contain calcium phosphate. A thickness of the ceramic layer is 0.3 nm to 50 nm. The composite body is produced through a step of mixing and stirring a dispersion liquid in which the base material is dispersed, a first solution containing calcium ions, and a second solution containing phosphate ions.
    Type: Application
    Filed: January 29, 2018
    Publication date: July 9, 2020
    Inventors: Fukue NAGATA, Tatsuya MIYAJIMA, Katsuya KATO
  • Patent number: 10663385
    Abstract: A measurement apparatus for carrying out an indentation creep test on a specimen, including a measurement control apparatus that includes a load measurement device, a constant-load compression device configured to compress a tip of a transparent indenter to a surface of the specimen, and an image capturing device configured to optically capture an image including a contact area portion which is a part of the specimen to which the load is applied by the constant-load compression device. The apparatus also includes an information processing apparatus that includes an image analysis unit configured to analyze a contact area, and a physical property value calculation unit. The physical property value calculation unit conducts linear regression with respect to a plot of a logarithmic value of the contact stress and a logarithmic value of the contact strain rate so as to determine a creep index n and creep constant k.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 26, 2020
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventor: Tatsuya Miyajima
  • Publication number: 20200055771
    Abstract: The present invention relates to a film-attached glass substrate, characterized by: being provided with a glass substrate having two primary surfaces each having a compressive stress layer, and a film containing 1 at % or more of K disposed on one of the primary surfaces of the glass substrate; and the ratio of the difference in the amount of K in the compressive stress layer between the primary surfaces, the ratio being represented by formula (1), being ?0.027 to 0.027.
    Type: Application
    Filed: October 25, 2019
    Publication date: February 20, 2020
    Applicant: AGC Inc.
    Inventors: Yosuke TAKEDA, Toru IKEDA, Naofumi AOYAMA, Tatsuya MIYAJIMA, Yoichi SERA
  • Patent number: 10428943
    Abstract: A side rail (1) is formed in a sprit ring shape with an opening (10) and to be mounted on a space expander (2) in an annular shape to constitute, together with the space expander (2), a multi-piece oil ring (3) used in an internal combustion engine. The side rail (1) includes an outer peripheral surface (14) facing radially outward, an inner peripheral surface (13) facing radially inward, a first axial surface (11) facing a crankcase, a second axial surface (12) facing a combustion chamber and parallel to the first axial surface (11), and a protrusion (20) formed on the outer peripheral surface (14) in a position offset from an intermediate position between the first axial surface (11) and the second axial surface (12) toward the first axial surface (11) and protruding radially outward from the outer peripheral surface (14).
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: October 1, 2019
    Assignee: KABUSHIKI KAISHA RIKEN
    Inventors: Yuichiro Takezawa, Tatsuya Miyajima
  • Publication number: 20180354841
    Abstract: To provide high-strength granules having a broad range of applications of the glass composition, and a method for their production. The method for producing glass raw material granules comprises mixing and granulating a glass raw material composition with water, wherein the glass raw material composition contains at least silica and an aluminum source, and the aluminum source contains hydraulic alumina.
    Type: Application
    Filed: August 14, 2018
    Publication date: December 13, 2018
    Applicant: AGC Inc.
    Inventors: Yasuhiro KUNISA, Seiji Miyazaki, Nobuhiro Shinohara, Tatsuya Miyajima
  • Publication number: 20180164199
    Abstract: A measurement apparatus for carrying out an indentation creep test on a specimen, including a measurement control apparatus that includes a load measurement device, a constant-load compression device configured to compress a tip of a transparent indenter to a surface of the specimen, and an image capturing device configured to optically capture an image including a contact area portion which is a part of the specimen to which the load is applied by the constant-load compression device. The apparatus also includes an information processing apparatus that includes an image analysis unit configured to analyze a contact area, and a physical property value calculation unit. The physical property value calculation unit conducts linear regression with respect to a plot of a logarithmic value of the contact stress and a logarithmic value of the contact strain rate so as to determine a creep index n and creep constant k.
    Type: Application
    Filed: June 1, 2016
    Publication date: June 14, 2018
    Inventor: Tatsuya MIYAJIMA
  • Publication number: 20180131026
    Abstract: To provide a liquid composition with which a catalyst layer and a polymer electrolyte membrane will hardly be broken at the time of their formation and a method for producing the liquid composition; and a method for producing a membrane/electrode assembly by which a catalyst layer and a polymer electrolyte membrane will hardly be broken at the time of their formation. A liquid composition comprising a polymer having ion exchange groups, water and an organic solvent, wherein the average secondary particle size of the polymer having ion exchange groups is from 100 to 3,000 nm, and the primary particle size parameter represented by the product of the average primary particle size (nm) and the ion exchange capacity (meq/g dry resin) of the polymer having ion exchange groups, is from 12 to 20.
    Type: Application
    Filed: January 3, 2018
    Publication date: May 10, 2018
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hiroyuki WATABE, Satoru HOMMURA, Jun KATO, Tatsuya MIYAJIMA
  • Publication number: 20180031127
    Abstract: A side rail (1) is formed in a sprit ring shape with an opening (10) and to be mounted on a space expander (2) in an annular shape to constitute, together with the space expander (2), a multi-piece oil ring (3) used in an internal combustion engine. The side rail (1) includes an outer peripheral surface (14) facing radially outward, an inner peripheral surface (13) facing radially inward, a first axial surface (11) facing a crankcase, a second axial surface (12) facing a combustion chamber and parallel to the first axial surface (11), and a protrusion (20) formed on the outer peripheral surface (14) in a position offset from an intermediate position between the first axial surface (11) and the second axial surface (12) toward the first axial surface (11) and protruding radially outward from the outer peripheral surface (14).
    Type: Application
    Filed: March 3, 2016
    Publication date: February 1, 2018
    Applicant: KABUSHIKI KAISHA RIKEN
    Inventors: Yuichiro TAKEZAWA, Tatsuya MIYAJIMA
  • Publication number: 20170174545
    Abstract: To provide a method capable of producing granules without complicating the production process even if boric acid is not used. The method for producing glass raw material granules has a step of granulating, in the presence of water, a glass raw material composition (A) which comprises from 45 to 75 mass % of silica, from 3 to 30 mass % of aluminum hydroxide and from 0.4 to 4.6 mass % of an alkali metal hydroxide.
    Type: Application
    Filed: March 7, 2017
    Publication date: June 22, 2017
    Applicant: Asahi Glass Company, Limited
    Inventors: Yasuhiro KUNISA, Nobuhiro Shinohara, Tatsuya Miyajima
  • Patent number: 9580557
    Abstract: An organo polysiloxane to improve the abrasion and weather resistance of a hard coating layer obtained from a silicone-type hard coating composition. The hard coating composition contains a first organo polysiloxane having silicone-containing bond units selected from the group consisting of R—Si(—OX)2(—O*—), R—Si(—OX)(—O*—)2 and R—Si(—O*—)3) and a second organo polysiloxane having the same, where the second organo polysiloxane has a weight average molecular weight of 1/10 to 1/1.5 times that of the first organo polysiloxane. Further, a resin substrate having a hard coating layer made of a cured product of the hard coating composition that has improved abrasion and weather resistance. For resin substrates used in a bent state, the hard coating layer also improves the cracking resistance associated with mechanical stress.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: February 28, 2017
    Assignee: Asahi Glass Company, Limited
    Inventors: Kyoko Yamamoto, Takashi Shibuya, Tatsuya Miyajima
  • Publication number: 20160149265
    Abstract: To provide a flame-retardant non-aqueous electrolyte solution for secondary batteries, with which a lithium ion secondary battery excellent in the rate properties can be obtained; and a safe lithium ion secondary battery excellent in the rate properties. A non-aqueous electrolyte solution for secondary batteries, comprising a lithium salt and a liquid composition, wherein the liquid composition comprises at least one fluorine-containing solvent (?) selected from the group consisting of a fluorine-containing ether compound, a fluorine-containing chain carboxylic acid ester compound and a fluorine-containing chain carbonate compound, and a cyclic carboxylic acid ester compound, the lithium salt contains LiPF6, and the lithium ion diffusion coefficient of the non-aqueous electrolyte solution at 25° C. is at least 1.1×10?10 m2/s.
    Type: Application
    Filed: January 28, 2016
    Publication date: May 26, 2016
    Applicant: Asahi Glass Company, Limited
    Inventors: Yu ONOZAKI, Eisuke Murotani, Tatsuya Miyajima, Toyokazu Enta
  • Publication number: 20160082699
    Abstract: The present invention relates to a resin layer-attached supporting substrate and particularly relates to a resin layer-attached supporting substrate which includes a layer of a polyimide resin produced using a predetermined method. Further, the present invention relates to a method for producing the resin layer-attached supporting substrate, a glass laminate which includes the resin layer-attached supporting substrate and a method for producing the same, and a method for producing an electronic device.
    Type: Application
    Filed: November 30, 2015
    Publication date: March 24, 2016
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Junichi KAKUTA, Kenichi EBATA, Tatsuya MIYAJIMA, Yoji NAKAJIMA, Yuki ISHIKAWA
  • Publication number: 20160075110
    Abstract: The present invention relates to a flexible substrate and particularly relates to a flexible substrate which includes a resin layer of a polyimide resin produced using a predetermined method. Further, the present invention relates to a method for producing the flexible substrate, a glass laminate which includes the flexible substrate and a method for producing the same, and a method for producing an electronic device.
    Type: Application
    Filed: November 30, 2015
    Publication date: March 17, 2016
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Junichi KAKUTA, Kenichi Ebata, Tatsuya Miyajima, Yoji Nakajima, Yuki Ishikawa
  • Publication number: 20140000702
    Abstract: To provide an adhesive composition capable of forming an adhesive layer that can maintain a high adhesive force and an excellent ultraviolet absorbing function over a long period of time, a laminate having an adhesive layer formed of the adhesive composition, and a solar cell module having such a laminate. An adhesive composition comprising a polyurethane resin made from a polycarbonate polyol, a curing agent, a triazine-type ultraviolet absorber and a light stabilizer. Further, a laminate 10 having a first substrate 11, an adhesive layer 12 formed of the adhesive composition and a second substrate 13 laminated in this order. A solar cell module having the laminate 10 as at least one of a front surface material or a rear surface material.
    Type: Application
    Filed: September 3, 2013
    Publication date: January 2, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hiroshi ARUGA, Koichi Oda, Tatsuya Miyajima
  • Publication number: 20120058333
    Abstract: An organo polysiloxane to improve the abrasion and weather resistance of a hard coating layer obtained from a silicone-type hard coating composition. The hard coating composition contains a first organo polysiloxane having silicone-containing bond units selected from the group consisting of R—Si(—OX)2(—O*—), R—Si(—OX)(—O*—)2 and R—Si(—O*—)3) and a second organo polysiloxane having the same, where the second organo polysiloxane has a weight average molecular weight of 1/10 to 1/1.5 times that of the first organo polysiloxane. Further, a resin substrate having a hard coating layer made of a cured product of the hard coating composition that has improved abrasion and weather resistance. For resin substrates used in a bent state, the hard coating layer also improves the cracking resistance associated with mechanical stress.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 8, 2012
    Applicant: Asahi Glass Company, Limited
    Inventors: Kyoko Yamamoto, Takashi Shibuya, Tatsuya Miyajima
  • Patent number: 6753393
    Abstract: A fluorocopolymer which comprises (A) polymerized units based on tetrafluoroethylene, (B) polymerized units based on ethylene and (C) polymerized units based on a compound represented by CH2═CX(CF2)2Y (wherein each of X and Y which are independent of each other, is a hydrogen atom or a fluorine atom), wherein the molar ratio of (A)/(B) is from 20/80 to 80/20, and the molar ratio of (C)/((A)+(B)) is from 1/1000 to 15/100, and which has a volume flow rate of from 1 to 1000 mm3/sec. The fluorocopolymer has a low fuel permeability coefficient and is excellent in the fuel barrier properties.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: June 22, 2004
    Assignee: Asahi Glass Company, Limited
    Inventors: Atsushi Funaki, Tatsuya Miyajima, Naoko Sumi, Eiichi Nishi, Hiroki Kamiya