Patents by Inventor Masayuki Yokota

Masayuki Yokota 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: 11178786
    Abstract: The method manufactures a hermetic sealing lid member used for an electronic component housing package including an electronic component arrangement member on which an electronic component is arranged. The method includes forming a clad material in which a silver brazing layer that contains Ag and Cu and a first Fe layer arranged on the silver brazing layer and made of Fe or an Fe alloy are bonded to each other by roll-bonding a silver brazing plate that contains Ag and Cu and a first Fe plate made of Fe or an Fe alloy to each other and performing first heat treatment for diffusion annealing; softening the clad material by performing second heat treatment; and forming the hermetic sealing lid member in a box shape including a recess portion by bending the softened clad material.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: November 16, 2021
    Assignee: HITACHI METALS, LTD.
    Inventors: Masayuki Yokota, Masaharu Yamamoto
  • Patent number: 10696589
    Abstract: This glass bonding material (21) is made of a cladding material (1) in which at least a first layer (11) made of an Al-based alloy and configured to be bonded to glass and a second layer (12) made of an Fe—Ni based alloy having a thermal expansion coefficient from 30° C. to 400° C. of 11.5×10?6 (K?1) or less are bonded.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: June 30, 2020
    Assignee: HITACHI METALS, LTD.
    Inventors: Masayuki Yokota, Ryoji Inoue, Yoshiharu Tsuboi, Masaharu Yamamoto, Masaru Fujiyoshi, Naruaki Tomita, Kouji Kawahara
  • Patent number: 10595424
    Abstract: This hermetic sealing lid member (10) is made of a clad material (20) including a silver brazing layer (21) that contains Ag and Cu and a first Fe layer (22) bonded onto the silver brazing layer and made of Fe or an Fe alloy. The hermetic sealing lid member is formed in a box shape including a recess portion (13) by bending the clad material.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: March 17, 2020
    Assignee: HITACHI METALS, LTD.
    Inventors: Masayuki Yokota, Masaharu Yamamoto
  • Patent number: 10461001
    Abstract: This method for manufacturing a hermetic sealing lid member (1, 201, 301) includes forming a Ni plated metal plate (70, 170) by forming a Ni plated layer (11, 12, 41) on a surface of a metal plate (40) having a corrosion resistance and forming the hermetic sealing lid member by punching the Ni plated metal plate.
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: October 29, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Masayuki Yokota, Masaharu Yamamoto
  • Publication number: 20190289738
    Abstract: The method manufactures a hermetic sealing lid member used for an electronic component housing package including an electronic component arrangement member on which an electronic component is arranged. The method includes forming a clad material in which a silver brazing layer that contains Ag and Cu and a first Fe layer arranged on the silver brazing layer and made of Fe or an Fe alloy are bonded to each other by roll-bonding a silver brazing plate that contains Ag and Cu and a first Fe plate made of Fe or an Fe alloy to each other and performing first heat treatment for diffusion annealing; softening the clad material by performing second heat treatment; and forming the hermetic sealing lid member in a box shape including a recess portion by bending the softened clad material.
    Type: Application
    Filed: June 6, 2019
    Publication date: September 19, 2019
    Applicant: HITACHI METALS, LTD.
    Inventors: Masayuki Yokota, Masaharu Yamamoto
  • Patent number: 10026947
    Abstract: A battery terminal is made of a clad material in which a first metal layer made of an Al-based alloy, a second metal layer made of a Cu-based alloy, and a third metal layer made of a Ni-based alloy are bonded to each other in a state where the first metal layer, the second metal layer, and the third metal layer are stacked in this order. The battery terminal includes a shaft portion and a flange portion that radially expands from the shaft portion, and has the third metal layer at least in an end of the shaft portion on a first side in a shaft direction in which the shaft portion extends.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: July 17, 2018
    Assignee: HITACHI METALS, LTD.
    Inventors: Masayuki Yokota, Yoshimitsu Oda
  • Publication number: 20170367205
    Abstract: This hermetic sealing lid member (1) is made of a clad material (10) including a base material layer (11) made of an Fe alloy that contains 4 mass % or more of Cr and a silver brazing layer (13) bonded onto a surface of the base material layer on a side closer to an electronic component housing member through an intermediate layer (12).
    Type: Application
    Filed: January 20, 2016
    Publication date: December 21, 2017
    Applicant: HITACHI METALS, LTD.
    Inventors: Masayuki Yokota, Masaharu Yamamoto
  • Publication number: 20170354049
    Abstract: This hermetic sealing lid member (10) is made of a clad material (20) including a silver brazing layer (21) that contains Ag and Cu and a first Fe layer (22) bonded onto the silver brazing layer and made of Fe or an Fe alloy. The hermetic sealing lid member is formed in a box shape including a recess portion (13) by bending the clad material.
    Type: Application
    Filed: December 24, 2015
    Publication date: December 7, 2017
    Applicant: HITACHI METALS, LTD.
    Inventors: Masayuki Yokota, Masaharu Yamamoto
  • Publication number: 20170330811
    Abstract: This method for manufacturing a hermetic sealing lid member (1, 201, 301) includes forming a Ni plated metal plate (70, 170) by forming a Ni plated layer (11, 12, 41) on a surface of a metal plate (40) having a corrosion resistance and forming the hermetic sealing lid member by punching the Ni plated metal plate.
    Type: Application
    Filed: November 17, 2015
    Publication date: November 16, 2017
    Applicant: HITACHI METALS, LTD.
    Inventors: Masayuki Yokota, Masaharu Yamamoto
  • Publication number: 20170283318
    Abstract: This glass bonding material (21) is made of a cladding material (1) in which at least a first layer (11) made of an Al-based alloy and configured to be bonded to glass and a second layer (12) made of an Fe—Ni based alloy having a thermal expansion coefficient from 30° C. to 400° C. of 11.5×10?6 (K?1) or less are bonded.
    Type: Application
    Filed: May 23, 2017
    Publication date: October 5, 2017
    Applicant: HITACHI METALS, LTD.
    Inventors: Masayuki Yokota, Ryoji Inoue, Yoshiharu Tsuboi, Masaharu Yamamoto, Masaru Fujiyoshi, Naruaki Tomita, Kouji Kawahara
  • Publication number: 20170054131
    Abstract: A battery terminal is made of a clad material in which a first metal layer made of an Al-based alloy, a second metal layer made of a Cu-based alloy, and a third metal layer made of a Ni-based alloy are bonded to each other in a state where the first metal layer, the second metal layer, and the third metal layer are stacked in this order. The battery terminal includes a shaft portion and a flange portion that radially expands from the shaft portion, and has the third metal layer at least in an end of the shaft portion on a first side in a shaft direction in which the shaft portion extends.
    Type: Application
    Filed: July 26, 2016
    Publication date: February 23, 2017
    Applicants: Hitachi Metals Neomaterial, Ltd., HITACHI METALS, LTD.
    Inventors: Masayuki Yokota, Yoshimitsu Oda
  • Publication number: 20150232244
    Abstract: This cover material for hermetic sealing is a cover material for hermetic sealing employed for a package for containing an electronic component. The cover material 1 for hermetic sealing is constituted of a clad material including a base material layer made of an Ni—Cr—Fe alloy containing Ni, Cr and Fe or an Ni—Cr—Co—Fe alloy containing Ni, Cr, Co and Fe, and a surface layer bonded to one surface of the base material layer on a side of an electronic component containing member and made of Ni or an Ni alloy.
    Type: Application
    Filed: November 8, 2013
    Publication date: August 20, 2015
    Applicants: NEOMAX MATERIALS Co., Ltd., HITACHI METALS, LTD.
    Inventors: Masayuki Yokota, Masaharu Yamamoto
  • Patent number: 8334078
    Abstract: A separator for a fuel cell according to the present invention includes: a base 1 containing 70 mass % or more of Al; an underlying layer 2 being formed on the base and containing Ti; an intermediate layer 3 being formed on the underlying layer and containing TiNx or TiOy; and a conductive metal layer 4 being formed on the intermediate layer and containing Au or Pt. The separator for a fuel cell according to the present invention has an excellent anticorrosiveness although a base containing aluminum as a main component is used.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: December 18, 2012
    Assignee: Neomax Materials Co., Ltd.
    Inventors: Masayuki Yokota, Fumiaki Kikui, Ken Asada
  • Publication number: 20120196185
    Abstract: The present invention relates to a positive electrode active substance for non-aqueous electrolyte secondary batteries which comprises particles comprising a polyanionic compound and carbon, and a lipophilic treatment agent with which the respective particles are coated, wherein the positive electrode active substance has an average particle diameter of 1 to 50 ?m. The positive electrode active substance preferably has an oil absorption of not more than 20 mL/100 g. The positive electrode active substance according to the present invention exhibits a good compatibility with a resin and is excellent in packing property and dispersibility in the resin, and therefore can provide an electrode sheet in which the positive electrode active substance is filled with a high packing density.
    Type: Application
    Filed: July 27, 2010
    Publication date: August 2, 2012
    Inventors: Yoshiteru Kono, Kenji Ogisu, Toshiyuki Hakata, Yuji Mishima, Katsuji Iwami, Masayuki Yokota, Minoru Yamasaki, Akihisa Kajiyama, Hideaki Sadamura
  • Patent number: 8101867
    Abstract: An electroless Ni—P plating method according to the present invention includes the steps of: providing a substrate including an insulating substrate and a copper alloy layer that has a predetermined pattern including a plurality of island portions that are isolated from each other; providing a plating solution to carry out electroless Ni—P plating; providing a solid piece including Ni, Ni—P, Co or Co—Ni on at least the surface thereof; and bringing the solid piece into contact with the surface of at least two of the island portions that are both in contact with the plating solution, thereby selectively forming an electroless Ni—P plated coating on the surface of the island portions. Thus, the present invention provides a Ni—P plating method that can subject the copper pattern on the insulating substrate to high-precision selective Ni—P plating on an industrial basis.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: January 24, 2012
    Assignee: Neomax Materials Co., Ltd.
    Inventors: Masayuki Yokota, Ken Asada, Fumiaki Kikui
  • Patent number: 7956182
    Abstract: This invention relates to a process for producing optically active alcohols using asymmetric reduction of aromatic ketones. This process gives optically active alcohols in high enantioselectivity in a large scale production.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: June 7, 2011
    Assignee: Kotobuki Pharmaceutical Co., Ltd.
    Inventors: Hiroshi Tomiyama, Masayuki Yokota
  • Patent number: 7830001
    Abstract: A Cu—Mo substrate 10 according to the present invention includes: a Cu base 1 containing Cu as a main component; an Mo base having opposing first and second principal faces 2a, 2b and containing Mo as a main component, the second principal face 2b of the Mo base 2 being positioned on at least a portion of a principal face 1a of the Cu base 1; and a first Sn—Cu-type alloy layer 3 covering the first principal face 2a and side faces 2c and 2d of the Mo base 2, the first Sn—Cu-type alloy layer 3 containing no less than 1 mass % and no more than 13 mass % of Sn.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: November 9, 2010
    Assignee: Neomax Materials Co., Ltd.
    Inventors: Masayuki Yokota, Kazuhiro Shiomi, Fumiaki Kikui, Masaaki Ishio
  • Patent number: 7795229
    Abstract: A serum cholesterol lowing agent or a preventive or therapeutile agent for atherosclerosis, which each comprises a combination of a compound represented by the following general formula (I) or pharmaceutical acceptable salts thereof with a cholesterol biosynthesis inhibitor and/or a fibrate type cholesterol lowing agent. (I) (b) (a) [In the formula, A1, A2, A3 and A4 each is hydrogen, a group represented by the formula (b), or a group represented by the formula (a), provided that at least one of these is a group represented by the formula (a); A2 is C1-5 alkyl etc; and n. p, q and r each is an integer of 0, 1 or 2.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: September 14, 2010
    Assignee: Kotobuki Pharmaceutical Co., Ltd.
    Inventors: Hiroshi Tomiyama, Masayuki Yokota, Kazuhiro Kosakai
  • Patent number: 7691898
    Abstract: This invention related to a series of new phosphonic acid derivatives having anti-hyperphosphatemia activity. wherein: A is selected from —(CH2)n—, —CO—, —(CH2)n—CO—(CH2)m—, —(CH2)n—CS—(CH2)m— or a branched alkylene group, B ring and C ring are selected from a benzene ring, naphthalene ring, azulene ring or, heterocycle or fused heterocycle compound, D is —(CH2)(n+1)—, —(CH2)—O—(CH2)m—, —(CH2)—S(O)o—(CH2)m—, —CF3 or —(CH2)n—NR10—(CH2)m— wherein a D ring is connected with the carbon atom composing the C ring, E is selected from an oxygen atom or a sulfur atom, P is a phosphine atom, R1˜R7, wherein R1 and R2, R4 and R5 are joined together with neighbored carbon atom to form 5˜7 membered saturated or unsaturated hydrocarbon ring, or 5˜6 membered fused heterocycle, R1, R2 and R3 are not a hydrogen atom if the B ring is a benzene ring and may be the same or different and are substituents, R8 and R9 are may be the same or different and are substituents, R10 is an alkyl group, n and m are 0-10 and o is 0-2.
    Type: Grant
    Filed: October 5, 2005
    Date of Patent: April 6, 2010
    Assignee: Kotobuki Pharmaceutical Co., Ltd.
    Inventors: Hiroshi Tomiyama, Masayuki Yokota, Kazuo Tokuzaki, Ryoko Tomita
  • Publication number: 20100055539
    Abstract: A separator for a fuel cell according to the present invention includes: a base 1 containing 70 mass % or more of Al; an underlying layer 2 being formed on the base and containing Ti; an intermediate layer 3 being formed on the underlying layer and containing TiNx or TiOy; and a conductive metal layer 4 being formed on the intermediate layer and containing Au or Pt. The separator for a fuel cell according to the present invention has an excellent anticorrosiveness although a base containing aluminum as a main component is used.
    Type: Application
    Filed: November 16, 2007
    Publication date: March 4, 2010
    Applicant: NEOMAX MATERIALS CO., LTD.
    Inventors: Masayuki Yokota, Fumiaki Kikui, Ken Asada