Patents by Inventor Toshihiko Uemura

Toshihiko Uemura 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: 10886055
    Abstract: A wound core is formed by laminating a plurality of bent bodies formed from a grain-oriented electrical steel sheet having a coating containing phosphorus formed on a surface, in a sheet thickness direction of the grain-oriented electrical steel sheet, in which the bent body is formed in a rectangular shape by having four flat portions and four corner portions adjacent to the flat portions, the corner portion has a bent region having a total bending angle of approximately 90° in a side view, the number of deformation twins present in the bent region in the side view is five or less per 1 mm of a length of a center line in the bent region in the sheet thickness direction, and the amount of phosphorus eluted from the corner portion in a case of being boiled in water for 30 minutes is 6.0 mg or less per 1 m2 of a surface area of the corner portion.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: January 5, 2021
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Takahito Mizumura, Masato Mizokami, Masao Yabumoto, Toshihiko Uemura, Eisuke Minematsu, Fumiaki Takahashi
  • Publication number: 20200126709
    Abstract: A wound core is formed by laminating a plurality of bent bodies formed from a grain-oriented electrical steel sheet having a coating containing phosphorus formed on a surface, in a sheet thickness direction of the grain-oriented electrical steel sheet, in which the bent body is formed in a rectangular shape by having four flat portions and four corner portions adjacent to the flat portions, the corner portion has a bent region having a total bending angle of approximately 90° in a side view, the number of deformation twins present in the bent region in the side view is five or less per 1 mm of a length of a center line in the bent region in the sheet thickness direction, and the amount of phosphorus eluted from the corner portion in a case of being boiled in water for 30 minutes is 6.0 mg or less per 1 m2 of a surface area of the corner portion.
    Type: Application
    Filed: January 10, 2018
    Publication date: April 23, 2020
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Takahito MIZUMURA, Masato MIZOKAMI, Masao YABUMOTO, Toshihiko UEMURA, Eisuke MINEMATSU, Fumiaki TAKAHASHI
  • Patent number: 8347744
    Abstract: Because a sample holder 100 is composed of a plurality of convex parts 1 provided on a top face of a base substance 2, and the plurality of convex parts 1 are spherical surfaces 1a formed of a single crystal or amorphous material, frictional wear of the sample at contact parts between a sample 4 and the convex parts 1 is reduced, thereby making it possible to inhibit particle generation. Further, because a joining layer 3 is formed of a single crystal or amorphous material, there is no defect that particles scattered on the sample holder 100 fill up it, which makes it possible to easily keep it in a clean state by cleaning, and it is possible to effectively reduce reattachment of particles to the sample 4.
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: January 8, 2013
    Assignees: Kyocera Corporation, Okutec Co., Ltd.
    Inventors: Takeshi Muneishi, Toshihiko Uemura, Katsuya Okumura
  • Publication number: 20090293647
    Abstract: Because a sample holder 100 is composed of a plurality of convex parts 1 provided on a top face of a base substance 2, and the plurality of convex parts 1 are spherical surfaces 1a formed of a single crystal or amorphous material, frictional wear of the sample at contact parts between a sample 4 and the convex parts 1 is reduced, thereby making it possible to inhibit particle generation. Further, because a joining layer 3 is formed of a single crystal or amorphous material, there is no defect that particles scattered on the sample holder 100 fill up it, which makes it possible to easily keep it in a clean state by cleaning, and it is possible to effectively reduce reattachment of particles to the sample 4.
    Type: Application
    Filed: September 28, 2006
    Publication date: December 3, 2009
    Applicants: KYOCERA CORPORATION, OKUTEC CO., LTD.
    Inventors: Takeshi Muneishi, Toshihiko Uemura, Katsuya Okumura
  • Patent number: 5830819
    Abstract: An aluminous sintered product comprising 70 to 96% by weight of an alumina component and 4 to 30% by weight of additives, said additives including at least the one selected from oxides of elements of the Group 5a of periodic table and at least the one selected from oxides of metals of the iron family and oxides of manganese, titanium, calcium, magnesium, chromium and silica, and said aluminous sintered product exhibiting a volume resistivity of from 1.times.10.sup.7 to 1.times.10.sup.13 .OMEGA.-cm over a temperature range of from 25.degree. to 75.degree. C. and an absolute value of the temperature coefficient of volume resistivity of not larger than 1.8%/.degree.C. under the application of high voltages.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: November 3, 1998
    Assignees: Kyocera Corporation, Sony Corporation
    Inventors: Kunihide Shikata, Kenichi Nagae, Toshihiko Uemura, Masaki Hayashi, Tsuneo Muchi
  • Patent number: 5084112
    Abstract: A high strength non-oriented electrical steel sheet with good magnetic properties having a yield strength of .gtoreq.60 kg-f/mm.sup.2 and a yield point elongation of YP-El.gtoreq.0.3% comprising, by weight percent: up to 0.04% carbon; from 2.0% to less than 4.0% silicon; from zero percent to 2.0% aluminum; up to 0.2% phosphorus, and including one or more elements selected from manganese and nickel in an amount within the range 0.3%.ltoreq.Mn+Ni<10%, with the remainder of iron and unavoidable impurities, and a method of manufacturing the steel.
    Type: Grant
    Filed: September 21, 1989
    Date of Patent: January 28, 1992
    Assignee: Nippon Steel Corporation
    Inventors: Ichiro Tachino, Takeshi Kubota, Toshihiko Uemura, Masahiro Nakamoto
  • Patent number: 4497105
    Abstract: A method of manufacturing solid electrolyte chip capacitors. Each capacitor comprises a substantially rectangular capacitor element having a cathode layer surrounding it, an anode conductor rod protruding therefrom and a pair of electrode terminals disposed on the bottom face thereof. A metal strip, such as the material of electrode terminals, is punched and pressed to form pairs of L-shaped terminals with horizontal legs connected to the remainder of the strip, which face toward and spaced from each other by a distance corresponding to the full length of the capacitor element, each of the vertical legs has a pair of facing side wings separated by a distance corresponding to the width of the capacitor element. The capacitor element is inserted in each enclosure defined by the vertical legs and their wings and positioned precisely, and then encapsulated with synthetic resin. The resultant products are cut off from the strip.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: February 5, 1985
    Assignee: Matsuo Electric Company, Ltd.
    Inventor: Toshihiko Uemura