Patents by Inventor Yasunori Harada

Yasunori Harada 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: 20220085147
    Abstract: A dielectric thin film element including a first electrode layer, a dielectric layer, and a second electrode layer located in this order from a substrate side. A relationship of 0.75?Rsk1?5.0 is satisfied, in which skewness of a roughness curve of the first electrode layer on the dielectric layer side is set as Rsk1.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 17, 2022
    Applicant: TDK CORPORATION
    Inventors: Yasunori HARADA, Daiki ISHII, Yoshihiko YANO
  • Publication number: 20200312553
    Abstract: A dielectric film, contains: (1) Bi and Ti; (2) at least one element E1 selected from the group consisting of Na and K; and (3) at least one element E2 selected from the group consisting of Ba, Sr, and Ca. The dielectric film has a main phase containing an oxide that contains Bi, Ti, the element E1, and the element E2 and has a perovskite structure, and a subphase that contains Bi and has an oxygen concentration lower than that of the main phase. In a sectional surface of the dielectric film, a ratio RS of an area of the subphase to a sum of an area of the main phase and the area of the subphase is greater than or equal to 0.03 and less than or equal to 0.3.
    Type: Application
    Filed: March 19, 2020
    Publication date: October 1, 2020
    Applicant: TDK Corporation
    Inventors: Shirou OOTSUKI, Aiko TAKAHASHI, Yasunori HARADA, Shota SUZUKI, Yasunaga KAGAYA, Tomohiko KATO, Mirai ISHIDA
  • Patent number: 10002714
    Abstract: The present invention relates to a dielectric element such as a thin-film capacitor including a dielectric film. The dielectric film contains a main component represented by the general formula (Ba1-xCax)z(Ti1-yZry)O3 wherein 0<x?0.500, 0<y?0.350, and 0.900?z?0.995. The dielectric film includes a layer containing columnar crystal grains and a layer containing spherical crystal grains, and contains as a sub-component at least one of divalent metal elements and trivalent metal elements.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: June 19, 2018
    Assignee: TDK CORPORATION
    Inventors: Saori Takeda, Masahito Furukawa, Masanori Kosuda, Shirou Ootsuki, Yasunori Harada
  • Publication number: 20160329152
    Abstract: The present invention relates to a dielectric element such as a thin-film capacitor including a dielectric film. The dielectric film contains a main component represented by the general formula (Ba1-xCax)z(Ti1-yZry)O3 wherein 0<x?0.500, 0<y?0.350, and 0.900?z?0.995. The dielectric film includes a layer containing columnar crystal grains and a layer containing spherical crystal grains, and contains as a sub-component at least one of divalent metal elements and trivalent metal elements.
    Type: Application
    Filed: April 21, 2016
    Publication date: November 10, 2016
    Applicant: TDK Corporation
    Inventors: Saori TAKEDA, Masahito FURUKAWA, Masanori KOSUDA, Shirou OOTSUKI, Yasunori HARADA
  • Patent number: 7121320
    Abstract: A method of shaping a semisolid metal comprising pouring a molten aluminum or magnesium alloy which contains a crystal grain refiner and which is superheated to less than 50° C. above a liquidus temperature of aluminum or magnesium, directly into a vessel without using a cooling jig, maintaining the alloy in the vessel for 30 seconds to 30 minutes as a resultant melt is cooled to a temperature where a specified liquid fraction is established such that a temperature of the poured alloy which is liquid and superheated to less than 10° C. above the liquidus temperature or which is partially solid, partially liquid and at a temperature of less than 5° C. below the liquidus temperature decreases from an initial level and passes through a temperature zone 5° C. below the liquidus temperature within at least 10 minutes, whereby fine primary crystals are generated in the alloy, recovering the alloy from the vessel, supplying the alloy into a mold, and shaping the alloy under pressure.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: October 17, 2006
    Assignee: Ube Industries, Ltd.
    Inventors: Mitsuru Adachi, Hiroto Sasaki, Yasunori Harada, Tatsuo Sakamoto, Satoru Sato
  • Publication number: 20050161127
    Abstract: A method of shaping a semisolid metal comprising pouring a molten aluminum or magnesium alloy which contains a crystal grain refiner and which is superheated to less than 50° C. above a liquidus temperature of aluminum or magnesium, directly into a vessel without using a cooling jig, maintaining the alloy in the vessel for 30 seconds to 30 minutes as a resultant melt is cooled to a temperature where a specified liquid fraction is established such that a temperature of the poured alloy which is liquid and superheated to less than 10° C. above the liquidus temperature or which is partially solid, partially liquid and at a temperature of less than 5° C. below the liquidus temperature decreases from an initial level and passes through a temperature zone 5° C. below the liquidus temperature within at least 10 minutes, whereby fine primary crystals are generated in the alloy, recovering the alloy from the vessel, supplying the alloy into a mold, and shaping the alloy under pressure.
    Type: Application
    Filed: December 9, 2004
    Publication date: July 28, 2005
    Applicant: Ube Industries, Ltd.
    Inventors: Mitsuru Adachi, Hiroto Sasaki, Yasunori Harada, Tatsuo Sakamoto, Satoru Sato
  • Patent number: 6851466
    Abstract: A method of shaping a semisolid metal to provide shaped parts which are produced in a convenient, easy and inexpensive manner, without relying upon the conventional mechanical or electromagnetic agitation. The method includes feeding, without using a cooling jig, into an insulating vessel, a molten alloy containing an element for promoting generation of crystal nuclei and being held to be superheated to less than 100° C. above a liquidus temperature of the alloy; maintaining the molten alloy in the insulating vessel for 5 seconds to 60 minutes as the alloy is cooled at a cooling rate of 0.01° C./s to 3.0° C./s thereby crystallizing fine primary spherical crystals in an alloy solution containing a specified liquid fraction; and feeding the alloy solution into a forming mold for shaping the alloy under pressure.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: February 8, 2005
    Assignee: Ube Industries, Ltd.
    Inventors: Mitsuru Adachi, Hiroto Sasaki, Yasunori Harada, Tatsuo Sakamoto, Satoru Sato
  • Publication number: 20040238150
    Abstract: A method of shaping a semisolid metal to provide shaped parts which are produced in a convenient, easy and inexpensive manner, without relying upon the conventional mechanical or electromagnetic agitation. The method includes feeding, without using a cooling jig, into an insulating vessel, a molten alloy containing an element for promoting generation of crystal nuclei and being held to be superheated to less than 100° C. above a liquidus temperature of the alloy; maintaining the molten alloy in the insulating vessel for 5 seconds to 60 minutes as the alloy is cooled at a cooling rate of 0.01° C./s to 3.0° C./s thereby crystallizing fine primary spherical crystals in an alloy solution containing a specified liquid fraction; and feeding the alloy solution into a forming mold for shaping the alloy under pressure.
    Type: Application
    Filed: May 24, 2004
    Publication date: December 2, 2004
    Applicant: Ube Industries, Ltd
    Inventors: Mitsuru Adachi, Hiroto Sasaki, Yasunori Harada, Tatsuo Sakamoto, Satoru Sato, Atsushi Yoshida
  • Patent number: 6769473
    Abstract: A method and apparatus for the semisolid forming of alloys to enable shaped parts having a fine-grained, spherical thixotropic structure to be produced in a convenient, easy and inexpensive manner without relying upon the conventional mechanical or electromagnetic agitation. In the method, a molten alloy having crystal nuclei at a temperature not lower than the liquidus temperature or a partially solid, partially molten alloy having crystal nuclei at a temperature not lower than a molding temperature is fed into an insulated vessel and is maintained in the insulated vessel for 5 seconds to 60 minutes as it is cooled to the molding temperature where a specified liquid fraction is established, thereby crystallizing fine primary crystals in the alloy solution, and the alloy is fed into a forming mold, where it is shaped under pressure.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: August 3, 2004
    Assignee: Ube Industries, Ltd.
    Inventors: Mitsuru Adachi, Hiroto Sasaki, Yasunori Harada, Tatsuo Sakamoto, Satoru Sato, Atsushi Yoshida
  • Patent number: 6165411
    Abstract: An improved apparatus for producing a semisolid shaping metal that has fine primary crystals dispersed in the liquid phase and which also has a uniform temperature distribution comprises a melt pouring section comprising a melting furnace which melts and holds a metal and a pouring device which lifts out the molten metal from said melting furnace, adjusts it to a specified temperature and pours it into a holding vessel, a nucleating section which generates crystal nuclei in the melt as it is supplied from said pouring device into said holding vessel, a crystal generating section which performs temperature adjustment such that the metal obtained from said nucleating section falls within a desired molding temperature range as it is cooled to a molding temperature at which it is partially solid, partially liquid, a holding vessel heating section which adjusts the temperature of the holding vessel when it is empty, a holding vessel conditioning section which inverts the holding vessel so that a partially molten m
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: December 26, 2000
    Assignee: UBE Industries, Ltd.
    Inventors: Mitsuru Adachi, Satoru Sato, Yasunori Harada, Takashi Kawasaki