Patents by Inventor Hitoshi Maeda

Hitoshi Maeda 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: 20210225588
    Abstract: In a coil component and a method for manufacturing the same, a winding part of a coil is grown by plating so as to extend between resin walls of a resin body provided before the coil is grown by plating. The resin wall is interposed between adjacent turns of the winding part of the coil during the plating growth, and therefore contact between adjacent turns of the winding part of the coil cannot occur.
    Type: Application
    Filed: April 7, 2021
    Publication date: July 22, 2021
    Applicant: TDK CORPORATION
    Inventors: Hitoshi OHKUBO, Masazumi ARATA, Manabu OHTA, Shou KAWADAHARA, Yoshihiro MAEDA, Takahiro KAWAHARA, Hokuto EDA, Shigeki SATO
  • Publication number: 20210208497
    Abstract: Provided is a mask blank, including a phase shift film. The phase shift film has a structure where a first layer and a second layer are stacked in this order from a side of the transparent substrate. The first layer is provided in contact with a surface of the transparent substrate. Refractive indexes n1 and n2 of the first layer and the second layer, respectively, at a wavelength of an exposure light of an ArF excimer laser satisfy the relation n1<n2. Extinction coefficients k1 and k2 of the first layer and the second layer, respectively, at a wavelength of the exposure light satisfy the relation k1<k2. Film thicknesses d1 and d2 of the first layer and the second layer, respectively, satisfy the relation d1<d2.
    Type: Application
    Filed: May 8, 2019
    Publication date: July 8, 2021
    Applicant: HOYA CORPORATION
    Inventors: Hitoshi MAEDA, Hiroaki SHISHIDO, Masahiro HASHIMOTO
  • Patent number: 11022875
    Abstract: Provided is a mask blank for a phase shift mask including an etching stopper film. A mask blank has a structure where a transparent substrate has layered thereon an etching stopper film and a phase shift film in this order, in which the phase shift film contains silicon and oxygen, in which the phase shift film has a refractive index n1 of 1.5 or more for light of 193 nm wavelength and an extinction coefficient k1 of 0.1 or less for light of 193 nm wavelength, in which the etching stopper film has a refractive index n2 of 2.6 or more for light of 193 nm wavelength and an extinction coefficient k2 of 0.4 or less for light of 193 nm wavelength, and the refractive index n2 and the extinction coefficient k2 satisfy at least one of k2?[(?0.188×n2)+0.879] and k2?[(2.75×n2)?6.945].
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: June 1, 2021
    Assignee: HOYA CORPORATION
    Inventors: Kazutake Taniguchi, Hitoshi Maeda, Ryo Ohkubo
  • Patent number: 11009787
    Abstract: A mask blank in which a phase shift film provided on a transparent substrate includes at least a nitrogen-containing layer and an oxygen-containing layer, the nitrogen-containing layer contains silicon and nitrogen and the oxygen-containing layer contains silicon and oxygen, wherein, when the nitrogen-containing layer is subjected to X-ray photoelectron spectroscopy to obtain a maximum peak PSi_f of photoelectron intensity of a Si2p narrow spectrum and the transparent substrate is subjected to X-ray photoelectron spectroscopy to obtain a maximum peak PSi_s of photoelectron intensity of a Si2p narrow spectrum, the numerical value (PSi_f)/(PSi_s), which is produced by dividing the maximum peak PSi_f in the nitrogen-containing layer by the maximum peak PSi_s in the transparent substrate, is 1.09 or less.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: May 18, 2021
    Assignee: HOYA CORPORATION
    Inventors: Hitoshi Maeda, Ryo Ohkubo, Yasutaka Horigome
  • Publication number: 20210132488
    Abstract: Provided is a mask blank including a phase shift film The phase shift film has a structure where a first layer, a second layer, and a third layer are stacked in this order from a side of the transparent substrate. Refractive indexes n1, n2, and n3 of the first layer, the second layer, and the third layer, respectively, at a wavelength of an exposure light of an ArF excimer laser satisfy the relations n1>n2 and n2<n3. Extinction coefficients k1, k2, and k3 of the first layer, the second layer, and the third layer, respectively, at a wavelength of the exposure light satisfy the relations k1<k2 and k2>k3. Film thicknesses d1, d2, and d3 of the first layer, the second layer, and the third layer, respectively, satisfy the relations d1<d3 and d2<d3.
    Type: Application
    Filed: May 8, 2019
    Publication date: May 6, 2021
    Applicant: HOYA CORPORATION
    Inventors: Hiroaki SHISHIDO, Hitoshi MAEDA, Masahiro HASHIMOTO
  • Patent number: 10998537
    Abstract: A battery includes a stacked electrode body including a plurality of single plate cells and having a positive electrode lead-stacked part and a negative electrode lead-stacked part, the single plate cells each being formed by stacking a positive electrode and a negative electrode with a separator interposed therebetween, the positive electrode lead-stacked part being formed by stacking positive electrode leads of the positive electrodes on top of each other in stacking order of the single plate cells, the negative electrode lead-stacked part being formed by stacking negative electrode leads of the negative electrodes on top of each other in stacking order of the single plate cells; a positive electrode terminal; and a negative electrode terminal.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: May 4, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hitoshi Maeda, Yoshitaka Shinyashiki
  • Publication number: 20210088895
    Abstract: A mask blank in which a phase shift film provided on a transparent substrate includes at least a nitrogen-containing layer and an oxygen-containing layer, the nitrogen-containing layer contains silicon and nitrogen and the oxygen-containing layer contains silicon and oxygen, wherein, when the nitrogen-containing layer is subjected to X-ray photoelectron spectroscopy to obtain a maximum peak PSi_f of photoelectron intensity of a Si2p narrow spectrum and the transparent substrate is subjected to X-ray photoelectron spectroscopy to obtain a maximum peak PSi_s of photoelectron intensity of a Si2p narrow spectrum, the numerical value (PSi_f)/(PSi_s), which is produced by dividing the maximum peak PSi_f in the nitrogen-containing layer by the maximum peak PSi_s in the transparent substrate, is 1.09 or less.
    Type: Application
    Filed: January 8, 2019
    Publication date: March 25, 2021
    Applicant: HOYA CORPORATION
    Inventors: Hitoshi MAEDA, Ryo OHKUBO, Yasutaka HORIGOME
  • Publication number: 20210026235
    Abstract: A mask blank has a phase shift film of a structure in which a lower layer, an intermediate layer, and an upper layer are layered in this order. The lower layer is formed of a silicon-nitride-based material. The intermediate layer is formed of silicon-oxynitride-based material. The upper layer is formed of a silicon-oxide-based material. The nitrogen content of the lower layer is greater than those of the intermediate and the upper layers. The oxygen content of the upper layer is greater than those of the intermediate and the lower layers. The ratio of the film thickness of the intermediate layer with respect to the overall film thickness of the phase shift film is 0.15 or more, and the ratio of the film thickness of the upper layer with respect to the overall film thickness of the phase shift film is 0.10 or more.
    Type: Application
    Filed: March 15, 2019
    Publication date: January 28, 2021
    Applicant: HOYA CORPORATION
    Inventors: Hitoshi MAEDA, Osamu NOZAWA, Yasutaka HORIGOME
  • Publication number: 20200409252
    Abstract: Provided is a mask blank for a phase shift mask including an etching stopper film. A mask blank has a structure where a transparent substrate has layered thereon an etching stopper film and a phase shift film in this order, in which the phase shift film contains silicon and oxygen, in which the phase shift film has a refractive index n1 of 1.5 or more for light of 193 nm wavelength and an extinction coefficient k1 of 0.1 or less for light of 193 nm wavelength, in which the etching stopper film has a refractive index n2 of 2.6 or more for light of 193 nm wavelength and an extinction coefficient k2 of 0.4 or less for light of 193 nm wavelength, and the refractive index n2 and the extinction coefficient k2 satisfy at least one of k2?[(?0.188×n2)+0.879] and k2?[(2.75×n2)?6.945].
    Type: Application
    Filed: February 13, 2019
    Publication date: December 31, 2020
    Applicant: HOYA CORPORATION
    Inventors: Kazutake TANIGUCHI, Hitoshi MAEDA, Ryo OHKUBO
  • Publication number: 20200285144
    Abstract: In a mask blank in which a thin film formed of a material consisting of silicon and nitrogen is formed on a transparent substrate, when the thin film is analyzed by secondary ion mass spectrometry to obtain in-depth distribution of a secondary ion intensity of silicon in counts per second, a slope of the secondary ion intensity of silicon with respect to depth in a direction toward the transparent substrate is less than one hundred fifty counts per second per nanometer in an internal region of the thin film other than a substrate neighborhood region and a surface region.
    Type: Application
    Filed: September 6, 2018
    Publication date: September 10, 2020
    Applicant: HOYA CORPORATION
    Inventors: Hitoshi MAEDA, Hiroaki SHISHIDO
  • Publication number: 20190363331
    Abstract: A conductive member (61) is disposed near a side of the sealing plate (2) facing an electrode assembly with a first insulating member (10) disposed therebetween. The conductive member (61) has a conductive-member opening portion (61f) at a side thereof facing the electrode assembly. The conductive-member opening portion (61f) of the conductive member (61) is sealed by a deformation plate (62). The deformation plate (62) is connected to a first positive-electrode current collector (6a), which is electrically connected to positive electrode plates. The deformation plate (62) includes an annular rib (62b) that projects toward the electrode assembly at the outer peripheral edge thereof. The deformation plate (62) also includes an annular thin portion (62c) in a region inside the annular rib (62b).
    Type: Application
    Filed: January 23, 2018
    Publication date: November 28, 2019
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Ryoichi Wakimoto, Hitoshi Maeda, Shota Yamamoto
  • Publication number: 20190020009
    Abstract: A stack-type nonaqueous electrolyte secondary battery includes an electrode stack. The electrode stack is housed in an exterior body and includes a plurality of positive electrodes, a plurality of negative electrodes, and a separator. The positive electrodes and the negative electrodes are alternately arranged. The separator includes a fanfold portion including a plurality of intervening elements interposed between the positive electrodes and the negative electrodes. The separator includes a wrapper portion at a portion continuous with the fanfold portion. The wrapper portion extends out of the electrode stack and is disposed to cover at least part of a periphery of the electrode stack.
    Type: Application
    Filed: January 23, 2017
    Publication date: January 17, 2019
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hiroki Watanabe, Hitoshi Maeda, Katsutoshi Takeda
  • Publication number: 20190013507
    Abstract: A stack-type battery includes a casing, a stacked electrode assembly housed in the casing, and a terminal to which leads extending from single-plate cells of the stacked electrode assembly are connected. The stacked electrode assembly is divided into first and second electrode assembly blocks in a stacking direction. The terminal includes a first inner terminal portion to which the leads of the first electrode assembly block are connected, a second inner terminal portion to which the leads of the second electrode assembly block are connected, and an outer terminal portion continuous with base ends of the first and second inner terminal portions and extending outside the casing. The terminal has a T-shaped side profile.
    Type: Application
    Filed: August 23, 2016
    Publication date: January 10, 2019
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yoshitaka Shinyashiki, Hitoshi Maeda, Katsutoshi Takeda, Daisuke Ito
  • Publication number: 20180226626
    Abstract: A battery includes a stacked electrode body including a plurality of single plate cells and having a positive electrode lead-stacked part and a negative electrode lead-stacked part, the single plate cells each being formed by stacking a positive electrode and a negative electrode with a separator interposed therebetween, the positive electrode lead-stacked part being formed by stacking positive electrode leads of the positive electrodes on top of each other in stacking order of the single plate cells, the negative electrode lead-stacked part being formed by stacking negative electrode leads of the negative electrodes on top of each other in stacking order of the single plate cells; a positive electrode terminal; and a negative electrode terminal.
    Type: Application
    Filed: August 23, 2016
    Publication date: August 9, 2018
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Hitoshi Maeda, Yoshitaka Shinyashiki
  • Publication number: 20150037658
    Abstract: In a stack type battery containing a stacked electrode assembly in which a positive electrode plate having a positive electrode current collector tab extending therefrom and a negative electrode plate having a negative electrode current collector tab extending therefrom are alternately stacked interposing a separator therebetween, a through portion for positioning that passes through in the thickness direction is formed in at least one of the positive and negative electrode current collector tab, and the width at the through portion-unformed position of the positive or negative electrode collector tab is 50 mm or more, and the width of the through portion for positioning is 10% or less of the width at the through portion-unformed position of the positive or negative electrode current collector tab.
    Type: Application
    Filed: March 21, 2013
    Publication date: February 5, 2015
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Hitoshi Maeda, Yoshio Goda, Masayuki Fujiwara, Yoshitaka Shinyashiki, Yoshihiro Matsushita
  • Publication number: 20130004827
    Abstract: Provided is a nonaqueous electrolyte secondary battery. The stacked electrode assembly contains positive electrode plates in which no positive electrode active material layer is formed on at least one side of the positive electrode substrate and negative electrode plates in which no negative electrode active material layer is formed on at least one side of the negative electrode substrate. Such positive electrode surfaces where no positive electrode active material layer is formed are opposed, with a separator interposed, to such negative electrode surfaces where no negative electrode active material layer is formed. The separator interposed between the positive electrode active material layers and negative electrode active material layers has a layer containing ceramic. The separator interposed between the surfaces where no positive electrode active material layer is formed and the surfaces where no negative electrode active material layer is formed has no layer containing ceramic.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 3, 2013
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Shinya Miyazaki, Kazunori Donoue, Hitoshi Maeda
  • Patent number: 8323824
    Abstract: A laminate type battery includes a laminate battery case and an electrode assembly. The laminate battery case includes two laminate films each having a metal layer and plastic layers provided on both faces of the metal layer, and has a welded portion in which peripheral edges of the two laminate films are welded to each other. The electrode assembly is enclosed in the laminate battery case, and has a positive electrode plate, a negative electrode plate, and a separator disposed therebetween. An internal gas pressure sensing portion, in which the inner plastic layer of each of the laminate films is absent and the metal layers are in contact with each other so as to be in an electrically conductive state, is formed in a portion of the welded portion. A voltage detection hole, in which the outer plastic layer is absent and the metal layer is exposed, is formed in a surface of each of the two laminate films.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: December 4, 2012
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Yoshitaka Shinyashiki, Atsuhiro Funahashi, Hitoshi Maeda, Masayuki Fujiwara
  • Patent number: 8309247
    Abstract: A battery module has a plurality of prismatic batteries (2) stacked in a thickness direction. Two plates (3, 4) are provided between each of the batteries (2), and each of the batteries (2) is compressed by shifting the two plates (3, 4) in directions away from each other. A pair of frame members (10, 20) having opposing surfaces (11, 21) extending along the stacking direction of the batteries (2) are disposed face to face so as to sandwich the batteries (2) in a direction perpendicular to the stacking direction of the batteries. Wedge-shaped spacers (12, 22) inserted between the two plates (3, 4) are provided respectively on the opposing surfaces. By narrowing the gap between the pair of frame members (10, 20), the spacers (12, 22) are allowed to advance inwardly between the two plates (3, 4) so that the two plates are shifted in directions away from each other, whereby the batteries are compressed.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: November 13, 2012
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Yoshitaka Shinyashiki, Masayuki Fujiwara, Hitoshi Maeda, Atsuhiro Funahashi
  • Publication number: 20120196172
    Abstract: A stack type battery has a positive electrode plate (1) having a positive electrode active material layer (1a) formed on at least one side of a current collector made of a metal plate and a positive electrode current collector lead (11) provided in a portion thereof, the positive electrode plate (1) and the positive electrode current collector lead (11) facing a negative electrode plate across a separator (3a). A protective layer (13) made of a material having a lower electron conductivity than the metal of the current collector and being non-insulative is formed at a portion of the positive electrode plate (1) between the positive electrode current collector lead (11) and the separator (3a). The positive, electrode current collector lead (11) and the separator (3a) are joined to each other by the protective layer (13).
    Type: Application
    Filed: January 30, 2012
    Publication date: August 2, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Hitoshi Maeda, Yoshitaka Shinyashiki, Kazunori Donoue, Masayuki Fujiwara
  • Publication number: 20120077075
    Abstract: A stack type battery has a stacked electrode assembly (10) in which a plurality of positive electrode plates (1) and a plurality of negative electrode plates (2) are alternately stacked one another across separators. Each one of pairs of the separators adjacent to each other in a stacking direction has a bonded portion (4) in which the separators are bonded to each other in at least a portion of a perimeter portion thereof, so as to form a pouch-type separator (3). The proportion of the bonded portion (4) of one of the pouch-type separators 3 (low blocking rate pouch-type separator (3L)) located in a stacking direction-wise central region of the stacked electrode assembly (10) is made smaller than the proportion of the bonded portion (4) of each of the pouch-type separators 3 (high blocking rate pouch-type separator 3H) located in both stacking direction-wise end portions of the stacked electrode assembly (10).
    Type: Application
    Filed: September 23, 2011
    Publication date: March 29, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Yuji Tani, Hitoshi Maeda, Masayuki Fujiwara, Masao Kusukawa, Yoshitaka Shinyashiki, Atsuhiro Funahashi