Patents by Inventor Makoto Endo
Makoto Endo 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).
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Publication number: 20150210813Abstract: A prepreg includes; sizing agent-coated carbon fibers coated with a sizing agent; and a thermosetting resin composition impregnated into the sizing agent-coated carbon fibers. The sizing agent includes an aliphatic epoxy compound (A) and an aromatic compound (B) at least containing an aromatic epoxy compound (B1). The thermosetting resin composition includes a thermosetting resin (D) and a latent hardener (E), and optionally includes an additive (F) other than the thermosetting resin (D) and the latent hardener (E). The (a)/(b) ratio is within a predetermined range where (a) is the height of a component at a binding energy assigned to CHx, C—C, and C?C and (b) is the height of a component at a binding energy assigned to C—O in a C1s core spectrum of the surfaces of the sizing agent-coated carbon fibers analyzed by X-ray photoelectron spectroscopy.Type: ApplicationFiled: July 16, 2013Publication date: July 30, 2015Applicant: TORAY INDUSTRIES, INC.Inventors: Nobuyuki Arai, Tomoko Ichikawa, Hiroshi Taiko, Makoto Endo, Masanobu Kobayashi, Jun Misumi
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Publication number: 20150200055Abstract: The present invention is aimed to improve the poor insulation of the laminate-type ceramic electronic component having dielectric ceramic layers of 0.5 ?m or less. A laminate-type ceramic electronic component which is a laminated body having a laminated structure formed by laminating the first ceramic parts and the internal electrode layers alternately. The first ceramic parts have a main ingredient of ABO3 representing a perovskite-type crystal in which site A contains at least Ba and site B contains at least Ti. The laminate-type ceramic electronic component has external electrodes which are connected with the internal electrodes. The end edge parts of the internal electrodes other than the end connected with the external electrodes are connected with the second ceramic parts. The second ceramic parts contain aluminum oxide as a main ingredient.Type: ApplicationFiled: January 8, 2015Publication date: July 16, 2015Inventors: Keisuke ISHIDA, Koichi YAMAGUCHI, Makoto ENDO, Shimpei TANABE
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Patent number: 9083310Abstract: A laminated structural type balun includes a low pass filter that is provided between an unbalanced terminal inputting and outputting unbalanced signals and a first balanced terminal inputting and outputting balanced signals and includes a first coil and a first capacitor; and a high pass filter that is provided between the unbalanced terminal and a second balanced terminal inputting and outputting balanced signals and includes a second capacitor and a second coil. The first capacitor and the second capacitor are arranged in a different area from the first coil and the second coil in a laminated direction.Type: GrantFiled: July 3, 2012Date of Patent: July 14, 2015Assignee: TDK CORPORATIONInventor: Makoto Endo
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Patent number: 9077059Abstract: A thin film balun that can be made smaller and thinner while maintaining required balun characteristics is provided. A thin film balun 1 includes: an unbalanced transmission line UL including a first coil portion C1 and a second coil portion C2; a balanced transmission line BL including a third coil portion C3 and a fourth coil portion C4 that are positioned facing and magnetically coupled to the first coil portion C1 and the second coil portion C2 respectively; an unbalanced terminal UT connected to the first coil portion C1; a ground terminal G connected to the second coil portion C2 via a C component D; and an electrode D2 connected to the ground terminal G and facing a part of the second coil portion C2. The C component D is formed by the electrode D2 and the part D1 of the second coil portion C2.Type: GrantFiled: September 19, 2013Date of Patent: July 7, 2015Assignee: TDK CORPORATIONInventor: Makoto Endo
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Patent number: 9076599Abstract: A compact laminated ceramic electronic component having superior moisture resistance and electrical properties is provided. A laminated ceramic electronic component 1 includes an inner layer portion that contains a plurality of dielectric layers 2a and internal electrode layers 3 comprising Ni as a main component that are laminated alternately, and a pair of dielectric outer layer portions 2b which sandwich the inner layer portions. And Ni particles are segregated in the dielectric outer layer portions 2b. And the amount of Ni particles existing in the dielectric layers 2a is smaller than that in the dielectric outer layer portions 2b.Type: GrantFiled: October 12, 2012Date of Patent: July 7, 2015Assignee: TDK CorporationInventors: Makoto Endo, Hirobumi Tanaka, Osamu Kido
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Publication number: 20150184333Abstract: A prepreg is formed by impregnating sizing agent-coated carbon fibers coated with a sizing agent with a thermosetting resin composition. The sizing agent contains an aliphatic epoxy compound (A) and an aromatic compound (B) at least containing an aromatic epoxy compound (B1). The sizing agent-coated carbon fibers has an (a)/(b) ratio of 0.50 to 0.90 where (a) is a height (cps) of a component at a binding energy (284.6 eV) assigned to CHx, C—C, and C?C and (b) is a height (cps) of a component at a binding energy (286.1 eV) assigned to C—O in a C1s core spectrum of a surface of the sizing agent applied onto the carbon fibers analyzed by X-ray photoelectron spectroscopy using AlK?1,2 as an X-ray source at a photoelectron takeoff angle of 15°.Type: ApplicationFiled: July 16, 2013Publication date: July 2, 2015Applicant: TORAY INDUSTRIES, INC.Inventors: Nobuyuki Arai, Tomoko Ichikawa, Hiroshi Taiko, Makoto Endo, Masanobu Kobayashi, Jun Misumi
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Publication number: 20150055273Abstract: A laminate-type ceramic electric component such as laminated ceramic capacitor which has excellent mechanical strength and also has thermal shock resistance at the same time is provided. A laminate-type ceramic electronic component comprises an inner layer part, in which dielectric layers comprising ABO3 (which represents a perovskite crystal in which A contains at least Ba and B contains at least Ti) as a main component and internal electrode layers are alternately laminated; and a pair of outer layer parts which sandwich the inner layer part, wherein the outer layer parts comprise a continuous film containing a Ba—Si—Ti—O based crystal phase.Type: ApplicationFiled: August 18, 2014Publication date: February 26, 2015Inventors: Makoto ENDO, Koichi YAMAGUCHI, Keisuke ISHIDA
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Publication number: 20140342144Abstract: The carbon fiber forming raw material is a carbon fiber forming raw material (Z) as a prepreg including sizing agent-coated carbon fibers and a thermosetting resin or a carbon fiber forming raw material (Y) as a forming material that includes sizing agent-coated carbon fibers and has a woven fabric form or a braid form. The sizing agent includes components (A) and (B). The component (A) is an epoxy compound having two or more epoxy groups or two or more types of functional groups. The component (B) is one or more compounds selected from the group consisting of a tertiary amine compound, a tertiary amine salt, a quaternary ammonium salt, a quaternary phosphonium salt, and a phosphine compound. The component (B) is contained in an amount of 0.1 to 25 parts by mass relative to 100 parts by mass of the component (A).Type: ApplicationFiled: November 12, 2012Publication date: November 20, 2014Inventors: Yoshifumi Nakayama, Toshiya Kamae, Daigo Kobayashi, Makoto Endo
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Publication number: 20140329075Abstract: Sizing agent-coated carbon fibers includes: a sizing agent including an aliphatic epoxy compound (A) and at least containing an aromatic epoxy compound (B1) as an aromatic compound (B); and carbon fibers coated with the sizing agent, wherein the sizing agent-coated carbon fibers have an (a)/(b) ratio of 0.50 to 0.90 where (a) is a height (cps) of a component at a binding energy (284.6 eV) assigned to CHx, C—C, and C?C and (b) is a height (cps) of a component at a binding energy (286.1 eV) assigned to C—O in a C1s core spectrum of a surface of the sizing agent applied onto the carbon fibers analyzed by X-ray photoelectron spectroscopy using AlK?1,2 as an X-ray source at a photoelectron takeoff angle of 15°.Type: ApplicationFiled: December 18, 2012Publication date: November 6, 2014Inventors: Tomoko Ichikawa, Makoto Endo, Hiroshi Taiko, Masanobu Kobayashi, Nobuyuki Arai, Jun Misumi
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Patent number: 8822029Abstract: A polyacrylonitrile-based polymer which satisfies at least one of [a] to [d]: [a] Z-average molecular weight (Mz) determined by gel-permeation chromatograph is 800,000 to 6,000,000 and degree of polydispersity (Mz/Mw) (Mw denotes weight average molecular weight) is 3.0 to 10.0; [b] Z+1-average molecular weight (Mz+1) determined by GPC method is 3,000,000 to 10,000,000 and degree of polydispersity (Mz+1/Mw) is 6.0 to 25.0; [c] Mzm determined by gel-permeation chromatograph multi-angle laserlight scattering photometry is 400,000 to 1,000,000 and degree of polydispersity (Mzm/Mwm) is 3.0 to 10.0; and [d] Z-average radius of gyration (Rz) determined by gel-permeation chromatograph multi-angle laserlight scattering photometry is 25 to 45 nm and its ratio to weight average radius of gyration (Rz/Rw) is 1.3 to 2.5.Type: GrantFiled: October 15, 2007Date of Patent: September 2, 2014Assignee: Toray Industries, Inc.Inventors: Fumihiko Tanaka, Makoto Endo, Yuuki Okishima
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Publication number: 20140228519Abstract: Provided are a carbon fiber-reinforced thermoplastic resin composition excellent in interfacial adhesion between carbon fiber and a thermoplastic resin and excellent in dynamic characteristics, and a molding material, a prepreg, and a method for producing the same. The carbon fiber-reinforced thermoplastic resin composition includes the following components (A) and (B), carbon fiber and a thermoplastic resin; component (A): (A1) a bifunctional or higher functional epoxy compound and/or (A2) an epoxy compound which has a monofunctional or higher epoxy group and has one or more taypes of functional groups selected from a hydroxyl group, an amide group, an imide group, a urethane group, a urea group, a sulfonyl group and a sulfo group; and component (B): 0.Type: ApplicationFiled: September 21, 2012Publication date: August 14, 2014Inventors: Yoshifumi Nakayama, Toshiya Kamae, Daigo Kobayashi, Makoto Endo
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Patent number: 8674045Abstract: A carbon fiber precursor fiber having a weight average molecular weight Mw(F) of 200,000 to 700,000 and a degree of polydispersity MZ(F)/Mw(F), wherein MZ(F) indicates Z-average molecular weight of the fiber, of 2 to 5.Type: GrantFiled: April 10, 2009Date of Patent: March 18, 2014Assignee: Toray Industries, Inc.Inventors: Fumihiko Tanaka, Makoto Endo
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Patent number: 8652984Abstract: A dielectric ceramic composition comprising a main component and at least one or more subcomponent elements has a dielectric particle and a grain boundary. The dielectric particle has a main component phase substantially composed of the main component, and a diffusive phase around the main component phase where at least one selected from the subcomponent elements is diffused, a local minimal value of Cs is located at an outside edge side with respect to a position of the local maximum value of Cs, and Cs is increased from a position of the local minimal value of Cs toward the outside edge, when the dielectric particle is cut on an arbitrary cutting plane including the main component phase, and Cs is defined as a concentration of one or more elements selected from the subcomponent elements in an arbitrary position in the dielectric particle.Type: GrantFiled: March 9, 2012Date of Patent: February 18, 2014Assignee: TDK CorporationInventors: Makoto Endo, Osamu Kido, Hirobumi Tanaka, Taisuke Masuko, Yusuke Sato
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Patent number: 8653904Abstract: A thin film balun of the present invention comprises: an unbalanced transmission line UL including a first line portion L1 and a second line portion L2; a balanced transmission line BL including a third line portion L3 and a fourth line portion L4 that are positioned facing the first line portion L1 and the second line portion L2 and electromagnetically coupled to the first line portion L1 and the second line portion L2, respectively; an unbalanced terminal UT connected to an end of the first line portion L1; a first balanced terminal BT1 connected to the third line portion L3; a second balanced terminal BT2 connected to the fourth line portion L4; and a ground terminal G connected to the third line portion L3 and the fourth line portion L4, wherein the ground terminal G has an extension that extends from the ground terminal G to an area at the unbalanced terminal UT side.Type: GrantFiled: June 21, 2011Date of Patent: February 18, 2014Assignee: TDK CorporationInventor: Makoto Endo
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Patent number: 8648667Abstract: A thin film balun that can be made smaller and thinner while maintaining required balun characteristics is provided. A thin film balun 1 includes: an unbalanced transmission line UL including a first coil portion C1 and a second coil portion C2; a balanced transmission line BL including a third coil portion C3 and a fourth coil portion C4 that are positioned facing and magnetically coupled to the first coil portion C1 and the second coil portion C2 respectively; an unbalanced terminal UT connected to the first coil portion C1; a ground terminal G connected to the second coil portion C2 via a C component D; and an electrode D2 connected to the ground terminal G and facing a part of the second coil portion C2. The C component D is formed by the electrode D2 and the part D1 of the second coil portion C2.Type: GrantFiled: June 25, 2010Date of Patent: February 11, 2014Assignee: TDK CorporationInventor: Makoto Endo
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Publication number: 20140022028Abstract: A thin film balun that can be made smaller and thinner while maintaining required balun characteristics is provided. A thin film balun 1 includes: an unbalanced transmission line UL including a first coil portion C1 and a second coil portion C2; a balanced transmission line BL including a third coil portion C3 and a fourth coil portion C4 that are positioned facing and magnetically coupled to the first coil portion C1 and the second coil portion C2 respectively; an unbalanced terminal UT connected to the first coil portion C1; a ground terminal G connected to the second coil portion C2 via a C component D; and an electrode D2 connected to the ground terminal G and facing a part of the second coil portion C2. The C component D is formed by the electrode D2 and the part D1 of the second coil portion C2.Type: ApplicationFiled: September 19, 2013Publication date: January 23, 2014Applicant: TDK CORPORATIONInventor: Makoto ENDO
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Publication number: 20140009241Abstract: A laminated structural type balun includes a low pass filter that is provided between an unbalanced terminal inputting and outputting unbalanced signals and a first balanced terminal inputting and outputting balanced signals and includes a first coil and a first capacitor; and a high pass filter that is provided between the unbalanced terminal and a second balanced terminal inputting and outputting balanced signals and includes a second capacitor and a second coil. The first capacitor and the second capacitor are arranged in a different area from the first coil and the second coil in a laminated direction.Type: ApplicationFiled: July 3, 2012Publication date: January 9, 2014Applicant: TDK CORPORATIONInventor: Makoto ENDO
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Patent number: 8582277Abstract: A multilayer ceramic electronic component comprising an element body in which a dielectric layer and an internal electrode layer are stacked. The dielectric layer is constituted from a dielectric ceramic composition including; a compound having a perovskite structure expressed by a formula of ABO3 (A is at least one selected from Ba, Ca, and Sr; B is at least one selected from Ti, Zr, and Hf); an oxide of Mg; an oxide of rare earth elements including Sc and Y; and an oxide including Si. The dielectric ceramic composition comprises a plurality of dielectric particles and a grain boundary present in between the dielectric particles. In the grain boundary, when content ratios of Mg and Si are set to D(Mg) and D(Si) respectively, D(Mg) is 0.2 to 1.8 wt % in terms of MgO, and D(Si) is 0.4 to 8.0 wt % in terms of SiO2.Type: GrantFiled: November 21, 2011Date of Patent: November 12, 2013Assignee: TDK CorporationInventors: Hirobumi Tanaka, Makoto Endo, Satoko Ueda, Daisuke Ueda, Shogo Murosawa, Daisuke Yoshida, Kenta Ono, Minoru Ogasawara, Tatsuya Kikuchi
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Patent number: 8456800Abstract: A multilayer ceramic electronic component comprises an element body obtained by stacking dielectric layers (thickness t1) and electrode layers (thickness t2). The dielectric layer includes a compound expressed by ABO3 (A includes Ba, and may include Ca or Sr; and B includes Ti, and may include Zr or Hf), and includes 0.75 to 2.0 moles of MgO, 0.4 to 1.0 mole of an oxide of Y, Dy, Ho and the like in terms of the oxide, and 0.4 to 0.8 mole of SiO2 per 100 moles of the compound. A segregation phase containing Mg is formed in at least a part of an electrode missing portion. Line coverage of the electrode layer is 60 to 90% and relations of 0.3 ?m?t1?2.0 and 0.3 ?m?t2<1.0 ?m are fulfilled.Type: GrantFiled: July 25, 2011Date of Patent: June 4, 2013Assignee: TDK CorporationInventors: Toshihiko Kaneko, Ryutaro Yamazaki, Taisuke Masuko, Yusuke Sato, Yasushi Matsuyama, Yasuo Watanabe, Masakazu Hosono, Saori Takeda, Hirobumi Tanaka, Makoto Endo
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Publication number: 20130089736Abstract: Disclosed is a method for producing carbon fibers which exhibit excellent adhesion to a matrix resin and have excellent processability. Specifically disclosed is a method for producing a sizing agent-coated carbon fibers, wherein at least one kind of sizing agent that is selected from the group consisting of sizing agents (a), (b) and (c) described below is used for coating, in each of said sizing agents a bi- or higher functional epoxy compound (A1) and/or an epoxy compound (A2) being used as a component (A), and said epoxy compound (A2) having a mono- or higher functional epoxy group and at least one functional group that is selected from among a hydroxyl group, an amide group, an imide group, a urethane group, a urea group, a sulfonyl group and a sulfo group. The method for producing a sizing agent-coated carbon fibers is characterized in that the sizing agent is applied to carbon fibers and the resulting is subjected to a heat treatment within the temperature range of 160-260° C. for 30-600 seconds.Type: ApplicationFiled: June 24, 2011Publication date: April 11, 2013Applicant: TORAY INDUSTRIES, INC.Inventors: Yoshifumi Nakayama, Toshiya Kamae, Daigo Kobayashi, Makoto Endo