Patents by Inventor Kouji Nishimura

Kouji Nishimura 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: 11971186
    Abstract: An information processing apparatus performs a first estimation process based on a data set including a combination of information indicating a situation and information on power consumption when a first air conditioner, installed in a predetermined location, has been operated. The first estimation process is a process of estimating information on power consumption when the first air conditioner, installed in the predetermined location, is operated in a predetermined situation.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: April 30, 2024
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tadafumi Nishimura, Kouji Nagasawa
  • Patent number: 11570890
    Abstract: A ceramic circuit substrate having high bonding performance and excellent thermal cycling resistance properties, wherein a ceramic substrate and a copper plate are bonded by a braze material containing Ag and Cu, at least one active metal component selected from Ti and Zr, and at least one element selected from among In, Zn, Cd, and Sn, wherein a braze material layer, after bonding, has a continuity ratio of 80% or higher and a Vickers hardness of 60 to 85 Hv.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: January 31, 2023
    Assignee: DENKA COMPANY LIMITED
    Inventors: Yuta Tsugawa, Kouji Nishimura, Yusaku Harada, Ryota Aono, Shoji Iwakiri
  • Patent number: 11483926
    Abstract: A ceramic circuit substrate having high bonding performance and excellent thermal cycling resistance properties, having a circuit pattern provided on a ceramic substrate with a braze material layer interposed therebetween, and a protruding portion formed by the braze material layer protruding from the outer edge of the circuit pattern, wherein: the braze material layer includes Ag, Cu, Ti, and Sn or In; and an Ag-rich phase is formed continuously for 300 ?m or more, towards the inside, from an outer edge of the protruding portion, along a bonding interface between the ceramic substrate and the circuit pattern, and has a bonding void ratio of 1.0% or less.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: October 25, 2022
    Assignee: DENKA COMPANY LIMITED
    Inventors: Akimasa Yuasa, Yusaku Harada, Takahiro Nakamura, Shuhei Morita, Kouji Nishimura
  • Patent number: 11452204
    Abstract: A ceramic circuit substrate and power module with excellent heat cycle resistance characteristics, which is formed by bonding a ceramic substrate and a copper plate via a brazing material including Ag, Cu, and an active metal, wherein the bond void fraction is no greater than 1.0% and the diffusion distance of the Ag, which is a brazing material component, is 5-20 ?m. Also, a method for manufacturing a ceramic circuit substrate characterized in that the heating time in a temperature range 400-700° C. in a process for raising the temperature to a bonding temperature is 5-30 minutes and bonding is performed by maintaining the bonding temperature at 720-800° C. for 5-30 minutes.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: September 20, 2022
    Assignee: DENKA COMPANY LIMITED
    Inventors: Yusaku Harada, Akimasa Yuasa, Takahiro Nakamura, Shuhei Morita, Kouji Nishimura
  • Patent number: 11430727
    Abstract: A ceramic circuit substrate is suitable for silver nanoparticle bonding of semiconductor elements and has excellent close adhesiveness with a power module sealing resin. A ceramic circuit substrate has a copper plate bonded, by a braze material, to both main surfaces of a ceramic substrate including aluminum nitride or silicon nitride, the copper plate of at least one of the main surfaces being subjected to silver plating, wherein: the copper plate side surfaces are not subjected to silver plating; the thickness of the silver plating is 0.1 ?m to 1.5 ?m; and the arithmetic mean roughness Ra of the surface roughness of the circuit substrate after silver plating is 0.1 ?m to 1.5 ?m.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: August 30, 2022
    Assignee: DENKA COMPANY LIMITED
    Inventors: Ryota Aono, Fumihiro Nakahara, Kouji Nishimura, Yuta Tsugawa
  • Patent number: 11277908
    Abstract: A ceramic circuit substrate having a metal plate bonded, by a bonding braze material, to at least one main surface of a ceramic substrate, wherein the bonding braze material contains, as metal components, 0.5 to 4.0 parts by mass of at least one active metal selected from among titanium, zirconium, hafnium, and niobium, with respect to 100 parts by mass, in total, of 93.0 to 99.4 parts by mass of Ag, 0.1 to 5.0 parts by mass of Cu, and 0.5 to 2.0 parts by mass of Sn; and Cu-rich phases in a bonding braze material layer structure between the ceramic substrate and the metal plate have an average size of 3.5 ?m or less and a number density of 0.015/?m2 or higher. A method for producing a ceramic circuit substrate includes bonding at a temperature of 855 to 900° C. for a retention time of 10 to 60 minutes.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: March 15, 2022
    Assignee: DENKA COMPANY LIMITED
    Inventors: Akimasa Yuasa, Yusaku Harada, Takahiro Nakamura, Shuhei Morita, Kouji Nishimura
  • Publication number: 20210176859
    Abstract: A ceramic circuit substrate having a metal plate bonded, by a bonding braze material, to at least one main surface of a ceramic substrate, wherein the bonding braze material contains, as metal components, 0.5 to 4.0 parts by mass of at least one active metal selected from among titanium, zirconium, hafnium, and niobium, with respect to 100 parts by mass, in total, of 93.0 to 99.4 parts by mass of Ag, 0.1 to 5.0 parts by mass of Cu, and 0.5 to 2.0 parts by mass of Sn; and Cu-rich phases in a bonding braze material layer structure between the ceramic substrate and the metal plate have an average size of 3.5 ?m or less and a number density of 0.015/?m2 or higher. A method for producing a ceramic circuit substrate includes bonding at a temperature of 855 to 900° C. for a retention time of 10 to 60 minutes.
    Type: Application
    Filed: May 29, 2018
    Publication date: June 10, 2021
    Applicant: DENKA COMPANY LIMITED
    Inventors: Akimasa YUASA, Yusaku HARADA, Takahiro NAKAMURA, Shuhei MORITA, Kouji NISHIMURA
  • Publication number: 20210176860
    Abstract: A ceramic circuit substrate having high bonding performance and excellent thermal cycling resistance properties, wherein a ceramic substrate and a copper plate are bonded by a braze material containing Ag and Cu, at least one active metal component selected from Ti and Zr, and at least one element selected from among In, Zn, Cd, and Sn, wherein a braze material layer, after bonding, has a continuity ratio of 80% or higher and a Vickers hardness of 60 to 85 Hv.
    Type: Application
    Filed: May 29, 2018
    Publication date: June 10, 2021
    Applicant: DENKA COMPANY LIMITED
    Inventors: Yuta TSUGAWA, Kouji NISHIMURA, Yusaku HARADA, Ryota AONO, Shoji IWAKIRI
  • Publication number: 20210024563
    Abstract: A method for separating steviol glycoside, including: a separating step 55 of performing a continuous liquid chromatography for continuously separating at least one type of steviol glycoside by allowing a liquid to be separated containing plural types of steviol glycosides to pass through a separating agent in which polyethylene imine is immobilized to a carrier.
    Type: Application
    Filed: March 27, 2019
    Publication date: January 28, 2021
    Applicants: Mitsubishi Chemical Aqua Solutions Co., Ltd., Mitsubishi Chemical Corporation
    Inventors: Kouji NISHIMURA, Takahiro WATANABE, Tadashi ADACHI
  • Patent number: 10796925
    Abstract: Disclosed herein is a ceramic circuit substrate for a power module obtained by applying an insulating resin for preventing solder flow and chip displacement and an insulating resin for preventing partial discharges and the lowering of insulation to a main surface of a metal circuit and to the outer periphery of the metal circuit or between metal circuits, respectively. Also disclosed herein are methods for manufacturing a ceramic circuit substrate for a power module.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: October 6, 2020
    Assignee: Denka Company Limited
    Inventors: Akimasa Yuasa, Kouji Nishimura
  • Publication number: 20200185320
    Abstract: A ceramic circuit substrate is suitable for silver nanoparticle bonding of semiconductor elements and has excellent close adhesiveness with a power module sealing resin. A ceramic circuit substrate has a copper plate bonded, by a braze material, to both main surfaces of a ceramic substrate including aluminum nitride or silicon nitride, the copper plate of at least one of the main surfaces being subjected to silver plating, wherein: the copper plate side surfaces are not subjected to silver plating; the thickness of the silver plating is 0.1 ?m to 1.5 ?m; and the arithmetic mean roughness Ra of the surface roughness of the circuit substrate after silver plating is 0.1 ?m to 1.5 ?m.
    Type: Application
    Filed: June 7, 2018
    Publication date: June 11, 2020
    Applicant: DENKA COMPANY LIMITED
    Inventors: Ryota AONO, Fumihiro NAKAHARA, Kouji NISHIMURA, Yuta TSUGAWA
  • Publication number: 20200163210
    Abstract: A ceramic circuit substrate having high bonding performance and excellent thermal cycling resistance properties, having a circuit pattern provided on a ceramic substrate with a braze material layer interposed therebetween, and a protruding portion formed by the braze material layer protruding from the outer edge of the circuit pattern, wherein: the braze material layer includes Ag, Cu, Ti, and Sn or In; and an Ag-rich phase is formed continuously for 300 ?m or more, towards the inside, from an outer edge of the protruding portion, along a bonding interface between the ceramic substrate and the circuit pattern, and has a bonding void ratio of 1.0% or less.
    Type: Application
    Filed: July 25, 2018
    Publication date: May 21, 2020
    Applicant: DENKA COMPANY LIMITED
    Inventors: Akimasa YUASA, Yusaku HARADA, Takahiro NAKAMURA, Shuhei MORITA, Kouji NISHIMURA
  • Publication number: 20200128664
    Abstract: A ceramic circuit substrate and power module with excellent heat cycle resistance characteristics, which is formed by bonding a ceramic substrate and a copper plate via a brazing material including Ag, Cu, and an active metal, wherein the bond void fraction is no greater than 1.0% and the diffusion distance of the Ag, which is a brazing material component, is 5-20 ?m. Also, a method for manufacturing a ceramic circuit substrate characterized in that the heating time in a temperature range 400-700° C. in a process for raising the temperature to a bonding temperature is 5-30 minutes and bonding is performed by maintaining the bonding temperature at 720-800° C. for 5-30 minutes.
    Type: Application
    Filed: April 24, 2018
    Publication date: April 23, 2020
    Applicant: DENKA COMPANY LIMITED
    Inventors: Yusaku HARADA, Akimasa YUASA, Takahiro NAKAMURA, Shuhei MORITA, Kouji NISHIMURA
  • Patent number: 10532984
    Abstract: A pyridonecarboxylic acid derivative or a salt thereof is represented by Formula (1), where R1 is hydrogen, a halogen atom, a lower alkyl group, or an amino group; R2 is —NH—R6, where R6 is hydrogen, a lower alkyl group, an amino lower alkyl group, or the like; —O—R7, where R7 is hydrogen, a lower alkyl group, or the like; —(CH2)m—R8, where R8 is an amino group or the like, m is 1, 2, 3 or 4; or a cyclic amino group of Formula (2), where Y represents NH or C—R9aR9b, where R9a and R9b are each independently hydrogen, a lower alkyl group, an amino group, a lower alkyl amino group, or the like; n and p are 1 or 2; R3 is hydrogen, a halogen atom, a lower alkyl group, or the like; R4 is hydrogen or a carboxyl group-protecting group; and R5 is hydrogen or a hydroxyl group-protecting group.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: January 14, 2020
    Assignee: WAKUNAGA PHARMACEUTICAL CO., LTD.
    Inventors: Tomohiko Kinoshita, Yasuhiro Kuramoto, Satoshi Inoue, Kouji Nishimura, Tatsuya Hirano, Mai Arai, Asuka Sakurai, Daichi Kazamori, Ayuka Sasaki
  • Publication number: 20190276407
    Abstract: A pyridonecarboxylic acid derivative or a salt thereof is represented by Formula (1), where R1 is hydrogen, a halogen atom, a lower alkyl group, or an amino group; R2 is —NH—R6, where R6 is hydrogen, a lower alkyl group, an amino lower alkyl group, or the like; —O—R7, where R7 is hydrogen, a lower alkyl group, or the like; —(CH2)m—R8, where R8 is an amino group or the like, m is 1, 2, 3 or 4; or a cyclic amino group of Formula (2), where Y represents NH or C—R9aR9b, where R9a and R9b are each independently hydrogen, a lower alkyl group, an amino group, a lower alkyl amino group, or the like; n and p are 1 or 2; R3 is hydrogen, a halogen atom, a lower alkyl group, or the like; R4 is hydrogen or a carboxyl group-protecting group; and R5 is hydrogen or a hydroxyl group-protecting group.
    Type: Application
    Filed: June 14, 2017
    Publication date: September 12, 2019
    Applicant: WAKUNAGA PHARMACEUTICAL CO., LTD.
    Inventors: Tomohiko KINOSHITA, Yasuhiro KURAMOTO, Satoshi INOUE, Kouji NISHIMURA, Tatsuya HIRANO, Mai ARAI, Asuka SAKURAI, Daichi KAZAMORI, Ayuka SASAKI
  • Publication number: 20190115228
    Abstract: [Problem] To obtain a ceramic circuit substrate for a power module wherein an insulating resin for preventing solder flow and chip displacement and an insulating resin for preventing partial discharges and lowering of insulation are applied, without lowering productivity or worsening partial discharge properties, or lowering the insulating properties due to positional displacement of the insulating resins. [Solution] A ceramic circuit substrate for a power module is obtained by applying an insulating resin for preventing solder flow and chip displacement and an insulating resin for preventing partial discharges and the lowering of insulation to a main surface of a metal circuit and to the outer periphery of the metal circuit or between metal circuits, respectively.
    Type: Application
    Filed: April 25, 2017
    Publication date: April 18, 2019
    Applicant: Denka Company Limited
    Inventors: Akimasa YUASA, Kouji NISHIMURA
  • Patent number: 8507072
    Abstract: An antenna apparatus used in a wireless communication medium or a wireless communication medium processing apparatus constructed by a constitution of including a magnetic member in which a magnetic ceramic powder is used as a major component thereof and which is provided with flexibility; an antenna formed at a surface or inside of the magnetic member, and a matching circuit of the antenna formed at the surface or the inside of the magnetic member.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: August 13, 2013
    Assignee: Panasonic Corporation
    Inventors: Hidetsugu Fujimoto, Kengo Shiiba, Hiromi Sakita, Kouji Nishimura, Hatsuhiro Yano, Yoshihiko Takayama, Yoshitaka Mizoguchi, Yumie Watanabe
  • Patent number: 8173318
    Abstract: The fuel reservoir for a fuel cell is a fuel reservoir detachably connected with a fuel cell main body, and it is equipped with a fuel-storing vessel of a tube type for storing a liquid fuel and a fuel discharge part; the fuel discharge part is provided with a valve for sealing communication between the inside and the outside of the above fuel-storing vessel; and a follower which seals the liquid fuel and moves as the liquid fuel is consumed is disposed in the rear end part of the liquid fuel stored. The valve assumes a structure in which a slit is formed in an elastic material and a structure in which a valve member is pressed by a resilient body.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: May 8, 2012
    Assignees: Mitsubishi Pencil Co., Ltd., Casio Computer Co., Ltd.
    Inventors: Takahiro Osada, Yoshihisa Suda, Toshimi Kamitani, Kunitaka Yamada, Kouji Nishimura, Yasunari Kabasawa
  • Publication number: 20110151234
    Abstract: An antenna apparatus used in a wireless communication medium or a wireless communication medium processing apparatus constructed by a constitution of including a magnetic member in which a magnetic ceramic powder is used as a major component thereof and which is provided with flexibility; an antenna formed at a surface or inside of the magnetic member, and a matching circuit of the antenna formed at the surface or the inside of the magnetic member.
    Type: Application
    Filed: March 4, 2011
    Publication date: June 23, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Hidetsugu FUJIMOTO, Kengo Shiba, Hiromi Sakita, Kouji Nishimura, Kouichi Watanabe, Yumie Watanabe, Hatsuhiro Yano, Yoshihiko Takayama, Yoshitaka Mizoguchi
  • Patent number: 7924235
    Abstract: An antenna apparatus used in a wireless communication medium or a wireless communication medium processing apparatus constructed by a constitution of including a magnetic member in which a magnetic ceramic powder is used as a major component thereof and which is provided with flexibility, an antenna formed at a surface or inside of the magnetic member, and a matching circuit of the antenna formed at the surface or the inside of the magnetic member.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: April 12, 2011
    Assignee: Panasonic Corporation
    Inventors: Hidetsugu Fujimoto, Kongo Shiiba, Hiromi Sakita, Kouji Nishimura, Kouichi Watanabe, Yumie Watanabe, legal representative, Hatsuhiro Yano, Yoshihiko Takayama, Yoshitaka Mizoguchi