Patents by Inventor Mitsuru Hashimoto

Mitsuru Hashimoto 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: 12044654
    Abstract: A measurement method is provided for non-destructive inspection of a magnetic material as an inspection target in a non-magnetic body. The method includes application of a magnetic field from a magnetic field applying unit to the inspection target through a surface of the non-magnetic body, and measurement of a magnetic field from the inspection target with a magnetic sensor on the surface of the non-magnetic body adjacent to the magnetic field applying unit at positions having different distances from the magnetic field applying unit in a first direction away from the magnetic field applying unit. The magnetic field from the inspection target is attenuated with the distances. In the method, first and second measurements are performed with the magnetic field applying unit respectively arranged on one side and on the other side in the first direction relative to the positions where the magnetic sensor performs measurement.
    Type: Grant
    Filed: August 26, 2022
    Date of Patent: July 23, 2024
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hiroshi Morita, Katsunori Teshima, Mitsuru Mimori, Yoshiyuki Hashimoto, Motonori Takakura
  • Patent number: 11049629
    Abstract: A non-halogen flame-retardant insulated electric wire includes a conductor and a crosslinked single-layer or a multilayer insulating layer on an outer periphery of the conductor. The insulating layer has a tensile elastic modulus of 500 MPa or more and an elongation at break of 120% or less in a tensile test performed at a displacement rate of 200 mm/min, and has a storage elastic modulus at 125° C. of 3×106 Pa or more in a dynamic viscoelasticity test.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: June 29, 2021
    Assignee: HITACHI METALS, LTD.
    Inventors: Makoto Iwasaki, Ryutaro Kikuchi, Mitsuru Hashimoto, Takuya Oriuchi
  • Patent number: 10975468
    Abstract: There is provided a cleaning method for removing a first deposit, formed on an upper electrode through an etching of a metal layer containing a metal, by using a plasma generated between a lower electrode of a lower structure and the upper electrode in a processing chamber of a plasma processing apparatus. The method includes a step of colliding ions with the first deposit formed on the upper electrode and a step of removing a second deposit, which is generated by said colliding and formed on the lower structure. Further, a cycle including the step of colliding and the step of removing is repeated multiple times.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: April 13, 2021
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Hiroki Kishi, Mitsuru Hashimoto, Keiichi Shimoda, Eiichi Nishimura, Akitaka Shimizu
  • Patent number: 10726969
    Abstract: A multilayer insulated wire includes a conductor, an inner insulation layer, and an outer insulation layer. A gel fraction of the inner insulation layer defined below is not less than 80%. A gel fraction of the outer insulation layer defined below is less than the gel fraction of the inner insulation layer and not less than 75%. An insulation covering layer including the inner and outer insulation layers is cross-linked and has a tensile modulus of not less than 500 MPa in a tensile test conducted at a tensile rate of 200 mm/min. Gel fraction (%)=(mass of inner or outer insulation layer after being immersed in xylene at 110° C. for 24 hours, then left at 20° C. and atmospheric pressure for 3 hours and vacuum-dried at 80° C.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: July 28, 2020
    Assignee: HITACHI METALS, LTD.
    Inventors: Makoto Iwasaki, Ryutaro Kikuchi, Tamotsu Kibe, Mitsuru Hashimoto
  • Patent number: 10497489
    Abstract: A cable includes a conductor, an insulation coating layer on the conductor, and an outer coating layer on the insulation coating layer. The insulation coating layer is made of a composition containing 100 parts by mass of a base polymer (A) and 100 to 250 parts by mass of a non-halogen flame retardant. The polymer (A) contains 70% to 99% by mass of an ethylene-vinyl acetate copolymer (a1) containing an ethylene-vinyl acetate copolymer having a melting point of 70° C. or higher, and 1% to 30% by mass of an acid-modified polyolefin resin (a2) having a glass transition point of ?55° C. or lower. The polymer (A) contains 25% to 50% by mass of a vinyl acetate component derived from the copolymer (a1). The outer coating layer is made of a composition containing 100 parts by mass of a base polymer (B) and 150 to 220 parts by mass of a non-halogen flame retardant.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: December 3, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Makoto Iwasaki, Motoharu Kajiyama, Yoshiaki Nakamura, Hiroshi Okikawa, Mitsuru Hashimoto, Kenichiro Fujimoto, Akinari Nakayama
  • Publication number: 20190096544
    Abstract: A non-halogen flame-retardant insulated electric wire includes a conductor and a crosslinked single-layer or a multilayer insulating layer on an outer periphery of the conductor. The insulating layer has a tensile elastic modulus of 500 MPa or more and an elongation at break of 120% or less in a tensile test performed at a displacement rate of 200 mm/min, and has a storage elastic modulus at 125° C. of 3×106 Pa or more in a dynamic viscoelasticity test.
    Type: Application
    Filed: November 21, 2018
    Publication date: March 28, 2019
    Inventors: Makoto IWASAKI, Ryutaro Kikuchi, Mitsuru Hashimoto, Takuya Oriuchi
  • Patent number: 10186349
    Abstract: A non-halogen flame-retardant insulated electric wire and a non-halogen flame-retardant cable that have excellent abrasion resistance, terminal processability, and handling ease in a high-temperature environment are provided. A non-halogen flame-retardant insulated electric wire includes a conductor and a crosslinked single-layer or multilayer insulating layer on an outer periphery of the conductor. The insulating layer has a tensile elastic modulus of 500 MPa or more and an elongation at break of 120% or less in a tensile test performed at a displacement rate of 200 mm/min, and has a storage elastic modulus at 125° C. of 3×106 Pa or more in a dynamic viscoelasticity test.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: January 22, 2019
    Assignee: HITACHI METALS, LTD.
    Inventors: Makoto Iwasaki, Ryutaro Kikuchi, Mitsuru Hashimoto, Takuya Oriuchi
  • Publication number: 20180327901
    Abstract: There is provided a cleaning method for removing a first deposit, formed on an upper electrode through an etching of a metal layer containing a metal, by using a plasma generated between a lower electrode of a lower structure and the upper electrode in a processing chamber of a plasma processing apparatus. The method includes a step of colliding ions with the first deposit formed on the upper electrode and a step of removing a second deposit, which is generated by said colliding and formed on the lower structure. Further, a cycle including the step of colliding and the step of removing is repeated multiple times.
    Type: Application
    Filed: July 24, 2018
    Publication date: November 15, 2018
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Hiroki KISHI, Mitsuru HASHIMOTO, Keiichi SHIMODA, Eiichi NISHIMURA, Akitaka SHIMIZU
  • Patent number: 10053773
    Abstract: There is provided a cleaning method for removing a first deposit, formed on an upper electrode through an etching of a metal layer containing a metal, by using a plasma generated between a lower electrode of a lower structure and the upper electrode in a processing chamber of a plasma processing apparatus. The method includes a step of colliding ions with the first deposit formed on the upper electrode and a step of removing a second deposit, which is generated by said colliding and formed on the lower structure. Further, a cycle including the step of colliding and the step of removing is repeated multiple times.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: August 21, 2018
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Hiroki Kishi, Mitsuru Hashimoto, Keiichi Shimoda, Eiichi Nishimura, Akitaka Shimizu
  • Patent number: 9984793
    Abstract: A non-halogen insulating wire with excellent flame resistance as well as high mechanical characteristics (wear resistance) and electrical insulation characteristics is provided. A non-halogen two-layer insulating wire includes: a conductor; and an insulating layer having an insulating inner layer which covers an outer circumference of the conductor and an insulating outer layer which covers an outer circumference of the insulating inner layer. The insulating inner layer is made of a first non-halogen resin composition which contains metal hydroxide and a base polymer (A) including polyolefin, and has a thickness of 20% to 58% of an entire thickness of the insulating layer. The insulating outer layer is made of a second non-halogen resin composition which contains metal hydroxide and a base polymer (B) including polyester resin and/or polyester elastomer resin.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: May 29, 2018
    Assignee: Hitachi Metals, Ltd.
    Inventors: Makoto Iwasaki, Kohei Arita, Hiroshi Okikawa, Mitsuru Hashimoto
  • Patent number: 9953746
    Abstract: An insulated wire includes a conductor, and an insulation layer provided around the conductor. The insulation layer includes an inner layer located on a conductor side and an outer layer provided around the inner layer. The inner layer includes a halogen-free resin composition including a base polymer (A). The outer layer includes a cross-linked body obtained by cross-linking a halogen-free flame-retardant resin composition including a base polymer (B) and a halogen-free flame retardant. The base polymer (A) includes a thermoplastic resin (a1) having an aromatic ring in a backbone chain. The base polymer (B) includes a polyolefin component. A thickness of the inner layer is not less than 0.03 mm and not more than 70% of a thickness of the insulation layer.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: April 24, 2018
    Assignee: HITACHI METALS, LTD.
    Inventors: Makoto Iwasaki, Tamotsu Kibe, Mitsuru Hashimoto, Mamoru Ohashi
  • Publication number: 20180075944
    Abstract: An insulated wire includes a conductor, and an insulation layer provided around the conductor. The insulation layer includes an inner layer located on a conductor side and an outer layer provided around the inner layer. The inner layer includes a halogen-free resin composition including a base polymer (A). The outer layer includes a cross-linked body obtained by cross-linking a halogen-free flame-retardant resin composition including a base polymer (B) and a halogen-free flame retardant. The base polymer (A) includes a thermoplastic resin (a1) having an aromatic ring in a backbone chain. The base polymer (B) includes a polyolefin component. A thickness of the inner layer is not less than 0.03 mm and not more than 70% of a thickness of the insulation layer.
    Type: Application
    Filed: August 15, 2017
    Publication date: March 15, 2018
    Inventors: Makoto IWASAKI, Tamotsu KIBE, Mitsuru HASHIMOTO, Mamoru OHASHI
  • Patent number: 9647206
    Abstract: Provided is a method for etching an etching target layer of a workpiece. The workpiece has a mask on the etching target layer. The etching target layer and the mask are formed from respective materials for which etching efficiency by a plasma of a rare gas having an atomic number greater than an atomic number of argon is higher than etching efficiency for the materials by a plasma of argon gas. The mask is formed from a material having a melting point higher than that of the etching target layer. The method includes (a) exposing the workpiece to a plasma of a first process gas containing a first rare gas having an atomic number greater than the atomic number of argon, and (b) exposing the workpiece to a plasma of a second process gas containing a second rare gas having an atomic number less than the atomic number of argon.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: May 9, 2017
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Mitsuru Hashimoto, Takashi Sone, Eiichi Nishimura, Keiichi Shimoda
  • Patent number: 9624366
    Abstract: A crosslinkable halogen-free resin composition includes a polymer blend, and a metal hydroxide mixed in an amount of 120 to 200 parts by mass per 100 parts by mass of the polymer blend. The polymer blend includes a high-density polyethylene, 30 to 50 parts by mass of an ethylene-acrylic ester-maleic anhydride terpolymer, 5 to 20 parts by mass of a maleic anhydride modified ethylene-?-olefin copolymer and 10 to 30 parts by mass of an ethylene-vinyl acetate copolymer.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: April 18, 2017
    Assignee: HITACHI METALS, LTD.
    Inventors: Makoto Iwasaki, Ryutaro Kikuchi, Mitsuru Hashimoto
  • Patent number: 9624365
    Abstract: A halogen-free crosslinkable resin composition includes a base polymer including a high density polyethylene, 30 to 50 parts by mass of an ethylene-acrylic ester-maleic anhydride terpolymer, 5 to 20 parts by mass of an ethylene-?-olefin copolymer modified with maleic anhydride, and 10 to 30 parts by mass of an ethylene-acrylic ester copolymer, and a metal hydroxide of which content is 120 to 200 parts by mass based on 100 parts by mass of the base polymer.
    Type: Grant
    Filed: June 8, 2015
    Date of Patent: April 18, 2017
    Assignee: HITACHI METALS, LTD.
    Inventors: Makoto Iwasaki, Ryutaro Kikuchi, Mitsuru Hashimoto
  • Patent number: 9627099
    Abstract: A crosslinkable halogen-free resin composition includes a polymer blend, and a metal hydroxide mixed in an amount of 120 to 200 parts by mass per 100 parts by mass of the polymer blend. The polymer blend includes a maleic anhydride-modified high-density polyethylene, 30 to 50 parts by mass of an ethylene-acrylic ester-maleic anhydride terpolymer, 5 to 20 parts by mass of a maleic anhydride modified ethylene-?-olefin copolymer and 10 to 30 parts by mass of an ethylene-acrylic ester copolymer.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: April 18, 2017
    Assignee: HITACHI METALS, LTD.
    Inventors: Makoto Iwasaki, Ryutaro Kikuchi, Mitsuru Hashimoto
  • Publication number: 20170098492
    Abstract: A non-halogen insulating wire with excellent flame resistance as well as high mechanical characteristics (wear resistance) and electrical insulation characteristics is provided. A non-halogen two-layer insulating wire includes: a conductor; and an insulating layer having an insulating inner layer which covers an outer circumference of the conductor and an insulating outer layer which covers an outer circumference of the insulating inner layer The insulating inner layer is made of a first non-halogen resin composition which contains metal hydroxide and a base polymer (A) including polyolefin, and has a thickness of 20% to 58% of an entire thickness of the insulating layer. The insulating outer layer is made of a second non-halogen resin composition which contains metal hydroxide and a base polymer (B) including polyester resin and/or polyester elastomer resin.
    Type: Application
    Filed: September 30, 2016
    Publication date: April 6, 2017
    Inventors: Makoto IWASAKI, Kohei ARITA, Hiroshi OKIKAWA, Mitsuru HASHIMOTO
  • Publication number: 20170062092
    Abstract: An insulated electric wire of the present disclosure includes a conductor and an insulation layer provided on an outer circumference of the conductor. The insulation layer includes a base polymer comprising ethylene-vinyl acetate copolymer and a metal hydroxide. The base polymer has a vinyl acetate content of 25% by mass or more and less than 50% by mass, and the metal hydroxide includes magnesium hydroxide.
    Type: Application
    Filed: September 1, 2016
    Publication date: March 2, 2017
    Inventors: Makoto Iwasaki, Mitsuru Hashimoto, Kenichiro Fujimoto
  • Publication number: 20170032867
    Abstract: A multilayer insulated wire includes a conductor, an inner insulation layer, and an outer insulation layer. A gel fraction of the inner insulation layer defined below is not less than 80%. A gel fraction of the outer insulation layer defined below is less than the gel fraction of the inner insulation layer and not less than 75%. An insulation covering layer including the inner and outer insulation layers is cross-linked and has a tensile modulus of not less than 500 MPa in a tensile test conducted at a tensile rate of 200 mm/min. Gel fraction (%)=(mass of inner or outer insulation layer after being immersed in xylene at 110° C. for 24 hours, then left at 20° C. and atmospheric pressure for 3 hours and vacuum-dried at 80° C.
    Type: Application
    Filed: July 25, 2016
    Publication date: February 2, 2017
    Inventors: Makoto IWASAKI, Ryutaro KIKUCHI, Tamotsu KIBE, Mitsuru HASHIMOTO
  • Patent number: 9530536
    Abstract: A non-halogen multilayer insulated wire includes a conductor, an inner layer covering the conductor, and an outer layer formed on the external surface of the inner layer. The inner layer includes a polyolefin resin composition including 60 to 95 parts by mass of a high density polyethylene, 5 to 40 parts by mass of an ethylene copolymer, and 0.1 to 1 part by mass of a metal damage inhibitor. The outer layer includes a polyester resin composition that includes a base polymer mainly including a polyester resin, and further includes, relative to 100 parts by mass of the base polymer, 50 to 150 parts by mass of a polyester block copolymer, 0.5 to 5 parts by mass of a hydrolysis inhibitor, 0.5 to 5 parts by mass of an inorganic porous filler, and 10 to 30 parts by mass of magnesium hydroxide.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: December 27, 2016
    Assignee: HITACHI METALS, LTD.
    Inventors: Kenichiro Fujimoto, Mitsuru Hashimoto, Hiroshi Nakashima