Patents by Inventor Naoki Akiyama

Naoki Akiyama 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: 20210287727
    Abstract: According to one embodiment, a magnetoresistive memory device includes: a first conductor; a layer stack; an insulator on a side surface of the layer stack; a second conductor on a second surface of the layer stack; a third conductor; and a fourth conductor on the third conductor. The layer stack includes a first ferromagnetic layer, a second ferromagnetic layer, and an insulating layer between the first ferromagnetic layer and the second ferromagnetic layer and has a first surface in contact with the first conductor. The second surface is at an opposite side of the first surface. The third conductor has a portion on the second conductor and a portion on a side surface of the insulator.
    Type: Application
    Filed: September 9, 2020
    Publication date: September 16, 2021
    Applicant: Kioxia Corporation
    Inventors: Shuichi TSUBATA, Naoki AKIYAMA
  • Publication number: 20210156891
    Abstract: A stage on which an inspection object having an electronic device against which a contact terminal of a probe card of an inspection apparatus is pressed by a load applied thereto is placed, includes a first cooling plate including a first coolant flow path formed therein, a heating source mounted on the first cooling plate and including a plurality of light emitting elements so as to heat the inspection object, a transparent member provided on the heating source and transmitting light output from the heating source, a second cooling plate provided on the transparent member so as to hold the inspection object and including a second coolant flow path formed therein, and a transparent resin layer filled between the first cooling plate and the transparent member so as to cover the heating source.
    Type: Application
    Filed: November 23, 2020
    Publication date: May 27, 2021
    Inventors: Dai KOBAYASHI, Hiroyuki NAKAYAMA, Naoki AKIYAMA
  • Patent number: 10890869
    Abstract: An electrophotographic fixing member having an elastic layer that is high in thermal conductivity in the thickness direction, resists causing fracture or plastic deformation even by repeated compression in a high temperature state, and is low in hardness. The electrophotographic fixing member has a substrate, and an elastic layer provided on the substrate, wherein the elastic layer contains a filler containing an inorganic oxide and is provided on an outer circumference of the substrate, wherein (1) in a binarized image on a first cross-section in a thickness-circumferential direction of the elastic layer and a binarized image on a second cross-section in a thickness-axial direction of the elastic layer, 1.0?(A/B)?2.0 and 0.40?(A+B)?0.50 are satisfied; and (2) 50°??Ave?90° is satisfied.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: January 12, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yasuhiro Miyahara, Naoki Akiyama, Hiroto Sugimoto, Hiroki Muramatsu, Akeshi Asaka, Noriaki Kobayashi, Matsutaka Maeda, Yuji Kitano
  • Patent number: 10859955
    Abstract: An image heating member for heating an image formed on a recording material includes a base material, an elastic layer which contains a thermally conductive filler of 5 ?m or more in average diameter and which is provided on the base material, and a parting layer which is provided on the elastic layer so as to contact the elastic layer and which is formed of a fluorine-containing resin tube provided on the elastic layer. The fluorine-containing resin tube has 3% or more in heat contraction rate with respect to a widthwise direction of the image heating member before and after the fluorine-containing resin tube is heated and left standing in an oven at 200° C. for 30 minutes.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: December 8, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Akeshi Asaka, Naoki Akiyama, Hiroto Sugimoto, Hiroki Muramatsu, Yasuhiro Miyahara, Noriaki Kobayashi
  • Publication number: 20200371460
    Abstract: An electrophotographic fixing member having an elastic layer that is high in thermal conductivity in the thickness direction, resists causing fracture or plastic deformation even by repeated compression in a high temperature state, and is low in hardness. The electrophotographic fixing member has a substrate, and an elastic layer provided on the substrate, wherein the elastic layer contains a filler containing an inorganic oxide and is provided on an outer circumference of the substrate, wherein (1) in a binarized image on a first cross-section in a thickness-circumferential direction of the elastic layer and a binarized image on a second cross-section in a thickness-axial direction of the elastic layer, 1.0?(A/B)?2.0 and 0.40?(A+B)?0.50 are satisfied; and (2) 50°??Ave?90° is satisfied.
    Type: Application
    Filed: May 20, 2020
    Publication date: November 26, 2020
    Inventors: Yasuhiro Miyahara, Naoki Akiyama, Hiroto Sugimoto, Hiroki Muramatsu, Akeshi Asaka, Noriaki Kobayashi, Matsutaka Maeda, Yuji Kitano
  • Patent number: 10756944
    Abstract: An information processing apparatus includes a memory and a processor coupled to the memory and configured to, receive a plurality of pieces of collation information corresponding to respective information items of configuration information representing information apparatus configurations, perform collation processing for collating information acquired from an information system including a plurality of information apparatuses with the plurality of pieces of collation information, and specify pieces of configuration information representing respective configurations of the plurality of information apparatuses based on specific collation information with which the largest number of successes of the collation processing for each type of information item and each model of information apparatus is detected.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: August 25, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Yusuke Tsugita, Masayoshi Utaka, Naoki Akiyama, Eiji Morito
  • Publication number: 20200209793
    Abstract: An image heating member for heating an image formed on a recording material includes a base material, an elastic layer which contains a thermally conductive filler of 5 ?m or more in average diameter and which is provided on the base material, and a parting layer which is provided on the elastic layer so as to contact the elastic layer and which is formed of a fluorine-containing resin tube provided on the elastic layer. The fluorine-containing resin tube has 3% or more in heat contraction rate with respect to a widthwise direction of the image heating member before and after the fluorine-containing resin tube is heated and left standing in an oven at 200° C. for 30 minutes.
    Type: Application
    Filed: December 16, 2019
    Publication date: July 2, 2020
    Inventors: Akeshi Asaka, Naoki Akiyama, Hiroto Sugimoto, Hiroki Muramatsu, Yasuhiro Miyahara, Noriaki Kobayashi
  • Publication number: 20200019100
    Abstract: A fixing apparatus includes an endless belt, and a pressing member including a base body and an elastic layer formed on the base body. A plurality of pore portions connected to each other are provided in the elastic layer. In a case where a binary image is generated from a three-dimensional image of the elastic layer, a threshold value X ?m corresponding to opening processing with which a number of pores derived from the pore portions takes a maximum value is obtained, and then pores derived from the pore portions in the elastic layer are extracted by performing opening processing with a threshold value of 2X ?m, an average value of angles ? is 120° or larger and smaller than 150°.
    Type: Application
    Filed: June 18, 2019
    Publication date: January 16, 2020
    Inventors: Akeshi Asaka, Naoki Akiyama, Hiroto Sugimoto, Hiroki Muramatsu, Yasuhiro Miyahara, Noriaki Kobayashi
  • Patent number: 10303672
    Abstract: A system includes circuitry configured to: read a plurality of character information and a plurality of identifiers that are included in a text file; determine whether a character information among the plurality of character information is included between the at least one pair of identifiers among the plurality of identifiers in the text file; and associate the character information with the at least one pair of identifiers when it is determined that the character information is included between the at least one pair of identifiers.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: May 28, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Masahiro Kataoka, Takahiro Murata, Naoki Akiyama
  • Publication number: 20190099796
    Abstract: A manufacturing method of a stainless-steel-made base member includes a first step of forming, from a stainless-steel-made first cup-shaped member held at an inside portion thereof by a holding member, a second cup-shaped member made thinner than the first cup-shaped member by ironing an outside portion of the first cup-shaped member with a ring-shaped member movable in a longitudinal direction of the holding member; a second step of extracting the second cup-shaped member out of the holding member; and a third step of cutting a bottom end portion of the second cup-shaped member with respect to the longitudinal direction. The first cup-shaped member has Vickers hardness of not less than 200 HV0.3/10 or more and not more than 280 HV0.3/10, and the holding member has Vickers hardness which is not less than four times and not more than nine times the Vickers hardness of the first cup-shaped member.
    Type: Application
    Filed: September 21, 2018
    Publication date: April 4, 2019
    Inventors: Naoki Akiyama, Satoshi Ohtake
  • Patent number: 10115798
    Abstract: A semiconductor device is provided with: a semiconductor substrate; a first electrode disposed on a surface of the semiconductor device and configured to be soldered to a conductive member; and a second electrode disposed on the surface of the semiconductor device and configured to be wire-bonded to a conductive member. The first electrode includes first, second and third metal layers. The second metal layer is located between the first and third metal layers. A metallic material of the second metal layer is greater in tensile strength than a metallic material of each one of the first metal layer and the third metal layer. The second electrode includes a layer made of a same metallic material as one of the first metal layer and the third metal layer, and does not include any layers made of a same metallic material as the second metal layer.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: October 30, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki Akiyama, Hiroki Tsuma, Takashi Kuno, Toshitaka Kanemaru, Kenta Hashimoto
  • Publication number: 20180233571
    Abstract: A semiconductor device is provided with: a semiconductor substrate; a first electrode disposed on a surface of the semiconductor device and configured to be soldered to a conductive member; and a second electrode disposed on the surface of the semiconductor device and configured to be wire-bonded to a conductive member. The first electrode includes first, second and third metal layers. The second metal layer is located between the first and third metal layers. A metallic material of the second metal layer is greater in tensile strength than a metallic material of each one of the first metal layer and the third metal layer. The second electrode includes a layer made of a same metallic material as one of the first metal layer and the third metal layer, and does not include any layers made of a same metallic material as the second metal layer.
    Type: Application
    Filed: January 30, 2018
    Publication date: August 16, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki AKIYAMA, Hiroki TSUMA, Takashi KUNO, Toshitaka KANEMARU, Kenta HASHIMOTO
  • Publication number: 20180205594
    Abstract: An information processing apparatus includes a memory and a processor coupled to the memory and configured to, receive a plurality of pieces of collation information corresponding to respective information items of configuration information representing information apparatus configurations, perform collation processing for collating information acquired from an information system including a plurality of information apparatuses with the plurality of pieces of collation information, and specify pieces of configuration information representing respective configurations of the plurality of information apparatuses based on specific collation information with which the largest number of successes of the collation processing for each type of information item and each model of information apparatus is detected.
    Type: Application
    Filed: January 8, 2018
    Publication date: July 19, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Yusuke Tsugita, Masayoshi Utaka, Naoki Akiyama, Eiji Morito
  • Publication number: 20170116240
    Abstract: A system includes circuitry configured to: read a plurality of character information and a plurality of identifiers that are included in a text file; determine whether a character information among the plurality of character information is included between the at least one pair of identifiers among the plurality of identifiers in the text file; and associate the character information with the at least one pair of identifiers when it is determined that the character information is included between the at least one pair of identifiers.
    Type: Application
    Filed: January 9, 2017
    Publication date: April 27, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Masahiro KATAOKA, Takahiro MURATA, Naoki AKIYAMA
  • Patent number: 9606486
    Abstract: An elastic layer includes a needle-shaped filler and a void and has a porosity of 20 vol % or more and 60 vol % or less. The elastic layer contains a first area and a second area. The first area extends from a surface of the elastic layer opposite to a surface facing the mandrel toward the mandrel and has a thickness of 30% of the thickness of the elastic layer. The second area is a central area in a thickness direction of the elastic layer and has a thickness of 40% of the thickness of the elastic layer. The needle-shaped filler in the second area has an orientation degree of 50% or lower. The needle-shaped filler in the first area has an orientation degree higher than that of the needle-shaped filler in the second area.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: March 28, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Arai, Takeshi Suzuki, Jun Miura, Shigeaki Takada, Toshinori Nakayama, Naoki Akiyama, Daigo Matsuura, Yasuhiro Miyahara, Akeshi Asaka, Shuichi Tamura, Katsuhisa Matsunaka, Shinsuke Takahashi, Hiroto Sugimoto
  • Patent number: 9576008
    Abstract: A system includes circuitry configured to: read a plurality of character information and a plurality of identifiers that are included in a text file; determine whether a character information among the plurality of character information is included between the at least one pair of identifiers among the plurality of identifiers in the text file; and associate the character information with the at least one pair of identifiers when it is determined that the character information is included between the at least one pair of identifiers.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: February 21, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Masahiro Kataoka, Takahiro Murata, Naoki Akiyama
  • Patent number: 9535381
    Abstract: An electrophotographic member includes a rubber layer having a lightness of 15 or less and including a marked portion formed so as to have a depth of 35 ?m or more and 100 ?m or less, a fluorine-based resin layer having a light transmittance of 60% or more, and an adhesive layer disposed between the rubber layer and the fluorine-based resin layer. The adhesive layer has a lightness of 60 or more and has a thickness of 3 ?m or more and 10 ?m or less in a portion surrounding the marked portion.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: January 3, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuhiro Miyahara, Naoki Akiyama, Akiyoshi Shinagawa
  • Patent number: 9519250
    Abstract: A heater includes a substrate, a first electrical contact, second electrical contacts, first electrode portions and second electrode portions, heat generating portions, a first electroconductive line portion, and a second electroconductive line portion. The heat generating portions are disposed so as to be offset from a center line of the substrate with respect to a widthwise direction of the substrate.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: December 13, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akeshi Asaka, Toshinori Nakayama, Shigeaki Takada, Masayuki Tamaki, Naoki Akiyama, Koichi Kakubari
  • Patent number: 9513592
    Abstract: A heater includes a substrate, a first electrical contact, a plurality of second electrical contacts, a plurality of electrode portions including first electrode portions electrically connected with the first electrical contact and second electrode portions electrically connected with the second electrical contacts, the first electrode portions and the second electrode portions being arranged alternately with predetermined gaps in a longitudinal direction of the substrate, and a plurality of heat generating portions provided between adjacent ones of the electrode portions so as to electrically connect between adjacent electrode portion. The heat generating portions are capable of generating heat by the electric power supply between adjacent electrode portions. A part of the second electrical contacts is selectably electrically connectable with the second terminal. The electrode portions are covered with the heat generating portions so as to be positioned between the substrate and the heat generating portions.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: December 6, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Akiyama, Toshinori Nakayama, Masayuki Tamaki, Shigeaki Takada, Akeshi Asaka, Koichi Kakubari
  • Patent number: 9504096
    Abstract: A heater includes: a substrate; a first electrical contact; second electrical contacts; first and second electrodes; heat generating portions; a first electroconductive line portion electrically connecting the first electrical contact and the first electrode portions; and a second electroconductive line portion electrically connecting one of the second electrical contacts and a part of the second electrode portions. A cross-sectional area of a portion, of the first electroconductive line portion, into which all of currents flowing through the first electrode portions merge when the currents flow from the first electrode portions toward the first electrical contact is larger than a cross-sectional area of a portion, of the second electroconductive line portion, into which all of currents flowing through the part of the second electrode portions merge when the currents flow from the part of the second electrode portions toward the one of second electrical contacts.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: November 22, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Kakubari, Toshinori Nakayama, Shigeaki Takada, Masayuki Tamaki, Naoki Akiyama, Akeshi Asaka