Patents by Inventor Ayaka SAKAI

Ayaka SAKAI 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: 11971673
    Abstract: An image forming apparatus includes a process unit, a heating unit, and a controller unit. The process unit is configured to transfer an image onto a sheet. The heating unit is configured to fix the image transferred at the process unit onto the sheet, and to transfer a transfer layer onto an image formed on a sheet overlaid on a multilayer film. The controller unit is capable of operating in a first printing mode in which processes of transferring an image at the process unit, fixing the image at the heating unit, and transferring the transfer layer at the heating unit are executed, and a second printing mode in which processes of transferring an image at the process unit and fixing the image at the heating unit are not executed, and a process of transferring the transfer layer at the heating unit is executed.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: April 30, 2024
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tomoya Ichikawa, Tomoya Yamamoto, Ryosuke Sakai, Kentaro Mori, Kyoko Sugiyama, Ayaka Ohira, Isami Fujisawa
  • Publication number: 20230347275
    Abstract: A honeycomb filter comprising a pillar-shaped honeycomb structure body having a porous partition wall and a plugging portion, wherein, in a pore diameter distribution of the partition wall, in the case where the pore diameter (µm) whose cumulative pore volume is 10% of the total pore volume is denoted by D10, the pore diameter (µm) whose cumulative pore volume is 50% of the total pore volume is denoted by D50, and the pore diameter (µm) whose cumulative pore volume is 90% of the total pore volume is denoted by D90, all of the following equations (1) to (6) are satisfied. 8 .4 ? ? m<D10 ­­­(1) 17 .5 ? ? m<D50<24 .0 ? ? m ­­­(2) D90<55 .2 ? ? m ­­­(3) logD90-logD10 / logD50 <0 .60 ­­­(4) logD90 / logD50 <1 .30 ­­­(5) logD50 / logD10 <1 .
    Type: Application
    Filed: March 2, 2023
    Publication date: November 2, 2023
    Applicant: NGK Insulators, Ltd.
    Inventors: Fumihiko YOSHIOKA, Yuji SASAKI, Yasuyuki FURUTA, Ritsuko TERANISHI, Ayaka SAKAI, Tatsuya OHASHI
  • Publication number: 20230338885
    Abstract: A honeycomb filter comprising a pillar-shaped honeycomb structure body having a porous partition wall and a plugging portion, wherein, in a pore diameter distribution of the partition wall, in the case where the pore diameter (µm) whose cumulative pore volume is 10% of the total pore volume is denoted by D10, the pore diameter (µm) whose cumulative pore volume is 50% of the total pore volume is denoted by D50, and the pore diameter (µm) whose cumulative pore volume is 90% of the total pore volume is denoted by D90, all of the following equations (1) to (6) are satisfied. 3.9 ? ? m<D10 ­­­(1) 10.5 ? ? m<D50<16 .6 ? ? m ­­­(2) D90<38 .7 ? ? m ­­­(3) log ? D90-logD10 / log ? D50<0 .80 ­­­(4) log ? D90 / logD50<1 .36 ­­­(5) log ? D50 / logD10<1 .
    Type: Application
    Filed: March 2, 2023
    Publication date: October 26, 2023
    Applicant: NGK Insulators, Ltd.
    Inventors: Fumihiko YOSHIOKA, Yudai KURIMOTO, Yasuyuki FURUTA, Ritsuko TERANISHI, Ayaka SAKAI, Tatsuya OHASHI
  • Publication number: 20230311047
    Abstract: A honeycomb filter comprising a pillar-shaped honeycomb structure body having a porous partition wall disposed to surround a plurality of cells which serve as fluid through channels extending from a first end face to a second end face and a plugging portion provided at an open end on the first end face side or the second end face side of each of the cells, wherein the partition wall has an average number of branches of pores existing at the outermost surface of the partition wall of greater than 7.5 and less than 9.0.
    Type: Application
    Filed: March 2, 2023
    Publication date: October 5, 2023
    Applicant: NGK Insulators, Ltd.
    Inventors: Yudai KURIMOTO, Yasuyuki FURUTA, Fumihiko YOSHIOKA, Tatsuya OHASHI, Ayaka SAKAI, Ritsuko TERANISHI
  • Publication number: 20230064038
    Abstract: A semiconductor device includes a substrate and an insulating film formed on the substrate, and an electrode layer comprising molybdenum, formed in contact with the insulating film. The electrode layer has a chlorine concentration gradient such that a first concentration of chlorine in a first portion of the electrode layer closer to the insulating layer is higher than a second concentration of chlorine in a second portion of the electrode layer less closer to the insulating layer.
    Type: Application
    Filed: March 4, 2022
    Publication date: March 2, 2023
    Applicant: Kioxia Corporation
    Inventors: Naomi Fukumaki, Ayaka Sakai, Takayuki Beppu
  • Patent number: 10540775
    Abstract: In a porous body, a surface layer thickness Ts takes a relatively small value satisfying P?0.54 Ts (formula (1)), the surface layer thickness Ts being derived by a microstructure analysis using the porous-body data that is prepared through three-dimensional scanning of a region including a surface (inflow plane 61) of the porous body. Here, P denotes a porosity [%] of the porous body, and 0%<P<100% and 0 ?m<Ts are assumed. The surface layer thickness Ts is derived as a distance in a thickness direction (X direction) between a surface-layer region start plane 92 in which a straight-pore opening ratio becomes 98% or less for the first time and a surface-layer region end plane 93 in which the straight-pore opening ratio becomes 1% or less for the first time.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: January 21, 2020
    Assignee: NGK Insulators, Ltd.
    Inventors: Ayaka Sakai, Satoshi Sakashita, Shingo Sokawa, Yuichi Tajima
  • Patent number: 9953419
    Abstract: A method for analyzing a microstructure of a porous body is, for example, a method using porous-body data in which positional information providing a position of a voxel of a porous body obtained by three-dimensional scanning is associated with voxel type information including information that allows determination as to whether the voxel is a spatial voxel representing a space or an object voxel representing an object. This method includes (a) a step of defining an imaginary surface that is in contact with at least one object voxel present on a surface of the porous body, and identifying, as opening-related voxels, spatial voxels that are in contact with the imaginary surface and spatial voxels that continuously lie in a linear direction from the imaginary surface; and (b) a step of analyzing a microstructure of the porous body on a basis of the opening-related voxels.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: April 24, 2018
    Assignee: NGK Insulators, Ltd.
    Inventors: Ayaka Sakai, Satoshi Sakashita, Hiroyuki Nagaoka
  • Publication number: 20170287155
    Abstract: In a porous body, a surface layer thickness Ts takes a relatively small value satisfying P?0.54 Ts (formula (1)), the surface layer thickness Ts being derived by a microstructure analysis using the porous-body data that is prepared through three-dimensional scanning of a region including a surface (inflow plane 61) of the porous body. Here, P denotes a porosity [%] of the porous body, and 0%<P<100% and 0 ?m<Ts are assumed. The surface layer thickness Ts is derived as a distance in a thickness direction (X direction) between a surface-layer region start plane 92 in which a straight-pore opening ratio becomes 98% or less for the first time and a surface-layer region end plane 93 in which the straight-pore opening ratio becomes 1% or less for the first time.
    Type: Application
    Filed: March 23, 2017
    Publication date: October 5, 2017
    Applicant: NGK INSULATORS, LTD.
    Inventors: Ayaka SAKAI, Satoshi SAKASHITA, Shingo SOKAWA, Yuichi TAJIMA
  • Publication number: 20160307318
    Abstract: A method for analyzing a microstructure of a porous body is, for example, a method using porous-body data in which positional information providing a position of a voxel of a porous body obtained by three-dimensional scanning is associated with voxel type information including information that allows determination as to whether the voxel is a spatial voxel representing a space or an object voxel representing an object. This method includes (a) a step of defining an imaginary surface that is in contact with at least one object voxel present on a surface of the porous body, and identifying, as opening-related voxels, spatial voxels that are in contact with the imaginary surface and spatial voxels that continuously lie in a linear direction from the imaginary surface; and (b) a step of analyzing a microstructure of the porous body on a basis of the opening-related voxels.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 20, 2016
    Inventors: Ayaka SAKAI, Satoshi SAKASHITA, Hiroyuki NAGAOKA
  • Patent number: 9349050
    Abstract: Plural of virtual curved surface solids, each of which is a curved surface solid formed by a combination of plural of virtual spheres, is placed so as to fill in space voxels, referring to porous-body data in which positional information is associated with voxel-type information (step S100). Information regarding a flow rate for each space voxel when a fluid passes through a porous body is derived by executing a fluid analysis based on the porous-body data (step S110). A flow-rate-weighted mean diameter Ru, which is a weighted average obtained by weighting an equivalent diameter R?i for each virtual curved surface solid with a volume Vi and an average flow rate Ui for each virtual curved surface solid, is derived based an information regarding the virtual curved surface solids and information regarding the flow rate for each space voxel (step S120).
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: May 24, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Satoshi Sakashita, Hiroyuki Nagaoka, Ayaka Sakai
  • Publication number: 20150278602
    Abstract: Plural of virtual curved surface solids, each of which is a curved surface solid formed by a combination of plural of virtual spheres, is placed so as to fill in space voxels, referring to porous-body data in which positional information is associated with voxel-type information (step S100). Information regarding a flow rate for each space voxel when a fluid passes through a porous body is derived by executing a fluid analysis based on the porous-body data (step S110). A flow-rate-weighted mean diameter Ru, which is a weighted average obtained by weighting an equivalent diameter R?i for each virtual curved surface solid with a volume Vi and an average flow rate Ui for each virtual curved surface solid, is derived based an information regarding the virtual curved surface solids and information regarding the flow rate for each space voxel (step S120).
    Type: Application
    Filed: March 20, 2015
    Publication date: October 1, 2015
    Inventors: Satoshi SAKASHITA, Hiroyuki NAGAOKA, Ayaka SAKAI