Patents by Inventor Masashi Yokoyama

Masashi Yokoyama 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: 11947136
    Abstract: The anti-Newton ring film of the present invention is manufactured by subjecting a liquid phase containing one or a plurality of polymers, one or a plurality of curable resin precursors, and a solvent to phase separation through spinodal decomposition in association with evaporation of the solvent to thereby form a phase-separated structure, and then curing the curable resin precursor to form an anti-Newton ring layer having an arithmetic mean roughness Ra of 30 nm or less. This film may have a parallel light transmittance of 90% or greater, a haze of 3% or less, and a transmission image clarity of 90% or higher as measured by an image clarity meter using an optical comb with a width of 0.5 mm. The anti-Newton ring layer may contain the polymer and the curable resin precursor at a ratio (weight ratio) of from 1/99 to 60/40. This film can effectively suppress the occurrence of a Newton's ring in a resistive touch screen, and can suppress glare even in a high-definition LCD and an organic EL display.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: April 2, 2024
    Assignee: DAICEL CORPORATION
    Inventor: Masashi Yokoyama
  • Patent number: 11921452
    Abstract: An image forming apparatus includes an image forming unit to form an image on a sheet based on a mode selected from a plurality of modes having different image forming speeds, a memory to store first data for a first mode included in the plurality of modes, the first data indicating a correspondence for the first mode between a type of the sheet and the image forming speed, and second data for a second mode included in the plurality of modes, the second data indicating a correspondence for the second mode between a type of the sheet and the image forming speed, and a display. A controller determines a first image forming speed for the first mode from the first data based on the type of the sheet, and determines a second image forming speed for the second mode from the second data.
    Type: Grant
    Filed: January 18, 2023
    Date of Patent: March 5, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kiyoharu Kakomura, Takuya Machida, Masashi Yokoyama, Itsuki Nishida
  • Publication number: 20230399479
    Abstract: Provided is a laminated film having a high level of surface hardness and excellent bendability, and also having antifouling performance that hardly deteriorates. A laminated film 1 of the present disclosure includes: a support 10; and a resin layer 11 laminated on at least one surface of the support, in which the resin layer satisfies the following Conditions 1, 2 and 3: Condition 1: in a pencil hardness test with a load of 750 g, a pencil hardness is F or greater on a surface of the resin layer of the laminated film; Condition 2: in a cylindrical mandrel test, where the surface of the resin layer of the laminated film is bent into a convex shape, no cracks occur on the surface of the resin layer with a curvature radius of 5 mm; and Condition 3: a surface of the resin layer of the laminated film has a water contact angle of 95° or greater before subjected to a steel wool abrasion test, and a water contact angle on tested areas of the surface is 90° or greater after subjected to the test.
    Type: Application
    Filed: November 12, 2021
    Publication date: December 14, 2023
    Applicant: DAICEL CORPORATION
    Inventor: Masashi YOKOYAMA
  • Publication number: 20230236534
    Abstract: An image forming apparatus includes an image forming unit configured to form an image on a sheet based on a mode selected from a plurality of modes having different image forming speeds; a memory configured to store first data for a first mode included in the plurality of modes, the first data indicating a correspondence for the first mode between a type of the sheet and the image forming speed, and second data for a second mode included in the plurality of modes, the second data indicating a correspondence for the second mode between a type of the sheet and the image forming speed; a display; and a controller configured to: determine a first image forming speed for the first mode from the first data based on the type of the sheet; and determine a second image forming speed for the second mode from the second data.
    Type: Application
    Filed: January 18, 2023
    Publication date: July 27, 2023
    Inventors: Kiyoharu Kakomura, Takuya Machida, Masashi Yokoyama, Itsuki Nishida
  • Patent number: 11385578
    Abstract: An image forming apparatus having a fixing unit, a belt, a conveyance unit, a heat sink, first and second rollers, a belt position detection unit, a steering unit, and a control unit further includes an image forming unit to form a toner image on a recording material, and perform a state transition to a power-off state and to a standby state where image forming by the image forming unit is possible. The belt position detection unit detects a position of the belt. The steering unit swings the first roller relative to the second roller based on a detection result by the belt position detection unit to widthwisely move the belt relative to the first roller. When the image forming apparatus enters the power-off state, the control unit controls the steering unit to make a rotational axis of the first roller approximately parallel to a rotational axis of the second roller.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: July 12, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masashi Yokoyama
  • Publication number: 20220035282
    Abstract: An image forming apparatus having a fixing unit, a belt, a conveyance unit, a heat sink, first and second rollers, a belt position detection unit, a steering unit, and a control unit further includes an image forming unit to form a toner image on a recording material, and perform a state transition to a power-off state and to a standby state where image forming by the image forming unit is possible. The belt position detection unit detects a position of the belt. The steering unit swings the first roller relative to the second roller based on a detection result by the belt position detection unit to widthwisely move the belt relative to the first roller. When the image forming apparatus enters the power-off state, the control unit controls the steering unit to make a rotational axis of the first roller approximately parallel to a rotational axis of the second roller.
    Type: Application
    Filed: July 21, 2021
    Publication date: February 3, 2022
    Inventor: Masashi Yokoyama
  • Publication number: 20210213309
    Abstract: There is provided a facepiece that does not hinder the movement of a wearer. A facepiece that covers a face of a wearer, the facepiece including: a front surface plate that is a transparent plate-like member having a size that can cover the face of the wearer; and a rotation mechanism passing through the front surface plate on either a right or left side of the wearer and being rotatable with respect to the front surface plate.
    Type: Application
    Filed: May 28, 2019
    Publication date: July 15, 2021
    Applicants: SHIGEMATSU WORKS CO., LTD., AIR WATER SAFETY SERVICE INC.
    Inventors: Nobuo SHIGEMATSU, Kenichi ONO, Hiroyuki IDE, Masaru FUKUDA, Shinji YAMAMOTO, Takushi DOI, Masashi YOKOYAMA
  • Publication number: 20210205641
    Abstract: There is provided a back carrier that does not hinder the movement of a wearer. A back carrier having a gas cylinder attached thereto, and carried on wearer's back, the back carrier including: a main body to which the gas cylinder is attached; and an adjuster including a regulator and a pressure demand valve attached to the main body and integrated with each other.
    Type: Application
    Filed: May 28, 2019
    Publication date: July 8, 2021
    Applicants: AIR WATER SAFETY SERVICE INC., SHIGEMATSU WORKS CO., LTD.
    Inventors: Shinji YAMAMOTO, Takushi DOI, Masashi YOKOYAMA, Nobuo SHIGEMATSU, Kenichi ONO, Hiroyuki IDE, Masaru FUKUDA
  • Publication number: 20210072426
    Abstract: An anti-reflection film (X) includes a laminated structure including a substrate (11), a hard coat layer (12), and an anti-reflection layer (13), and a luminous reflectance of the anti-reflection layer (13) side is 2% or less. A minimum value of a mandrel diameter indicating the bending resistance is in a range of 6 mm or less in a bending test according to a cylindrical mandrel method in which the test piece of the anti-reflection film (X) is bent with the anti-reflection layer (13) side inward. Additionally or alternatively, a minimum value of the mandrel diameter indicating the bending resistance is in a range of 10 mm or less in a bending test according to a cylindrical mandrel method in which the test piece of the anti-reflection film (X) is bent with the anti-reflection layer (13) side outward. Such an anti-reflection film is suitable for achieving high bending resistance together with high anti-reflective properties.
    Type: Application
    Filed: January 21, 2019
    Publication date: March 11, 2021
    Applicant: DAICEL CORPORATION
    Inventors: Takahiro SAKAKIBARA, Masashi YOKOYAMA
  • Patent number: 10890872
    Abstract: An image forming apparatus includes a mechanism configured to bring an intermediate transfer member into a first state contacting first and second drums and a second state separating from the first drum and contacting the second drum. The image forming apparatus is operable in a first mode of using the first and second drums in the first state, a second mode of using only the second drum in the second state, and a third mode of using only the second drum in the first state. If an image forming retry involving cleaning a transfer portion due to a recording medium conveyance delay in the third mode is to be performed, a controller changes over the third mode to the second mode without stopping rotation of the second drum to perform image formation on a recording medium fed by restart of a feeding operation.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: January 12, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryou Sakaguchi, Tadao Sugiura, Naoko Mima, Shun Motohashi, Masashi Yokoyama
  • Publication number: 20200355855
    Abstract: The anti-Newton ring film of the present invention is manufactured by subjecting a liquid phase containing one or a plurality of polymers, one or a plurality of curable resin precursors, and a solvent to phase separation through spinodal decomposition in association with evaporation of the solvent to thereby form a phase-separated structure, and then curing the curable resin precursor to form an anti-Newton ring layer having an arithmetic mean roughness Ra of 30 nm or less. This film may have a parallel light transmittance of 90% or greater, a haze of 3% or less, and a transmission image clarity of 90% or higher as measured by an image clarity meter using an optical comb with a width of 0.5 mm. The anti-Newton ring layer may contain the polymer and the curable resin precursor at a ratio (weight ratio) of from 1/99 to 60/40. This film can effectively suppress the occurrence of a Newton's ring in a resistive touch screen, and can suppress glare even in a high-definition LCD and an organic EL display.
    Type: Application
    Filed: February 15, 2019
    Publication date: November 12, 2020
    Applicant: DAICEL CORPORATION
    Inventor: Masashi YOKOYAMA
  • Patent number: 10474084
    Abstract: An image forming apparatus is configured to determine that a toner container was replaced during power off in a case where identification information acquired from a toner container and identification information stored in a nonvolatile memory do not match each other when power is turned on. In a case where the replaced toner container does not satisfy a replacement condition and does not contain a black toner, the image forming apparatus permits the execution of printing in a monochrome print mode, and suspends the execution of printing in the color print mode.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: November 12, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Masashi Yokoyama
  • Patent number: 10341502
    Abstract: An image forming apparatus includes an obtaining unit configured to obtain information related to a resolution of an image to be formed, an image processing unit configured to execute image processing corresponding to the information on image data, an image forming unit configured to form an image based on the image data on which the image processing is executed by the image processing unit, an intermediate transfer member to which a measuring image formed by the image forming unit is transferred, a measurement unit configured to measure the measuring image transferred to the intermediate transfer member, a storage unit configured to store measuring image data, and a controller configured to control the image processing unit to execute first image processing on the measuring image data, control the image forming unit to form the measuring image, control the measurement unit to measure the measuring image, and control an image forming condition.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: July 2, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoko Mima, Ryou Sakaguchi, Tadao Sugiura, Masashi Yokoyama, Shun Motohashi
  • Publication number: 20190187604
    Abstract: Provided is an image forming apparatus, which is configured to determine that a toner container was replaced during power off in a case where identification information acquired from a toner container and identification information stored in a nonvolatile memory do not match each other when power is turned on. In a case where the replaced toner container does not satisfy a replacement condition and does not contain a black toner, the image forming apparatus permits the execution of printing in a monochrome print mode, and suspends the execution of printing in the color print mode.
    Type: Application
    Filed: December 11, 2018
    Publication date: June 20, 2019
    Inventor: Masashi Yokoyama
  • Publication number: 20190113878
    Abstract: An image forming apparatus including a mechanism configured to bring an intermediate transfer member into a first state contacting first and second drums and a second state separating from the first drum and contacting the second drum, wherein image forming apparatus is operable in: a first mode of using the first and second drums in the first state; a second mode of using only the second drum in the second state; and a third mode of using only the second drum in the first state, and wherein if an image forming retry involving a cleaning a transfer portion due to a recording medium conveyance delay in the third mode is to be performed, a controller changes over the third mode to the second mode without stopping rotation of the second drum to perform image formation on a recording medium fed by restart of feeding operation.
    Type: Application
    Filed: October 4, 2018
    Publication date: April 18, 2019
    Inventors: Ryou Sakaguchi, Tadao Sugiura, Naoko Mima, Shun Motohashi, Masashi Yokoyama
  • Publication number: 20180103157
    Abstract: An image forming apparatus includes an obtaining unit configured to obtain information related to a resolution of an image to be formed, an image processing unit configured to execute image processing corresponding to the information on image data, an image forming unit configured to form an image based on the image data on which the image processing is executed by the image processing unit, an intermediate transfer member to which a measuring image formed by the image forming unit is transferred, a measurement unit configured to measure the measuring image transferred to the intermediate transfer member, a storage unit configured to store measuring image data, and a controller configured to control the image processing unit to execute first image processing on the measuring image data, control the image forming unit to form the measuring image, control the measurement unit to measure the measuring image, and control an image forming condition.
    Type: Application
    Filed: October 9, 2017
    Publication date: April 12, 2018
    Inventors: Naoko Mima, Ryou Sakaguchi, Tadao Sugiura, Masashi Yokoyama, Shun Motohashi
  • Patent number: 9891352
    Abstract: An anti-glare film comprises an anti-glare layer having a ridge on a surface thereof. The ridge is formed by phase separation of a plurality of resin components, and the ridge has a branched structure and a total length of not less than 100 ?m, and one or more of the ridges per square millimeter exist on the surface of the anti-glare layer.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: February 13, 2018
    Assignee: DAICEL CORPORATION
    Inventors: Masaki Hayashi, Masashi Yokoyama, Hiroshi Takahashi
  • Patent number: 9694427
    Abstract: In a lathe equipped with a spindle for rotatably driving a work and a tool rest having a turret (rotary member) rotatably supporting a plurality of tools in an indexable manner about a horizontal axis, the tool rest is detachably installed on a tool rest installation portion formed so as to be positioned on an operator side so that the tools of the turret face the work side gripped by the spindle in an attachable and detachable manner.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: July 4, 2017
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Takayuki Akai, Yoshihiro Matsumoto, Masashi Yokoyama, Toshiaki Tanaka
  • Patent number: 9381609
    Abstract: A chip discharging device of a machine tool is equipped with a chip discharging member for discharging chips generated by machine processing to a workpiece to an outside of the machine tool, and a chip shooter for introducing the chips to the chip discharging member. The chip shooter connects an introducing opening for introducing the generated chips and a discharging opening for discharging the chips toward the chip discharging member by a guide wall surface. The guide wall surface includes a vertical wall surface and a plurality of inclined wall surfaces inclined with respect to the vertical wall surface. At least a boundary parts between the inclined wall surfaces and a boundary part between the inclined wall surface and the vertical wall surface are formed by a flat surface or a curved surface.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: July 5, 2016
    Assignee: DMG MORI SEIKI CO., LTD.
    Inventors: Takayuki Akai, Yoshihiro Matsumoto, Masashi Yokoyama, Toshiaki Tanaka
  • Publication number: 20150306673
    Abstract: In a lathe equipped with a spindle for rotatably driving a work and a tool rest having a turret (rotary member) rotatably supporting a plurality of tools in an indexable manner about a horizontal axis, the tool rest is detachably installed on a tool rest installation portion formed so as to be positioned on an operator side so that the tools of the turret face the work side gripped by the spindle in an attachable and detachable manner.
    Type: Application
    Filed: April 23, 2015
    Publication date: October 29, 2015
    Applicant: DMG MORI SEIKI CO., LTD.
    Inventors: Takayuki AKAI, Yoshihiro MATSUMOTO, Masashi YOKOYAMA, Toshiaki TANAKA