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).

  • 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
  • Publication number: 20150301237
    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 pl, and one or more of the ridges per square millimeter exist on the surface of the anti-glare layer.
    Type: Application
    Filed: April 17, 2014
    Publication date: October 22, 2015
    Applicant: Daicel Corporation
    Inventors: Masaki HAYASHI, Masashi YOKOYAMA, Hiroshi TAKAHASHI
  • Publication number: 20150273587
    Abstract: A machine tool includes a spindle equipped with a workpiece gripping portion arranged so as to face an operator side, the spindle being configured to rotatably drive a workpiece gripped by the workpiece gripping portion, and a tool mount equipped with a rotary member supporting a plurality of tools in a rotatably indexable manner about an axis parallel to an axis of the spindle. The tool mount is arranged at a tool mount installation portion formed to be positioned on the operator side in a manner such that the rotary member faces a workpiece gripping portion side.
    Type: Application
    Filed: March 30, 2015
    Publication date: October 1, 2015
    Applicant: DMG MORI SEIKI CO., LTD.
    Inventors: Takayuki AKAI, Yoshihiro MATSUMOTO, Masashi YOKOYAMA, Toshiaki TANAKA, Masao FUKUMORI
  • Publication number: 20150273642
    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: Application
    Filed: March 30, 2015
    Publication date: October 1, 2015
    Applicant: DMG MORI SEIKI CO., LTD.
    Inventors: Takayuki AKAI, Yoshihiro MATSUMOTO, Masashi YOKOYAMA, Toshiaki TANAKA
  • Patent number: 6500393
    Abstract: A cylindrical honeycomb structure formed by spirally winding a strip metal flat sheet and a strip metal corrugated sheet overlapped thereon. The metal flat sheet is welded, at each turn, to the metal corrugated sheet at a plurality of axially arranged welding positions on each portion where the metal flat sheet contacts the metal corrugated sheet. Letting L be the axial length of the honeycomb structure and D be the diameter of the honeycomb structure, the maximum value L1 of distances between adjacent welding positions satisfies at least one of relationships given by L1≦/D/2 and L1≦/L/2, or the distance L2 between the outermost welding positions in the axial direction of the honeycomb structure and the outer end face of the honeycomb structure satisfies at least one of relationship given by L2≦/D/20 and L2≦/L/10.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: December 31, 2002
    Assignees: Honda Giken Kogyo Kabushiki Kaisha, Yutaka Giken Co., Ltd.
    Inventors: Masaharu Nakamori, Katsunori Okubo, Tadahisa Masatani, Masashi Yokoyama, Hiroaki Miyata, Yukinori Kaneda, Toshiaki Okada, Mitsunori Takekawa, Shigeo Kimura, Manabu Shinchi
  • Publication number: 20020081245
    Abstract: A cylindrical honeycomb structure 23 is formed by spirally winding a strip metal flat sheet 21 and a strip metal corrugated sheet 22 overlapped thereon while welding, for each turn, the metal flat sheet 21 to the metal corrugated sheet 22 at a plurality of welding positions W1 to W6 axially arranged on each of mutual contact portions of the metal flat sheet 21 and the metal corrugated sheet 22. Letting L be the axial length of the honeycomb structure 23 and D be the diameter of the honeycomb structure 23, the maximum value L1 of distances each between adjacent ones of the plurality of welding positions W1 to W6 satisfies at least one of relationships given by L1≦D/2 and L1 ≦L/2, or the distance L2 between the outermost one W1 or W6 of the plurality of the welding positions W1 to W6 in the axial direction of the honeycomb structure 23 and the outer end surface of the honeycomb structure 23 satisfies at least one of relationships given by L2≦D/20 and L2≦L/10.
    Type: Application
    Filed: December 23, 1998
    Publication date: June 27, 2002
    Inventors: MASAHARU NAKAMORI, KATSUNORI OKUBO, TADAHISA MASATANI, MASASHI YOKOYAMA, HIROAKI MIYATA, YUKINORI KANEDA, TOSHIAKI OKADA, MITSUNORI TAKEKAWA, SHIGEO KIMURA, MANABU SHINCHI
  • Publication number: 20020037242
    Abstract: A metal carrier for a catalyst having a cylindrical case with an excellent high temperature oxidation resistance. A metal carrier for the catalyst includes a honeycomb structure which is in a cylindrical form and has plural air vents extending in an axial direction. The cylindrical case covers the periphery of the honeycomb structure. The cylindrical case is made of ferritic stainless steel containing Mo. The present invention makes it possible to avoid the occurrence of abnormal oxidation of the cylindrical case at high temperature.
    Type: Application
    Filed: December 22, 1998
    Publication date: March 28, 2002
    Inventors: MASAHARU NAKAMORI, KATSUNORI OKUBO, MASASHI YOKOYAMA, HIROSHI KATO
  • Patent number: 5236300
    Abstract: In a stacking and forwarding apparatus, an array of work is continuously transported or rails by belts and a preceeding one of works is located and stopped in a receiving space defined by stoppers. The preceeding one of works is lifted by three guide rails which are located at left and right sides and front side of the work. Thus, a next work is received in the receiving space under the preceeding work and also lifted by the rollers. The pair of stacked works is pushed outside of the apparatus.
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: August 17, 1993
    Assignees: Sanjo Machine Works, Ltd., Japan Tobacco Inc.
    Inventors: Satoru Aida, Hideo Soyama, Mitsuaki Kawabata, Masashi Yokoyama
  • Patent number: 4964483
    Abstract: A motor scooter having a seat mount and a foot rest floor contains a fuel tank of limited height but expensive horizontal dimensions positioned beneath and in close proximity to the foot rest floor in order to advantageously lower the effective center of gravity of the vehicle and to enable the use of a fuel tank having increased capacity.
    Type: Grant
    Filed: September 22, 1988
    Date of Patent: October 23, 1990
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masashi Yokoyama, Naoki Hara