Patents by Inventor Koji Yamaguchi

Koji Yamaguchi 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: 20150041228
    Abstract: An agricultural tractor seeks to simplify a shaft support structure in a lower portion side of an elevating hydraulic cylinder which is externally installed to a rear side of a transmission case. The agricultural tractor of the present invention is provided with a travel machine body to which an engine and the transmission case are mounted, a lift arm which is provided in a rear portion side of an upper surface of the transmission case so as to freely oscillate up and down, the elevating hydraulic cylinder which oscillates up and down the lift arm, and rear axle cases which protrude laterally outward from the transmission case. An upper portion side of the elevating hydraulic cylinder is connected to the lift arm, and a lower portion side of the elevating hydraulic cylinder is supported to the travel machine body.
    Type: Application
    Filed: August 29, 2012
    Publication date: February 12, 2015
    Inventors: Kenichi Hatanaka, Koji Yamaguchi
  • Publication number: 20140327290
    Abstract: A frame structure for a seat back to be provided in the seat back having a seatbelt retractor and a seatbelt guide at a frame top, wherein the frame structure includes an oblique frame and a vertical frame, the oblique frame obliquely extending upward to a seatbelt guide installation section from a first support point located at an end side of a lower part of the seat back in a seat width direction, the vertical frame extending upward from a second support point located at another end side of the lower part of the seat back in the seat width direction and connecting to the oblique frame at a top.
    Type: Application
    Filed: December 13, 2012
    Publication date: November 6, 2014
    Inventors: Satoshi Matsumoto, Yoshito Kuroda, Koji Yamaguchi
  • Patent number: 8877680
    Abstract: A reversible thermosensitive recording medium including a support, a reversible thermosensitive recording layer provided on the support and an antistatic layer, wherein the antistatic layer is provided on at least one of the reversible thermosensitive recording layer and a surface of the support opposite to the surface thereof on which the reversible thermosensitive recording layer is provided, wherein the antistatic layer contains spherical fillers and a curable conductive polymer, and wherein the spherical fillers satisfy the following Expression (1): 4?average particle diameter of the spherical fillers/thickness of the antistatic layer?6??Expression (1).
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Tadafumi Tatewaki, Koji Yamaguchi
  • Patent number: 8867955
    Abstract: A developer accommodating unit includes a flexible developer accommodating container sealed with a sealing member at its developer discharging opening; a rotatable unsealing member for removing the sealing member from the opening; a drive transmission member for transmitting a rotational force to the unsealing member, wherein the drive transmission member is mounted at one longitudinal end portion of the unsealing member and is rotatably assembled with a frame; and a supporting member for supporting the unsealing member when the unsealing member is assembled. The supporting member includes a preventing portion for preventing the unsealing member from dropping from the supporting member. In a state in which the drive transmission member is assembled with the frame, a gap between the unsealing member and the supporting member is larger than a gap between the drive transmission member and the frame. The unsealing member is spaced from the supporting member.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: October 21, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Yamaguchi, Hiroomi Matsuzaki, Masaakii Matsushita, Junichi Matsumura
  • Publication number: 20140300165
    Abstract: A frame structure to be provided in a seat back having a seatbelt retractor and a seatbelt guide at a top of a seat, wherein the frame structure is an integral structure including an oblique frame obliquely extending upwardly to a seatbelt guide installation section from a first support point located at an end side of a lower part of the seat back in a seat width direction, a vertical frame extending upwardly from a second support point located at another end side of the lower part of the seat back in the seat width direction and connects to the oblique frame at a top, and a transverse frame extending between a lower end of the oblique frame and a lower end of the vertical frame.
    Type: Application
    Filed: December 14, 2012
    Publication date: October 9, 2014
    Inventors: Satoshi Matsumoto, Yoshito Kuroda, Koji Yamaguchi
  • Publication number: 20140252837
    Abstract: A fiber-reinforced resin structure having a hole into which a connector that connects to another member is inserted, wherein a bearing strength at a part of an inside surface of the hole on which a load from the connector acts, represented by a stress at which displacement of the part of the inside surface of the hole starts increasing even without the load acting on the part of the inside surface of the hole from the connector increasing, is less than a breaking strength of a fiber-reinforced resin constituting that part of the structure.
    Type: Application
    Filed: December 14, 2012
    Publication date: September 11, 2014
    Applicant: Toray Industries, Inc.
    Inventors: Koji Yamaguchi, Nobuhiko Shimizu, Yukitane Kimoto
  • Publication number: 20140232034
    Abstract: The present invention relates to a method for molding a powder mold product according to which a powder mold product of uniform quality can be molded with excellent productivity. The present invention includes the steps of: preparing raw material powder 3 (a preparing step); interposing a mold assembly-use lubricant between an outer circumferential face 12s of a first punch (a lower punch 12) and an inner circumferential face 10s of a die 10, the lower punch 12 and the die 10 in this state being relatively shifted to apply the mold assembly-use lubricant to the inner circumferential face 10s of the die 10 (an applying step); and packing the raw material powder 3 into a cavity, a powder mold product 100 being molded by the raw material powder 3 being pressed (a molding step).
    Type: Application
    Filed: October 5, 2012
    Publication date: August 21, 2014
    Inventors: Kazushi Kusawake, Atsushi Sato, Masato Uozumi, Koji Yamaguchi
  • Publication number: 20140199094
    Abstract: A developer accommodating container includes: a flexible container provided with an opening for permitting discharge of a developer; a sealing member, mounted to the flexible container in a state in which the sealing member seals the opening, capable of exposing the opening by being wound up; an unsealing member for winding up the sealing member by being rotated to expose the opening; a frame for accommodating the unsealing member; and a limiting portion for limiting deformation of the unsealing member with respect to a direction of a force applied from the sealing member to the unsealing member when the unsealing member winds up the sealing member.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 17, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hiroomi Matsuzaki, Kojiro Yasui, Koji Yamaguchi, Masaaki Matsushita
  • Publication number: 20140199096
    Abstract: A developer accommodating unit for accommodating a developer includes: a flexible container provided with a plurality of openings for permitting discharge of developer. The openings are formed and arranged in a longitudinal direction of the developer accommodating unit. The openings have opening areas such that with respect to the longitudinal direction, the opening area of the opening provided at an end portion is larger than the opening area of the opening provided at a central portion.
    Type: Application
    Filed: January 8, 2014
    Publication date: July 17, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masatomi Yoshida, Kojiro Yasui, Masaaki Matsushita, Koji Yamaguchi
  • Publication number: 20140191839
    Abstract: A compact 10 is obtained by compression-molding coated soft magnetic particles covered with insulating coatings, and is a modified frustum body having, as a main body, a frustum portion 113 sandwiched between plate-shaped portions 111 and 112 arranged in opposing relation. A vertical cross-section of the compact 10 is made up of a trapezoidal surface 113s, a long-side rectangular surface 111s joining to a long side of the trapezoidal surface 113s, and a short-side rectangular surface 112s joining to a short side of the trapezoidal surface 113s.
    Type: Application
    Filed: November 28, 2011
    Publication date: July 10, 2014
    Applicants: SUMITOMO ELECTRIC SINTERED ALLOY, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Atsushi Sato, Masato Uozumi, Koji Yamaguchi, Kazushi Kusawake
  • Publication number: 20140159462
    Abstract: A frame structure for a backrest made of a resin and having a gate-shaped profile includes side frames extending parallel to each other on both sides thereof and a transverse frame extending like a sheet between top portions of the side frames integrally connected to the transverse frame, wherein the transverse frame connects to backrest back-side portions of the side frames at the top portions and connects to backrest front-side portions of the side frames at bottom portions, the transverse frame being formed into a sheet-like shape smoothly extending obliquely with respect to the side frames in a longitudinal cross section, and provided with reinforcing fibers extending continuously or intermittently at least between both side frames.
    Type: Application
    Filed: July 9, 2012
    Publication date: June 12, 2014
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Satoshi Matsumoto, Koji Yamaguchi, Yoshito Kuroda
  • Publication number: 20140139004
    Abstract: A backrest frame structure made of a resin and having a gate-shaped profile includes side frames extending in parallel to each other on both sides thereof and a transverse frame extending between top portion of the side frames integrally connected to the transverse frame, wherein a belt-shaped FRP sheet in which reinforcing fibers are unidirectionally-oriented is set as extending continuously or intermittently at least on the transverse frame between the side frames, and a matrix resin of the set FRP sheet and a resin constituting the transverse frame are integrally joined.
    Type: Application
    Filed: July 6, 2012
    Publication date: May 22, 2014
    Applicant: Toray Industries, Inc.
    Inventors: Satoshi Matsumoto, Koji Yamaguchi, Yoshito Kuroda
  • Patent number: 8679672
    Abstract: Provided is a flat battery with a molded gasket extending from the opening edge of the seal can to the flat portion, where the gasket may be prevented from exfoliating from the inner surface of the seal can. A flat battery (1) includes: a negative electrode can (10) (exterior can) shaped as a cylinder with a bottom; a positive electrode can (20) (seal can) having a peripheral wall (22) (cylinder portion) and a flat portion (21), the positive electrode can being disposed as an inverted dish with respect to the negative electrode can (10); and a gasket (30) molded at least on an inner surface of the positive electrode can (20), extending from the opening edge of the peripheral wall (22) to the flat portion (21).
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: March 25, 2014
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Koji Yamaguchi, Toshihiko Ishihara
  • Publication number: 20140072331
    Abstract: A developer accommodating container for accommodating a developer includes; an opening for permitting discharge of the developer; and a sealing member, mounted on the developer accommodating container, capable of exposing the opening by being moved. At least a part of the sealing member is formed of a material having compatibility with a material for forming the developer accommodating container and a material having incompatibility with the materiel for forming the developer accommodating container. Either one of the material having the compatibility and the material having the incompatibility is dispersed in the other one of the materials.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 13, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masaaki Matsushita, Koji Yamaguchi, Junichi Matsumura, Masatomi Yoshida
  • Publication number: 20140072346
    Abstract: A developer accommodating container for accommodating a developer for image formation, includes a first flexible member having a three-dimensional shape; a second flexible member for forming a space for accommodating the developer by covering a part of the first flexible member; wherein the developer accommodating container is constituted by bonding the first flexible member and the second flexible member to each other, and an injection opening, provided between the first flexible member and the second flexible member, for permitting injection of the developer into the developer accommodating container. An adjacent side, which is one of sides constituting an outer configuration of the three-dimensional shape and which is adjacent to the injection opening, has an angle of less than 90 degrees with respect to an injection direction of the developer at the injection opening.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 13, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masaki Furutani, Kojiro Yasui, Hiroomi Matsuzaki, Koji Yamaguchi
  • Publication number: 20140016961
    Abstract: A developer accommodating container for accommodating a developer includes a developer bag 16 provided with an injection port for permitting entrance of the developer and an opening 35a for permitting discharge of the developer and includes a sealing member 19 which includes a bonded portion bonded to the developer bag 16 so as to seal the opening and which is capable of exposing the opening by peeling the bonded portion from the developer bag 16 by being moved, and the sealing member includes a first bonded portion 22a in an upstream side of the opening and a second bonded portion 22b in a downstream side of the opening with respect to a sealing member unsealing direction, the first bonded portion and the second bonded portion interposing the opening, and the second bonded portion is provided in a non-contact position with the opening.
    Type: Application
    Filed: September 16, 2013
    Publication date: January 16, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kojiro Yasui, Hiroomi Matsuzaki, Koji Yamaguchi, Masaaki Matsushita, Tatsuo Fujisaki, Masaki Furutani
  • Publication number: 20130337253
    Abstract: An injection molded body includes a fiber reinforced thermoplastic resin composition formed by combining fibrous filler with thermoplastic resin so that the weight average fiber length in the injection molded body is 300 ?m or more, and the injection molded body has a skin layer, a core layer and a skin layer in this order in the thickness direction. The thickness of the core layer, in which the primary orientation direction of the fibrous filler is 40° or less when the direction perpendicular to the flow direction of the resin composition at the time of injection molding is set at 0°, is 20% or less relatively to the thickness of the injection molded body.
    Type: Application
    Filed: February 24, 2012
    Publication date: December 19, 2013
    Applicant: Toray Industries, Inc.
    Inventors: Koji Yamaguchi, Masaru Tateyama, Nobuhiko Shimizu, Hironori Imai
  • Publication number: 20130336679
    Abstract: A developer containing unit configured to contain a developer, the developer containing unit including: a flexible container configured to contain the developer and provided with an opening portion through which the developer is discharged; a frame configured to accommodate the flexible container; a pressure member provided in the frame and configured to deform the flexible container; and an abutment portion extending in a longitudinal direction of the frame and at which the flexible container and the frame abut against each other.
    Type: Application
    Filed: June 4, 2013
    Publication date: December 19, 2013
    Inventors: Masaki Furutani, Koji Yamaguchi, Tetsuo Uesugi, Junichi Matsumura, Tomonori Matsunaga
  • Publication number: 20130322135
    Abstract: A low-loss compact and a method for producing the compact are provided. A method for producing a compact by using coated soft magnetic powder that includes coated soft magnetic particles constituted by soft magnetic particles and insulating coatings coating outer peripheries of the soft magnetic particles includes a raw material preparation step and an irradiation step. In the raw material preparation step, a raw compact is prepared by press-forming coated soft magnetic powder. In the irradiation step, part of a surface of the raw compact is irradiated with a laser. Irradiating a part of a surface of a raw compact with laser increases the number of disrupted portions of conductive portions where constituent materials of the soft magnetic particles at the surface of the raw compact have become conductive to each other, and the loss of the compact can be decreased.
    Type: Application
    Filed: December 28, 2011
    Publication date: December 5, 2013
    Applicants: Sumitomo Electric Sintered Alloy, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Kazushi Kusawake, Masato Uozumi, Atsushi Sato, Koji Yamaguchi, Mamoru Ono, Hiroyuki Murase, Kazuo Nakamae
  • Patent number: 8577252
    Abstract: A process cartridge detachably mountable to a main assembly of an image forming apparatus includes an image-bearing member on which an electrostatic image is to be formed; a first frame; a bearing member, detachably mountable to the first frame, for rotatably supporting the image-bearing member; a first hole provided in the bearing member; a first wall, provided on the first frame, in which a second hole is provided; a second frame for rotatably supporting a developer carrying member on which a developer for developing the electrostatic image is to be carried; a second wall, provided on the second frame, in which a third hole is provided; and a connecting member including a shaft portion penetrating through the first hole, the second hole and the third hole and tightly engaging in the second hole, and including a flange portion, provided at an end portion of the shaft portion, for preventing the bearing member from being detached from the first frame.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: November 5, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Osamu Anan, Koji Yamaguchi, Kazuhiko Kanno