Patents by Inventor Hiroyuki Okawa

Hiroyuki Okawa 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: 20180061525
    Abstract: A multi-core cable for vehicles comprises two power lines, two signal lines, two electric wires, and a jacket. The two power lines are the same in size and material, each comprise an insulation layer composed of an inner layer and an outer layer, and are excellent in abrasion resistance and bending resistance. The two signal lines are the same in size and material and the two lines are twisted as a set to constitute a twisted pair of the signal lines. The two electric wires are the same in size and material and the two wires are twisted as a set to constitute a twisted pair of the electric wires. The two power lines, the twisted pair of the signal lines, and the twisted pair of the electric wires are integrally twisted.
    Type: Application
    Filed: August 17, 2017
    Publication date: March 1, 2018
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Takaya KOHORI, Hiroyuki OKAWA
  • Publication number: 20180005723
    Abstract: A coated electric wire includes a resin insulating layer configured to cover a conductor, the insulating layer covers the conductor with a thickness of 0.3 mm to 0.4 mm, a cross-sectional area of the conductor is 1.5 mm2 to 3.0 mm2, the conductor is configured by stranding a plurality of stranded wires, each of the stranded wires is configured by stranding a plurality of wires, and a diameter of the wires constituting the stranded wire arranged at a center of the conductor is greater than a diameter of the wires constituting the other stranded wires.
    Type: Application
    Filed: June 16, 2017
    Publication date: January 4, 2018
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Takaya KOHORI, Hiroyuki OKAWA
  • Publication number: 20170309373
    Abstract: Provided are a core electric wire for multi-core cable that is superior in flex resistance at low temperature, and a multi-core cable employing the same. A core electric wire for multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer that covers an outer periphery of the conductor, in which, in a transverse cross section of the conductor, a percentage of an area occupied by void regions among the element wires is from 5% to 20%. An average area of the conductor in the transverse cross section is preferably from 1.0 mm2 to 3.0 mm2. An average diameter of the element wires in the conductor is preferably from 40 ?m to 100 ?m, and the number of the element wires is preferably from 196 to 2,450. The conductor is preferably obtained by twisting stranded element wires obtained by twisting subsets of element wires.
    Type: Application
    Filed: September 30, 2015
    Publication date: October 26, 2017
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki TANAKA, Shinya NISHIKAWA, Hiroyuki OKAWA, Takaya KOHORI, Yuhei MAYAMA, Takayuki HIRAI
  • Publication number: 20170309370
    Abstract: Provided are a core electric wire for a multi-core cable superior in flex resistance at low temperature, and a multi-core cable employing the same. The core electric wire for a multi-core cable according to an aspect of the present invention comprises a conductor obtained by twisting element wires, and an insulating layer covering the conductor, a principal component of the insulating layer being a copolymer of ethylene and an ?-olefin having a carbonyl group; the ?-olefin content in the copolymer being 14% to 46% by mass; and a mathematical product C*E being 0.01 to 0.9, wherein C is a linear expansion coefficient of the insulating layer at from 25° C. to ?35° C., and E is a modulus of elasticity thereof at ?35° C. Average area of the conductor in the transverse cross section is 1.0 to 3.0 mm2. Average diameter of the element wires in the conductor is 40 to 100 ?m, and number of the element wires is 196 to 2,450.
    Type: Application
    Filed: September 30, 2015
    Publication date: October 26, 2017
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Shigeyuki TANAKA, Shinya NISHIKAWA, Hiroyuki OKAWA, Takaya KOHORI, Yuhei MAYAMA, Takayuki HIRAI
  • Patent number: 9470614
    Abstract: A chemically strengthened glass is disposed on a base, and an impacting object is dropped from above in a state where one surface of the chemically strengthened glass is in contact with an abrasive surface of a sandpaper containing an abrasive having a size of not smaller than a depth of a compressive stress layer.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: October 18, 2016
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hiroyuki Okawa, Kazuhiko Yamanaka
  • Publication number: 20150147538
    Abstract: A chemically strengthened glass sheet, which has front and back main surfaces and an edge surface between the front and back main surfaces, has undergone a chemical strengthening treatment and has an approximately rectangular shape, in which the chemically strengthened glass sheet has a surface compressive stress of 800 MPa or more, and an internal tensile stress of 42 MPa or less.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Applicant: Asahi Glass Company, Limited
    Inventors: Masayuki ISHIMARU, Hiroyuki OKAWA, Syusaku AKIBA, Shigeki SAWAMURA, Kazutaka ONO, Tetsuya NAKASHIMA, Izuru KASHIMA, Yusuke KOBAYASHI, Suguru MURAYAMA, Aya YAMAMOTO
  • Publication number: 20140150525
    Abstract: A chemically strengthened glass is disposed on a base, and an impacting object is dropped from above in a state where one surface of the chemically strengthened glass is in contact with an abrasive surface of a sandpaper containing an abrasive having a size of not smaller than a depth of a compressive stress layer.
    Type: Application
    Filed: February 4, 2014
    Publication date: June 5, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hiroyuki Okawa, Kazuhiko Yamanaka
  • Patent number: 7149944
    Abstract: A semiconductor integrated circuit device includes a semiconductor memory circuit device, a first sequencer, and a second sequencer. The semiconductor memory circuit device stores data. The first sequencer controls writing of data into the semiconductor memory circuit device. The second sequencer controls reading of data from the semiconductor memory circuit device.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: December 12, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroyuki Okawa, Junji Mori
  • Publication number: 20050182993
    Abstract: A semiconductor integrated circuit device includes a semiconductor memory circuit device, a first sequencer, and a second sequencer. The semiconductor memory circuit device stores data. The first sequencer controls writing of data into the semiconductor memory circuit device. The second sequencer controls reading of data from the semiconductor memory circuit device.
    Type: Application
    Filed: May 25, 2004
    Publication date: August 18, 2005
    Inventors: Hiroyuki Okawa, Junji Mori
  • Patent number: 6510307
    Abstract: A transfer device for transferring an image on an image carrier 1 to a recording material 2, the transfer device includes a transferring member 4 adapted to nip and convey the recording material 2 between the transferring member 4 and the image carrier 1, a guard resin layer 5 having a surface microhardness not smaller than surface microhardness corresponding to polyimide, the guard resin layer 5 provided on a surface of the transferring member 4, and an adjustment resistance layer 6 provided as a ground layer of the guard resin layer 5, the adjustment resistance layer 6 adapted to inhibit an accumulation of charge in the guard resin layer 5. Or, the guard resin layer 5 made of an epoxy resin is provided on the surface of the transferring member 4, the adjustment resistance layer 6 having a smooth interface with the guard resin layer 5, the adjustment resistance layer 6 adapted to inhibit accumulation of charge in the guard resin layer.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: January 21, 2003
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masahiro Sato, Toshihiko Mitsuhashi, Yusuke Kitagawa, Kazuya Yamanoi, Ryuichi Yamamoto, Hiroyuki Okawa, Koji Miyake, Koichi Matsumoto, Takeshi Kawai, Shoichi Morita, Toshio Masubuchi
  • Publication number: 20020102115
    Abstract: A transfer device for transferring an image on an image carrier 1 to a recording material 2, the transfer device comprises a transferring member 4 adapted to nip and convey the recording material 2 between the transferring member 4 and the image carrier 1, a guard resin layer 5 having a surface microhardness not smaller than surface microhardness corresponding to polyimide, the guard resin layer 5 provided on a surface of the transferring member 4, and an adjustment resistance layer 6 provided as a ground layer of the guard resin layer 5, the adjustment resistance layer 6 adapted to inhibit an accumulation of charge in the guard resin layer 5. Or, the guard resin layer 5 made of an epoxy resin is provided on the surface of the transferring member 4, the adjustment resistance layer 6 having a smooth interface with the guard resin layer 5, the adjustment resistance layer 6 adapted to inhibit accumulation of charge in the guard resin layer.
    Type: Application
    Filed: September 4, 2001
    Publication date: August 1, 2002
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Masahiro Sato, Toshihiko Mitsuhashi, Yusuke Kitagawa, Kazuya Yamanoi, Ryuichi Yamamoto, Hiroyuki Okawa, Koji Miyake, Koichi Matsumoto, Takeshi Kawai, Shoichi Morita, Toshio Masubuchi
  • Patent number: 5897033
    Abstract: A container has a valve (2) and a lid (3) which covers the valve (2) from the outside. The valve (3) includes a slit (23) which opens due to outward deformation of the valve (3) when the internal pressure of the body (1) is higher than atmospheric pressure, and which closes due to elasticity of the valve (3) when the internal pressure is approximately equal to atmospheric pressure. The container of the present invention further comprises a pushing structure (4) formed on the inside of the lid (3), this pushing structure (4) being shaped so as to come into contact with the valve (2) when the lid (3) is shut, thereby pushing the valve (2) slightly inwards to open the slit (23).
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: April 27, 1999
    Assignees: Yoshino Kogyosho Co., Ltd., Kao Corporation
    Inventors: Hiroyuki Okawa, Hiroshi Mizushima, Tetsuhiro Osawa, Shinichi Inaba
  • Patent number: 5358453
    Abstract: A power transmission belt having a belt body with a length and a plurality of cogs spaced lengthwise along the belt body for engaging a pulley with which the belt cooperates. Adjacent cogs are configured (i.e. shape, length and pitch) and relatively located (i.e. spaced) so that the adjacent cogs contact each other as the power transmission belt is wrapped around a cooperating pulley having a diameter of 60-130 mm. The space between the cogs is thus temporarily at least partially eliminated. In one form, the cogs squeeze together so that adjacent abutting cogs and the engaged cooperating pulley momentarily define a solid mass so that percussion noise is minimized.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: October 25, 1994
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Taisuke Kimura, Hiroyuki Okawa
  • Patent number: 4891040
    Abstract: Woven fabric for use in a power transmission belt. The fabric has a warp of shrinkable yarns obtained by aligning and twisting individual shrinkable mixed twisted yarns. Alternatively, the warp may be formed of more than two mixed twisted yarns mixed in a ratio of greater than 1:15 of elastic yarns formed of polyurethane fibrous yarns oriented at more than 10%, or rubber yarns and other fibrous yarns. The weft is made alternatively of twisted yarns or monofilament yarns. The fabric has excellent shrinkability, wear resistance, and crack resistance.
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: January 2, 1990
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Takaji Nagai, Hiroyuki Okawa, Takahide Mizuno, Fumihito Nakagawa
  • Patent number: 4427403
    Abstract: A belt tooth is provided with an arcuate surface at its tip for engaging and compressing against the bottom surface of a pulley groove to decrease noise and vibration in a toothed belt power transmission system.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: January 24, 1984
    Assignees: Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Mitsuboshi Belting Ltd.
    Inventors: Katsuo Kanamori, Hiroyuki Okawa, Takahide Mizuno, Fumihito Nakagawa, Isamu Nagai