Patents by Inventor Haruo Yamada

Haruo Yamada 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: 20200278518
    Abstract: An imaging lens comprises in order from an object, a first lens group of positive refractive power, a second lens group of positive refractive power, and a third lens group of negative refractive power. In focusing from infinity to a close object, the first lens group is fixed in position, and the second lens group and the third lens group are moved so that the distance between the first lens group and the second lens group is reduced, and the distance between the second lens group and the third lens group is increased. Further, the following conditional expression (1) is satisfied: 1.0<f1/f<2.5??(1) where f1: is the focal length of the first lens group, and f: the focal length of the entire system.
    Type: Application
    Filed: May 15, 2020
    Publication date: September 3, 2020
    Inventors: Keiko YAMADA, Ryosuke IMAJIMA, Wataru TATSUNO, Haruo SATO
  • Publication number: 20200248721
    Abstract: A hydraulic system includes: a single-rod hydraulic cylinder; a variable displacement pump driven by a rotating machine; a rod-side supply line and a head-side supply line that connect the pump to the hydraulic cylinder; a first tank line that is branched off from the rod-side supply line and connects to a tank; a second tank line that is branched off from the head-side supply line and connects to the tank; and a flow rate adjuster. The flow rate adjuster is configured to: switch a delivery capacity of the pump to a first setting value when a pressure of the head-side supply line is higher than a pressure of the rod-side supply line; and switch the delivery capacity of the pump to a second setting value less than the first setting value when the pressure of the rod-side supply line is higher than the pressure of the head-side supply line.
    Type: Application
    Filed: September 21, 2018
    Publication date: August 6, 2020
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Akihiro KONDO, Hiroaki MITSUI, Toshihisa TOYOTA, Haruo YAMADA
  • Patent number: 10604004
    Abstract: A grille shutter unit which is provided with plural shutters extending in a vehicle width direction is attached to a frame-shaped shroud, a center stay is provided to extend in a vertical direction and connect a central portion, in a width direction, of a shroud upper and a central portion, in the width direction, of a shroud lower, the grille shutter unit is attached to a back-face side of the shroud, and an actuator (driving actuator) for opening/closing the shutters is arranged at a back-face side of the center stay.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: March 31, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Shunsuke Fujitani, Daisuke Sakagami, Haruo Etchu, Nobuyuki Nakayama, Yuhki Takanaga, Takeshi Yamada, Masahide Kanemori
  • Patent number: 10350991
    Abstract: A grille shutter unit which is provided with shutters and a frame which pivotally supports shutter shafts provided at the shutters is attached to a frame-shaped shroud which supports heat exchangers. The grille shutter unit is configured to be attached to the shroud from a back-face side of the shroud at a position located in front of the heat exchangers.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: July 16, 2019
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Shunsuke Fujitani, Daisuke Sakagami, Haruo Etchu, Nobuyuki Nakayama, Yuhki Takanaga, Takeshi Yamada, Masahide Kanemori
  • Patent number: 9493629
    Abstract: An object of the present invention is to improve, in the raw material rubber compound particularly using a silica-based filler, which is used for tire tread, the balance between the rolling resistance and the skid resistance on a wet road surface and at the same time, improve the wear resistance is enhanced. The present invention provides an oil-extended polymer composition comprising 100 parts by weight of (A) a polymer having a number average molecular weight Mn of 500,000 to 700,000 and a content of a functional group-containing polymer component to be adsorbed to silica of 50 wt % or more, and from 20 to 60 parts by weight of (B) an extender oil.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: November 15, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Haruo Yamada, Takaaki Matsuda, Yuichi Kitagawa
  • Patent number: 9352654
    Abstract: A slider is slightly moved in a direction in which both side surfaces of the slider come in contact with inclined surfaces of impact mitigating parts of neighboring contact strip pieces. For this reason, the inclined surface of the impact mitigating part of the contact strip piece which the slider approaches is relatively downwardly slid with respect to one side surface of the slider. In addition, the inclined surface of the impact mitigating part of the contact strip piece from which the slider moves away is relatively upwardly slid with respect to the other side surface of the slider. As a result, since an impact generated between the contact strip piece and the slider is mitigated by the impact mitigating part without fitting the slider into a stepped section between the neighboring contact strip pieces, the slider is smoothly transferred from the one contact strip piece of the neighboring contact strip pieces to the other contact strip piece.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: May 31, 2016
    Assignees: East Japan Railway Company, Toyo Electric Mfg. Co., Ltd.
    Inventors: Haruo Yamada, Takeshi Kurita, Fumio Mizushima, Shinji Nakajima, Hitoshi Satoh
  • Patent number: 9221344
    Abstract: When a plurality of contact plate pieces are arranged on a loading part of a contact plate assembly jig, the plurality of contact plate pieces are arranged by a contact plate piece aligning part in a row. Further, the neighboring contact plate pieces are held by an interval holding part at a predetermined interval (?1). When a plurality of movable guide parts are arranged on a conductive part and a movable guide assembly jig is mounted on the contact plate assembly jig, sliding surfaces of the plurality of movable guide parts are arranged on the same plane in a row by aligning surfaces of movable guide aligning parts. When the contact plate piece and the movable guide part is prevented by the contact plate piece aligning parts, the interval holding part and the movable guide aligning part.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: December 29, 2015
    Assignee: EAST JAPAN RAILWAY COMPANY
    Inventors: Haruo Yamada, Takeshi Kurita, Fumio Mizushima
  • Publication number: 20130270050
    Abstract: A slider is slightly moved in a direction in which both side surfaces of the slider come in contact with inclined surfaces of impact mitigating parts of neighboring contact strip pieces. For this reason, the inclined surface of the impact mitigating part of the contact strip piece which the slider approaches is relatively downwardly slid with respect to one side surface of the slider. In addition, the inclined surface of the impact mitigating part of the contact strip piece from which the slider moves away is relatively upwardly slid with respect to the other side surface of the slider. As a result, since an impact generated between the contact strip piece and the slider is mitigated by the impact mitigating part without fitting the slider into a stepped section between the neighboring contact strip pieces, the slider is smoothly transferred from the one contact strip piece of the neighboring contact strip pieces to the other contact strip piece.
    Type: Application
    Filed: September 30, 2011
    Publication date: October 17, 2013
    Applicants: TOYO ELECTRIC MFG., LTD., EAST JAPAN RAILWAY COMPANY
    Inventors: Haruo Yamada, Takeshi Kurita, Fumio Mizushima, Shinji Nakajima, Hitoshi Satoh
  • Publication number: 20130256073
    Abstract: When a plurality of contact plate pieces are arranged on a loading part of a contact plate assembly jig, the plurality of contact plate pieces are arranged by a contact plate piece aligning part in a row. Further, the neighboring contact plate pieces are held by an interval holding part at a predetermined interval (?1). When a plurality of movable guide parts are arranged on a conductive part and a movable guide assembly jig is mounted on the contact plate assembly jig, sliding surfaces of the plurality of movable guide parts are arranged on the same plane in a row by aligning surfaces of movable guide aligning parts. When the contact plate piece and the movable guide part is prevented by the contact plate piece aligning parts, the interval holding part and the movable guide aligning part.
    Type: Application
    Filed: September 30, 2011
    Publication date: October 3, 2013
    Applicant: EAST JAPAN RAILWAY COMPANY
    Inventors: Haruo Yamada, Takeshi Kurita, Fumio Mizushima
  • Patent number: 8106130
    Abstract: A modified conjugated diene polymer comprises a modifying group based on a low molecular weight compound having two or more tertiary amino groups and one or more alkoxysilyl groups in a molecule which bonds to a conjugated diene polymer obtained by polymerization of a conjugated diene compound or a conjugated diene polymer obtained by copolymerization of a conjugated diene compound and an aromatic vinyl compound. The process for producing the modified conjugated diene polymer comprises the steps of: polymerizing a conjugated diene compound or copolymerizing a conjugated diene compound and an aromatic vinyl compound in a hydrocarbon solvent using an alkali metal initiator and/or an alkaline earth metal initiator; and reacting active terminals of the resulting polymer with a low molecular weight compound having two or more tertiary amino groups and one or more alkoxysilyl groups in the molecule.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: January 31, 2012
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Ryoko Fukuoka, Haruo Yamada, Norifusa Ishimura
  • Patent number: 7915349
    Abstract: A process for producing a conjugated diene polymer composition, which comprises of polymerizing a conjugated diene compound or a conjugated diene compound and an aromatic vinyl compound in a hydrocarbon solvent in the presence of at least one compound selected from the group consisting of organoalkali metals and organoalkaline earth metals as an initiator and then reacting the active end of the resulting polymer with a low molecular compound represented by the following formula (1) or the following formula (2): wherein the variables R through R9 are as defined in the Specification.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: March 29, 2011
    Assignees: Asahi Kasei Chemicals Corporation, Shin-Etsu Chemical Co., Ltd.
    Inventors: Haruo Yamada, Keiichi Toda, Norifusa Ishimura
  • Publication number: 20090203843
    Abstract: A modified conjugated diene polymer comprises a modifying group based on a low molecular weight compound having two or more tertiary amino groups and one or more alkoxysilyl groups in a molecule which bonds to a conjugated diene polymer obtained by polymerization of a conjugated diene compound or a conjugated diene polymer obtained by copolymerization of a conjugated diene compound and an aromatic vinyl compound. The process for producing the modified conjugated diene polymer comprises the steps of: polymerizing a conjugated diene compound or copolymerizing a conjugated diene compound and an aromatic vinyl compound in a hydrocarbon solvent using an alkali metal initiator and/or an alkaline earth metal initiator; and reacting active terminals of the resulting polymer with a low molecular weight compound having two or more tertiary amino groups and one or more alkoxysilyl groups in the molecule.
    Type: Application
    Filed: July 19, 2007
    Publication date: August 13, 2009
    Inventors: Ryoko Fukuoka, Haruo Yamada, Norifusa Ishimura
  • Publication number: 20090163668
    Abstract: A process for producing a conjugated diene polymer composition, which comprises of polymerizing a conjugated diene compound or a conjugated diene compound and an aromatic vinyl compound in a hydrocarbon solvent in the presence of at least one compound selected from the group consisting of organoalkali metals and organoalkaline earth metals as an initiator and then reacting the active end of the resulting polymer with a low molecular compound represented by the following formula (1) or the following formula (2): (wherein in the formula (1), R1 represents an organic group containing an N atom not adjacent to the N atom of the aminosilyl group and having a molecular weight not greater than 1000, R2 represents a C1-10 hydrocarbon group or a C1-10 hydrocarbon group having no active hydrogen and substituted with an Si, O, N or S atom, R3 and R4 each independently represents a C1-20 alkyl group or aryl group, R5, R6, and R7 each represents a C1-20 alkyl group or aryl group or a C1-12 alkoxy group and g stands fo
    Type: Application
    Filed: September 19, 2006
    Publication date: June 25, 2009
    Applicants: Asahi Kasei Chemicals Corporation, Shin-Etsu Chemcial co., Ltd
    Inventors: Haruo Yamada, Keiichi Toda, Norifusa Ishimura
  • Publication number: 20090111933
    Abstract: An object of the present invention is to improve, in the raw material rubber compound particularly using a silica-based filler, which is used for tire tread, the balance between the rolling resistance and the skid resistance on a wet road surface and at the same time, improve the wear resistance is enhanced. The present invention provides an oil-extended polymer composition comprising 100 parts by weight of (A) a polymer having a number average molecular weight Mn of 500,000 to 700,000 and a content of a functional group-containing polymer component to be adsorbed to silica of 50 wt % or more, and from 20 to 60 parts by weight of (B) an extender oil.
    Type: Application
    Filed: March 29, 2006
    Publication date: April 30, 2009
    Inventors: Haruo Yamada, Takaaki Matsuda, Yuichi Kitagawa
  • Patent number: 7132471
    Abstract: The present invention provides rubber compositions having an excellent transparency and rubber properties comprising a rubbery polymer and an inorganic filler, and relates to specific methods of producing said rubber. Thus, they are rubber compositions comprising 100 parts by weight of at least one rubbery polymer and 5–150 parts by weight of an inorganic filler per 100 parts by weight of said rubbery polymer, wherein the haze is 50% or less, and the inorganic bulking agents are dispersed so that the number of circular regions with a diameter of 0.5 ?m or greater having no inorganic fillers is one or less and the number of circular regions with a diameter of 0.3 ?m or greater having no inorganic fillers is three or less in an image of a 5 ?m square of said rubber composition determined by a scanning probe microscope (SPM) and wherein the haze of said rubber composition having a thickness of 5 mm is 50% or less, and specific methods of producing them.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: November 7, 2006
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Hiroshi Fusamae, Haruo Yamada
  • Patent number: 6969739
    Abstract: A diene polymer rubber composition comprising (A) 100 parts by weight of a raw material rubber comprising (A-1) a diene rubbery polymer which is a conjugated diene rubber polymer or conjugated diene-styrene rubbery copolymer (1) containing a modified component in an amount exceeding 60 wt. %, which modified component is obtained by reacting an active end of the rubbery polymer with a polyfunctional compound having, in its molecule, at least two epoxy groups, (2) having a molecular weight distribution Mw/Mn of 1.05 to 3.0, and (3) having weight-average molecular weight of 100,000 to 2,000,000; and based on 100 parts of the component (A), (B) 1–100 parts by weight of rubber extension oil, (C) 25–100 parts by weight of reinforcing silica, and (D) 1.0 to 20 parts by weight in total of a vulcanizing agent and a vulcanizing accelerator.
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: November 29, 2005
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Akira Saito, Haruo Yamada, Nobuaki Kubo, Hiromi Nakafutami, legal representative, Yasunobu Nakafutami, deceased
  • Publication number: 20050165153
    Abstract: The present invention provides rubber compositions having an excellent transparency and rubber properties comprising a rubbery polymer and an inorganic filler, and relates to specific methods of producing said rubber. Thus, they are rubber compositions comprising 100 parts by weight of at least one rubbery polymer and 5-150 parts by weight of an inorganic filler per 100 parts by weight of said rubbery polymer, wherein the haze is 50% or less, and the inorganic bulking agents are dispersed so that the number of circular regions with a diameter of 0.5 ?m or greater having no inorganic fillers is one or less and the number of circular regions with a diameter of 0.3 ?m or greater having no inorganic fillers is three or less in an image of a 5 ?m square of said rubber composition determined by a scanning probe microscope (SPM) and wherein the haze of said rubber composition having a thickness of 5 mm is 50% or less, and specific methods of producing them.
    Type: Application
    Filed: April 24, 2003
    Publication date: July 28, 2005
    Inventors: Hiroshi Fusamae, Haruo Yamada
  • Patent number: 6906152
    Abstract: The present invention provides a diene rubber composition having excellent processability and being improved in both the balance between low rolling resistance and wet skid resistance, and strength properties. The composition according to the invention is a diene polymer rubber composition comprising (A) 100 parts by weight of a raw material rubber comprising (A-1) a diene rubbery polymer which is a conjugated diene rubbery polymer or a conjugated diene-styrene rubbery copolymer (1) containing a modified component in an amount exceeding 60 wt. %, which modified component is obtained by reacting an active end of the rubbery polymer with a polyfunctional compound having, in its molecule thereof, at least two epoxy groups, (2) having a molecular weight distribution Mw/Mn of 1.05 to 3.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: June 14, 2005
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Akira Saito, Haruo Yamada, Hiromi Nakafutami, Yasunobu Nakafutami
  • Publication number: 20030199669
    Abstract: The present invention provides a diene rubber composition having excellent processability and being improved in both the balance between low rolling resistance and wet skid resistance, and strength properties. The composition according to the invention is a diene polymer rubber composition comprising (A) 100 parts by weight of a raw material rubber comprising (A-1) a diene rubbery polymer which is a conjugated diene rubbery polymer or a conjugated diene-styrene rubbery copolymer (1) containing a modified component in an amount exceeding 60 wt. %, which modified component is obtained by reacting an active end of the rubbery polymer with a polyfunctional compound having, in its molecule thereof, at least two epoxy groups, (2) having a molecular weight distribution Mw/Mn of 1.05 to 3.
    Type: Application
    Filed: March 10, 2003
    Publication date: October 23, 2003
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Akira Saito, Haruo Yamada, Yasunobu Nakafutami, Hiromi Nakafutami
  • Patent number: 5603090
    Abstract: A method for tracking, in a roaming receiver, RF channels in a multi-area system where each area has a unique RF channel and each unique RF channel has a unique address for each user. A plurality of telephone area codes are stored into a memory of the receiver with each of the telephone area codes corresponding to a different RF channel within the multi-area system. An address from the RF channel which is unique to the receiver for that specific RF channel is received by the receiver, each address corresponding to one of the stored telephone area codes. A telephone area code corresponding to the address is then retrieved from the receiver memory, and the telephone area code is displayed in a receiver display to allow a user to quickly recognize which area of the multi-area system the receiver is located within.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: February 11, 1997
    Assignee: Motorola, Inc.
    Inventors: Tuan K. Nguyen, Haruo Yamada, Kazuyuki Mori, Hiroshi Takahashi, Asao Hirano