Patents by Inventor Tomoharu Yamada

Tomoharu 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: 20220290918
    Abstract: A natural gas liquefying apparatus includes: a precooling unit, which is a treatment unit configured to precool natural gas; a liquefying unit, which is a treatment unit configured to liquefy the natural gas; a refrigerant cooling unit, which is a treatment unit configured to cool a liquefying refrigerant; a compression unit configured to compress vaporized refrigerants; and a pipe rack including air-cooled coolers arrayed and arranged on an upper surface. The treatment units and the compression unit are separately arranged in a first arrangement region and a second arrangement region arranged opposed to each other across a long side of the pipe rack. The pipe rack interposed between the first and second arrangement regions has a region in which no air-cooled cooler is arranged in order to arrange a plurality of pipes, through which refrigerants are allowed to flow, in a direction of a short side of the pipe rack.
    Type: Application
    Filed: October 29, 2019
    Publication date: September 15, 2022
    Applicant: JGC CORPORATION
    Inventors: Yoshinori YAMADA, Kaoru SAWAYANAGI, Tomoharu INOUE, Yuichi YOSHIZAWA, Masahito SEIWA, Ken ICHIMURA
  • Publication number: 20220241843
    Abstract: A joining device comprises a die and driving means. A first concave portion is recessed in a substantially cylindrical shape in a driving direction on the die, and a second concave portion is recessed in the driving direction in a central portion on a bottom face of the first concave portion. A portion on an external side of the second concave portion on the bottom face of the first concave portion forms a terrace portion that is shallower than the second concave portion, and a diameter of the foot portion of the self-piercing rivet corresponds to a diameter of the terrace portion. In driving the foot portion of the self-piercing rivet toward the terrace portion of the first concave portion, the foot portion of the self-piercing rivet is spread outward by the terrace portion and a part of the members to be joined runs into the second concave portion.
    Type: Application
    Filed: December 28, 2021
    Publication date: August 4, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke UCHIDA, Yuya SEGAWA, Satoshi YAMADA, Tomoharu HARADA, Naoki NISHIKAWA, Hidekatsu ONODERA
  • Patent number: 9140822
    Abstract: A long-period vibration sensor includes an overdamped accelerometer including a magnet fixed to the inside of a casing, a detection coil disposed between magnetic poles formed due to the magnet, a bobbin configured to hold the detection coil, and a support spring configured to support the bobbin in the casing so that the bobbin can vibrate in a predetermined direction, a voltage being outputted from the detection coil when the bobbin is damped, a plurality of digital filters having different frequency characteristics from one another, a selection module configured to select one digital filter from the plurality of digital filters based on an output value of the voltage outputted from the overdamped accelerometer, and a correction module configured to correct the output value of the voltage outputted from the overdamped accelerometer using the digital filter selected by the selection module.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: September 22, 2015
    Assignee: MITUTOYO CORPORATION
    Inventors: Daigo Senkoji, Hiroshi Yamakawa, Ken Matsushiro, Tomoharu Yamada
  • Publication number: 20130025346
    Abstract: A long-period vibration sensor includes an overdamped accelerometer including a magnet fixed to the inside of a casing, a detection coil disposed between magnetic poles formed due to the magnet, a bobbin configured to hold the detection coil, and a support spring configured to support the bobbin in the casing so that the bobbin can vibrate in a predetermined direction, a voltage being outputted from the detection coil when the bobbin is damped, a plurality of digital filters having different frequency characteristics from one another, a selection module configured to select one digital filter from the plurality of digital filters based on an output value of the voltage outputted from the overdamped accelerometer, and a correction module configured to correct the output value of the voltage outputted from the overdamped accelerometer using the digital filter selected by the selection module.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 31, 2013
    Applicant: MITUTOYO CORPORATION
    Inventors: Daigo SENKOJI, Hiroshi YAMAKAWA, Ken MATSUSHIRO, Tomoharu YAMADA
  • Patent number: 8220336
    Abstract: A movable plate is provided to a pendulum displaceable by external vibration. A fixed plate is provided to a position opposite to the movable plate. A displacement detector detects an electrostatic capacitance between the plates. A servo amplifier supplies to a force coil, a current in an amount associated with the detection result. A current circuit and a load resistor of the force coil convert the current into a detection signal and output the signal. When the movable plate and the fixed plates, which are conducted to each other, are contacted, the electrostatic capacitance between the plates is removed. A processor detects a change in the detection signal due to the removal of the electrostatic capacitance, and then determines that the plates are contacted.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: July 17, 2012
    Assignee: Mitutoyo Corporation
    Inventors: Tomoharu Yamada, Kiichiro Nemoto
  • Publication number: 20100326197
    Abstract: A movable plate is provided to a pendulum displaceable by external vibration. A fixed plate is provided to a position opposite to the movable plate. A displacement detector detects an electrostatic capacitance between the plates. A servo amplifier supplies to a force coil, a current in an amount associated with the detection result. A current circuit and a load resistor of the force coil convert the current into a detection signal and output the signal. When the movable plate and the fixed plates, which are conducted to each other, are contacted, the electrostatic capacitance between the plates is removed. A processor detects a change in the detection signal due to the removal of the electrostatic capacitance, and then determines that the plates are contacted.
    Type: Application
    Filed: May 27, 2010
    Publication date: December 30, 2010
    Applicant: MITUTOYO CORPORATION
    Inventors: Tomoharu YAMADA, Kiichiro NEMOTO
  • Patent number: 6725708
    Abstract: A hardness testing apparatus comprises a sample table mounting a sample thereon, a loading arm having an indentor at its free end, a loading arm operation controlling unit, an electromagnetic brake. When the same is elevated and brought into contact with the indentor, the loading arm is moved upwardly. The loading arm operation controlling unit calculates a predetermined force to be applied to the sample in response to a displacement from a reference position of the loading arm when and after the sample is brought into contact with the indentor. The loading arm is moved upwardly such that a predetermined force calculated by the loading arm operating controlling unit is applied to the sample. The electromagnetic brake controls an elevating operation of the sample table. A direction of a current supplied to the electromagnetic brake is inverted at a predetermined timing.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: April 27, 2004
    Assignee: Akashi Corporation
    Inventors: Masaru Kawazoe, Mituru Oda, Tomoharu Yamada
  • Publication number: 20040050149
    Abstract: A hardness testing apparatus comprises a sample table mounting a sample thereon, a loading arm having an indentor at its free end, a loading arm operation controlling unit, an electromagnetic brake. When the sample is elevated and brought into contact with the indentor, the loading arm is moved upwardly. The loading arm operation controlling unit calculates a predetermined force to be applied to the sample in response to a displacement from a reference position of the loading arm when and after the sample is brought into contact with the indentor. The loading arm is moved upwardly such that a predetermined force calculated by the loading arm operating controlling unit is applied to the sample. The electromagnetic brake controls an elevating operation of the sample table. A direction of a current supplied to the electromagnetic brake is inverted at a predetermined timing.
    Type: Application
    Filed: September 13, 2002
    Publication date: March 18, 2004
    Applicant: Akashi Corporation
    Inventors: Masaru Kawazoe, Mituru Oda, Tomoharu Yamada
  • Patent number: 5137981
    Abstract: A novel halogenated polybutadiene series elastomer is produced by reacting a polybutadiene series elastomer with a particular active halogen group-containing compound in the presence of a particular organic halogenating agent. The resulting halogenated polybutadiene series elastomer can be subjected to heat-resistant crosslinking with a particular polyvalent amine, and is suitable for the preparation of rubber compositions for tire requiring the heat resistance.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: August 11, 1992
    Assignee: Bridgestone Corporation
    Inventors: Tomoharu Yamada, Ryota Fujio
  • Patent number: 5104476
    Abstract: Two vulcanizates are adhered to each other by (I) applying a particular rubber cement composition to surfaces of the vulcanizates to be adhered and drying it; and (II) sandwiching an unvulcanized rubber sheet of a particular cushion rubber composition between the applied surfaces of the vulcanizates and fulcanizing them at a temperature of 0.degree.-100.degree. C. under pressure.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: April 14, 1992
    Assignee: Bridgestone Corporation
    Inventors: Tomoharu Yamada, Ryota Fujio
  • Patent number: 4519431
    Abstract: A styrene-butadiene copolymer having a high styrene content is disclosed, which is obtained by polymerizing styrene and butadiene in a hydrocarbon solvent in the presence of an organolithium compound and, if necessary, a Lewis base and then coupling with a tin halide compound. This copolymer contains in its main chain at least 30 wt % of polymer having a tin-carbon bond and has a bound styrene content of more than 25 wt % but not more than 60 wt % and a content of vinyl bond in butadiene portion of not less than 30% but less than 50%.
    Type: Grant
    Filed: July 19, 1984
    Date of Patent: May 28, 1985
    Assignees: Bridgestone Tire Company Limited, Japan Synthetic Rubber Co., Ltd.
    Inventors: Yoshito Yoshimura, Noboru Oshima, Isamu Shimizu, Shinsuke Yamaguchi, Tatsuo Fujimaki, Tomoharu Yamada, Seisuke Tomita
  • Patent number: 4485205
    Abstract: Rubber compositions for tires having low rolling resistance and excellent running stability consist mainly of a rubber blend consisting of 10-90% by weight of a high vinyl amorphous butadiene-styrene copolymeric rubber obtained by copolymerizing styrene with 1,3-butadiene and containing 3-30% by weight of bonded styrene and not less than 60% by weight of 1,2-bond in butadiene unit, and 90-10% by weight of a dienic rubber having a glass transition temperature of lower than -60.degree. C.
    Type: Grant
    Filed: November 29, 1982
    Date of Patent: November 27, 1984
    Inventors: Tatsuo Fujimaki, Tomoharu Yamada, Keiko Katayama, Seisuke Tomita
  • Patent number: 4481995
    Abstract: A pneumatic radial tire having sidewalls, the rubber composition of said sidewalls comprising, based on 100 parts by weight of rubber, 20 to 90 parts by weight of butadienepiperylene copolymer and 80 to 10 parts by weight of at least one rubbery diene polymer selected from the group consisting of natural rubber, synthetic polyisoprene rubber, polybutadiene rubber, butadiene-styrene copolymer rubber, ethylenepropylene-diene ternary copolymer rubber and acrylonitrile-butadiene copolymer rubber.
    Type: Grant
    Filed: September 14, 1982
    Date of Patent: November 13, 1984
    Assignee: Bridgestone Tire Co., Ltd.
    Inventors: Masaki Ogawa, Yasushi Hirata, Tatsuo Fujimaki, Tomoharu Yamada, Seisuke Tomita
  • Patent number: 4396743
    Abstract: A rubber composition adapted to be used as a tread rubber is disclosed. The rubber composition has remarkably improved resistance against heat generation, breakage resistance, wear resistance, wet skid resistance and low-temperature brittleness, and consists mainly of a rubber blend consisting of 20-95 parts by weight of a styrene-butadiene block copolymer having a specifically limited structure and 80-5 parts by weight of a diene rubber.
    Type: Grant
    Filed: December 23, 1981
    Date of Patent: August 2, 1983
    Assignee: Bridgestone Tire Company Limited
    Inventors: Tatsuo Fujimaki, Tomoharu Yamada, Seisuke Tomita
  • Patent number: 4383085
    Abstract: A rubber composition for tire having low rolling resistance and high wet skid resistance, breakage strength and wear resistance consists mainly of a rubber component containing at least 20 parts by weight of a high vinyl butadiene-styrene copolymer rubber obtained by copolymerizing randomly styrene with 1,3-butadiene, and containing 3-30% by weight of bonded styrene and 60-95% by weight of 1,2-bond in butadiene unit, and further containing metal-butadienyl bonds in its main chain in a weight fraction of at least 20% by weight.
    Type: Grant
    Filed: September 16, 1981
    Date of Patent: May 10, 1983
    Assignee: Bridgestone Tire Co., Ltd.
    Inventors: Tatsuo Fujimaki, Shinsuke Yamaguchi, Tomoharu Yamada, Seisuke Tomita