Patents by Inventor Masaki Kawashima

Masaki Kawashima 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).

  • Patent number: 10651651
    Abstract: In a device with a built-in active filter, the device incorporating an active filter therein and being connected to an AC power source, the active filter operates based on a value detected by a load information detection unit detecting load information on an AC power source outside the device with a built-in active filter.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: May 12, 2020
    Assignee: Daikin Industries, Ltd.
    Inventors: Masaki Kono, Reiji Kawashima, Takayuki Fujita
  • Publication number: 20200142437
    Abstract: A load apparatus is connected to an AC power source and is supplied with power from the AC power source. An operation state control unit controls, based on a target value about a power-source quality including either a power-source power factor of the AC power source or a power-source harmonic of the AC power source and on a present power-source quality, an operation state of the load apparatus.
    Type: Application
    Filed: April 27, 2018
    Publication date: May 7, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masaki KONO, Reiji KAWASHIMA, Takayuki FUJITA
  • Publication number: 20200129896
    Abstract: A plurality of active filter devices (41, 42, 43) that each have an output connected to a harmonic-generating load device (2) and are capable of generating a compensating current for performing at least one of reduction of a harmonic current of the harmonic-generating load device (2) and improvement of the power factor of the fundamental wave are provided. The plurality of active filter devices (41, 42, 43) provide two or more types of capacities, and the number and combination of operating active filter devices among the active filter devices (41, 42, 43) change in accordance with the magnitude of the compensating current.
    Type: Application
    Filed: July 18, 2018
    Publication date: April 30, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masaki KONO, Reiji KAWASHIMA, Takayuki FUJITA
  • Publication number: 20200098673
    Abstract: A semiconductor device may include a first conductor plate on which a first semiconductor element, a second semiconductor element and a first circuit board are disposed, and a plurality of first signal terminals. A size of the second semiconductor is smaller than a size of the first semiconductor element. In a plan view along a direction perpendicular to the first conductor plate, the plurality of first signal terminals is located in a first direction with respect to the first semiconductor element. The second semiconductor element and the first circuit board are located between the plurality of first signal terminals and the first semiconductor element and are arranged along a second direction that is perpendicular to the first direction. A signal pad of the first semiconductor element is connected to a corresponding one of the plurality of first signal terminals via a signal transmission path of the first circuit board.
    Type: Application
    Filed: July 31, 2019
    Publication date: March 26, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takanori KAWASHIMA, Makoto IMAI, Masaki AOSHIMA
  • Publication number: 20190252881
    Abstract: In a device with a built-in active filter, the device incorporating an active filter therein and being connected to an AC power source, the active filter operates based on a value detected by a load information detection unit detecting load information on an AC power source outside the device with a built-in active filter.
    Type: Application
    Filed: December 8, 2017
    Publication date: August 15, 2019
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masaki KONO, Reiji KAWASHIMA, Takayuki FUJITA
  • Publication number: 20190238046
    Abstract: A current source capable of generating a current of a first compensation portion for either or both reducing a harmonic current in an air conditioner or improving a fundamental power factor in the air conditioner is provided. If an excess of the current source is larger than a second compensation portion for either or both reducing a harmonic current in a power receiving path of a distribution board or improving a fundamental power factor in the power receiving path of the distribution board, a current obtained through superimposition of a current of a second compensation component and a current of the first compensation component is generated in the current source.
    Type: Application
    Filed: July 11, 2017
    Publication date: August 1, 2019
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Reiji KAWASHIMA, Takayuki FUJITA, Masaki KOUNO
  • Publication number: 20190186596
    Abstract: A speed reducer-attached motor includes a rotation shaft on which a worm gear is provided and which is supported rotatably around a central axis via a plurality of bearings, a motor part that is driven to be rotated around the rotation shaft as a central axis, a speed reducer part that includes at least one or more gears which include a worm wheel that is engaged with the worm gear, and a casing on which a shaft accommodation groove that accommodates the rotation shaft, a bearing accommodation recess part that accommodates the bearing, and an accommodation recess part that accommodates the speed reducer part are formed, wherein the shaft accommodation groove, the bearing accommodation recess part, and the accommodation recess part open at a top surface portion side of the casing.
    Type: Application
    Filed: June 15, 2017
    Publication date: June 20, 2019
    Inventors: Tomoyasu Sugiyama, Yoshichika Kawashima, Yosuke Harigai, Masaki Hayata
  • Publication number: 20190168717
    Abstract: Provided is a wiper blade rubber which has excellent wiping properties and low friction properties with respect to both clean glass surfaces and glass surfaces that have been subjected to a water repellent treatment, and which maintains these properties for a long period of time. A wiper blade rubber which has a lip part wherein a coating layer is provided on a rubber substrate by (a) applying a first coating agent onto a part of the surface of the rubber substrate, (b) curing a first coating layer by heating the rubber substrate onto which the first coating agent is applied, (c) applying a second coating agent onto the surface of the rubber substrate which has the cured first coating layer and (d) drying the second coating agent.
    Type: Application
    Filed: July 7, 2017
    Publication date: June 6, 2019
    Applicant: FUKOKU CO., LTD.
    Inventors: Shuichi OHTSUBO, Yasuyuki OKAMOTO, Kazuki KAWASHIMA, Masaki SAKURAI, Hiroaki OHSAKO
  • Patent number: 8420188
    Abstract: A resin member fitting structure including a first resin member, which is a rectangular hollow tube, has at least one inner wall surface. A second resin member, which is a hollow or solid rectangular tube, has at least one outer wall surface fitted to the at least one inner wall surface of the first resin member. The inner wall surface of the first resin member and the outer wall surface of the second resin member come into contact with each other and define at least one set of fitting surfaces. The second resin member has a hygroscopic expansion coefficient that is smaller than that of the first resin member. The at least one fitting surface includes a plurality of recess-projection engagement structures spaced apart from each other in a circumferential direction that intersects a longitudinal direction of the first and second resin members.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: April 16, 2013
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Masaki Kawashima, Shinji Hasegawa, Giko Makino
  • Patent number: 7791454
    Abstract: A switch for urging a driver to perform an operation that is required when the smart ignition function is invalid. The switch is used by a driver to start the engine of a vehicle when the vehicle communicates with a portable device to verify the portable device. The portable device has an end portion. The switch includes a push button pushed by the driver. The push button includes a guide portion engaged with the end portion of the portable device.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: September 7, 2010
    Assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Tetsuya Egawa, Toru Maeda, Masaki Kawashima, Tomoyuki Funayama, Koji Iwamoto
  • Publication number: 20090162581
    Abstract: A resin member fitting structure including a first resin member, which is a rectangular hollow tube, has at least one inner wall surface. A second resin member, which is a hollow or solid rectangular tube, has at least one outer wall surface fitted to the at least one inner wall surface of the first resin member. The inner wall surface of the first resin member and the outer wall surface of the second resin member come into contact with each other and define at least one set of fitting surfaces. The second resin member has a hygroscopic expansion coefficient that is smaller than that of the first resin member. The at least one fitting surface includes a plurality of recess-projection engagement structures spaced apart from each other in a circumferential direction that intersects a longitudinal direction of the first and second resin members.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 25, 2009
    Applicant: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Masaki KAWASHIMA, Shinji HASEGAWA, Giko MAKINO
  • Publication number: 20090058597
    Abstract: A vehicle security system for improving convenience without lowering the security level. The vehicle communication system includes a plurality of portable devices and a communication controller, which communicates with the portable devices and controls a vehicle. The communication controller includes a first transmitter circuit, which transmits a first wireless signal within an area near the vehicle, a second transmitter circuit, which transmits a second wireless signal within an area in the passenger compartment of the vehicle, and a communication control unit, which controls at least the closing of a door lock. When a door lever is operated in a state in which the door lock is closed, the communication control unit closes the door lock when one of the portable devices is located near the vehicle and keeps the door lock closed when none of the portable devices is located near the vehicle.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 5, 2009
    Applicant: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Toshimasa SHIBAGAKI, Masaki KAWASHIMA
  • Publication number: 20050159131
    Abstract: An inexpensive communicator that forms an optimal communication electric field. A vehicle interior transmitter circuit includes a main transmitter circuit having a ferrite antenna for generating a main electric field. A closed loop antenna includes a basal end coil, inductively coupled to the main antenna, and a distal end coil, for generating an auxiliary electric field based on the inductive coupling.
    Type: Application
    Filed: January 19, 2005
    Publication date: July 21, 2005
    Applicant: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Toshimasa Shibagaki, Shigenori Nitta, Masaki Kawashima, Noriyasu Onishi
  • Publication number: 20040251744
    Abstract: A switch for urging a driver to perform an operation that is required when the smart ignition function is invalid. The switch is used by a driver to start the engine of a vehicle when the vehicle communicates with a portable device to verify the portable device. The portable device has an end portion. The switch includes a push button pushed by the driver. The push button includes a guide portion engaged with the end portion of the portable device.
    Type: Application
    Filed: June 1, 2004
    Publication date: December 16, 2004
    Applicant: Kabushiki Kaisha Tokai Rika Denki Seisakusho
    Inventors: Tetsuya Egawa, Toru Maeda, Masaki Kawashima, Tomoyuki Funayama, Koji Iwamoto
  • Patent number: 5027679
    Abstract: A tubular arrangement the front end of which defines a fastener outlet is extendably and contractably mounted to a fastener driver body. A drive bit is mounted within the tubular arrangement. A fastener feeder is mounted to the tubular arrangement and contains a pair of fastener guiding plates opposite each other with a predetermined distance sufficient to pass a strapped fastener assembly. One of the fastener guiding plates defines a fastener passage opening for feeding a fastener into the tubular arrangement through a fastener feed hole defined in the side wall of the tubular arrangement. A fastener feed mechanism with a feed roller intermittently engaging and advancing the strap is provided. A fastener separation element of a fastener separation mechanism passes into and out of the fastener passage clearance, presses the fastener and separates it from the strap when the fastener separation element extends out of the fastener passage clearance, to feed the separated fastener into the tubular arrangement.
    Type: Grant
    Filed: March 6, 1990
    Date of Patent: July 2, 1991
    Assignee: Masaki Kawashima
    Inventors: Masaki Kawashima, Kouichi Miyagaki
  • Patent number: 5005699
    Abstract: A strapped fastener assemblage for an automatic fastener driver includes a pair of connecting straps made of paper, each of which has a plastic film laminated onto one surface of the connecting strap. The plastic-film-side surfaces of the connecting straps are in contact with each other. A plurality of pin-like fasteners are arranged in parallel to one another with a predetermined spacing and each of the fasteners extend transversely of and between the connecting straps; and a plurality of fastener retainers are defined by a pair of heat-sealed portions in the connecting straps extending transversely of the connecting straps, and the fastener retainer will retain a corresponding one of the fasteners.
    Type: Grant
    Filed: December 6, 1988
    Date of Patent: April 9, 1991
    Assignee: Masaki Kawashima
    Inventors: Masaki Kawashima, Kouichi Miyagaki