Patents by Inventor Keiji Saito

Keiji Saito 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: 9441702
    Abstract: A magnetorheological fluid damper using magnetorheological fluid, whose viscosity changes according to an intensity of a magnetizing field, as working fluid includes a cylinder in which magnetorheological fluid is sealed, a piston which is slidably arranged in the cylinder, a first fluid chamber and a second fluid chamber which are partitioned by the piston, a main flow passage which is open on opposite end surfaces of the piston and allows communication between the first and second fluid chambers, an electromagnetic coil which generates a magnetizing field to be applied to the magnetorheological fluid flowing in the main flow passage, a bypass flow passage which is formed at a position less affected by the magnetizing field generated by the electromagnetic coil than the main flow passage, and a bypass branching portion which branches the bypass flow passage from the main flow passage.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: September 13, 2016
    Assignee: KYB CORPORATION
    Inventors: Keiji Saito, Kazuhisa Nakamura
  • Publication number: 20160152108
    Abstract: A shock absorber mounting device joins a shock absorber provided between an axle and a vehicle body to the vehicle body. The shock absorber mounting device includes a magnetic rubber mount having magnetic particles thereinside and being provided between the shock absorber and the vehicle body, an electromagnetic coil configured to apply a magnetic field to the magnetic particles, and a controller configured to supply an excitation current to the electromagnetic coil.
    Type: Application
    Filed: July 24, 2014
    Publication date: June 2, 2016
    Applicant: KYB Corporation
    Inventors: Atsushi OGAWA, Keiji SAITO
  • Patent number: 9347514
    Abstract: A magnetic viscous fluid damper includes: a cylinder; a piston that is slidably interposed within the cylinder; two fluid chambers that are partitioned by the piston; a hollow rod that is coupled to the piston; an electromagnetic coil that is formed with a magnet wire wound around the piston; two lead wires that extend from both ends of the magnet wire; and a coil assembly in which the electromagnetic coil and the two lead wires are embedded in a mold resin. The piston includes a hollow first core coupled to the rod and a second core that sandwiches the coil assembly with the first core. The two lead wires are passed through the inside of the first core and are electrically continuous with an electric wire passed through the inside of the rod.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: May 24, 2016
    Assignee: KYB Corporation
    Inventor: Keiji Saito
  • Patent number: 9340252
    Abstract: A suspension device interposed between a vehicle body and a wheel includes a shock absorber, a suspension spring, a tube member accommodating the shock absorber and the suspension spring, a sealing member closing a one-side opening of the tube member and holding a piston rod of the shock absorber, a damping force adjustment portion, which includes a coil generating a magnetic field in a passage and a wiring penetrating the piston rod and the sealing member and conducting the coil, electrically adjusting resistance caused when an operating fluid, which is a magnetic viscous fluid whose viscosity changes by a magnetic field's action, passes through the passage allowing two chambers defined and formed by a piston in a cylinder to communicate with each other in the shock absorber, and a reaction force adjustment portion, which is mounted on the sealing member, for adjusting a reaction force of the suspension spring.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 17, 2016
    Assignee: KYB Corporation
    Inventors: Takahisa Mochizuki, Naoki Ito, Keiji Saito
  • Publication number: 20160052589
    Abstract: A front fork includes a pair of dampers standing on both sides of a wheel. One of the pair of dampers is a magnetic viscous fluid damper configured to use a magnetic viscous fluid whose viscosity is changed by an action of a magnetic field as a working fluid, while the other of the pair of dampers is a liquid-pressure damper configured to use a liquid such as oil, water, an aqueous solution and the like as the working fluid.
    Type: Application
    Filed: March 4, 2014
    Publication date: February 25, 2016
    Applicant: KAYABA INDUSTRY CO., LTD.
    Inventors: Takahisa MOCHIZUKI, Naoki ITO, Keiji SAITO
  • Publication number: 20160017015
    Abstract: The present invention provides a modified atrial natriuretic peptide that exhibits prolonged duration in blood and maintains cGMP elevating activity. The present invention provides a modified peptide in which at least one sugar substance is linked directly through a glycosidic bond or via a linker structure to at least one hANP peptide, or a pharmaceutically acceptable salt thereof, a medicament comprising the modified peptide or the salt thereof as an active ingredient, etc.
    Type: Application
    Filed: July 22, 2015
    Publication date: January 21, 2016
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Mitsuhiro IWAMOTO, Takahiro Yamaguchi, Yutaka Mori, Keiji Saito, Takeshi Honda, Takahiro Nagayama
  • Publication number: 20160020423
    Abstract: Provided are a resin composition for element encapsulation for organic electronic devices and other things, which have excellent long-term reliability and excellent visibility by capturing not only the moisture on the front surface or lateral surfaces of the resin composition for element encapsulation for organic electronic devices, but also the moisture permeating through the interior of the resin composition for element encapsulation for organic electronic devices. The resin composition includes a polyisobutylene resin (A) containing a polyisobutylene skeleton in a main chain or in a side chain and having a weight average molecular weight (Mw) of 300,000 or more; and a tackifying agent (B) as main components, includes an organometallic compound (C) having hygroscopic properties, and has a water content of 1000 ppm or less.
    Type: Application
    Filed: September 28, 2015
    Publication date: January 21, 2016
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Keiji SAITO, Masami AOYAMA, Kunihiko ISHIGURO, Naoaki MIHARA, Tetsuya MIEDA
  • Publication number: 20160020426
    Abstract: Provided are a resin composition for element encapsulation for organic electronic devices which is transparent, has excellent flexibility, water vapor barrier properties, and adhesive force, and can suppress the generation of dark spots, a resin sheet for element encapsulation for organic electronic devices, an organic electroluminescent element, and an image display device. This adhesive resin composition for element encapsulation for organic electronic devices is used to seal an element for organic electronic devices, and is characterized by containing a diene polymer and a softening agent, in which the content of the softening agent is from 5% by mass to 30% by mass of the total mass.
    Type: Application
    Filed: September 28, 2015
    Publication date: January 21, 2016
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Masami AOYAMA, Tetsuya MIEDA, Keiji SAITO, Kunihiko ISHIGURO, Toshimitsu NAKAMURA, Naoaki MIHARA, Takumi ASANUMA
  • Publication number: 20160017186
    Abstract: A sealant composition being adhesive for used in electronic devices, the sealant composition including an olefin-based polymer and a tackifier, wherein the olefin-based polymer is at least one selected from an ethylene/?-olefin copolymer and an ethylene/?-olefin/non-conjugated diene copolymer, and the content of the tackifier is 10% by mass or more and 70% by mass or less in the resin composition that constitutes the sealant composition.
    Type: Application
    Filed: September 28, 2015
    Publication date: January 21, 2016
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Masami AOYAMA, Tetsuya MIEDA, Keiji SAITO, Kunihiko ISHIGURO, Toshimitsu NAKAMURA, Naoaki MIHARA, Takumi ASANUMA
  • Patent number: 9217486
    Abstract: A magnetorheological fluid shock absorber includes a piston slidably arranged in a cylinder in which magnetorheological fluid is sealed. The piston includes a piston core which is attached to an end part of a piston rod and on the outer periphery of which a coil is provided, a flux ring which surrounds the outer periphery of the piston core and forms a flow passage for the magnetorheological fluid between the piston core and the flux ring, a first plate which is arranged on the outer periphery of the piston rod and specifies the position of one end of the flux ring in an axial direction with respect to the piston core, a second plate which is arranged on the inner periphery of the other end of the flux ring, and a first snap ring which is fitted to the inner periphery of the flux ring and fixes the second plate.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: December 22, 2015
    Assignee: KAYABA INDUSTRY CO., LTD.
    Inventors: Keiji Saito, Kazuhisa Nakamura, Takashi Teraoka
  • Publication number: 20150300443
    Abstract: The entire length of a piston (20) of a magnetorheological fluid shock absorber (100) is reduced. The piston (20) includes a piston core (30) mounted on an end portion of a piston rod (21) and having a coil (33) provided on an outer periphery, a flux ring (35) surrounding the outer periphery of the piston core (30) and forming a flow passage for a magnetorheological fluid, a plate (40) formed annularly, arranged on an outer periphery of the piston rod, and joined to one end of the flux ring (35) through brazing, and a stopper containing a fixing nut (50). The flux ring (35) and the plate (40) are joined by a metal layer.
    Type: Application
    Filed: March 10, 2014
    Publication date: October 22, 2015
    Applicant: KAYABA INDUSTRY CO., LTD.
    Inventor: Keiji Saito
  • Publication number: 20150291824
    Abstract: A transparent resin composition for sealing an organic EL element and other things having a sufficient effect of blocking moisture and excellent flexibility is provided. As essential components, a thermoplastic resin, tackifying resin and organometallic compound represented by the following chemical formula are included, having a light transmittance of 85% or more, and having a relationship of AM/Y<162, A: the acid value except the organometallic compound M: the weight average molecular weight of the organometallic compound Y: the weight ratio of the organometallic compound with respect to 100 parts by weight of resin components wherein the thermoplastic resin contains a hydride of a styrene-based A-B-A type triblock, wherein R1 to R4 represent organic groups including an alkyl group, aryl group, alkoxy group, cycloalkyl group and acyl group, each having a carbon number of 1 or more and 8 or less, M represents a metal atom having 3 valency.
    Type: Application
    Filed: June 25, 2015
    Publication date: October 15, 2015
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Kunihiko ISHIGURO, Tetsuya Mieda, Keiji Saito, Masami Aoyama, Toshimitsu Nakamura, Naoaki Mihara, Takumi Asanuma
  • Publication number: 20150197307
    Abstract: A suspension device interposed between a vehicle body and a wheel includes a shock absorber, a suspension spring, a tube member accommodating the shock absorber and the suspension spring, a sealing member closing a one-side opening of the tube member and holding a piston rod of the shock absorber, a damping force adjustment portion, which includes a coil generating a magnetic field in a passage and a wiring penetrating the piston rod and the sealing member and conducting the coil, electrically adjusting resistance caused when an operating fluid, which is a magnetic viscous fluid whose viscosity changes by a magnetic field's action, passes through the passage allowing two chambers defined and formed by a piston in a cylinder to communicate with each other in the shock absorber, and a reaction force adjustment portion, which is mounted on the sealing member, for adjusting a reaction force of the suspension spring.
    Type: Application
    Filed: March 14, 2014
    Publication date: July 16, 2015
    Applicant: KAYABA INDUSTRY CO., LTD.
    Inventors: Takahisa Mochizuki, Naoki Ito, Keiji Saito
  • Publication number: 20150152939
    Abstract: A suspension device interposed between a vehicle body and a wheel, including a magnetic viscous fluid shock absorber in which a magnetic viscous fluid is sealed, a tube member composed of an outer tube connected to the vehicle body side and an inner tube connected to the wheel side and going into/out of the outer tube and accommodating the magnetic viscous fluid shock absorber, a lubricant liquid stored in the tube member, and a seal member closing a space between the inner tube and the magnetic viscous fluid shock absorber and preventing intrusion of the lubricant liquid to the wheel side.
    Type: Application
    Filed: March 13, 2014
    Publication date: June 4, 2015
    Applicant: KAYABA INDUSTRY CO., LTD.
    Inventors: Takahisa Mochizuki, Naoki Ito, Keiji Saito
  • Publication number: 20150129378
    Abstract: A magnetorheological fluid damper using magnetorheological fluid, whose viscosity changes according to an intensity of a magnetizing field, as working fluid includes a cylinder in which magnetorheological fluid is sealed, a piston which is slidably arranged in the cylinder, a first fluid chamber and a second fluid chamber which are partitioned by the piston, a main flow passage which is open on opposite end surfaces of the piston and allows communication between the first and second fluid chambers, an electromagnetic coil which generates a magnetizing field to be applied to the magnetorheological fluid flowing in the main flow passage, a bypass flow passage which is formed at a position less affected by the magnetizing field generated by the electromagnetic coil than the main flow passage, and a bypass branching portion which branches the bypass flow passage from the main flow passage.
    Type: Application
    Filed: July 23, 2013
    Publication date: May 14, 2015
    Applicant: KAYABA INDUSTRY CO., LTD.
    Inventors: Keiji Saito, Kazuhisa Nakamura
  • Publication number: 20150041263
    Abstract: A magnetic viscous fluid damper includes: a cylinder; a piston that is slidably interposed within the cylinder; two fluid chambers that are partitioned by the piston; a hollow rod that is coupled to the piston; an electromagnetic coil that is formed with a magnet wire wound around the piston; two lead wires that extend from both ends of the magnet wire; and a coil assembly in which the electromagnetic coil and the two lead wires are embedded in a mold resin. The piston includes a hollow first core coupled to the rod and a second core that sandwiches the coil assembly with the first core. The two lead wires are passed through the inside of the first core and are electrically continuous with an electric wire passed through the inside of the rod.
    Type: Application
    Filed: December 3, 2012
    Publication date: February 12, 2015
    Applicant: KAYABA INDUSTRY CO., LTD.
    Inventor: Keiji Saito
  • Publication number: 20150021130
    Abstract: A magnetorheological fluid shock absorber includes a piston slidably arranged in a cylinder in which magnetorheological fluid is sealed. The piston includes a piston core which is attached to an end part of a piston rod and on the outer periphery of which a coil is provided, a flux ring which surrounds the outer periphery of the piston core and forms a flow passage for the magnetorheological fluid between the piston core and the flux ring, a first plate which is arranged on the outer periphery of the piston rod and specifies the position of one end of the flux ring in an axial direction with respect to the piston core, a second plate which is arranged on the inner periphery of the other end of the flux ring, and a first snap ring which is fitted to the inner periphery of the flux ring and fixes the second plate.
    Type: Application
    Filed: February 18, 2013
    Publication date: January 22, 2015
    Applicant: KAYABA INDUSTRY CO., LTD.
    Inventors: Keiji Saito, Kazuhisa Nakamura, Takashi Teraoka
  • Publication number: 20150008081
    Abstract: A magnetorheological fluid shock absorber includes a piston slidably arranged in a cylinder in which magnetorheological fluid whose viscosity changes by the action of a magnetic field is sealed. The piston includes a piston core which is attached to an end part of the piston rod and on the outer periphery of which a coil is provided, a flux ring which surrounds the outer periphery of the piston core and forms a flow passage for the magnetorheological fluid between the piston core and the flux ring, a plate which is annularly formed, arranged on the outer periphery of the piston rod and attached to one end of the flux ring, and a stopper whose axial position is specified with respect to the piston rod and which sandwiches the plate between the piston core and the stopper.
    Type: Application
    Filed: February 18, 2013
    Publication date: January 8, 2015
    Applicant: KAYABA INDUSTRY CO., LTD.
    Inventors: Keiji Saito, Kazuhisa Nakamura, Takashi Teraoka
  • Publication number: 20140253301
    Abstract: According to one embodiment, communications device includes receiver, transmitter, and display. The receiver receives, when first information indicating a setting on a target control device is displayed in a first color in a first display area of a display device, an operation for changing information displayed in the first display area from the first information to second information. The transmitter transmits to the target control device, after a first time has elapsed from when the receiver receives the operation, an instruction for changing the setting according to the second information. The display displays, when the receiver receives the operation for changing the information displayed in the first display area and before the transmitter transmits the instruction, the second information in a second color on the first display area, and displays, upon transmission of the instruction, the second information in a third color in the first display area.
    Type: Application
    Filed: April 1, 2014
    Publication date: September 11, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Noriyuki HIRAYAMA, Satoshi ODAKURA, Keiji SAITO, Mayuko YOSHIDA
  • Publication number: 20140116827
    Abstract: A magnetorheological fluid shock absorber that uses a magnetorheological fluid having a viscosity includes: a tubular cylinder formed from a non-magnetic material and having the magnetorheological fluid sealed into an inner periphery thereof; a piston formed from a non-magnetic material and disposed in the cylinder to be free to slide at an interval, through which the magnetorheological fluid can pass, relative to the inner periphery of the cylinder; a piston rod to which the piston is connected; and a magnet portion attached to the cylinder in order to apply a magnetic field to an interior of the cylinder. The magnet portion includes a permanent magnet having an inner peripheral shape that aligns with an outer periphery of the cylinder; and a ring member formed from a magnetic material and disposed on an outer peripheral side of the permanent magnet.
    Type: Application
    Filed: May 29, 2012
    Publication date: May 1, 2014
    Applicant: KAYABA INDUSTRY CO., LTD.
    Inventors: Keiji Saito, Miho Shimada