Patents by Inventor Kenichi Takeda

Kenichi Takeda 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: 20210262572
    Abstract: A seal structure includes a mounting groove disposed in a first member and a packing unit housed in the mounting groove. The packing unit includes an inner circumferential mounting section and an outer circumferential sliding section. Both side surfaces of the packing unit are conical surfaces which are inclined such that their diameters gradually increase in a direction from the mounting section toward the sliding section and which are inclined in mutually opposite directions. The thickness of the packing unit increases in a gradual manner in the direction from the mounting section toward the sliding section, the thickness in the mounting section is the smallest, and the thickness in the sliding section is the largest.
    Type: Application
    Filed: June 6, 2019
    Publication date: August 26, 2021
    Applicant: SMC CORPORATION
    Inventors: Masayuki KUDO, Kenichi TAKEDA, Masahiko KAWAKAMI, Ken TAMURA, Tsukasa ODAKA
  • Patent number: 10969377
    Abstract: An apparatus for a thin film device is used for analyzing a biopolymer. The apparatus has a thin film, a first solution in contact with a first surface of the thin film, a second solution in contact with a second surface of the thin film, a flow path or a conductive wire for adjusting the potential difference between the first solution and the second solution to a small value, a control unit for controlling the flow path or the conductive wire, an inlet from which a biopolymer is introduced to at least one of the first and second solution, a first electrode provided in the first solution, a second electrode provided in the second solution and an ammeter for measuring the current which flows between the first and second electrode when the biopolymer passes through a hole in the thin film between the first and second solution.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: April 6, 2021
    Assignee: HITACHI, LTD.
    Inventors: Kazuma Matsui, Itaru Yanagi, Kenichi Takeda
  • Publication number: 20210003152
    Abstract: A packing has an outer circumferential surface and includes a pair of sealing parts located at opposite ends of the packing in a direction along an axis. A piston has a sliding face having a first recess groove. When in the first recess groove, the packing has an outside diameter smaller than the diameter of a slide-receiving face of a cylinder hole. The piston divides the cylinder hole into a pair of chambers. While a compressed fluid is supplied to either one of the chambers, a side edge of the packing adjacent to the chamber at a high pressure is stretched in a radial direction by elastic deformation due to the pressure of the compressed fluid, thus causing a sealing part adjacent to the chamber at the high pressure to reduce a gap formed with the slide-receiving face of the cylinder hole or come into contact with the slide-receiving face.
    Type: Application
    Filed: February 20, 2019
    Publication date: January 7, 2021
    Applicant: SMC CORPORATION
    Inventors: Masayuki KUDO, Kenichi TAKEDA, Masahiko KAWAKAMI, Ken TAMURA, Tsukasa ODAKA
  • Publication number: 20200338583
    Abstract: A method for cleaning a paint spray gun, which comprises a rotating atomization head to apply a coating material while rotating and an outer circumferential tube to cover the exterior of the rotating atomization head, has a cleaning solution application step for applying a cleaning solution to the external face of the outer circumferential tube, and a rotating atomization head rotation step for generating a rotational flow between the rotating atomization head and the outer circumferential tube by rotating the rotating atomization head. The cleaning solution flowing down the external face of the outer circumferential tube applied in the cleaning solution application step penetrates between the rotating atomization head 5 and the outer circumferential tube by way of the rotational flow. Such method uses a small amount of cleaning solution for cleaning external and internal faces of the outer circumferential tube and the external face of a rotating atomization head.
    Type: Application
    Filed: February 7, 2019
    Publication date: October 29, 2020
    Inventor: Kenichi TAKEDA
  • Publication number: 20200332434
    Abstract: A pore forming method in which a pore is formed in such a way that a first voltage is applied between electrodes that are disposed with a film in an electrolytic solution therebetween; a second voltage, which is lower than the first voltage, is applied between the electrodes; a current that flows between the electrodes owing to the application of the second voltage is measured; it is judged whether a value of a current is equal to or larger than a predefined threshold; and if the value of the current is smaller than the threshold, the above sequence is repeated until a pore is formed. In this case, the second voltage is a voltage that makes the value (IPF) of the current flowing through the film practically 0. With the use of the above method, a nanopore is formed in the film simply, easily, and accurately.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 22, 2020
    Inventors: Itaru YANAGI, Rena AKAHORI, Kenichi TAKEDA
  • Patent number: 10761057
    Abstract: A method for producing a membrane device includes: forming an insulating film as a first film on a Si substrate; forming a Si film as a second film on the entire surface or a part of the first film; forming an insulating film as a third film on the second film; forming an aperture so as to pass through a part of the third film positioned on the second film and not to pass through the second film; etching a part of the substrate on one side of the first film with a solution that does not etch the first film; and etching a part or all of the second film on the other side of the first film with a gas or a solution that does not etch the first film and has an etching rate for the third film lower than an etching rate for the second film.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: September 1, 2020
    Assignee: HITACHI, LTD.
    Inventors: Itaru Yanagi, Kenichi Takeda
  • Patent number: 10753922
    Abstract: A biomolecule measuring device includes a first liquid tank and a second liquid tank which are filled with an electrolytic solution, a nanopore device that supports a thin film having a nanopore and is provided between the first liquid tank and the second liquid tank so as to communicate between the first liquid, tank and the second liquid tank through the nanopores, and an immobilizing member that is disposed in the first liquid tank, has a size larger than that of the thin film, and to which the biomolecules are immobilized, in which at least, one of the nanopore device and the immobilizing member has a groove structure.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: August 25, 2020
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Rena Akahori, Kenichi Takeda, Itaru Yanagi
  • Patent number: 10724147
    Abstract: A pore forming method in which a pore is formed in such a way that a first voltage is applied between electrodes that are disposed with a film in an electrolytic solution therebetween; a second voltage, which is lower than the first voltage, is applied between the electrodes; a current that flows between the electrodes owing to the application of the second voltage is measured; it is judged whether a value of a current is equal to or larger than a predefined threshold; and if the value of the current is smaller than the threshold, the above sequence is repeated until a pore is formed. In this case, the second voltage is a voltage that makes the value (IPF) of the current flowing through the film practically 0. With the use of the above method, a nanopore is formed in the film simply, easily, and accurately.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: July 28, 2020
    Assignee: HITACHI, LTD.
    Inventors: Itaru Yanagi, Rena Akahori, Kenichi Takeda
  • Patent number: 10578134
    Abstract: A fluid pressure cylinder is equipped with a piston rod connected coaxially with a piston and which slides linearly in the interior of a body. A cutout recess having a predetermined length along an axial direction of the piston rod is formed on a side surface of the piston rod. A planar bearing is provided, which projects toward the cutout recess from an inner surface of the body, and includes a distal end surface that abuts on the same plane with a bottom surface of the cutout recess.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: March 3, 2020
    Assignee: SMC CORPORATION
    Inventor: Kenichi Takeda
  • Patent number: 10543561
    Abstract: A welding gun includes a driving-force transmission mechanism which converts linear displacement of an output unit of a driving unit into rotational displacement of a clamping arm. The driving-force transmission mechanism includes: an inclined part which is integrally displaced with the linear displacement of the output unit, and which is inclined with respect to the displacement direction of the output unit; and a part to be pressed which is pressed by the inclined part. The clamping arm rotates in accordance with movement of the part to be pressed which is pressed by the displaced inclined part, and generates clamping force.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: January 28, 2020
    Assignee: SMC CORPORATION
    Inventors: Chiaki Fukui, Kenichi Takeda
  • Publication number: 20190369080
    Abstract: A first modulation voltage is applied to a thin film. An amount of a change in the phase of a current carried through the thin film with respect to the phase of the first modulation voltage is compared with a threshold. Upon detecting that the amount of the change in the phase exceeds the threshold is detected, the application of the first modulation voltage is stopped. Thus, a nanopore is formed on the thin film at high speed.
    Type: Application
    Filed: December 9, 2016
    Publication date: December 5, 2019
    Inventors: Yoshimitsu YANAGAWA, Kenichi TAKEDA, Itaru YANAGI, Yusuke GOTO, Kazuma MATSUI
  • Patent number: 10479409
    Abstract: A vehicle-body front structure includes a pair of left and right side frames, a cross member, a pair of sub-frames, projections, and buckling structures. The pair of left and right side frames extend in a front-rear direction. The cross member is coupled to a lower side of the pair of left and right side frames and extends in a left-right direction. The pair of sub-frames are coupled to a lower side of the cross member and extend in the front-rear direction. Each projection is disposed on a front end side of the corresponding sub-frame and projects from the corresponding side frame outward in the left-right direction in a plan view. Each buckling structure is formed in the corresponding sub-frame and causes the sub-frame to buckle such that the corresponding projection comes into contact with the cross member when an impact load is applied to the projection from a front side.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: November 19, 2019
    Assignee: SUBARU CORPORATION
    Inventors: Seiji Fujiwara, Yosuke Hachisu, Kenichi Takeda
  • Publication number: 20190293625
    Abstract: A method includes a step of introducing a solution between a substrate with a membrane in which the membrane is provided so as to close an opening and a substrate provided with an independent electrode in which the independent electrode is provided, a step of pressure bonding the substrate with the membrane and the substrate with the independent electrode through a partition wall, and a step of forming a sealed liquid tank surrounded by at least the membrane and the partition wall by the pressure bonding, and arraying of a solid-state type nanopore sequencer is simply performed.
    Type: Application
    Filed: October 12, 2017
    Publication date: September 26, 2019
    Inventors: Mayu AOKI, Itaru YANAGI, Kunio HARADA, Kenichi TAKEDA
  • Patent number: 10424721
    Abstract: A lead-free piezoelectric element that stably operates in a wide operating temperature range contains a lead-free piezoelectric material. The piezoelectric element includes a first electrode, a second electrode, and a piezoelectric material that includes a perovskite-type metal oxide represented by (Ba1-xCax)a(Ti1-yZry)O3 (1.00?a?1.01, 0.02?x?0.30, 0.020?y?0.095, and y?x) as a main component and manganese incorporated in the perovskite-type metal oxide. The manganese content relative to 100 parts by weight of the perovskite-type metal oxide is 0.02 parts by weight or more and 0.40 parts by weight or less on a metal basis.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: September 24, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jumpei Hayashi, Kenichi Takeda, Shinya Koyama, Kenichi Akashi, Tatsuo Furuta
  • Patent number: 10416147
    Abstract: A method of manufacturing a membrane device comprises: a first step of forming a pillar structure on a part of a Si substrate by etching; a second step of forming a first insulation layer on the Si substrate so as to expose a Si surface of an upper part of the pillar structure; a third step of forming a second insulation layer on the pillar structure and the first insulation layer; and a fourth step of etching the Si substrate from an opposite side of the second insulation layer and etching the pillar structure with the first insulation layer being a mask, to thereby form a membrane, which is a region free of the pillar structure in the second insulation layer.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: September 17, 2019
    Assignee: HITACHI, LTD.
    Inventors: Itaru Yanagi, Kenichi Takeda
  • Publication number: 20190249243
    Abstract: To introduce a biomolecule into a nanopore without the need to check the position of the nanopore in a thin film. In addition, displacement stability is ensured and stable acquisition of blocking signals is realized. An immobilization member 107 having a larger size than a thin film 113 with a nanopore 112 is used, and biomolecules are immobilized on the biomolecule immobilization member 107 at a density that allows at least one biomolecule 108 to enter an electric field region around the nanopore when the biomolecule immobilization member 107 has moved close to a nanopore device 101.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Inventors: Rena AKAHORI, Itaru YANAGI, Kenichi TAKEDA
  • Patent number: 10338057
    Abstract: The membrane of a conventional solid-state nanopore device, which is believed to be promising for understanding the structural characteristics of DNA and determining a nucleotide sequence, has been thick, and the accuracy in determining a nucleotide sequence in the DNA chain has been insufficient. A method characterized by forming a membrane by forming a first film on a first substrate having a surface of Si, then forming a hole in the first film in such a manner that the surface of the first substrate is exposed, then forming a second film on the first film and on the surface of the first substrate and then etching the first substrate with a solution which does not remove the second film.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: July 2, 2019
    Assignee: HITACHI, LTD.
    Inventors: Itaru Yanagi, Kenichi Takeda
  • Patent number: 10294525
    Abstract: To introduce a biomolecule into a nanopore without the need to check the position of the nanopore in a thin film. In addition, displacement stability is ensured and stable acquisition of blocking signals is realized. An immobilization member 107 having a larger size than a thin film 113 with a nanopore 112 is used, and biomolecules are immobilized on the biomolecule immobilization member 107 at a density that allows at least one biomolecule 108 to enter an electric field region around the nanopore when the biomolecule immobilization member 107 has moved close to a nanopore device 101.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: May 21, 2019
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Rena Akahori, Itaru Yanagi, Kenichi Takeda
  • Patent number: 10270629
    Abstract: A wireless relay device for relaying packets via a wireless network includes an aggregator and a transfer controller. The aggregator is configured to aggregate a plurality of sets of data respectively included in a plurality of first packets transmitted from a plurality of wireless devices in the wireless network and under the wireless relay device to generate a second packet. The plurality of first packets is addressed to the wireless relay device. The transfer controller is configured to transfer the second packet to a transfer destination.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: April 23, 2019
    Assignee: Yokogawa Electric Corporation
    Inventors: Haruka Yamada, Naoyuki Fujimoto, Minoru Midorikawa, Masato Yamaji, Kenichi Takeda
  • Publication number: 20190115853
    Abstract: Provided is a method of manufacturing an oscillator, including: arranging an electrode on a piezoelectric ceramics free from being subjected to polarization treatment, to thereby provide a piezoelectric element; bonding the piezoelectric element and a diaphragm to each other at a temperature T1; bonding the piezoelectric element and a power supply member to each other at a temperature T2; and subjecting the piezoelectric ceramics to polarization treatment at a temperature T3, in which the temperature T1, the temperature T2, and the temperature T3 satisfy a relationship T1>T3 and a relationship T2>T3.
    Type: Application
    Filed: March 21, 2017
    Publication date: April 18, 2019
    Inventors: Jumpei Hayashi, Kenichi Takeda, Shinya Koyama, Takayuki Watanabe, Yasushi Shimizu, Tatsuo Furuta, Miki Ueda, Akira Uebayashi, Hidenori Tanaka, Makoto Kubota