Patents by Inventor Tomohiro Nakata

Tomohiro Nakata 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: 10923150
    Abstract: The purpose of the present invention is to provide a magnetic recording medium having a stacked structure of a seed layer including (Mg1-xTix)O and a magnetic recording layer including an L10 ordered alloy, and having improved properties. The method for producing a magnetic recording layer according to the present invention includes the steps of: (1) preparing a substrate; (2) forming a seed layer including (Mg1-xTix)O onto the substrate; (3) plasma etching the seed layer in an atmosphere including inert gas; and (4) forming a magnetic recording layer including an ordered alloy onto the seed layer which has been subjected to the step (3).
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: February 16, 2021
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Tomohiro Moriya, Hitoshi Nakata, Takehito Shimatsu
  • Publication number: 20200393051
    Abstract: Provided is a valve device which can precisely adjust the flow rate while ensuring the flow rate of the fluid. A valve device includes a main actuator which receives a pressure of a supplied drive fluid and moves an operating member to an open position or closed position; an adjusting actuator arranged to receive at least a part of a force generated by the main actuator and for adjusting the position of the operating member positioned at the open position; and a pressure regulator provided in a feed path of the drive fluid to the main actuator and for regulating the pressure of the supplied drive fluid to suppress fluctuation of the pressure of the drive fluid supplied to the main actuator.
    Type: Application
    Filed: March 9, 2018
    Publication date: December 17, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Kenta KONDO, Toshihide YOSHIDA, Masahiko TAKIMOTO, Tsutomu SHINOHARA, Tomohiro NAKATA, Takeru MIURA, Masahiko NAKAZAWA
  • Publication number: 20200386342
    Abstract: A valve device allows simple flow rate control when the bulb is opened. Valve device includes: a valve body having a first flow path and a second flow path formed therein; a valve body for closing an opening of the first flow path to shut off a gateway between the first flow path and the second flow path and for opening the first flow path to communicate the first flow path and the second flow path; an operating member for moving between a closed position for closing the opening in the valve body and an open position for opening the opening; and an adjusting actuator for defining an open position of the operating member and having an electrically driven material made of a compound that deforms in response to a change in an electric field, and for changing the defined open position by deformation of the electrically driven material.
    Type: Application
    Filed: March 9, 2018
    Publication date: December 10, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Toshihide YOSHIDA, Tsutomu SHINOHARA, Tomohiro NAKATA, Ryutaro TANNO, Kouji NISHINO, Katsuyuki SUGITA, Masahiko TAKIMOTO
  • Publication number: 20200370664
    Abstract: Provided is a valve device in which influence of a physical impact on a valve element is further reduced. Valve device includes a valve seat disposed around an opening connected to a flow path formed in a valve body, a diaphragm for opening and closing flow path by moving between a contact position and a non-contact position with respect to the valve seat, a presser adapter that contacts a peripheral portion of the diaphragm, a casing that incorporates an actuator for actuating the diaphragm and is fixed on the valve body by being screwed into a screw hole formed in the valve body, and an adapter fixing ring that is screwed into the screw hole and thereby fixed in the valve body while pressing the presser adapter and the diaphragm.
    Type: Application
    Filed: February 19, 2019
    Publication date: November 26, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Kazunari WATANABE, Kohei SHIGYOU, Yohei SAWADA, Tomohiro NAKATA, Tsutomu SHINOHARA
  • Patent number: 10847181
    Abstract: The purpose of the present invention is to provide a perpendicular magnetic recording medium which uses an Ru seed layer having a (002)-oriented hcp structure, and has a magnetic recording layer including a (001)-oriented L10 ordered alloy suitable to perpendicular magnetic recording. The magnetic recording medium of the present invention includes a substrate, a first seed layer containing Ru, a second seed layer containing ZnO, a third seed layer containing MgO, and a magnetic recording layer containing an ordered alloy, in this order, the first seed layer having the (002)-oriented hexagonal closest packed structure.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: November 24, 2020
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Shinji Uchida, Hitoshi Nakata, Tomohiro Moriya, Akira Furuta, Takehito Shimatsu
  • Publication number: 20200354835
    Abstract: A valve device with a built-in orifice is manufacturable with low-cost. The valve body defines an accommodation recess which opens at the surface of the valve body and contains a valve element therein, a primary flow path and a secondary flow path connected to the accommodation recess, the valve element having a sealing portion for blocking direct communication between the primary flow path and the secondary flow path through the accommodation recess, and a through flow passage for making the primary flow path and the secondary flow path communicate through the valve element, wherein an orifice is formed in the through flow passage.
    Type: Application
    Filed: November 12, 2018
    Publication date: November 12, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Kazunari WATANABE, Kohei SHIGYOU, Kenji AIKAWA, Tomohiro NAKATA, Takahiro MATSUDA, Tsutomu SHINOHARA
  • Publication number: 20200340591
    Abstract: A flow path assembly incorporating functional components, such as orifices and filters, is provided in which gaps between the functional components and the flow path components defining the flow path are sealed for an extended period of time. An annular elastic member interposed between the flow path members is provided outside the opposing surfaces of the flow path members, the flow path member has a caulking portion, the caulking portion integrates the flow path members and the plate-like member, exerts a force on the flow path member such that one of the opposing surfaces faces the other of the opposing surfaces, seals the gaps between the orifice plate and the opposing surfaces, and the elastic member is crushed between the flow path members to seal the gap between the flow path members.
    Type: Application
    Filed: October 24, 2018
    Publication date: October 29, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Kazunari WATANABE, Kohei SHIGYOU, Kenji AIKAWA, Tomohiro NAKATA, Takahiro MATSUDA, Tsutomu SHINOHARA
  • Publication number: 20200325887
    Abstract: A valve device includes valve elements each having a valve seat, a valve seat support, and a diaphragm provided so as to be able to abut on and separate from the seat surface of the valve seat, the diaphragm making the flow passage of the valve seat and the corresponding secondary flow path communicate through the gap between the diaphragm and the valve seat, and the valve seat support has seal surfaces that cooperate with a part of the inner wall surface of the corresponding accommodation recess to shut off the communication between the corresponding primary flow path and the secondary flow path, and a detour passage that connects the primary flow path and the flow passage of the valve seat, and the valve body defines a communication passage that makes the secondary flow paths communicates with each other.
    Type: Application
    Filed: October 22, 2018
    Publication date: October 15, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Kazunari WATANABE, Kohei SHIGYOU, Kenji AIKAWA, Tomohiro NAKATA, Takahiro MATSUDA, Tsutomu SHINOHARA
  • Publication number: 20200292093
    Abstract: A valve device is made more compact and has improved yield strength against a bending moment. The problem is solved by a valve device including a valve body having a block shape, a casing having a tubular shape, incorporating a drive mechanism that drives a valve element that opens and closes the flow path, connected to the valve body, and extending upward from an upper surface of the valve body, and a protective member that comes into contact with the casing having a tubular shape and the valve body, and is for suppressing a stress concentration that occurs between a casing member positioned on a base portion of a casing and the valve body when a bending moment acts as an external force on the casing.
    Type: Application
    Filed: May 25, 2018
    Publication date: September 17, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Kazunari WATANABE, Tomohiro NAKATA, Tsutomu SHINOHARA
  • Publication number: 20200278033
    Abstract: A valve device is capable of precisely adjusting a flow rate variation due to aging, aging, etc. without using an external sensor. An adjusting actuator includes a piezoelectric element for adjusting the position of the operating member positioned at the open position, and the drive circuit of the adjusting actuator includes a detecting unit for detecting an electric signal related to the amount of strain generated in the piezoelectric element, and a control unit for controlling the adjusting actuator so that the opening degree of the flow path by the valve element becomes the target opening degree based on the electric signal related to the amount of strain of the piezoelectric element.
    Type: Application
    Filed: September 11, 2018
    Publication date: September 3, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Kenta KONDO, Toshihide YOSHIDA, Kenji AIKAWA, Hidenobu SATO, Tomohiro NAKATA, Tsutomu SHINOHARA, Masahiko TAKIMOTO
  • Publication number: 20200278234
    Abstract: A valve device is capable of precisely adjusting a flow rate variation with time, aging, or the like without using an external sensor or using as few external sensors as possible. The apparatus includes an adjusting actuator for adjusting the position of the operating member positioned at the open position, a communication unit for receiving adjustment information relating to the adjustment of the opening degree of the flow path by the valve element from the outside of the apparatus, and a control unit for adjusting the position of the operating member by driving the adjusting actuator based on the adjustment information.
    Type: Application
    Filed: September 11, 2018
    Publication date: September 3, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Kenta KONDO, Toshihide YOSHIDA, Hidenobu SATO, Tomohiro NAKATA, Tsutomu SHINOHARA, Masahiko TAKIMOTO
  • Publication number: 20200278046
    Abstract: To provide a manual valve device suitable for a miniaturized and integrated fluid control system, the manual valve device includes a casing having a tubular shape and incorporating a drive mechanism, an operation member for activating the drive mechanism, and a cam part that converts a force acting on the operation member into a driving force of the drive mechanism. The manual valve device further includes a protective cover provided on an upper end side of the casing and covering at least a portion of the operation member. The operation member includes an attaching part that allows removable attaching of an auxiliary tool for causing a force required for activation of the drive mechanism to act on the operation member. The protective cover is formed so as to allow access to the attaching part of the operation member by the auxiliary tool.
    Type: Application
    Filed: September 4, 2018
    Publication date: September 3, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Kazunari WATANABE, Tomohiro NAKATA, Toshiyuki INADA, Tsutomu SHINOHARA
  • Publication number: 20200278049
    Abstract: A valve device can be compact, low cost and has a bleed function. A valve body defines an accommodation recess which opens at a surface of the valve body and contains a valve element therein, a primary flow path and a secondary flow path connected to the accommodation recess, the valve element having a sealing portion for blocking direct communication between the primary flow path and the secondary flow path through the accommodation recess, a detour passage for making the primary flow path and the secondary flow path communicate through the valve element, and a bleed hole for making the detour passage and the secondary flow path communicate through the accommodation recess.
    Type: Application
    Filed: November 13, 2018
    Publication date: September 3, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Kazunari WATANABE, Kohei SHIGYOU, Kenji AIKAWA, Tomohiro NAKATA, Takahiro MATSUDA, Tsutomu SHINOHARA
  • Publication number: 20200267864
    Abstract: A resin card medium which has a substrate having electronic components mounted thereon and has sophisticated flatness and smoothness realized without providing any layer having holes for absorbing thicknesses of the electronic components; and a method for manufacturing a resin card medium. A resin card medium laminated body before pressing is prepared by laminating, on a first plastic finishing sheet, a substrate having one electronic component or two or more electronic components installed on one side of the substrate, with the one side, on which the electronic component or electronic components are installed, facing upward, and laminating, on the substrate, mixed paper constituted of plastic fibers and plant fibers, and by subjecting the resin card medium laminated body to hot pressing at a temperature which is a softening point or more of the plastic fibers and less than a melting point of the plastic fibers.
    Type: Application
    Filed: September 20, 2018
    Publication date: August 20, 2020
    Applicants: SHOEI PRINTING CO., LTD., TOMOEGAWA CO., LTD.
    Inventors: Tomohiro NAKATA, Hideki MORIUCHI
  • Patent number: 10737345
    Abstract: A pipe joint includes a first member, a second member, a weld experiencing transverse contraction and joining a first outer cylindrical end portion and a second outer cylindrical end portion butted with their end faces meeting over the entire circumference, an annular sealed area produced by the transverse contraction of the weld causing a first pressing portion and a second pressing portion to be displaced toward each other, a heat transmission suppressing member arranged in a space delimited by a weld forming area and a to-be-sealed area, inside the first and second members assembled, to suppress transmission of heat applied in welding from the weld forming area to a to-be-sealed area, and a first stop ring fitted in an outer cylindrical surface of the heat transmission suppressing member to hold the heat transmission suppressing member against an inner surface of the first or the second member.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: August 11, 2020
    Assignee: FUJIKIN INCORPORATED
    Inventors: Kazunari Watanabe, Toshiyuki Inada, Tsutomu Shinohara, Tomohiro Nakata
  • Patent number: 10741207
    Abstract: The present invention aims at providing a magnetic recording medium that can lower a Curie temperature (Tc) of a magnetic material, without increasing an in-plane coercive force and lowering magnetic properties. The magnetic recording medium is a magnetic recording medium comprising a substrate and a magnetic recording layer, the magnetic recording layer comprising an FePtRh ordered alloy, wherein a Rh content in the FePtRh ordered alloy is 10 at % or less.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: August 11, 2020
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Tomohiro Moriya, Hitoshi Nakata, Takehito Shimatsu
  • Publication number: 20200248833
    Abstract: An actuator includes: a casing; a reciprocating member provided in the casing to be reciprocatable; a drive part provided in the casing to drive the reciprocating member; a booster mechanism which is configured to amplify a drive force applied by the drive part to the reciprocating member; and a moving member which is configured to move on receiving the force amplified by the booster mechanism. The booster mechanism includes a plurality of levers which are arranged in a circumferential direction of the moving member. Each of the levers has an effort portion which is configured to receive the force from the reciprocating member, a fulcrum portion which is configured to come into contact with the casing to serve as a center of a revolution of the lever, and a load portion which is configured to transmit the force to the moving member.
    Type: Application
    Filed: March 27, 2020
    Publication date: August 6, 2020
    Inventors: Masahiko NAKAZAWA, Nobuo NAKAMURA, Tomohiro NAKATA, Tsutomu SHINOHARA
  • Publication number: 20200224776
    Abstract: A valve device includes a valve body that defines flow paths, a diaphragm provided so as to be capable of opening and closing the flow paths, an operation member provided so as to be capable of moving in opening and closing directions that open and close the flow paths by operating the diaphragm, a main actuator that applies a driving force corresponding to an operating pressure applied in the opening direction or the closing direction of the opening and closing directions with respect to the operation member, a switching mechanism capable of selectively switching a position of the operation member that regulates a degree of opening of the flow paths between a first open position and a second open position in accordance with a magnitude of the operating pressure, and regulating mechanisms capable of independently regulating the first open position and the second open position.
    Type: Application
    Filed: November 2, 2017
    Publication date: July 16, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Toshihide YOSHIDA, Tomohiro NAKATA, Tsutomu SHINOHARA, Toshiyuki INADA, Takashi FUNAKOSHI, Hidenobu SATO, Tomoko YUHARA
  • Publication number: 20200183368
    Abstract: An information processor includes a controller that is configured to: produce, on the basis of use information of a device manufactured under a manufacturing condition based on spec information, appropriate spec information representing an appropriate spec which is appropriate to the device; and determine a manufacturing condition for the device on the basis of the appropriate spec information.
    Type: Application
    Filed: January 31, 2020
    Publication date: June 11, 2020
    Inventors: Tatsuhiko SATO, Tomohiro NAKATA, Hidenobu SATO
  • Publication number: 20200149653
    Abstract: An actuator includes a casing having a first annular groove formed in an inner peripheral portion thereof; a piston having a second annular groove formed in an outer peripheral portion thereof, provided in the casing to form a pressure chamber together with the casing, and driven by a drive fluid from an outside of the actuator; and an annular seal member having a first fitting portion to be fitted into the first annular groove and a second fitting portion to be fitted into the second annular groove to seal the pressure chamber.
    Type: Application
    Filed: January 3, 2020
    Publication date: May 14, 2020
    Inventors: Takeru MIURA, Tsutomu SHINOHARA, Tomohiro NAKATA, Toshiyuki INADA, Kazunari WATANABE, Kenta KONDO, Hidenobu SATO, Tomoko YUHARA