Patents by Inventor Shigeru Watanabe

Shigeru Watanabe 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: 11973246
    Abstract: A method of shaping a gasket on a separator without causing destruction and damage. A fuel battery separator gasket is shaped via a shaping of a sticking agent and a transfer of the sticking agent. During the shaping, the sticking agent to be the gasket is shaped on a flexible substrate having flexibility. During the transfer, the sticking agent shaped on the flexible substrate is transferred to one of a pair of separators facing each other with an electrolyte membrane provided in a fuel battery cell being interposed therebetween and each having a bead forming a flow path of fluid between the bead and the electrolyte membrane in close contact with the electrolyte membrane to shape the gasket.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: April 30, 2024
    Assignee: NOK CORPORATION
    Inventors: Taisuke Matsuda, Shigeru Watanabe
  • Patent number: 11965567
    Abstract: This disc brake includes a cylinder bore into which a piston is fitted, a seal groove provided in the cylinder bore as an annular groove, and a seal member which has a rectangular cross section shape and which is fitted into the seal groove and seal a space between the piston and the cylinder bore. The seal groove includes a bottom surface portion, a side surface portion, and a chamfered portion. The chamfered portion is formed to expand an opening of the seal groove in the axial direction of the cylinder bore and has two types of curvature radii (r1 and r2).
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: April 23, 2024
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Shoichi Noguchi, Shigeru Hayashi, Satoshi Nakamura, Toshiko Watanabe
  • Publication number: 20240113691
    Abstract: A method for manufacturing a vibrator includes a preparation step of preparing a quartz crystal substrate having a first surface and a second surface which are in a front and back relationship, a first protective film formation step of forming a first protective film in a second groove formation region when a region of the quartz crystal substrate where the vibrator is formed is referred to as an element formation region, a region where the first groove is formed is referred to as a first groove formation region, and a region where the second groove is formed is referred to as the second groove formation region, a second protective film formation step of forming, in the first groove formation region, a second protective film having a lower etching rate than the first protective film, a third protective film formation step of forming a third protective film in a region of the element formation region other than the first groove formation region and the second groove formation region, and a first dry etching st
    Type: Application
    Filed: September 27, 2023
    Publication date: April 4, 2024
    Inventors: Tsukasa Watanabe, Keiichi Yamaguchi, Shigeru Shiraishi, Ryuta Nishizawa
  • Publication number: 20240113692
    Abstract: A method for manufacturing a vibrator includes a preparation step of preparing a quartz crystal substrate having a first surface and a second surface which are in a front and back relationship, a first protective film formation step of forming a first protective film in a region of an element formation region other than a first groove formation region and a second groove formation region when a region of the quartz crystal substrate where the vibrator is formed is referred to as the element formation region, a region where the first groove is formed is referred to as the first groove formation region, and a region where the second groove is formed is referred to as the second groove formation region, a first dry etching step of dry etching the quartz crystal substrate from the first surface through the first protective film, a second protective film formation step of forming a second protective film in the first groove formation region, and a second dry etching step of dry etching the quartz crystal substrate
    Type: Application
    Filed: September 27, 2023
    Publication date: April 4, 2024
    Inventors: Tsukasa Watanabe, Keiichi Yamaguchi, Shigeru Shiraishi, Ryuta Nishizawa
  • Publication number: 20240113690
    Abstract: A method for manufacturing a vibrator includes a preparation step of preparing a quartz crystal substrate having a first surface and a second surface which are in a front and back relationship, a first film formation step of forming a first stacked body by sequentially stacking a first underlying film, a second underlying film, and a first protective film at the first surface, a first patterning step of patterning the first stacked body in a manner in which the first underlying film, the second underlying film, and the first protective film remain in a region of an element formation region other than a first groove formation region and a second groove formation region, the first underlying film and the second underlying film remain in the first groove formation region, and the first underlying film remains in the second groove formation region, and a first dry etching step of dry etching the quartz crystal substrate from the first surface through the first stacked body.
    Type: Application
    Filed: September 27, 2023
    Publication date: April 4, 2024
    Inventors: Tsukasa Watanabe, Keiichi Yamaguchi, Shigeru Shiraishi, Ryuta Nishizawa
  • Publication number: 20240104065
    Abstract: Pieces of information on multiple file management systems are managed by one contract in a distributed ledger. An administrator terminal includes: a file management system generation unit that issues a contract generation transaction for generating, in blockchain data, a contract in which a network identifier that identifies a file management system is associated with an identifier of a participant terminal in a blockchain system, and notifying the participant terminal of the network identifier and an identifier of the contract; and a file management control unit that issues a registration transaction for registering, in the contract, connection information of the administrator terminal in the file management system, acquires connection information of the participant terminal in the file management system from the contract, and establishes a P2P connection with the participant terminal based on the acquired connection information.
    Type: Application
    Filed: October 23, 2023
    Publication date: March 28, 2024
    Inventors: Shigenori OHASHI, Hiroki WATANABE, Tatsuro ISHIDA, Shigeru FUJIMURA, Atsushi NAKADAIRA
  • Publication number: 20240053346
    Abstract: The present invention relates to providing a novel method for easily detecting tumor cells in a tissue derived from an organism. The present invention includes a fluorescent dye for detecting tumor cells in a tissue, including a compound that exhibits solvatochromism. The present invention also includes a method for detecting tumor cells or specifying a tumor removal area, including applying the fluorescent dye to staining of a tissue derived from an organism and to an organism.
    Type: Application
    Filed: September 6, 2021
    Publication date: February 15, 2024
    Inventors: Masamoto MURAKAMI, Ryosuke KAWAKAMI, Teruko TSUDA, Koji SAYAMA, Takeshi IMAMURA, Yosuke NIKO, Kazuki INOUE, Taku NAKAYAMA, Shingo HADANO, Shigeru WATANABE
  • Patent number: 11888103
    Abstract: A separator-integrated gasket is provided for making an electrolyte membrane unlikely to be deformed when a stack is assembled. The separator-integrated gasket for a fuel battery includes a lip-shaped gasket, first and second separator components, and a flat-shaped gasket. The first and second separator components are made of press-workable metal plates, and include first and second three-dimensional shape portions, respectively. The first separator component includes a surface that is on a side opposite to a protruding direction of the first three-dimensional shape portion and on which a gasket attachment groove holding the lip-shaped gasket is formed. The second separator component includes a surface that is on a side opposite to a protruding direction of the second three-dimensional shape portion and on which a three-dimensional shape fitting groove accommodating the first three-dimensional shape portion is formed.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: January 30, 2024
    Inventors: Taisuke Matsuda, Shigeru Watanabe
  • Publication number: 20230317978
    Abstract: A gasket includes a first separator having a first bead, and a second separator superposed with the first separator and having a second bead formed at a position opposite to the first bead, wherein the first separator further has a first protrusion disposed close to the first bead and protruding from a first separator front surface in the same direction as the protruding direction of the first bead, and the second separator further has a second protrusion disposed close to the second bead, protruding from a second separator rear surface in a direction opposite to the protruding direction of the second bead, and fittable to the first protrusion.
    Type: Application
    Filed: March 24, 2023
    Publication date: October 5, 2023
    Inventors: Hajime YUI, Shigeru WATANABE, Takeshi MASAKA
  • Publication number: 20220302475
    Abstract: A method of shaping a gasket on a separator without causing destruction and damage. A fuel battery separator gasket is shaped via a shaping of a sticking agent and a transfer of the sticking agent. During the shaping, the sticking agent to be the gasket is shaped on a flexible substrate having flexibility. During the transfer, the sticking agent shaped on the flexible substrate is transferred to one of a pair of separators facing each other with an electrolyte membrane provided in a fuel battery cell being interposed therebetween and each having a bead forming a flow path of fluid between the bead and the electrolyte membrane in close contact with the electrolyte membrane to shape the gasket.
    Type: Application
    Filed: September 1, 2020
    Publication date: September 22, 2022
    Applicant: NOK CORPORATION
    Inventors: Taisuke MATSUDA, Shigeru WATANABE
  • Publication number: 20220231310
    Abstract: A seal structure is provided that follows fluctuations in a gap between a pair of fuel cell separators without generating a large tightening force. A pair of separators facing each other with an electrolyte membrane as a mating member interposed therebetween have beads which form a flow path for fluid between the beads and the electrolyte membrane in close contact with the electrolyte membrane. A seal which seals the pair of separators causes the beads 14 of the pair of these separators to overlap each other in a nested manner. A seal material having elasticity is provided between side walls of the respective beads which face each other. When the gap between the pair of separators fluctuates, the seal material deforms in a shearing direction.
    Type: Application
    Filed: August 24, 2020
    Publication date: July 21, 2022
    Inventors: Taisuke MATSUDA, Shigeru WATANABE
  • Patent number: 11380909
    Abstract: A method includes a forming step of forming a first metal separator and a second metal separator each including a protruding sealing bead portion and a protruding stopper bead portion; a joining step of joining surfaces of the first metal separator and the second metal separator on sides opposite to sides on which their respective sealing bead portions protrude, and attaching seal members in an extension direction or on distal ends of the sealing bead portion; and a preload applying step of applying preload to a bead seal section formed of one pair of the sealing bead portions and the seal members and a stopper section formed of one pair of the stopper bead portions in a height direction thereof, thereby plastically deforming the bead seal section and the stopper section simultaneously.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: July 5, 2022
    Inventors: Yohei Sano, Shigeru Watanabe, Akihito Giga, Suguru Ohmori
  • Patent number: 11302931
    Abstract: A method of manufacturing a separator assembly for fuel cell includes a separator assembly forming step in which a separator assembly including a first metal separator and a second metal separator each having a protruding bead portion is formed by joining together the surfaces of the first and second metal separators opposite from their respective bead portions protruding, and a preload applying step in which a pair of platens apply a preload in a thickness direction of the separator assembly to a bead seal section formed of one pair of the bead portions, and thereby the bead seal section is plastically deformed. In the preload applying step, the preload applied to a linear portion of the bead seal section is set to be smaller than the preload applied to a curve portion of the bead seal section.
    Type: Grant
    Filed: December 21, 2020
    Date of Patent: April 12, 2022
    Assignee: NOK CORPORATION
    Inventors: Junichi Shimada, Hajime Yui, Shigeru Watanabe, Toshihiro Shimazoe
  • Publication number: 20220093940
    Abstract: A separator-integrated gasket is provided for making an electrolyte membrane unlikely to be deformed when a stack is assembled. The separator-integrated gasket for a fuel battery includes a lip-shaped gasket, first and second separator components, and a flat-shaped gasket. The first and second separator components are made of press-workable metal plates, and include first and second three-dimensional shape portions, respectively. The first separator component includes a surface that is on a side opposite to a protruding direction of the first three-dimensional shape portion and on which a gasket attachment groove holding the lip-shaped gasket is formed. The second separator component includes a surface that is on a side opposite to a protruding direction of the second three-dimensional shape portion and on which a three-dimensional shape fitting groove accommodating the first three-dimensional shape portion is formed.
    Type: Application
    Filed: March 24, 2020
    Publication date: March 24, 2022
    Inventors: Taisuke MATSUDA, Shigeru WATANABE
  • Publication number: 20210194019
    Abstract: A method includes a forming step of forming a first metal separator and a second metal separator each including a protruding sealing bead portion and a protruding stopper bead portion; a joining step of joining surfaces of the first metal separator and the second metal separator on sides opposite to sides on which their respective sealing bead portions protrude, and attaching seal members in an extension direction or on distal ends of the sealing bead portion; and a preload applying step of applying preload to a bead seal section formed of one pair of the sealing bead portions and the seal members and a stopper section formed of one pair of the stopper bead portions in a height direction thereof, thereby plastically deforming the bead seal section and the stopper section simultaneously.
    Type: Application
    Filed: December 21, 2020
    Publication date: June 24, 2021
    Inventors: Yohei SANO, Shigeru WATANABE, Akihito GIGA, Suguru OHMORI
  • Publication number: 20210194016
    Abstract: A method of manufacturing a separator assembly for fuel cell includes a separator assembly forming step in which a separator assembly including a first metal separator and a second metal separator each having a protruding bead portion is formed by joining together the surfaces of the first and second metal separators opposite from their respective bead portions protruding, and a preload applying step in which a pair of platens apply a preload in a thickness direction of the separator assembly to a bead seal section formed of one pair of the bead portions, and thereby the bead seal section is plastically deformed. In the preload applying step, the preload applied to a linear portion of the bead seal section is set to be smaller than the preload applied to a curve portion of the bead seal section.
    Type: Application
    Filed: December 21, 2020
    Publication date: June 24, 2021
    Applicant: NOK CORPORATION
    Inventors: Junichi SHIMADA, Hajime YUI, Shigeru WATANABE, Toshihiro SHIMAZOE
  • Patent number: 10780610
    Abstract: Provided is a structure in which an inserted article is easily inserted and a product is easily released from a die after molding. The structure includes a positioning mechanism which is vertically arranged on one split die, includes a positioning pin having a tapered distal end, and positions the inserted article by engaging the inserted article with the positioning pin, a stop mechanism that has a spring means assembled with the one split die and a stopper portion held by the spring means, and temporarily stops movement of the other split die when the other split die comes into contact with the stopper portion at the time of mold clamping, and a pressing mechanism that has a spring assembled with the other split die, a pusher pin, a spring assembled with the one split die, and a pusher pin, and elastically presses the inserted article by the pusher pin.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: September 22, 2020
    Assignee: NOK CORPORATION
    Inventors: Takeshi Masaka, Shigeru Watanabe
  • Patent number: 10717219
    Abstract: The purpose of the present invention is to make it possible to shorten the time required for a burr removal step and make it difficult for the burrs to detach from a sheet member in a step for removing the burrs together with the sheet member. For removal, by making the burrs to adhere to a pliable sheet member such as paper or nonwoven fabric that has been incorporated beforehand in the molding die and stripping the sheet member from the molding die, the burrs are removed together with the sheet member. The present invention is characterized in that in order to make it difficult for the burrs to detach from the sheet member during the stripping, a radiused shape with an arc-shaped cross-section is formed by the molding die on the areas surrounding the sections where the burrs adhere to the sheet member.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: July 21, 2020
    Assignee: NOK CORPORATION
    Inventors: Bunpei Yoshida, Takeshi Masaka, Shigeru Watanabe, Shun Murasaki
  • Patent number: 10374453
    Abstract: An uninterruptible power supply, including a plurality of power supply units, a plurality of battery units and an information integration management unit. Each power supply unit belongs to one of an operating system and a standby system. Each battery unit belongs to one of a power failure standby system and a power failure backup system. The information integration management unit manages the power supply units and the battery units, by receiving an instruction from an externally connected management device, and setting each of the power supply units to be in the operating system or the standby system, and setting each of the battery units to be in the power failure standby system or the power failure backup system, in accordance with the received instruction.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: August 6, 2019
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Shigeru Watanabe, Kazuhiro Iwai, Asuka Ohno
  • Patent number: 10090536
    Abstract: In a fuel battery seal structure, a gasket has a base portion fitted in a non-bonded manner to a seal installation groove of a separator, and a seal protrusion brought into close contact with a seal groove of a separator. Presser projections and clearance grooves are formed in both sides in a width direction of the seal groove. The presser projections are brought into contact with the base portion of the gasket, and the clearance grooves are positioned in an opposite side to the seal groove as seen from the presser projections. Sum of widths of the seal groove and the presser projections in both sides thereof is smaller than a width of the seal installation groove, and sum of widths of the seal groove, and the presser projections and the clearance grooves in both sides thereof is larger than the width of the seal installation groove.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: October 2, 2018
    Assignee: NOK Corporation
    Inventors: Toshihiro Shimazoe, Shigeru Watanabe