Patents by Inventor Kazumichi Shimizu

Kazumichi Shimizu 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: 20240094672
    Abstract: In a management system, an apparatus that is present in a user environment obtains a code that is specific to a device containing a consumable agent to be consumed for image formation or specific to a cartridge-type device insertable into an image-forming apparatus. A server apparatus that is present in a remote environment performs authentication for the device based on the code obtained by the apparatus. When the authentication performed by the server apparatus is successful, a replenishment path of the consumable agent from the device to the image-forming apparatus is opened or the replenishment path is allowed to be opened, or an inhibiting mechanism capable of inhibiting the device from being inserted into the image-forming apparatus is put in a state in which the device can be inserted.
    Type: Application
    Filed: November 30, 2023
    Publication date: March 21, 2024
    Inventors: MAREHIKO HIRAJIMA, HIROYUKI MUNETSUGU, KAZUMICHI SHIMIZU
  • Publication number: 20230361357
    Abstract: A power storage device includes a first electrode having a strip first current collector and a first active material layer carried on the first current collector, a second electrode having a strip second current collector and a second active material layer carried on the second current collector, and a separator interposed between the first electrode and the second electrode. The first electrode, the second electrode, and the separator form a columnar wound body. The first current collector has a plurality of first tabs electrically connected to one end along the longitudinal direction of the first current collector and extending radially inward of the wound body. The first tab has a proximal end portion connected to the first current collector, and a first wide portion wider than the proximal end portion. The plurality of first tabs are overlapped and welded to each other at their first wide portions.
    Type: Application
    Filed: September 17, 2021
    Publication date: November 9, 2023
    Inventors: Shinya GESHI, Shinichi SAKAMOTO, Kazumichi SHIMIZU, Kiyomi KOZUKI, Kazutoshi KOHIRA
  • Patent number: 11796937
    Abstract: An image forming apparatus includes an image bearing member, a replenishment unit, an agitation member, a drive source, a control unit, a memory unit, and a remaining amount detection unit. The control unit performs (1) a first operation to drive the drive source for a first time in a case where it is judged based on the output value of the remaining amount detection unit that the toner has increased, and (2) a second operation to drive the drive source for a second time that is shorter than the first time in a case where it is judged based on the output value of the remaining amount detection unit that the toner has not increased.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: October 24, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazumichi Shimizu
  • Publication number: 20230335754
    Abstract: A power storage device includes a first electrode having a first current collector, a second electrode having a second current collector, and a separator, which form a columnar wound body. The power storage device includes a cylinder covering an outer periphery of the columnar wound body and having a first opening, a sealing body sealing the first opening, and at least one first tab, its one end connected to the first current collector and the other end connected to the sealing body. The sealing body has a first member including a first face facing away from the columnar wound body, and a second member including a second face facing the columnar wound body. The other end of the first tab is welded to the first face of the first member to form a first welding portion that is positioned between the first face and the second face.
    Type: Application
    Filed: September 21, 2021
    Publication date: October 19, 2023
    Inventors: Shinya GESHI, Shinichi SAKAMOTO, Kazumichi SHIMIZU, Kiyomi KOZUKI, Kazutoshi KOHIRA
  • Publication number: 20230327300
    Abstract: A power storage device has a columnar wound body in which a first and second electrode are placed on top of another with a separator interposed therebetween. The first electrode has a first portion, a second portion, and a first connection portion that connects the first and second portion, and the first and second portion face each other. The first connection portion is provided in a band region of the first current collector along the winding direction of the wound body, as a first exposed portion not having the first active material layer and exposing the first current collector. The first and second portions are portions each having the first active material layer at both sides of the first connection portion. The second electrode is sandwiched by the first portion and the second portion with the separator interposed therebetween, and wound along the winding direction to form the wound body.
    Type: Application
    Filed: September 17, 2021
    Publication date: October 12, 2023
    Inventors: Shinya GESHI, Shinichi SAKAMOTO, Kazumichi SHIMIZU, Kiyomi KOZUKI, Kazutoshi KOHIRA
  • Publication number: 20230327299
    Abstract: A power storage device includes a first electrode having an elongated sheet first current collector, and a first active material layer carried on the first current collector, an elongated sheet second electrode, a separator interposed between the first electrode and the second electrode, a non-aqueous electrolyte, and a first current collecting portion electrically connected to the first current collector, wherein the first electrode, the second electrode, and the separator form a columnar wound body, one end portion along a longitudinal direction of the first current collector is a first exposed portion not having the first active material layer and projected from one end face of the wound body, the first current collecting portion has a porous metal portion, and one or more projected portions that are pressed into the porous metal portion, and the porous metal portion fills the gap of the first exposed portion.
    Type: Application
    Filed: September 21, 2021
    Publication date: October 12, 2023
    Inventors: Shinya GESHI, Shinichi SAKAMOTO, Kazumichi SHIMIZU, Kiyomi KOZUKI, Kazutoshi KOHIRA
  • Patent number: 11777165
    Abstract: A battery includes a metal battery can that has a tubular portion having an opening edge portion and a bottom portion; an electrode body that is in the battery can; an electrolytic solution that fills the battery can; and a sealing member that has an outer peripheral surface facing an inner peripheral surface of the opening edge portion of the tubular portion and is configured to seal the opening edge portion. A part of the inner peripheral surface of the opening edge portion and a part of the outer peripheral surface of the sealing member are joined by a melting portion, and a preventing portion is on the outer peripheral surface of the sealing member, the preventing portion being configured to prevent the electrolytic solution from rising toward a position, in which the melting portion is formed.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: October 3, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kota Shimizu, Takaaki Kassai, Kazumichi Shimizu, Shinya Geshi
  • Publication number: 20230307749
    Abstract: An electricity storage device to be disclosed includes: an electrode assembly including a first electrode and a second electrode; a can accommodating the electrode assembly and including a bottomed tubular shape with an opening provided at one end; and a sealing material joined to the one end of the can to seal the opening. The sealing material includes a first ring that is conductive, a second ring that is conductive and joined to the first ring, a terminal plate that is conductive provided between the first ring and the second ring, and an insulation ring insulating the first ring and the second ring from the terminal plate. An outer peripheral edge of the terminal plate is held between the first ring and the second ring with the insulation ring being put therebetween.
    Type: Application
    Filed: September 17, 2021
    Publication date: September 28, 2023
    Inventors: KAZUMICHI SHIMIZU, TAKESHI NAGAO, SHINYA GESHI
  • Patent number: 11717916
    Abstract: A cylindrical battery includes a bottom-closed cylindrical exterior package can which receives an electrode body. A lead connected to one of a positive electrode and a negative electrode of the electrode body is extended from the electrode body and is welded to a bottom portion of the exterior package can. When the bottom portion is viewed from the outside of the exterior package can, at least a part of the welding portion between the lead and the bottom portion formed by a molten mark is formed outside of a concentric circle of the bottom portion which has a diameter equivalent to the width of the lead.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: August 8, 2023
    Assignee: Panasonic Energy Co., Ltd.
    Inventors: Ryunosuke Yokoo, Kazumichi Shimizu
  • Publication number: 20230062553
    Abstract: A power storage device includes an electrode group, a case having an opening, and a sealing body. The sealing body includes an annular sealing plate, a terminal cap, and an insulating gasket. The sealing plate includes a first wall portion with a tubular shape and a flange portion extending from one end of the first wall portion outward in a radial direction of the first wall portion. The terminal cap includes a cover portion with a plate shape and a crimp portion connected with a periphery of the cover portion. The cover portion closes an opening of the first wall portion surrounded by another end of the first wall portion. The gasket includes a second wall portion with a tubular shape facing an outer peripheral surface of the first wall portion and an annular base disposed between the cover portion and the another end of the first wall portion. The crimp portion includes a third wall portion with a tubular shape surrounding at least a part of the second wall portion.
    Type: Application
    Filed: February 19, 2021
    Publication date: March 2, 2023
    Inventors: KAZUMICHI SHIMIZU, KAZUTOSHI KOHIRA, SHINYA GESHI
  • Publication number: 20230060460
    Abstract: A power storage device includes: an electrode group including first and second electrodes; a case accommodating the electrode group therein, the case having an opening; and a sealing body closing the opening of the case. The sealing body includes: an annular sealing plate having a first surface and a second surface opposite to the first surface, the sealing plate having a first through-hole provided therein; a terminal plate having a third surface and a fourth surface opposite to the third surface, the third surface facing the first surface of the sealing plate; and an annular gasket disposed between the sealing plate and the terminal plate, the gasket having a second through-hole overlapping the first through-hole. The sealing plate includes a first recessed portion and an outer peripheral portion connected to a peripheral edge of the first recessed portion, the first recessed portion having a recess in the first surface of the sealing plate and having the first through-hole therein.
    Type: Application
    Filed: February 19, 2021
    Publication date: March 2, 2023
    Inventors: KAZUMICHI SHIMIZU, KAZUTOSHI KOHIRA, SHINYA GESHI
  • Patent number: 11489239
    Abstract: A cylindrical battery includes an electrode unit configured as a roll of a first electrode plate and a second electrode plate with a separator in between. The first electrode plate is an electrode plate to which one end of a first electrode tab and one end of a second electrode tab are connected, and the second electrode plate has the opposite polarity from the first electrode plate. Additionally, a case houses the electrode unit and a sealing member seals an opening rim of the case. The first electrode tab and the second electrode tab are disposed to project out from the first electrode plate at opposite ends of a winding axis of the first electrode plate. The first electrode tab contacts at a bottom portion of the case and the second electrode tab is welded at the opening rim side opposite the bottom portion of the case.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: November 1, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Koji Funami, Izuru Nakai, Kazumichi Shimizu, Hiroshi Takasaki
  • Patent number: 11456513
    Abstract: A battery producible with high quality and at low costs by decreasing the output of an energy beam used to weld multiple current collecting tabs to an outer case and thus securing the sufficient margin of the output thereof. An aspect of the battery includes an overlapping part K of multiple current collecting tabs connected to a negative electrode of an electrode body being welded to an outer case via a weld group, and the weld group includes a weld part and weld part that are each in the form of a line when they are viewed from the outside of the outer case. The weld as a first weld serves to weld the outer case to all of the multiple current collecting tabs, and the weld as a second weld serves to weld the outer case to only one or some of the multiple current collecting tabs.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: September 27, 2022
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Kazumichi Shimizu, Shinya Mori
  • Publication number: 20220283525
    Abstract: An image forming apparatus includes an image bearing member, a replenishment unit, an agitation member a drive source, a control unit, a memory unit, and a remaining amount detection unit. The control unit performs (1) a first operation to drive the drive source for a first time in a case where it is judged based on the output value of the remaining amount detection unit that the toner has increased, and (2) a second operation to drive the drive source for a second time that is shorter than the first time in a case where it is judged based on the output value of the remaining amount detection unit that the toner has not increased.
    Type: Application
    Filed: February 28, 2022
    Publication date: September 8, 2022
    Inventor: Kazumichi Shimizu
  • Publication number: 20220149466
    Abstract: A battery includes a metal battery can that has a tubular portion having an opening edge portion at one end of the tubular portion and a bottom portion closing the other end of the tubular portion; an electrode body that is accommodated in the battery can; an electrolytic solution that fills the battery can; and a sealing member that has an outer peripheral surface disposed to face an inner peripheral surface of the opening edge portion of the tubular portion and seals the opening edge portion, in which a part of the inner peripheral surface of the opening edge portion and a part of the outer peripheral surface of the sealing member are joined by a melting portion, and a preventing portion, which prevents the electrolytic solution from rising toward a position, in which the melting portion is formed, between the inner peripheral surface of the opening edge portion and the outer peripheral surface of the sealing member, is provided on the outer peripheral surface of the sealing member, the preventing portion b
    Type: Application
    Filed: October 11, 2021
    Publication date: May 12, 2022
    Inventors: KOTA SHIMIZU, TAKAAKI KASSAI, KAZUMICHI SHIMIZU, SHINYA GESHI
  • Publication number: 20220131240
    Abstract: A method for manufacturing a battery, includes: preparing a case having an opening at one end portion of the case and a bottom portion at another end portion of the case; preparing an electrode group including a first electrode, a second electrode, and a current collecting lead electrically connected to the first electrode; housing the electrode group in the case; and joining the current collecting lead to an inner surface of the case. The joining of the current collecting lead includes: pressing a pressing device having a tubular shape against the current collecting lead to cause the current collecting lead to contact the inner surface of the case; and welding the current collecting lead to the case while an inside of a tube of the pressing device is sucked by a suction device.
    Type: Application
    Filed: March 17, 2020
    Publication date: April 28, 2022
    Inventor: KAZUMICHI SHIMIZU
  • Publication number: 20220123395
    Abstract: A battery including: a battery can including a cylinder portion including an opening edge portion at one end portion of the cylinder portion and a bottom portion that closes the other end portion of the cylinder portion; an electrode body; a sealing member that seals an opening of the opening edge portion. The sealing member includes: a sealing plate; a cap connected to the sealing plate and electrically insulated from the sealing plate; and a sealing portion sealing a space between the cylinder portion and the cap. The cap includes: a ring-shaped top plate portion opposing the opening edge portion in an axial direction of the cylinder portion; and a side wall portion covering an outer circumferential surface of the cylinder portion. The sealing portion may be a gasket provided between the cap and the cylinder portion in a compressed state. The cap is electrically connected to the cylinder portion.
    Type: Application
    Filed: November 29, 2019
    Publication date: April 21, 2022
    Inventors: Kazutoshi KOHIRA, Keisuke NAITO, Shinya GESHI, Hiroshi TAKASAKI, Kazumichi SHIMIZU
  • Publication number: 20220102789
    Abstract: Disclosed is a battery including: a battery can including a cylinder portion including an opening edge portion at one end portion thereof and a bottom portion closing the other end portion of the cylinder portion; an electrode body housed in the cylinder portion; and a sealing member fixed to the cylinder portion to seal an opening of an opening edge portion. The sealing member includes a lid portion covering the opening of the opening edge portion. A first engagement portion is formed in the end portion of the cylinder portion on the opening edge portion side, and a second engagement portion is formed in an end portion of the lid portion on an outer circumferential side. A first surface of the first engagement portion and a second surface of the second engagement portion are bonded, with the first surface and the second surface overlapping each other.
    Type: Application
    Filed: December 27, 2019
    Publication date: March 31, 2022
    Inventors: Kazumichi SHIMIZU, Koji FUNAMI, Hiroshi TAKASAKI
  • Publication number: 20220037723
    Abstract: A battery includes a battery can including a cylinder having a cylindrical shape and having an opening edge at one end, an electrode body, and a sealing member sealing an opening surrounded by the opening edge, in which the sealing member has a sealing plate electrically connected to a first electrode of the electrode body, a cap having a through hole corresponding to the sealing plate electrically insulated from the sealing plate, and a gasket that seals between the cylinder and the cap, the cap has a top plate having a ring shape and facing the cylinder, a side wall that is erected in an axial direction from a peripheral edge of the top plate and extends so as to overlap an outer surface of the cylinder, and a rib that is erected in the axial direction from the top plate inside of the side wall and extends so as to overlap an inner surface of the cylinder, the gasket is compressed in a radial direction of the cylinder between the rib and the cylinder, and the battery can and the cap are electrically connect
    Type: Application
    Filed: November 21, 2019
    Publication date: February 3, 2022
    Inventors: KAZUTOSHI KOHIRA, KAZUMICHI SHIMIZU
  • Publication number: 20210394305
    Abstract: The present disclosure includes a laser welding method in which a joint surface between a plurality of workpiece members is welded by radiating laser beam LB, and a locus of laser beam LB is controlled so as to perform wobbling scanning Sw by a combination of scanning motion Sa moving along first direction x parallel to the joint surface and swing motion Sb including first swing component Bx along first direction x and second swing component By along second direction y perpendicular to first direction x, the method including a defect determination step of determining occurrence of a welding defect; and an output control step of increasing or decreasing an output of laser beam LB when laser beam LB is radiated again toward the welding defect in a case where the welding defect occurs.
    Type: Application
    Filed: May 27, 2021
    Publication date: December 23, 2021
    Inventors: KOJI FUNAMI, KAZUKI FUJIWARA, KOTA SHIMIZU, KAZUMICHI SHIMIZU