Coulometer (i.e., Electrochemical Timer) Patents (Class 361/501)
  • Patent number: 10186386
    Abstract: A positive electrode and a negative electrode are formed on both main surfaces of a solid electrolyte. Preferably, the solid electrolyte is a thin film body with a thickness of less than or equal to 200 ?m, and contains an ion conductive compound such as Li ions. The positive electrode and the negative electrode contain an ion conductive substance, for example Li2O, which contains an ion conductive element such as Li, in a range of less than 50 vol % (not including 0 vol %), preferably 1 to 35 vol %.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: January 22, 2019
    Assignees: MURATA MANUFACTURING CO., LTD., ENERGY STORAGE MATERIALS LLC.
    Inventor: Satoshi Yokomizo
  • Patent number: 10164306
    Abstract: An electrochemical battery cell is provided having a housing formed by a can and a cup, with a sealing gasket disposed therebetween. First and second electrodes and electrolyte are disposed within the housing. The cup has a peripheral wall and a cup edge portion that extends inward, away from the can wall at angle less than 180° relative to a longitudinal axis of the cell housing. The gasket likewise has a base that extends inward, and a surface of the cup edge portion is sealingly engaged with the gasket base.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: December 25, 2018
    Assignee: Energizer Brands, LLC
    Inventors: Jeremy L. Allen, Robert M. Janmey
  • Patent number: 9653711
    Abstract: There is provided a flat battery including a positive electrode can, a negative electrode can, a positive electrode material, a negative electrode material, and a positive electrode ring provided on an inner surface of a bottom of the positive electrode can to hold one of the positive electrode material and the negative electrode material. The positive electrode ring has a side wall and a flange that extends outward to overlap an open end of a circumferential wall of the negative electrode can. The flange is placed between the open end of the circumferential wall of the negative electrode can and the inner surface of the bottom of the positive electrode can.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: May 16, 2017
    Assignee: HITACHI MAXELL, LTD.
    Inventors: Kenji Tsuda, Noriyuki Yabushita, Koji Yamaguchi, Atsushi Yamano
  • Patent number: 9164493
    Abstract: A timing device for indicating a passage of a duration of time is disclosed. The timing device in accordance with the embodiments of the invention has a grid array architecture. The grid array architecture includes an electrode structure with an anode layer, a cathode layer and a thermistor layer. The anode layer and the thermistor layer are electrically coupled through a plurality of cathode trace structures. In operation the timing device is actuated through a suitable mechanism to initiate depletion of the anode layer and, thereby, indicate a passage of a duration time. As the anode layer depletes, sequential cathode trace structures are exposed and the thermistor layer acts as a temperature dependent resistor through a plurality of exposed cathode trace structures.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: October 20, 2015
    Assignee: Vision Works IP Corporation
    Inventor: Alfred S. Braunberger
  • Patent number: 8248757
    Abstract: This invention provides a nonaqueous lithium-type storage element using an activated carbon having a specific porous structure in a positive electrode. A storage element using a conventional carbonaceous material in a positive electrode has a problem that, although the capacitance is large, the output characteristics are disadvantageously unsatisfactory. The nonaqueous lithium-type storage element using a material, which can occlude and release lithium ions in a negative electrode, can improve output characteristics while maintaining the energy density of the storage element at a substantially equal value by using, in a positive electrode, an activated carbon, satisfying 0.3<V1?0.8 and 0.5?V2?1.0 wherein V1 represents the amount of mesopores derived from pores having a diameter of not less than 20 ? and not more than 500 ?, cc/g; and V2 represents the amount of micropores derived from pores having a diameter of less than 20 ?, cc/g.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: August 21, 2012
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Toshio Tsubata, Michiko Shimoyamada, Akihiro Mabuchi
  • Patent number: 8177400
    Abstract: There is provided an outer mirror with turn lamp that facilitates assembling of a housing cover to a mirror housing and increases strength of the housing cover. A turn lamp assembly is mounted to a mirror housing. A housing cover is placed over and mounted to a partial area of the mirror housing. Thus, a lens of the turn lamp assembly is exposed through an opening formed in an outer position of the housing cover. The mirror housing and the housing cover are connected to each other with a ridge and a groove in end surfaces and abutting against and fitting each other. On a wall on an inner side of the mirror that constitutes a part of the component of the groove in the housing cover, at an assembling start position in an outer position outside the opening, an assembling leading rib is formed that protrudes in a direction abutting against the end surface of the mirror housing.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: May 15, 2012
    Assignee: Murakami Corporation
    Inventor: Yoshihiro Murata
  • Patent number: 8110011
    Abstract: A high voltage capacitor design is provided that provides improved performance. The high voltage capacitor includes a stack of mechanically bonded capacitor cells, which in one variant utilize a separator formed of two layers of paper. In one version, the high voltage capacitor may be used as a capacitative voltage divider.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: February 7, 2012
    Assignee: Maxwell Technologies, Inc.
    Inventors: Joseph Bulliard, Eric Pasquier
  • Patent number: 7974101
    Abstract: A power converter in which the structure of a connecting portion is highly resistant against vibration and has a low inductance. The power converter includes a plurality of capacitors and a laminate made up of a first wide conductor and a second wide conductor joined in a layered form with an insulation sheet interposed between the first and second wide conductors. The laminate comprises a first flat portion including the plurality of capacitors which are supported thereon and electrically connected thereto, a second flat portion continuously extending from the first flat portion while being bent, and connecting portions formed at ends of the first flat portion and the second flat portion and electrically connected to the exterior.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: July 5, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Katsunori Azuma, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
  • Patent number: 7626893
    Abstract: The present invention provides an electrochemical timer device (110) having a source (101) and a drain (102) contact. The device further comprises a switch channel (104) and a delay reservoir (103) that are electrochemically interconnected with a gate electrode (105). The switch channel (104) interconnects the source (101) and drain (102) contacts and is arranged to change electrical conductivity upon electrochemistry therein, and an electrochemical reaction is arranged to occur in the gate electrode (105) and delay reservoir (103) upon application of a drive voltage there between. The delay reservoir (103) is arranged such that the electrochemical reaction occurring therein gradually moves towards the switch channel (104) and eventually reaches the switch channel (104) after a delay time thereby changing the electrical conductivity of the switch channel (104).
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: December 1, 2009
    Assignee: ACREO AB
    Inventors: Nathaniel Robinson, David Nilsson, Magnus Berggren
  • Patent number: 7325285
    Abstract: A high voltage capacitor design is provided that provides improved performance. The high voltage capacitor includes a stack of mechanically bonded capacitor cells, which in one variant utilize a separator formed of two layers of paper. In one version, the high voltage capacitor may be used as a capacitative voltage divider.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: February 5, 2008
    Assignee: Maxwell Technologies, Inc.
    Inventors: Joseph Bulliard, Eric Pasquier
  • Patent number: 6934146
    Abstract: A niobium powder for a capacitor having a tapping density of 0.5 to 2.5 g/ml, and average particle size of 10 to 1000 ?mum, angle of repose form 10° to 60°, the BET specific surface area from 0.5 to 40 m2/g and a plurity of pore diameter peak tops in the pore distribution, and a producing method therof; (2) a niobium sintered body, which is obtained by sintering the above niobium powder and, having a plurality of pore diameter peak tops in a range of 0.01 ?mum to 500 ?mum, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 ?mum and in the range of 0.7 to 3 ?mum, respectively, and a producing method thereof; (3) a capacitor using the above sintered body and a producing method thereof, and (4) an electronic circuit and electronic device using the above capacitor.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: August 23, 2005
    Assignee: Showa Denko K.K.
    Inventors: Kazuhiro Omori, Kazumi Naito, Toshiya Kawasaki, Kouichi Wada
  • Publication number: 20030218857
    Abstract: A niobium powder for a capacitor having a tapping density of 0.5 to 2.5 g/ml, and average particle size of 10 to 1000 &mgr;mum, angle of repose form 10° to 60°, the BET specific surface area from 0.5 to 40 m2/g and a plurity of pore diameter peak tops in the pore distribution, and a producing method therof; (2) a niobium sintered body, which is obtained by sintering the above niobium powder and, having a plurality of pore diameter peak tops in a range of 0.01 &mgr;mum to 500 &mgr;mum, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 &mgr;mum and in the range of 0.7 to 3 &mgr;mum, respectively, and a produing method thereof; (3) a capacitor using the above sintered body and a producing method thereof; and (4) an electronic circuit and electronic device using the above capacitor.
    Type: Application
    Filed: February 6, 2003
    Publication date: November 27, 2003
    Inventors: Kazuhiro Omori, Kazumi Naito, Toshiya Kawasaki, Kouichi Wada
  • Publication number: 20020171998
    Abstract: An electric workstation in the shape of a hollow cabinet allows bringing electrical power connections to a site remote from a municipal electrical power supply. The cabinet is provided with one or more electrical sockets for connecting of electrically-powered tools and equipment, as well as one or more reels for holding electrical extension cords. A pair of front stationary legs and rotating wheels that allow easy moving of the cabinet to the desired location supports the cabinet. A handle secured adjacent the upper part of the cabinet allows to pull or push the cabinet when required.
    Type: Application
    Filed: May 16, 2001
    Publication date: November 21, 2002
    Inventor: Bernard A. Brennan
  • Patent number: 4810599
    Abstract: A structure comprising a pair of electrode sheets and an electrolyte sheet, the latter being sandwiched in between the former, wherein each of the pair of electrode sheets comprises a mixture comprising an insulating elastomer and an electrode active substance powder and/or an inorganic solid electrolyte powder, in which mixture the electrode active substance powder and/or the inorganic solid electrolyte powder are dispersed in a volume fraction of 75-95% in the insulating elastomer, and said electrolyte sheet comprises a mixture of an inorganic solid electrolyte powder and an insulating elastomer and optionally an electrode active substance powder, in which mixture the inorganic solid electrolyte powder and optionally the electrode active substance powder are dispersed in a volume fraction of 55-95% in the insulating elastomer. Each of said electrode sheet and said electrolyte sheet may further comprise a reticulate material sheet, the openions of which are filled with the mixture.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: March 7, 1989
    Assignees: Japan Synthetic Rubber Co., Ltd., Matsushita Electric Industrial Co., Ltd.
    Inventors: Shigeo Kondo, Naoshi Yasuda, Masaki Nagata, Tadashi Sotomura