Patents by Inventor Hisashi Tsukamoto

Hisashi Tsukamoto 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: 9991497
    Abstract: An electric storage battery and method of manufacture thereof characterized by a feedthrough pin which is internally directly physically and electrically connected to an inner end of a positive electrode substrate. A C-shaped mandrel extends around the pin and substrate end enabling the pin/mandrel to be used during the manufacturing process as an arbor to facilitate winding layers of a spiral jellyroll electrode assembly. The pin additionally extends from the battery case and in the final product constitutes one of the battery terminals with the battery case comprising the other terminal. Active material is removed from both sides of the outer end of the negative electrode in the jellyroll to allow room for adhesive tape to secure the jellyroll. The electrolyte is injected through the open end of the case after the endcap is welded to the negative electrode but before sealing the endcap to the case. The electrolyte is preferably injected through the C-shaped mandrel to facilitate and speed filling.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: June 5, 2018
    Assignee: QUALLION, LLC.
    Inventors: David M. Skinlo, Hisashi Tsukamoto, Andrew Szyszkowki, Leon Parkhouse, Vladimir Zolotnik
  • Patent number: 9882247
    Abstract: A lithium ion battery particularly configured to be able to discharge to a very low voltage, e.g. zero volts, without causing permanent damage to the battery. More particularly, the battery is configured to define a Zero Volt Crossing Potential (ZCP) which is lower than a Damage Potential Threshold (DPT).
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: January 30, 2018
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Clay Kishiyama, Mikito Nagata, Hiroshi Nakahara, Tiehua Piao
  • Publication number: 20170125838
    Abstract: A lithium ion battery particularly configured to be able to discharge to a very low voltage, e.g. zero volts, without causing permanent damage to the battery. More particularly, the battery is configured to define a Zero Volt Crossing Potential (ZCP) which is lower than a Damage Potential Threshold (DPT).
    Type: Application
    Filed: September 16, 2013
    Publication date: May 4, 2017
    Inventors: Hisashi Tsukamoto, Clay Kishiyama, Mikito Nagata, Hiroshi Nakahara, Tiehua Piao
  • Patent number: 9331362
    Abstract: The battery includes an electrode having an active medium on a current collector. The active medium includes one or more active materials. The current collector includes or consists of carbon nanotubes. The electrical conductivity and weight of carbon nanotubes permit the weight of the battery to be reduced while the energy density and the power density of the battery are increased.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: May 3, 2016
    Assignee: Quallion LLC
    Inventors: Ryo Tamaki, Hisashi Tsukamoto, Mikito Nagata
  • Patent number: 9269956
    Abstract: The battery includes a cathode configured to generate oxygen ions during discharge of the battery. The battery also includes an oxygen ion-conducting electrolyte that receives the oxygen ions from the cathode during discharge of the battery. The battery further includes an anode that has an anode active medium positioned in the pores of a porous anode current collector. The anode active medium receives the oxygen ions conducted through the oxygen ion conducting electrolyte during discharge of the battery. Additionally, the anode active medium includes an elemental metal that reacts with the oxygen ions to form a metal oxide during discharge of the battery.
    Type: Grant
    Filed: May 13, 2010
    Date of Patent: February 23, 2016
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Ryo Tamaki
  • Patent number: 9192772
    Abstract: Disclosed is a medical power system for powering an implantable medical device including an implantable rechargeable battery pack, a wearable power source, a power cart, and an external power supply. The system may be used in three modes: 1) Fully disconnected (powered by implanted battery only); 2) Power provided by a wearable power source and/or a portable wheeled power cart via an inductive link, and 3) Nonportable power provided by a non-portable source such as an AC outlet with an uninterruptible power supply. The system includes automatic choice of the optimum source of power depending on the circumstances, and greatly increases “untethered time” a bionic-dependent patient may spend.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: November 24, 2015
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Clay Kishiyama
  • Patent number: 9142824
    Abstract: A plate-like battery pack has: a plurality of single cell elements; a flat battery pack case composed of an insulating material and adapted to have a plurality of holes respectively housing the single cell elements; and a plurality of sealing plates adapted to hermetically seal the holes housing the single cell elements and connect adjacent ones of the single cell elements, and the sealing plates connect the single cell elements in series, parallel or series-parallel.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: September 22, 2015
    Assignee: CONNEXX SYSTEMS CORPORATION
    Inventor: Hisashi Tsukamoto
  • Publication number: 20150074987
    Abstract: A lithium ion battery particularly configured to be able to discharge to a very low voltage, e.g. zero volts, without causing permanent damage to the battery. More particularly, the battery is configured to define a Zero Volt Crossing Potential (ZCP) which is lower than a Damage Potential Threshold (DPT).
    Type: Application
    Filed: September 16, 2013
    Publication date: March 19, 2015
    Inventors: Hisashi Tsukamoto, Clay Kishiyama, Mikito Nagata, Hiroshi Nakahara, Tiehua Piao
  • Publication number: 20150047181
    Abstract: An electric storage battery and method of manufacture thereof characterized by a feedthrough pin which is internally directly physically and electrically connected to an inner end of a positive electrode substrate. A C-shaped mandrel extends around the pin and substrate end enabling the pin/mandrel to be used during the manufacturing process as an arbor to facilitate winding layers of a spiral jellyroll electrode assembly. The pin additionally extends from the battery case and in the final product constitutes one of the battery terminals with the battery case comprising the other terminal. Active material is removed from both sides of the outer end of the negative electrode in the jellyroll to allow room for adhesive tape to secure the jellyroll. The electrolyte is injected through the open end of the case after the endcap is welded to the negative electrode but before sealing the endcap to the case. The electrolyte is preferably injected through the C-shaped mandrel to facilitate and speed filling.
    Type: Application
    Filed: August 7, 2014
    Publication date: February 19, 2015
    Inventors: David M. Skinlo, Hisashi Tsukamoto, Andrew Szyszkowski, Leon Parkhouse, Vladimir Zolotnik
  • Publication number: 20140349151
    Abstract: A plate-like battery pack has: a plurality of single cell elements; a flat battery pack case composed of an insulating material and adapted to have a plurality of holes respectively housing the single cell elements; and a plurality of sealing plates adapted to hermetically seal the holes housing the single cell elements and connect adjacent ones of the single cell elements, and the sealing plates connect the single cell elements in series, parallel or series-parallel.
    Type: Application
    Filed: February 19, 2014
    Publication date: November 27, 2014
    Applicant: Connexx Systems Corporation
    Inventor: Hisashi TSUKAMOTO
  • Publication number: 20140335415
    Abstract: The battery includes one or more electrodes that each has an active layer on a current collector. The active layer including active particles. The active particles include elongated particles embedded in an active medium such that at least a portion of the elongated particles each extends from within the active medium past a surface of the active medium.
    Type: Application
    Filed: April 18, 2011
    Publication date: November 13, 2014
    Inventors: Ryo Tamaki, Mikito Nagata, Hisashi Tsukamoto
  • Publication number: 20140335418
    Abstract: The battery includes an electrode having an active medium on a current collector. The active medium includes one or more active materials. The current collector includes or consists of carbon nanotubes. The electrical conductivity and weight of carbon nanotubes permit the weight of the battery to be reduced while the energy density and the power density of the battery are increased.
    Type: Application
    Filed: December 21, 2009
    Publication date: November 13, 2014
    Inventors: Ryo Tamaki, Hisashi Tsukamoto, Mikito Nagata
  • Patent number: 8815453
    Abstract: The battery has an electrode assembly that includes one or more anodes and one or more cathodes. A first liquid phase is positioned in an active region of the electrode assembly. The first phase includes a first fire retardant and an electrolyte. A second liquid phase is in contact with the first liquid phase. The second liquid phase includes a second fire retardant that is different from the first fire retardant.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: August 26, 2014
    Assignee: Quallion LLC
    Inventor: Hisashi Tsukamoto
  • Patent number: 8715863
    Abstract: The battery includes an electrolyte activating one or more cathodes and one or more anodes. The electrolyte includes one or more salts in a solvent. The solvent includes one or more organic solvents and one or more silanes and/or one or more siloxanes.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: May 6, 2014
    Assignee: Quallion LLC
    Inventors: Zhengcheng Zhang, Phuong-Nghi Karen Lam, Mikito Nagata, Hisashi Tsukamoto
  • Patent number: 8704485
    Abstract: A battery pack system is disclosed. The battery pack system includes a plurality of battery pack modules that are each configured to be concurrently and removably attached to a base. Each battery pack module includes batteries arranged in a plurality of parallel groups that are connected in series. Each parallel group includes a plurality of batteries connected in parallel. Additionally or alternately, the base has electronics that connect the battery pack modules in a plurality of system parallel groups that are connected in series. Each system parallel group includes a plurality of battery pack modules connected in parallel.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: April 22, 2014
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Taison Tan
  • Patent number: 8697294
    Abstract: The battery includes a solid electrolyte activating a positive electrode and a negative electrode. The electrolyte is a solid including a lithium ion conductive glass-ceramic. The negative electrode includes a buffer layer between a negative medium and the electrolyte. The negative medium includes one or more primary negative active materials. The buffer layer includes one or more secondary negative active materials that do not dissolve the lithium ion conductive glass-ceramic. The secondary negative active materials can have a redox potential greater than 0.5 V vs Li/Li+.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: April 15, 2014
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Ryo Tamaki, Mikito Nagata, Hiroshi Nakahara
  • Patent number: 8679666
    Abstract: The battery pack includes a case that contains batteries and includes terminals through which power from the batteries can be accessed. The battery pack also includes a frame that defines battery receiving compartments that are each configured to receive one of the batteries with the frame immobilizing the position of each battery relative to the other batteries. The frame has a perimeter and at a portion of the frame perimeter serves as an outermost wall of the case.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: March 25, 2014
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Mikito Nagata, Michael Tomcsi, Aaron Castillo, Alex Pal, Joice Yi, Zarui Sara Chikneyan
  • Patent number: 8679677
    Abstract: The electrochemical device includes a composite electrode. The composite electrode has a working electrode that includes a current collector. A reference electrode is immobilized on the current collector. The reference electrode includes a reference active medium on a reference current collector. The reference current collector is electrically insulated from the current collector. A top surface of the reference electrode is substantially flush with a top surface of the working electrode. The top surface of the reference electrode is a surface of the reference electrode that is substantially parallel to the reference current collector.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: March 25, 2014
    Assignee: Quallion LLC
    Inventors: Ryo Tamaki, Mikito Nagata, Hisashi Tsukamoto
  • Patent number: 8637184
    Abstract: The battery includes a positive electrode having a first active material on a positive substrate. The first active material includes LiNixCo1-x-yMyO2 wherein M is chosen from the group consisting of Mn, Al, Mg, B, Ti, and Li, and wherein 0.5?x?1 and 0?y?0.3. The battery also includes a negative electrode having a second active material on a negative substrate. The second active material includes carbon. The negative electrode is susceptible to damage when a voltage exceeding a Damage Potential Threshold (DPT) is applied to the negative electrode. The DPT is lower than the maximum positive operating potential of the battery. The positive and negative electrodes define a Zero Volt Crossing Potential (ZCP) relative to a reference level when the voltage between the positive electrode and the negative electrode is zero. The positive electrode and the negative electrode are configured such that the value of the ZCP is less than the value of the DPT at a predetermined temperature.
    Type: Grant
    Filed: July 6, 2006
    Date of Patent: January 28, 2014
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Clay Kishiyama, Mikito Nagata, Hiroshi Nakahara, Tiehua Piao
  • Patent number: 8535831
    Abstract: A lithium ion battery particularly configured to be able to discharge to a very low voltage, e.g. zero volts, without causing permanent damage to the battery. More particularly, the battery is configured to define a Zero Volt Crossing Potential (ZCP) which is lower than a Damage Potential Threshold (DPT).
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: September 17, 2013
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Clay Kishiyama, Mikito Nagata, Hiroshi Nakahara, Tiehua Piao