Patents by Inventor Yuichi Aihara

Yuichi Aihara 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: 20200161699
    Abstract: An all-solid secondary battery includes: a cathode layer including a cathode active material; an anode layer; and a solid electrolyte layer disposed between the cathode layer and the anode layer, wherein at least one of the cathode layer, the anode layer, or the solid electrolyte layer includes a phase-transition solid electrolyte material, wherein upon heating, the phase-transition solid electrolyte material undergoes a phase transition from a first phase to a second phase, and the second phase has an ionic conductivity less than the ionic conductivity of the first phase.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 21, 2020
    Inventors: Seitaro ITO, Tomoyuki TSUJIMURA, Yuichi AIHARA
  • Publication number: 20200152986
    Abstract: An all-solid secondary battery including: a cathode; an anode; and a solid electrolyte layer interposed between the cathode and the anode, wherein the cathode includes a cathode active material, wherein the anode includes an anode current collector and an anode active material layer on the anode current collector, wherein the anode active material layer includes a binder and an anode active material that does not include an alkali metal, wherein the binder includes a polymer main chain and a polyvinyl alcohol-containing copolymer, and wherein the polymer main chain includes polyvinyl alcohol, a polyvinyl alcohol derivative, or a combination thereof, and the polyvinyl alcohol-containing copolymer has at least one repeating unit linked to the polymer main chain.
    Type: Application
    Filed: August 26, 2019
    Publication date: May 14, 2020
    Inventors: Yonggun LEE, Toshinori SUGIMOTO, Saebom RYU, Yuichi AIHARA, Dongmin IM
  • Publication number: 20200144599
    Abstract: An anodeless coating layer for an all-solid battery, the anodeless coating layer includes: an anode active material capable of forming an alloy with lithium or a compound with lithium; and a binder, wherein the binder includes a block copolymer including a conductive domain, a non-conductive domain, or a combination thereof, and wherein the conductive domain includes an ion-conductive domain, an electron-conductive domain, or a combination thereof.
    Type: Application
    Filed: November 5, 2019
    Publication date: May 7, 2020
    Inventors: Yonggun Lee, Toshinori SUGIMOTO, Yuichi AIHARA, Saebom Ryu, Dongmin Im
  • Publication number: 20190375220
    Abstract: To provide a printing apparatus of high printing quality for decreasing a transport amount of a film-shaped medium used in the printing apparatus, and suppressing skew of the film-shaped medium, a control section 100 that controls a transport section 49 for transporting a film-shaped medium 46 controls a transport amount of the film-shaped medium 46, corresponding to information on whether or not to print on only one side of a recording medium in detecting a type and/or Empty of the film-shaped medium 46, based on a mark detection result in initializing operation of the film-shaped medium 46.
    Type: Application
    Filed: June 6, 2019
    Publication date: December 12, 2019
    Inventor: Yuichi AIHARA
  • Patent number: 10497933
    Abstract: A cathode active material including a first composite oxide represented by Formula (1): xV2O5.Li3PO4??(1) wherein, in Formula 1, x satisfies 2<x?10.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: December 3, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Satoshi Fujiki, Tomoyuki Shiratsuchi, Yuichi Aihara
  • Publication number: 20190348707
    Abstract: A method of preparing a sulfide solid electrolyte, the method including: first contacting a starting materials including Li2S, P2S5, and LiI in a first solvent to provide a precursor; and second contacting the precursor with a second solvent to prepare the sulfide solid electrolyte, wherein the first solvent includes a C1-C3 alkyl group or a cyclic ether compound which is unsubstituted or substituted with a C1-C3 alkoxy group, and the second solvent includes a C1-C10 hydrocarbon substituted with a C1 to C6 alkoxy group.
    Type: Application
    Filed: April 25, 2019
    Publication date: November 14, 2019
    Inventors: Seitaro ITO, Tomoyuki TSUJIMURA, Yuichi AIHARA, Nobuya MACHIDA
  • Patent number: 10442221
    Abstract: Disclosed herein is a medium conveying apparatus in which the time for unjamming can be shortened. The medium conveying apparatus includes rollers configured to convey a card Ca, a rotary unit F provided in a medium conveyance path and configured to hold and rotate the card Ca, a sensor SN26 arranged downstream the rotary unit F on the medium conveyance path and, and a control section. The control section controls a first card-conveyance motor for driving the rollers to convey the card Ca into the rotary unit F, and determines whether the sensor SN26 detects the card Ca. The sensor SN26 is arranged at the same distance as a sensor SN3 or a shorter distance than the sensor SN3, from the rotary unit F.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: October 15, 2019
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Yuichi Aihara, Kota Hihara
  • Patent number: 10434795
    Abstract: A transfer apparatus includes a transfer device which performs transfer processing to transfer a transfer layer or protection layer to first and second faces of a card-shaped recording medium, a correcting device which performs decurl processing to correct a curl of the recording medium to which the transfer layer is transferred, a transfer sequence determining device which determines a transfer sequence to the first face and the second face of the recording medium, and a control device which controls the transfer device and the correcting device. The transfer sequence determining device determines the transfer sequence so that the transfer processing is performed alternately on the first face and the second face at least once. The control device performs the decurl processing with the correcting device for the difference between the number of times of the transfer processing on the first face and the second face of the recording medium.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: October 8, 2019
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Yuichi Aihara, Kota Hihara
  • Publication number: 20190260065
    Abstract: An all-solid-state secondary battery including: a positive electrode active material layer including a positive electrode active material and a sacrificial positive electrode material having an oxidation-reduction potential which is less than a discharge voltage of the positive electrode active material; and a negative electrode active material layer including a negative electrode active material including an element alloyable with lithium or that forms a compound with lithium; and a solid electrolyte layer between the positive electrode active material layer and the negative electrode active material layer, wherein the sacrificial positive electrode material includes a sacrificial active material and a conductive agent.
    Type: Application
    Filed: February 20, 2019
    Publication date: August 22, 2019
    Inventors: Nobuyoshi YASHIRO, Seitaro ITO, Tomoyuki SHIRATSUCHI, Yuichi AIHARA
  • Patent number: 10340506
    Abstract: A positive electrode for a lithium ion secondary battery, the positive electrode including a positive electrode particle including a positive active material particle, wherein the positive electrode particle comprises a first coating layer on a surface of the positive active material particle wherein the first coating layer includes a carbonaceous material, and a second coating layer on the first coating layer, wherein the second coating layer includes a lithium-containing compound, and a sulfide solid electrolyte contacting the positive electrode particle.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: July 2, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yuichi Aihara, Heidy Hodex Visbalmendoza, Seitaro Ito
  • Publication number: 20190190064
    Abstract: An all-solid secondary battery, comprising: a cell comprising a positive electrode active material layer, a negative electrode active material comprising at least one of lithium metal and a lithium-containing alloy, and a solid electrolyte layer disposed between the positive electrode active material layer and the negative electrode active material layer, wherein a ratio of volume density to true density of the positive electrode active material layer is about 0.6 or greater, wherein a ratio of volume density to true density of the solid electrolyte layer is about 0.6 or greater, and wherein an average pressure applied to opposite sides of the solid electrolyte layer in a fully discharged state is greater than 0 megapascals and 7.5 megapascals or less.
    Type: Application
    Filed: September 27, 2018
    Publication date: June 20, 2019
    Inventors: Satoshi FUJIKI, Takanobu YAMADA, Taku WATANABE, Yuichi AIHARA, Shiratsuchi TOMOYUKI
  • Publication number: 20190157723
    Abstract: An all-solid-state secondary battery including: a cathode including a cathode active material layer; an anode including an anode current collector, and an anode active material layer on the anode current collector, wherein the anode active material layer includes an anode active material which is alloyable with lithium or forms a compound with lithium; and a solid electrolyte layer between the cathode and the anode, wherein a ratio of an initial charge capacity (b) of the anode active material layer to an initial charge capacity (a) of the cathode active material layer satisfies a condition of Equation 1: 0.01<(b/a)<0.5, wherein a is the initial charge capacity of the cathode active material layer determined from a first open circuit voltage to a maximum charging voltage, and b is the initial charge capacity of the anode active material layer determined from a second open circuit voltage to 0.01 volts vs. Li/Li+.
    Type: Application
    Filed: November 20, 2018
    Publication date: May 23, 2019
    Inventors: Naoki SUZUKI, Nobuyoshi YASHIRO, Takanobu YAMADA, Yuichi AIHARA
  • Publication number: 20190148769
    Abstract: A solid electrolyte for an all-solid secondary battery, wherein the solid electrolyte has a composition represented by Formula (1): Li7-xPS6-xBrx??(1) wherein 1.2<x<1.75, the solid electrolyte has an argyrodite crystal structure, and the solid electrolyte has at least one peak at a position of a 29.65±0.50° 2? when analyzed by X-ray diffraction using CuK? radiation.
    Type: Application
    Filed: November 5, 2018
    Publication date: May 16, 2019
    Inventors: Yuichi AIHARA, Tomoyuki TSUJIMURA
  • Publication number: 20190140265
    Abstract: A positive electrode active material includes a core and a coating disposed on at least a portion of a surface of the core. The core includes a lithium metal oxide, a lithium metal phosphate, or a combination thereof. The coating includes a compound according to the formula LimM1nXp, wherein M1, X, m, n and p are as defined herein. Also, an electrochemical cell including the positive electrode active material, and methods for the manufacture of the positive electrode active material and the electrochemical cell.
    Type: Application
    Filed: May 3, 2018
    Publication date: May 9, 2019
    Inventors: Lincoln Miara, Yan Wang, Tomoyuki Tsujimura, Yuichi Aihara, William Richards, Gerbrand Ceder
  • Publication number: 20190067695
    Abstract: An all-solid-state secondary battery including: a positive electrode layer; a negative electrode layer; and a solid electrolyte layer between the positive electrode layer and the negative electrode layer, wherein the positive electrode layer includes a sulfur-containing positive electrode active material, a halogen-containing sulfide solid electrolyte, and a conductive carbon material, and wherein the sulfur-containing positive electrode active material includes elemental sulfur and a transition metal disulfide.
    Type: Application
    Filed: August 27, 2018
    Publication date: February 28, 2019
    Inventors: Seitaro ITO, Ulderico ULISSI, Yuichi AIHARA, Alberto VARZI, Stefano PASSERINI
  • Publication number: 20190044146
    Abstract: A lithium secondary battery including: a positive electrode, a negative electrode, and a sulfide solid electrolyte disposed between the positive electrode and the negative electrode, wherein the positive electrode includes a positive active material particle and a coating film including an oxide including lithium (Li) and zirconium (Zr) on a surface of the positive active material particle.
    Type: Application
    Filed: October 8, 2018
    Publication date: February 7, 2019
    Inventors: Seitaro ITO, Satoshi FUJIKI, Takanobu YAMADA, Yuichi AIHARA
  • Patent number: 10193152
    Abstract: A lithium ion secondary battery including: a cathode including a plurality cathode active material particles; an electrolyte; and an anode, wherein a cathode active material particle of the plurality of cathode active material particles has a plate-shaped crystal structure having an aspect ratio of 2 to 1000, wherein a major surface in at least one direction of the plate-shaped crystal structure is a 111 face, wherein the cathode active material particle also has a spinel-type crystal structure, and wherein the cathode active material particle has a composition represented by the formula LiCo2-xNixO4, wherein 0<x<2.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: January 29, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., TOHOKU TECHNO ARCH CO., LTD.
    Inventors: Itaru Honma, Murukanahally Kempaiah Devaraju, Yuichi Aihara, Seitaro Ito
  • Patent number: 10186730
    Abstract: An electrolyte for a secondary battery, the electrolyte including: an organic solvent; and a lithium ion conductive solid electrolyte represented by the formula LiaPbSc wherein 3<a<5, 1<b<3, and 6<c<8, and wherein at least a portion of the solid electrolyte is dissolved in the organic solvent.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: January 22, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ryo Omoda, Yuichi Aihara, Seitaro Ito, Takanobu Yamada
  • Patent number: 10168389
    Abstract: A lithium ion secondary battery including a cathode layer, an anode layer including an anode active material and a coating including a metal element, wherein the coating is disposed on the anode active material; and a solid electrolyte layer disposed between the cathode layer and the anode layer, wherein the coating has an electrochemical reaction potential with lithium that is greater than an electrochemical reaction potential of the anode active material with lithium.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: January 1, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Satoshi Fujiki, Takanobu Yamada, Yuichi Aihara, Naoki Suzuki
  • Publication number: 20180351159
    Abstract: An all-solid secondary battery including: a cathode including a cathode active material layer; an anode including an anode active material layer; and a solid electrolyte layer including a sulfide solid electrolyte between the cathode active material layer and the anode active material layer, wherein an arithmetic mean roughness (Ra) of an interface between the cathode active material layer and the solid electrolyte layer is about 1 micrometer or less, and a relative density of the solid electrolyte layer is about 80% or more.
    Type: Application
    Filed: May 29, 2018
    Publication date: December 6, 2018
    Inventors: Satoshi FUJIKI, Takanobu YAMADA, Tomoyuki SHIRATSUCHI, Yuichi AIHARA