Patents by Inventor Taisuke Yamamoto

Taisuke Yamamoto 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: 20190219182
    Abstract: A check valve includes a casing in which a fluid inlet, a valve chamber, a valve seat portion, and a fluid outlet are formed; a valve body disposed in the valve chamber; and an urging unit that urges the valve body to the valve seat portion side. The valve seat portion includes a first valve seat portion disposed on the fluid inlet side of the valve chamber, and a second valve seat portion disposed on an outer periphery side of the first valve seat portion. The valve body includes a first seal portion capable of coming into close contact with the first valve seat portion, a second seal portion capable of coming into close contact with the second valve seat portion, and a first hinge portion and a second hinge portion each of which is a starting point of bending of the second seal portion.
    Type: Application
    Filed: July 27, 2017
    Publication date: July 18, 2019
    Inventors: Taisuke YAMAMOTO, Shinichiro MURAKAMI
  • Patent number: 10050262
    Abstract: Provided is a negative electrode for a non-aqueous electrolyte secondary battery, capable of improving the energy density and the cycle characteristics of the battery without lowering the initial charge/discharge efficiency of the battery. This negative electrode includes a negative electrode active material including a silicon oxide represented by SiOx and carbon material. A proportion of a mass of the silicon oxide relative to a total mass of the silicon oxide and the carbon material: y satisfies 0.03?y?0.3. A difference between a theoretical capacity density of the negative electrode active material and a charge capacity density of the negative electrode active material when a cutoff voltage is 5 mV relative to lithium metal: ?C (mAhg?1) satisfies L=?C/100 and 6y?L?12y+0.2.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: August 14, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANGEMENT CO., LTD.
    Inventors: Yuki Suehiro, Taisuke Yamamoto, Tatsuki Hiraoka, Katsumi Kashiwagi
  • Patent number: 10050274
    Abstract: A power storage device of the present invention includes a positive electrode, a negative electrode, and an electrolyte. At least one of the positive electrode and the negative electrode includes an organic compound as an active material having a portion contributing to an oxidation-reduction reaction. The organic compound is crystalline in both a charged state and a discharged state.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: August 14, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Nobuhiko Hojo, Yu Ohtsuka, Taisuke Yamamoto
  • Patent number: 9151098
    Abstract: A front cable and a rear cable are wound about a drum, are made to change direction by being caught onto a front pulley and a rear pulley, respectively, disposed on a center rail, and are respectively connected to a guide roller unit at respective terminals. The closing cable section of the front cable is routed to the outside of the center rail, the corresponding terminal being connected to the guide roller unit farther rearward than a load roller, and the opening cable section of the rear cable is routed to inside the center rail, the corresponding terminal being connected to the guide roller unit.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: October 6, 2015
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Katsuhisa Yamada, Tetsuya Ikeda, Masayuki Uchitsunemi, Taisuke Yamamoto
  • Patent number: 9153817
    Abstract: Disclosed is a lithium ion secondary battery including: a positive electrode including a positive electrode active material layer comprising a positive electrode active material capable of absorbing and releasing lithium ions, and a positive electrode current collector; a negative electrode including a negative electrode active material layer comprising an alloy-formable active material, and a negative electrode current collector; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The positive electrode active material layer has an easily swellable resin having a degree of swelling with the non-aqueous electrolyte of 20% or more, and the negative electrode active material layer has a hardly swellable resin having a degree of swelling with the non-aqueous electrolyte of less than 20%.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: October 6, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Tatsuki Hiraoka, Taisuke Yamamoto, Katsumi Kashiwagi, Masaya Ugaji
  • Patent number: 9132644
    Abstract: In a waste liquid container which is attachable and detachable to a recording portion including a liquid ejecting head which discharges a waste liquid and can store the waste liquid which is discharged from the liquid ejecting head in a state of being mounted on the recording portion, an engagement portion which protrudes from a side wall of the waste liquid container and is disposed lower in a vertical direction than a guide portion which is provided on the recording portion in the state of being mounted on the recording portion is provided.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: September 15, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Shuhei Harada, Masanori Nakata, Taisuke Yamamoto
  • Patent number: 9090068
    Abstract: There is provided a capping device having a bottomed box-shaped cap having an opening at one of ends of short side walls and long side walls formed in a ring shape and a bottom portion on the other side, the bottom portion is formed with a waste liquid disposal port configured to discharge liquid flowed therein from the opening and a rib extended so as to connect two opposing wall surfaces of the long side walls at a position overlapping at least partly with the waste liquid disposal port two-dimensionally when viewed from the side of the opening, and the rib including a communication hole configured to penetrate in the width direction intersecting the direction of extension of the rib and communicate with the waste liquid disposal port.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: July 28, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Naoyoshi Hashimoto, Takeo Seino, Taisuke Yamamoto, Hirokazu Ono
  • Publication number: 20150207141
    Abstract: The present invention provides a nonaqueous electrolyte secondary battery which can significantly improve battery characteristics by suppression of decrease in discharge capacity at an initial cycle stage and by improvement in high-temperature charge storage characteristics. A negative electrode for a nonaqueous electrolyte secondary battery has a negative electrode mixture layer including a negative electrode active material which contains SiOx (0.8?x?1.2) and graphite; and a negative electrode collector having at least one surface on which the negative electrode mixture layer is formed, and on the surface of the SiOx, a coating film derived from a compound having an isocyanate group is formed.
    Type: Application
    Filed: August 26, 2013
    Publication date: July 23, 2015
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Shun Nomura, Taisuke Yamamoto, Hidekazu Yamamoto, Atsushi Kaiduka, Naoki Imachi
  • Patent number: 8986882
    Abstract: The present invention relates to a current collector including a base portion with a flat face, primary projections projecting from the flat face, and secondary projections projecting from the top of the primary projections. The present invention also relates to a current collector including a base portion with a flat face and primary projections projecting from the flat face, wherein the roughening rate of the top of the primary projections is 3 to 20. By using such a current collector, separation of the active material from the current collector can be inhibited when using an active material that has a high capacity but undergoes a large expansion at the time of lithium ion absorption.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: March 24, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shuji Ito, Yasutaka Kogetsu, Kazuya Iwamoto, Kazuyoshi Honda, Taisuke Yamamoto, Yasuhiro Ueyama, Keisuke Ohara, Hitoshi Katayama
  • Publication number: 20150033503
    Abstract: A front cable and a rear cable are wound about a drum, are made to change direction by being caught onto a front pulley and a rear pulley, respectively, disposed on a center rail, and are respectively connected to a guide roller unit at respective terminals. The closing cable section of the front cable is routed to the outside of the center rail, the corresponding terminal being connected to the guide roller unit farther rearward than a load roller, and the opening cable section of the rear cable is routed to inside the center rail, the corresponding terminal being connected to the guide roller unit.
    Type: Application
    Filed: February 20, 2013
    Publication date: February 5, 2015
    Inventors: Katsuhisa Yamada, Tetsuya Ikeda, Masayuki Uchitsunemi, Taisuke Yamamoto
  • Publication number: 20140356723
    Abstract: Provided is a negative electrode for a non-aqueous electrolyte secondary battery, capable of improving the energy density and the cycle characteristics of the battery without lowering the initial charge/discharge efficiency of the battery. This negative electrode includes a negative electrode active material including a silicon oxide represented by SiOx and carbon material. A proportion of a mass of the silicon oxide relative to a total mass of the silicon oxide and the carbon material: y satisfies 0.03?y?0.3. A difference between a theoretical capacity density of the negative electrode active material and a charge capacity density of the negative electrode active material when a cutoff voltage is 5 mV relative to lithium metal: ?C (mAhg?1) satisfies L=?C/100 and 6y?L?12y+0.2.
    Type: Application
    Filed: December 28, 2012
    Publication date: December 4, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Yuki Suehiro, Taisuke Yamamoto, Tatsuki Hiraoka, Katsumi Kashiwagi
  • Publication number: 20140322591
    Abstract: Disclosed is a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode, a non-aqueous electrolyte, and a battery case containing them. The negative electrode includes SiOx where 0.5<x<1.5, and a carbon material. The non-aqueous electrolyte includes a halogenated cyclic carbonate. A ratio of mass b of the halogenated cyclic carbonate included in the non-aqueous electrolyte to mass a of the SiOx included in the negative electrode satisfies 0.001<b/a<3. A percentage of the SiOx to the total of the SiOx and the carbon material included in the negative electrode is preferably more than or equal to 3 mass % and less than 40 mass %.
    Type: Application
    Filed: December 27, 2012
    Publication date: October 30, 2014
    Inventors: Taisuke Yamamoto, Tatsuki Hiraoka, Keiichi Takahashi, Yoshiyuki Muraoka
  • Patent number: 8857949
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head having a nozzle formation surface with a nozzle that discharges a liquid. A cleaning member wipes the nozzle formation surface to remove liquid that has adhered thereto. An absorption member of a porous material deforms under pressure and includes an absorption surface that contacts the cleaning member to absorb liquid that has adhered thereto. A pressure member moves between a pressure position, in which the pressure member applies pressure to the absorption surface of the absorption member, and a non-pressure position, in which the pressure member does not apply pressure to the absorption surface. A movement mechanism moves the pressure member from the non-pressure position to the pressure position to cause the absorption member to deform, thereby dispersing the liquid absorbed by the absorption member from the cleaning member via the absorption surface into the interior of the absorption member.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: October 14, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Takeo Seino, Taisuke Yamamoto, Shuhei Harada, Naoyoshi Hashimoto, Yoshihiro Koizumi
  • Patent number: 8846245
    Abstract: A battery pack is provided, which includes a secondary battery; a molded body configured to store therein the secondary battery; and a foamable layer provided between the secondary battery and an inner surface of the molded body and configured to foam at a predetermined temperature or higher to form a foam heat insulating layer. With this, a heat insulating layer contained in the battery pack is thin in a normal state where the battery is not generating heat, and the heat insulating layer exerts a high heat insulating effect at the time of malfunction to suppress the temperature increase of a surface of the battery pack.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: September 30, 2014
    Assignee: Panasonic Corporation
    Inventors: Kazuya Iwamoto, Taisuke Yamamoto
  • Patent number: 8771874
    Abstract: The negative electrode for a lithium secondary battery includes: a current collector 11 having a plurality of bumps 11a on a surface thereof; a first active material layer formed on the current collector 11; and a second active material layer 15 disposed on the first active material layer 12 and including a plurality of active material particles 14. Each of the plurality of active material particles 14 is located on a corresponding bump 11a of the current collector 11, and each of the first active material layer 12 and the plurality of active material particles 14 has a chemical composition represented as SiOx (0<x<1).
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: July 8, 2014
    Assignee: Panasonic Corporation
    Inventors: Taisuke Yamamoto, Kazuya Iwamoto, Yasutaka Kogetsu
  • Patent number: 8673471
    Abstract: Provided is a highly safe portable electronic device having a secondary battery as a power source, and including a housing, an electronic device body housed in the housing, and a battery housing portion housed in the housing, in which a surface is inhibited from being locally heated to high temperature. In the portable electronic device, the battery housing portion is a molding with a battery fitting portion for fitting the secondary battery therein, and the battery fitting portion has provided on its surface a heat-insulating layer having a thickness of from 500 to 3000 ?m and a thermal conductivity of 0.2 W/m·K or lower.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: March 18, 2014
    Assignee: Panasonic Corporation
    Inventors: Tomohiko Yokoyama, Hideharu Takezawa, Kazuya Iwamoto, Taisuke Yamamoto
  • Patent number: 8602522
    Abstract: In a waste liquid container which is detachably mounted on a waste liquid container mounting portion including a device side connection terminal and a plate spring, the waste liquid container includes a waste liquid storing chamber which stores waste liquid, a first wall portion and a second wall portion which are disposed so as to face each other with the waste liquid storing chamber interposed therebetween, a container side connection terminal which is provided on an outer surface of the second wall portion and contacts the device side connection terminal at the time of being mounted on the waste liquid container mounting portion, and a positioning protrusion of the plate spring which is provided on the first wall portion so as to receive a biasing force which is applied from the first wall portion side toward the second wall portion side.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: December 10, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Shuhei Harada, Masanori Nakata, Taisuke Yamamoto
  • Patent number: 8586233
    Abstract: Provided is a highly safe portable electronic device having a secondary battery as a power source, and including a package, an electronic device body housed in the package, and a battery housing portion housed in the package, in which even if the content melts due to an extremely significant impact applied thereto, discharge of a melt is inhibited. In the portable electronic device, the battery housing portion is a molding with a battery fitting portion for fitting the secondary battery therein, and the battery fitting portion has a covering layer, which includes a temperature suppression layer and a block layer, provided on its surface.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: November 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Hideharu Takezawa, Tomohiko Yokoyama, Kazuya Iwamoto, Taisuke Yamamoto
  • Patent number: 8568925
    Abstract: A lithium secondary battery according to the present invention includes: a positive electrode having a positive-electrode active material capable of occluding and releasing lithium ions; a negative electrode having a negative-electrode active material capable of occluding and releasing lithium ions; a separator interposed between the positive electrode and the negative electrode; and an electrolyte having lithium-ion conductivity. The positive-electrode active material contains a nickel-type lithium-containing complex oxide. The negative-electrode active material contains a graphite-type material having a reversible capacity of 350 mAh/g or more and an irreversible capacity of 30 mAh/g or less. A ratio Qc/Qa between an irreversible capacity Qc per unit area in a portion of the positive electrode that opposes the negative electrode and an irreversible capacity Qa per unit area in a portion of the negative electrode that opposes the positive electrode is equal to or greater than 0.50 but less than 1.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: October 29, 2013
    Assignee: Panasonic Corporation
    Inventors: Taisuke Yamamoto, Hideharu Takezawa
  • Patent number: 8540341
    Abstract: A maintenance device includes: a tube pump which suctions internal spaces of a cap via each of suction passages; a selective blocking mechanism which has a slider that establishes engagement with a carriage in a movement midway area of the carriage positioned on the path of movement to a maintenance area and is moved by being linked with the carriage, selectively blocks the suction passages according to movement of the slider, and releases the engagement between the slider and the carriage while maintaining a blocked state of the selected suction passage; and a separation and approach movement unit which establishes and releases the engagement between the slider and the carriage by moving the slider to approach or be separated from the carriage.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: September 24, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Taisuke Yamamoto