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).
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Publication number: 20190219182Abstract: 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: ApplicationFiled: July 27, 2017Publication date: July 18, 2019Inventors: Taisuke YAMAMOTO, Shinichiro MURAKAMI
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Patent number: 10050274Abstract: 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: GrantFiled: May 11, 2007Date of Patent: August 14, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Nobuhiko Hojo, Yu Ohtsuka, Taisuke Yamamoto
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Patent number: 10050262Abstract: 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: GrantFiled: December 28, 2012Date of Patent: August 14, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANGEMENT CO., LTD.Inventors: Yuki Suehiro, Taisuke Yamamoto, Tatsuki Hiraoka, Katsumi Kashiwagi
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Patent number: 9151098Abstract: 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: GrantFiled: February 20, 2013Date of Patent: October 6, 2015Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Katsuhisa Yamada, Tetsuya Ikeda, Masayuki Uchitsunemi, Taisuke Yamamoto
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Patent number: 9153817Abstract: 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: GrantFiled: April 26, 2011Date of Patent: October 6, 2015Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tatsuki Hiraoka, Taisuke Yamamoto, Katsumi Kashiwagi, Masaya Ugaji
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Patent number: 9132644Abstract: 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: GrantFiled: March 16, 2012Date of Patent: September 15, 2015Assignee: Seiko Epson CorporationInventors: Shuhei Harada, Masanori Nakata, Taisuke Yamamoto
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Patent number: 9090068Abstract: 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: GrantFiled: December 13, 2011Date of Patent: July 28, 2015Assignee: Seiko Epson CorporationInventors: Naoyoshi Hashimoto, Takeo Seino, Taisuke Yamamoto, Hirokazu Ono
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Publication number: 20150207141Abstract: 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: ApplicationFiled: August 26, 2013Publication date: July 23, 2015Applicant: SANYO ELECTRIC CO., LTD.Inventors: Shun Nomura, Taisuke Yamamoto, Hidekazu Yamamoto, Atsushi Kaiduka, Naoki Imachi
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Patent number: 8986882Abstract: 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: GrantFiled: December 26, 2007Date of Patent: March 24, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shuji Ito, Yasutaka Kogetsu, Kazuya Iwamoto, Kazuyoshi Honda, Taisuke Yamamoto, Yasuhiro Ueyama, Keisuke Ohara, Hitoshi Katayama
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Publication number: 20150033503Abstract: 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: ApplicationFiled: February 20, 2013Publication date: February 5, 2015Inventors: Katsuhisa Yamada, Tetsuya Ikeda, Masayuki Uchitsunemi, Taisuke Yamamoto
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Publication number: 20140356723Abstract: 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: ApplicationFiled: December 28, 2012Publication date: December 4, 2014Applicant: PANASONIC CORPORATIONInventors: Yuki Suehiro, Taisuke Yamamoto, Tatsuki Hiraoka, Katsumi Kashiwagi
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Publication number: 20140322591Abstract: 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: ApplicationFiled: December 27, 2012Publication date: October 30, 2014Inventors: Taisuke Yamamoto, Tatsuki Hiraoka, Keiichi Takahashi, Yoshiyuki Muraoka
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Patent number: 8857949Abstract: 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: GrantFiled: March 17, 2010Date of Patent: October 14, 2014Assignee: Seiko Epson CorporationInventors: Takeo Seino, Taisuke Yamamoto, Shuhei Harada, Naoyoshi Hashimoto, Yoshihiro Koizumi
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Patent number: 8846245Abstract: 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: GrantFiled: August 31, 2009Date of Patent: September 30, 2014Assignee: Panasonic CorporationInventors: Kazuya Iwamoto, Taisuke Yamamoto
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Patent number: 8771874Abstract: 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: GrantFiled: March 13, 2008Date of Patent: July 8, 2014Assignee: Panasonic CorporationInventors: Taisuke Yamamoto, Kazuya Iwamoto, Yasutaka Kogetsu
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Patent number: 8673471Abstract: 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: GrantFiled: September 18, 2009Date of Patent: March 18, 2014Assignee: Panasonic CorporationInventors: Tomohiko Yokoyama, Hideharu Takezawa, Kazuya Iwamoto, Taisuke Yamamoto
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Patent number: 8602522Abstract: 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: GrantFiled: March 16, 2012Date of Patent: December 10, 2013Assignee: Seiko Epson CorporationInventors: Shuhei Harada, Masanori Nakata, Taisuke Yamamoto
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Patent number: 8586233Abstract: 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: GrantFiled: September 18, 2009Date of Patent: November 19, 2013Assignee: Panasonic CorporationInventors: Hideharu Takezawa, Tomohiko Yokoyama, Kazuya Iwamoto, Taisuke Yamamoto
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Patent number: 8568925Abstract: 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: GrantFiled: May 12, 2011Date of Patent: October 29, 2013Assignee: Panasonic CorporationInventors: Taisuke Yamamoto, Hideharu Takezawa
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Patent number: 8540341Abstract: 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: GrantFiled: March 1, 2012Date of Patent: September 24, 2013Assignee: Seiko Epson CorporationInventor: Taisuke Yamamoto