Patents by Inventor Yu Yamamoto
Yu 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: 20210154818Abstract: A driving tool includes a striking mechanism configured to be actuated by a combustion pressure of a mixed gas of compressed air and fuel, a combustion chamber in which the mixed gas of compressed air and fuel is to be combusted, a valve member configured to open and close communication between the striking mechanism and the combustion chamber, and a valve support member configured to support the valve member. The valve member has a seal part provided on an outer peripheral surface along a moving direction of the valve member.Type: ApplicationFiled: February 3, 2021Publication date: May 27, 2021Applicant: MAX CO., LTD.Inventors: Eiichi WATANABE, Takashi YUKI, Yu YAMAMOTO, Mitsuhiro KIMURA
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Patent number: 11007629Abstract: A gas combustion type driving tool drives a fastener by combustion pressure when mixed gas of combustible gas and compressed air in a combustion chamber is ignited. The gas combustion type driving tool includes an air ejection valve, and a gas ejection valve. The air ejection valve is configured to eject compressed air into the combustion chamber. The gas ejection valve is configured to eject combustible gas into the combustion chamber. Output related to driving of a fastener is adjustable by adjusting at least one of filling pressure of compressed air or filling pressure of combustible gas.Type: GrantFiled: January 18, 2019Date of Patent: May 18, 2021Assignee: MAX CO., LTD.Inventors: Yu Yamamoto, Takashi Yuki, Eiichi Watanabe, Mitsuhiro Kimura
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Patent number: 10940579Abstract: A driving tool includes a striking mechanism configured to be actuated by a combustion pressure of a mixed gas of compressed air and fuel, a combustion chamber in which the mixed gas of compressed air and fuel is to be combusted, a valve member configured to open and close communication between the striking mechanism and the combustion chamber, and a valve support member configured to support the valve member. The valve member has a seal part provided on an outer peripheral surface along a moving direction of the valve member.Type: GrantFiled: January 18, 2019Date of Patent: March 9, 2021Assignee: MAX CO., LTD.Inventors: Eiichi Watanabe, Takashi Yuki, Yu Yamamoto, Mitsuhiro Kimura
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Patent number: 10898997Abstract: A driving tool includes a striking cylinder comprising a piston configured to be actuated by a combustion pressure of a mixed gas of compressed oxidant and fuel, a combustion chamber in which the mixed gas of compressed oxidant and fuel is to be combusted, an oxidant supply port for supplying the compressed oxidant into the combustion chamber, a fuel supply port for supplying the fuel into the combustion chamber, and a check valve provided to at least one of the oxidant supply port and the fuel supply port.Type: GrantFiled: January 18, 2019Date of Patent: January 26, 2021Assignee: MAX CO., LTD.Inventors: Yu Yamamoto, Takashi Yuki, Eiichi Watanabe, Mitsuhiro Kimura
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Patent number: 10867632Abstract: According to one embodiment, a magnetic disk device includes a disk, a head that writes data to the disk and reads data from the disk, and a controller that overwrites a second track on a first track in a first track group, and records a maximum first positioning error in a first direction from the first track to the second track in the first track in a nonvolatile first recording area.Type: GrantFiled: September 12, 2019Date of Patent: December 15, 2020Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage CorporationInventors: Yu Yamamoto, Makoto Asakura
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Publication number: 20200299538Abstract: The present invention provides a polyester resin having a self-emulsifying function which is able to form an aqueous emulsion without using any emulsifier and organic solvent. The present invention also provides a water dispersion, an aqueous adhesive, an aqueous ink, a laminate and a packaging material containing the above polyester resin, as well as a method for preparing the water dispersion.Type: ApplicationFiled: November 27, 2018Publication date: September 24, 2020Applicant: TOYOBO CO., LTD.Inventors: Naoko WATANABE, Yu YAMAMOTO, Hideki TANAKA
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Publication number: 20200294547Abstract: According to one embodiment, a magnetic disk device includes a disk, a head that writes data to the disk and reads data from the disk, and a controller that overwrites a second track on a first track in a first track group, and records a maximum first positioning error in a first direction from the first track to the second track in the first track in a nonvolatile first recording area.Type: ApplicationFiled: September 12, 2019Publication date: September 17, 2020Inventors: Yu Yamamoto, Makoto Asakura
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Publication number: 20190224831Abstract: A driving tool includes a combustion chamber, a cylinder, a valve and a control unit. Fuel and compressed air are supplied into the combustion chamber. The cylinder is configured to movably store a piston which is driven by combustion pressure at a time of igniting a mixture of the fuel and the compressed air filled in the combustion chamber. The valve is configured to open and close a passage through which the compressed air is supplied into the combustion chamber. The control unit is configured to control the valve to supply the compressed air into the combustion chamber when the control unit determines that a return of the piston is completed.Type: ApplicationFiled: January 18, 2019Publication date: July 25, 2019Applicant: MAX CO., LTD.Inventors: Yu YAMAMOTO, Takashi YUKI, Mitsuhiro KIMURA, Yasunori TAKAHASHI, Shuhei KURITA, Eiichi WATANABE
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Publication number: 20190224828Abstract: A driving tool includes a striking mechanism configured to be actuated by a combustion pressure of a mixed gas of compressed air and fuel, a combustion chamber in which the mixed gas of compressed air and fuel is to be combusted, a valve member configured to open and close communication between the striking mechanism and the combustion chamber, and a valve support member configured to support the valve member. The valve member has a seal part provided on an outer peripheral surface along a moving direction of the valve member.Type: ApplicationFiled: January 18, 2019Publication date: July 25, 2019Applicant: MAX CO., LTD.Inventors: Eiichi WATANABE, Takashi YUKI, Yu YAMAMOTO, Mitsuhiro KIMURA
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Publication number: 20190224832Abstract: A driving tool includes a striking cylinder including a piston configured to be actuated by a combustion pressure of a mixed gas of compressed oxidant and fuel, a combustion chamber in which the mixed gas of compressed oxidant and fuel is to be combusted; a valve member configured to open and close communication between the striking cylinder and the combustion chamber, and a striking cylinder exhaust valve configured to open and close communication between the striking cylinder and an outside.Type: ApplicationFiled: January 18, 2019Publication date: July 25, 2019Applicant: MAX CO., LTD.Inventors: Eiichi WATANABE, Mitsuhiro KIMURA, Takashi YUKI, Yu YAMAMOTO
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Publication number: 20190224833Abstract: A driving tool includes a striking cylinder including a piston configured to be actuated by a combustion pressure of a mixed gas of compressed oxidant and fuel, a combustion chamber in which the mixed gas of compressed oxidant and fuel is to be combusted, and an exhaust valve configured to be actuated by change in pressure in the striking cylinder from actuation of the piston.Type: ApplicationFiled: January 18, 2019Publication date: July 25, 2019Applicant: MAX CO., LTD.Inventors: Eiichi WATANABE, Mitsuhiro KIMURA, Takashi YUKI, Yu YAMAMOTO
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Publication number: 20190224826Abstract: A gas combustion type driving tool includes an output unit, a grip, a fuel container storage unit, a battery mounting unit and a coupler. The output unit includes a combustion chamber. The grip is connected to a lower surface of the output unit. A fuel container is detachably attached to the fuel container storage unit. A battery pack is detachably attached to the battery mounting unit. The coupler is configured to take air in. The fastener is driven out by combustion pressure when mixed gas of combustible gas supplied from the fuel container and compressed air supplied from outside via the coupler is ignited. The coupler is disposed on a lower end side of the grip. The gas combustion type driving tool includes a pipe configured to connect the coupler and the combustion chamber.Type: ApplicationFiled: January 18, 2019Publication date: July 25, 2019Applicant: MAX CO., LTD.Inventors: Yu YAMAMOTO, Takashi YUKI, Eiichi WATANABE, Mitsuhiro KIMURA
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Publication number: 20190224827Abstract: A gas combustion type driving tool drives a fastener by combustion pressure when mixed gas of combustible gas and compressed air in a combustion chamber is ignited. The gas combustion type driving tool includes an air ejection valve, and a gas ejection valve. The air ejection valve is configured to eject compressed air into the combustion chamber. The gas ejection valve is configured to eject combustible gas into the combustion chamber. Output related to driving of a fastener is adjustable by adjusting at least one of filling pressure of compressed air or filling pressure of combustible gas.Type: ApplicationFiled: January 18, 2019Publication date: July 25, 2019Applicant: MAX CO., LTD.Inventors: Yu YAMAMOTO, Takashi YUKI, Eiichi WATANABE, Mitsuhiro KIMURA
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Publication number: 20190224829Abstract: A driving tool includes a striking cylinder comprising a piston configured to be actuated by a combustion pressure of a mixed gas of compressed oxidant and fuel, a combustion chamber in which the mixed gas of compressed oxidant and fuel is to be combusted, an oxidant supply port for supplying the compressed oxidant into the combustion chamber, a fuel supply port for supplying the fuel into the combustion chamber, and a check valve provided to at least one of the oxidant supply port and the fuel supply port.Type: ApplicationFiled: January 18, 2019Publication date: July 25, 2019Applicant: MAX CO., LTD.Inventors: Yu YAMAMOTO, Takashi YUKI, Eiichi WATANABE, Mitsuhiro KIMURA
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Publication number: 20190224830Abstract: A driving tool includes a main body, a trigger, a contact member and a control unit. The main body has a combustion chamber configured to be filled with fuel and compressed air. The trigger is configured to operate an ignition device to combust a mixture of the fuel and the compressed air filled in the combustion chamber. The contact member is brought into contact with a driving target member to enable an operation of the trigger. The control unit is configured to start an injection of the fuel when the contact member is turned on, and to complete an injection of the air after the trigger is turned on.Type: ApplicationFiled: January 18, 2019Publication date: July 25, 2019Applicant: MAX CO., LTD.Inventors: Yu YAMAMOTO, Takashi YUKI, Mitsuhiro KIMURA, Yasunori TAKAHASHI, Shuhei KURITA
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Patent number: 10047533Abstract: A wire reel is detachably provided in a housing chamber of a binding machine body which binds a reinforcing bar. The wire reel includes a cylindrical hub portion which winds a wire, and a pair of parallel flanges overhanging outward from both external peripheral ends of the hub portions. A side wall inside the hub portion is formed of light-transmitting portions which allow the light from a transmissive photosensor provided in the binding machine body to be transmitted therethrough.Type: GrantFiled: January 23, 2017Date of Patent: August 14, 2018Assignee: MAX CO., LTD.Inventors: Yasushi Nakagawa, Kouji Katou, Tsuyoshi Kobayashi, Yu Yamamoto
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Patent number: 9821513Abstract: A polar functional group is added onto a surface of a metallic member. A resin member contains an adhesive functional group. The adhesive functional group and the polar functional group attract each other. A method for joining the metallic member and the resin member to each other includes: heating a junction between the metallic member and the resin member while pressing the metallic member and the resin member against each other with a first load; maintaining temperature of the junction higher than melting temperature of a resin that structures the resin member while pressing the metallic member and the resin member with each other with a second load smaller than the first load; and cooling the junction to temperature lower than the melting temperature while pressing the metallic member and the resin member against each other with a third load larger than the second load.Type: GrantFiled: September 15, 2014Date of Patent: November 21, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hideo Nakamura, Yoshinori Shibata, Tooru Sugiyama, Yu Yamamoto
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Publication number: 20170248098Abstract: A bridge member is installed in an opening of a water jacket, and a probe of a friction stir welding tool, which rotates about an axis parallel to a cylinder axis, is pressed against a central part of an upper surface of the bridge member. The probe is kept pressed against the central part of the upper surface for a predetermined time to cause side surfaces of the bridge member to expand and come into contact with both a cylinder wall and an outer wall. The probe is moved from the central part of the upper surface to the outer wall, or the cylinder wall, while the probe is kept pressed against the upper surface, thereby friction-stir welding the outer wall, or the cylinder wall, with the bridge member to each other, and after that, the probe is removed off the top deck.Type: ApplicationFiled: February 17, 2017Publication date: August 31, 2017Inventors: Yu YAMAMOTO, Keisuke UCHIDA
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Publication number: 20170130472Abstract: A wire reel is detachably provided in a housing chamber of a binding machine body which binds a reinforcing bar. The wire reel includes a cylindrical hub portion which winds a wire, and a pair of parallel flanges overhanging outward from both external peripheral ends of the hub portions. A side wall inside the hub portion is formed of light-transmitting portions which allow the light from a transmissive photosensor provided in the binding machine body to be transmitted therethrough.Type: ApplicationFiled: January 23, 2017Publication date: May 11, 2017Inventors: Yasushi NAKAGAWA, Kouji KATOU, Tsuyoshi KOBAYASHI, Yu YAMAMOTO
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Patent number: 9630802Abstract: A wire reel is detachably provided in a housing chamber of a binding machine body which binds a reinforcing bar. The wire reel includes a cylindrical hub portion which winds a wire, and a pair of parallel flanges overhanging outward from both external peripheral ends of the hub portions. A side wall inside the hub portion is formed of light-transmitting portions which allow the light from a transmissive photosensor provided in the binding machine body to be transmitted therethrough.Type: GrantFiled: May 14, 2009Date of Patent: April 25, 2017Assignee: MAX CO., LTD.Inventors: Yasushi Nakagawa, Kouji Katou, Tsuyoshi Kobayashi, Yu Yamamoto