Patents by Inventor Tomohiko Nishiyama
Tomohiko Nishiyama 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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Patent number: 11597138Abstract: A high-pressure tank producing apparatus capable of reducing time for increasing temperature of a tank body. The apparatus that heats the tank body with fibers impregnated with a thermosetting resin wound around its surface includes a heating chamber for housing the tank body and a retaining mechanism for retaining the tank body within the heating chamber, in which the heating chamber has an injection port for injecting heated gas onto the surface of the tank body and an exhaust port for discharging the gas to the outside of the heating chamber, the exhaust port being disposed in a position where the injection port is projected in a gas injecting direction, and the retaining mechanism retains the tank body in a region where the injection and exhaust ports overlap with each other as viewed from the gas injecting direction and in a position between the injection and exhaust ports.Type: GrantFiled: December 22, 2020Date of Patent: March 7, 2023Assignee: Toyota Jidosha Kabushiki KaishaInventor: Tomohiko Nishiyama
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Publication number: 20220299161Abstract: A method for manufacturing a high-pressure tank includes an arrangement step of arranging, in a cavity of a mold, an intermediate including a liner and a fiber bundle wound around the liner, and an impregnation step of impregnating the fiber bundle with a molten resin in the cavity by increasing a pressure on the molten resin injected into the cavity. The impregnation step includes a pressure increasing step of increasing an internal pressure of the intermediate when increasing the pressure on the molten resin.Type: ApplicationFiled: March 14, 2022Publication date: September 22, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tomohiko NISHIYAMA
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Publication number: 20210237338Abstract: A high-pressure tank producing apparatus capable of reducing time for increasing temperature of a tank body. The apparatus that heats the tank body with fibers impregnated with a thermosetting resin wound around its surface includes a heating chamber for housing the tank body and a retaining mechanism for retaining the tank body within the heating chamber, in which the heating chamber has an injection port for injecting heated gas onto the surface of the tank body and an exhaust port for discharging the gas to the outside of the heating chamber, the exhaust port being disposed in a position where the injection port is projected in a gas injecting direction, and the retaining mechanism retains the tank body in a region where the injection and exhaust ports overlap with each other as viewed from the gas injecting direction and in a position between the injection and exhaust ports.Type: ApplicationFiled: December 22, 2020Publication date: August 5, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tomohiko NISHIYAMA
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Patent number: 10926310Abstract: Provided is an endless metal ring manufacturing method for manufacturing an endless metal ring by carrying out a barrel polishing step for polishing the endless metal ring by using a barrel of a resin material, a rolling step for rolling the endless metal ring which was cleaned, and a nitriding step for nitriding the endless metal ring which was rolled, wherein after the barrel polishing step and before the rolling step, provided is a resin removing step for removing resin that has adhered to the endless metal ring.Type: GrantFiled: September 13, 2018Date of Patent: February 23, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mitsue Koga, Tomohiko Nishiyama
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Patent number: 10843245Abstract: Provided is an endless metal ring manufacturing method for manufacturing an endless metal ring by carrying out a barrel polishing step for polishing the endless metal ring by using a barrel of a resin material, a rolling step for rolling the endless metal ring which was cleaned, and a nitriding step for nitriding the endless metal ring which was rolled, wherein after the barrel polishing step and before the rolling step, provided is a resin removing step for removing resin that has adhered to the endless metal ring.Type: GrantFiled: September 13, 2018Date of Patent: November 24, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mitsue Koga, Tomohiko Nishiyama
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Publication number: 20190009317Abstract: Provided is an endless metal ring manufacturing method for manufacturing an endless metal ring by carrying out a barrel polishing step for polishing the endless metal ring by using a barrel of a resin material, a rolling step for rolling the endless metal ring which was cleaned, and a nitriding step for nitriding the endless metal ring which was rolled, wherein after the barrel polishing step and before the rolling step, provided is a resin removing step for removing resin that has adhered to the endless metal ring.Type: ApplicationFiled: September 13, 2018Publication date: January 10, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mitsue KOGA, Tomohiko Nishiyama
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Publication number: 20190009316Abstract: Provided is an endless metal ring manufacturing method for manufacturing an endless metal ring by carrying out a barrel polishing step for polishing the endless metal ring by using a barrel of a resin material, a rolling step for rolling the endless metal ring which was cleaned, and a nitriding step for nitriding the endless metal ring which was rolled, wherein after the barrel polishing step and before the rolling step, provided is a resin removing step for removing resin that has adhered to the endless metal ring.Type: ApplicationFiled: September 13, 2018Publication date: January 10, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mitsue Koga, Tomohiko Nishiyama
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Patent number: 10088013Abstract: A manufacturing method includes, cutting out a plurality of rings, polishing the rings, adjusting the plurality of rings so that they exhibit circumferential lengths respectively predetermined for them, nitriding the plurality of rings, and assembling in order to layer the plurality of rings into a multi-layered ring; wherein after the rings are cut out from the pipe, each of them is polished one by one so that their order is not changed; in nitriding, they are subjected to a nitriding process in a state where they are set in a jig in order to keep their order; and in assembling, the rings are assembled so that rings that were parts originally adjacent to each other in a state of the pipe become layers that are adjacent to each other in the multi-layered ring.Type: GrantFiled: May 14, 2014Date of Patent: October 2, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomohiko Nishiyama, Akira Takashima, Takeshi Umeda
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Publication number: 20160138674Abstract: A manufacturing method includes, cutting out a plurality of rings, polishing the rings, adjusting the plurality of rings so that they exhibit circumferential lengths respectively predetermined for them, nitriding the plurality of rings, and assembling in order to layer the plurality of rings into a multi-layered ring; wherein after the rings are cut out from the pipe, each of them is polished one by one so that their order is not changed; in nitriding, they are subjected to a nitriding process in a state where they are set in a jig in order to keep their order; and in assembling, the rings are assembled so that rings that were parts originally adjacent to each other in a state of the pipe become layers that are adjacent to each other in the multi-layered ring.Type: ApplicationFiled: May 14, 2014Publication date: May 19, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomohiko NISHIYAMA, Akira TAKASHIMA, Takeshi UMEDA
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Publication number: 20160059288Abstract: Provided is an endless metal ring manufacturing method for manufacturing an endless metal ring by carrying out a barrel polishing step for polishing the endless metal ring by using a barrel of a resin material, a rolling step for rolling the endless metal ring which was cleaned, and a nitriding step for nitriding the endless metal ring which was rolled, wherein after the barrel polishing step and before the rolling step, provided is a resin removing step for removing resin that has adhered to the endless metal ring.Type: ApplicationFiled: May 13, 2013Publication date: March 3, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mitsue KOGA, Tomohiko NISHIYAMA
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Patent number: 6079976Abstract: A pilot air passage, a pilot fuel passage and a main fuel passage are formed in a gun head for supplying pilot air and fuel. At least one of a flow amount detecting orifice, a flow amount adjusting needle valve and a pressure detecting plug is provided in each of the pilot air passage, the pilot fuel passage and the main fuel passage and is coupled to the gun head so as to be handled together with the gun head. A pilot air tube, a pilot fuel tube and a main fuel tube are constructed in the form of a triplet tube.Type: GrantFiled: May 21, 1997Date of Patent: June 27, 2000Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tomohiko Nishiyama, Yusei Kusaka, Kazuhisa Mitani
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Patent number: 6042371Abstract: A combustion apparatus includes a combustion chamber and a single-type regenerative combustion burner. The burner is arranged with respect to the combustion chamber so that a direction in which burnt gas returns to the burner is not opposed to a direction in which fuel and supply air are expelled from the burner. This combustion apparatus is applicable to various types of industrial furnaces including various types of boilers, for example, a crucible-type furnace.Type: GrantFiled: July 18, 1997Date of Patent: March 28, 2000Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazuhisa Mitani, Yusei Kusaka, Yukio Fukuta, Tomohiko Nishiyama
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Patent number: 5957462Abstract: A seal structure includes a stationary member, a rotatable member disposed within the stationary member to divide an interior of the stationary member into two chambers, a seal member mildly pressed to the stationary member and the rotatable member, and a recess for collecting grease, formed in the rotatable member. The seal structure can be used as a seal between a rotatable member and a stationary member of an air supply and gas exhaust switching mechanism of a regenerative combustion burner.Type: GrantFiled: May 15, 1997Date of Patent: September 28, 1999Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tomohiko Nishiyama, Kazuhisa Mitani
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Patent number: 5938423Abstract: A combustion control method includes the steps of providing an oxygen sensor within a furnace or at a flue of the furnace, detecting an oxygen concentration of exhaust gas, and controlling an air ratio. A regenerative combustion apparatus includes a regenerative combustion burner, an oxygen sensor disposed in an air supply and gas exhaust passage of the burner. A combustion control method and apparatus includes the steps of switching an electrical voltage imposed on an oxygen sensor between a first electrical voltage and a second electrical voltage near 0 V, conducting an air ratio control when the imposed voltage is at the first voltage and monitoring unburnt components included in exhaust gas when the imposed voltage is at the second voltage.Type: GrantFiled: May 21, 1997Date of Patent: August 17, 1999Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tomohiko Nishiyama, Kazuhisa Mitani, Yukio Fukuta
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Patent number: 5846067Abstract: In combustion using air preheated by regenerative direct heat exchange between exhaust gas and the combustion air using a regenerator as a heat exchange medium, the present invention relates to a low-NOx burner that is effective for reduction in NOx in a mid-temperature range which has been conventionally difficult to be realized and improves stability of the flame. According to this low-NOx burner, at an outlet of an air throat 24 for flowing a full quantity of the combustion air is disposed a burner tile 22 having an enlarged diameter portion 23 thereof whose diameter is larger than that of the outlet, and a fuel nozzle 19 for injecting the fuel from the enlarged diameter portion 23 of the burner tile is also provided.Type: GrantFiled: January 15, 1997Date of Patent: December 8, 1998Assignees: Toyota Jidosha Kabushiki Kaisha, Nippon Furnace Koayo Kabushiki KaishaInventors: Tomohiko Nishiyama, Kazuhisa Mitani, Ryoichi Tanaka, Mamoru Matsuo
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Patent number: 5628629Abstract: An industrial furnace and a burner for regenerative combustion includes a heat storage member, a switching mechanism disposed on one end of the heat storage member, and a burner tile disposed on the opposite end of the heat storage member. The burner tile has a protruding portion extending ahead an air supply and gas exhaust surface. The switching mechanism has a stationary disk and a rotatable disk which slidably contacts the stationary disk. A speed of supply air to the furnace is in operation equal to or higher than a speed of exhaust air therefrom.Type: GrantFiled: October 11, 1995Date of Patent: May 13, 1997Assignees: Toyota Jidosha Kabushiki Kaisha, Nippon Furnace Kogyo Kaisha, Ltd.Inventors: Kazuhisa Mitani, Tomohiko Nishiyama, Ryoichi Tanaka