Patents by Inventor Fumihiko Kitani
Fumihiko Kitani 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: 20160036301Abstract: An electric rotating machine includes an electric rotating machine body that cause a rotating body to rotate around an output axis, a rotation detecting device that detects rotation of the rotating body, and a braking device that stops rotation of the rotating body. The rotation detecting device includes a rotating portion that rotates in association with the rotating body. The rotating portion is arranged coaxially with the output axis. The braking device is arranged at a position shifted from the output axis of the rotating body.Type: ApplicationFiled: July 31, 2015Publication date: February 4, 2016Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Ryuichiro TOMINAGA, Fumihiko KITANI, Atsushi ICHIBANGASE
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Patent number: 8575795Abstract: A stator includes an annular substrate, an outer-diameter portion of the substrate provided at a tip end of an outer-diameter leg of a bobbin, the substrate having a smaller inner diameter than an inner diameter of the stator core. When stator resin provides sealing, the outer-diameter portion of the substrate can be supported by the tip end of the outer-diameter leg of the bobbin, and an inner-diameter portion of the substrate can be supported by a mold. Accordingly, even when the moment of inertia of a molded motor is increased, the substrate can be prevented from being deformed by a molding pressure with the stator resin, without the area of the substrate being decreased.Type: GrantFiled: July 8, 2009Date of Patent: November 5, 2013Assignee: Kabushiki Kaisha Yaskawa DenkiInventors: Kenichi Aoki, Fumihiko Kitani, Tomonori Hirose
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Publication number: 20090267424Abstract: A stator includes an annular substrate, an outer-diameter portion of the substrate provided at a tip end of an outer-diameter leg of a bobbin, the substrate having a smaller inner diameter than an inner diameter of the stator core. When stator resin provides sealing, the outer-diameter portion of the substrate can be supported by the tip end of the outer-diameter leg of the bobbin, and an inner-diameter portion of the substrate can be supported by a mold. Accordingly, even when the moment of inertia of a molded motor is increased, the substrate can be prevented from being deformed by a molding pressure with the stator resin, without the area of the substrate being decreased.Type: ApplicationFiled: July 8, 2009Publication date: October 29, 2009Applicant: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kenichi AOKI, Fumihiko Kitani, Tomonori Hirose
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Patent number: 5906177Abstract: An improved heating apparatus for a vehicle is disclosed. A water circuit circulates water to cool an engine. A viscous fluid type heater is disposed in a fluid circuit that is separately arranged from the water circuit. The heater has a heating chamber and a heat exchange chamber close to the heating chamber. The heat exchange chamber communicates with the fluid circuit. The heating chamber accommodates viscous fluid and a rotor rotatable to shear the viscous fluid for producing heat. The heat is transmitted to the heat exchange chamber from the heating chamber. The fluid in the heat exchange chamber is heated and flows to the fluid circuit.Type: GrantFiled: August 28, 1997Date of Patent: May 25, 1999Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeaisakushoInventors: Takanori Okabe, Takashi Ban, Fumihiko Kitani, Tsutomu Sato
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Patent number: 5901670Abstract: A variable heat generating viscous fluid type heat generator having a housing assembly including movable and fixed plate members arranged to define an axially bounded region in which a heat generating chamber is formed to have an axial width which is changed by the axial movement of the movable plate member with respect to the fixed plate member within the housing assembly by the controlled operation of the moving unit. The change in the axial width of the heat generating chamber causes a change in the gap size of a fluid filled gap between the outer face of the rotor element and the inner wall surface of the heat generating chamber and, accordingly, the heat generating performance of the viscous fluid type heat generator is adjustably varied.Type: GrantFiled: May 11, 1998Date of Patent: May 11, 1999Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Takahiro Moroi, Takashi Ban, Fumihiko Kitani, Tsutomu Sato, Hidefumi Mori, Tatsuyuki Hoshino
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Patent number: 5871149Abstract: A viscous fluid type heat generator including a housing assembly defining a heat generating chamber, a fluid storing chamber communicated through fluid passageway means with the heat generating chamber, and a heat receiving chamber for permitting a heat exchanging fluid to circulate therethrough to receive heat from the heat generating chamber. A rotor element is mounted on a drive shaft for rotation in the heat generating chamber with a gap defined between the inner wall surfaces of the heat generating chamber and the outer faces of the rotor element. The fluid passageway means includes a fluid withdrawing passageway for withdrawing the viscous fluid from the gap into the fluid storing chamber and a fluid supply passageway for supplying the viscous fluid from the fluid storing chamber into the gap.Type: GrantFiled: November 24, 1997Date of Patent: February 16, 1999Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Takahiro Moroi, Takashi Ban, Fumihiko Kitani, Tsutomu Sato
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Patent number: 5845608Abstract: A variable capacity type viscous heater is provided in which the capacity reduction is carried out securely, and which can inhibit a viscous fluid from deteriorating the endurable heat generation even after a long period of service. For instance, it includes a heat-generating chamber, a collector passage, a supply passage, and a control chamber, which are formed therein. The collector passage is communicated with a central region of the heat-generating chamber, and is capable of opening and closing. The supply passage is communicated with a lower region of the heat-generating chamber. The control chamber is communicated with the collector passage and the supply passage. A silicone oil, held in the heat-generating chamber, is collected into the control chamber by the Weissenberg effect by way of the opened collector passage, thereby carrying out the capacity reduction.Type: GrantFiled: June 30, 1997Date of Patent: December 8, 1998Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Takashi Ban, Hidefumi Mori, Kiyoshi Yagi, Tatsuya Hirose, Takahiro Moroi, Sigeru Suzuki, Shintaro Miura, Tsutomu Sato, Fumihiko Kitani
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Patent number: 5788151Abstract: A viscous fluid type heat generator includes a housing assembly defining a heat generating chamber and a heat receiving chamber for permitting a heat exchanging fluid to circulate therethrough to receive heat from the heat generating chamber. A rotor element is supported by the housing assembly separately from the drive shaft to be rotationally driven by the drive shaft for rotation within the heat generating chamber. A viscous fluid is held in a gap defined between the inner wall surfaces of the heat generating chamber and the outer faces of the rotor element, for heat generation under a shearing stress applied by the rotation of the rotor element. Frictional coupling means are provided for frictionally coupling the drive shaft with the rotor element and for mechanically transmitting a rotation of the drive shaft to the rotor element to permit the rotor element to rotate in the heat generating chamber at a speed not higher than a predetermined thermal limit speed.Type: GrantFiled: October 7, 1997Date of Patent: August 4, 1998Assignee: Kabushiki Kaisha Toyoda Jidoshokki SeisakushoInventors: Takahiro Moroi, Takashi Ban, Fumihiko Kitani, Tsutomu Sato
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Patent number: 5065588Abstract: An air-conditioner system having a compressor, a plurality of heat exchangers for heating or cooling the air in a room, a radiator for transferring heat energy of refrigerant outside of the room, a plurality of orifices, a manifold with a main port and a plurality of sub-ports, flow direction control multi-port valves directing the flow of the refrigerant from the compressor to the main port and not from the main port to the compressor when at least one of the heat-exchangers is heating the room. The refrigerant does not flow from the compressor to the radiator when at least one of the heat exchangers is heating and none of the heat exchangers is cooling. Also, it does not flow from the compressor to the main port but flows instead from the compressor to the radiator and from the main port to the compressor when none of the heat exchangers is heating and at least one of the heat exchangers is cooling.Type: GrantFiled: August 9, 1990Date of Patent: November 19, 1991Assignee: Hitachi, Ltd.Inventors: Susumu Nakayama, Kensaku Oguni, Hiromu Yasuda, Rumi Minakata, Kazumoto Urata, Masatoshi Muramatsu, Kenji Tokusa, Takao Senshu, Hirokiyo Terada, Fumihiko Kitani
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Patent number: 4758750Abstract: A linear motor of moving-coil type is disclosed, in which a multi-phase moving coil includes a plurality of flat coil units each not wider than the longitudinal length of a permanent magnet making up a stationary part divided by the number of coil phases, the flat coil units being arranged successively in the same plane with central parts not adjacently overlaid one on the other. The central parts of the moving flat coil units have a thickness equivalent to a single phase in spite of the multiple phases of the moving coil. Thus a great electromagnetic force is generated, and at the same time a high propulsive force is obtained with the magnetic flux density not reduced in the gap accomodating one phase of coils alone.Type: GrantFiled: February 12, 1987Date of Patent: July 19, 1988Assignee: Hitachi, Ltd.Inventors: Masato Itagaki, Susumu Nakayama, Katsuaki Kikuchi, Yosio Haeda, Teruo Umehara, Fumihiko Kitani