Patents by Inventor Tatsuya Furukawa
Tatsuya Furukawa 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: 11962433Abstract: A switch device includes a plurality of communication ports; a switch unit configured to relay a frame, which has been transmitted from a function unit and to which information including an ID of a VLAN is added, to another function unit via a communication port; and a duplication unit configured to, when the diagnosis device is connected to another switch device, duplicate the frame to be relayed via a designated communication port among the plurality of communication ports, and generate a duplicate frame for diagnosis that is a frame obtained by adding, to a duplicate frame obtained through the duplication, specific information indicating that the duplicate frame for diagnosis should be transmitted to the diagnosis device. The switch unit outputs the duplicate frame for diagnosis generated by the duplication unit from a communication port corresponding to the other switch device.Type: GrantFiled: February 2, 2021Date of Patent: April 16, 2024Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., AUTONETWORKS TECHNOLOGIES, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akihito Iwata, Tatsuya Izumi, Hirofumi Urayama, Tadashi Matsumoto, Darmawan Go, Hideki Maeda, Takeshi Hagihara, Masashi Amesara, Hisashi Furukawa, Shu Ishizuka, Hideki Goto
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Patent number: 11936309Abstract: A permanent-magnet-synchronous electric motor control device includes: a reference voltage value calculation unit for calculating a reference voltage value; an output voltage value calculation unit for calculating an output voltage value on the basis of a voltage command; a current weakening command calculation unit for calculating a current weakening command on the basis of the reference voltage value and the output voltage value; a voltage command calculation unit for calculating the voltage command on the basis of the current weakening command; and a power converter for supplying power to a permanent-magnet-synchronous electric motor on the basis of the voltage command. The current weakening command calculation unit calculates the current weakening command in which a high-frequency component is amplified on the basis of the difference between the reference voltage value and the output voltage value.Type: GrantFiled: May 22, 2020Date of Patent: March 19, 2024Assignee: Mitsubishi Electric CorporationInventors: Yuya Tsuchimoto, Tatsuya Mori, Akira Furukawa, Isao Kezobo, Genki Fujii
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Patent number: 11376891Abstract: A tyre for winter comprises a tread portion 2 having a first tread edge (Te1) and a second tread edge (Te2) and sipes 40 provided in at least a part of the tread portion 2. The tread portion 2 is provided with a plurality of first oblique grooves (10A) each extending obliquely from the first tread edge (Te1) toward the second tread edge (Te2). Each of the first oblique grooves (10A) has an inner end (10a) terminating between a tyre equator (C) and the second tread edge (Te2). The inner end (10a) is not connected with other grooves.Type: GrantFiled: February 20, 2019Date of Patent: July 5, 2022Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Tatsuya Furukawa
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Patent number: 11066715Abstract: A dehydrogenation processing method for a turbine blade of a steam turbine. The method includes a step of heating the turbine blade by suppling heating steam into a casing of the steam turbine after a steam turbine plant is stopped. The heating steam supplied to the casing has a temperature that is higher than steam passing through the turbine blade during operation of the steam turbine plant. The method further includes repeating the process of supplying the heating steam into the casing a multiple of times.Type: GrantFiled: March 6, 2017Date of Patent: July 20, 2021Assignee: MITSUBISHI POWER, LTD.Inventors: Yuichi Shimizu, Tatsuya Furukawa, Ryuichi Matsubara, Kenji Sato
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Publication number: 20190263187Abstract: A tyre for winter comprises a tread portion 2 having a first tread edge (Te1) and a second tread edge (Te2) and sipes 40 provided in at least a part of the tread portion 2. The tread portion 2 is provided with a plurality of first oblique grooves (10A) each extending obliquely from the first tread edge (Te1) toward the second tread edge (Te2). Each of the first oblique grooves (10A) has an inner end (10a) terminating between a tyre equator (C) and the second tread edge (Te2). The inner end (10a) is not connected with other grooves.Type: ApplicationFiled: February 20, 2019Publication date: August 29, 2019Applicant: Sumitomo Rubber Industries, Ltd.Inventor: Tatsuya FURUKAWA
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Publication number: 20190100817Abstract: A dehydrogenation processing method for a turbine blade of a steam turbine includes: a step of heating the turbine blade by supplying heating steam into a casing of the steam turbine when a steam turbine plant is started or stopped.Type: ApplicationFiled: March 6, 2017Publication date: April 4, 2019Inventors: Yuichi SHIMIZU, Tatsuya FURUKAWA, Ryuichi MATSUBARA, Kenji SATO
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Patent number: 9982545Abstract: The precipitation hardened martensitic stainless steel is characterized by containing, in percent by weight, 12.25 to 14.25% Cr, 7.5 to 8.5% Ni, 1.0 to 2.5% Mo, 0.05% or less C, 0.2% or less Si, 0.4% or less Mn, 0.03% or less P, 0.005% or less S, 0.008% or less N, 0.90 to 2.25% Al, the balance substantially being Fe, and the total content of Cr and Mo being 14.25 to 16.75%. A turbine moving blade and a steam turbine are manufactured by using this martensitic stainless steel.Type: GrantFiled: July 14, 2015Date of Patent: May 29, 2018Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Yuichi Hirakawa, Yoshikuni Kadoya, Hiroharu Ooyama, Tatsuya Furukawa, Naoto Tochitani
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Patent number: 9753192Abstract: A reflector that is used for adjusting a radiation direction of a radiation unit in a position detection apparatus that performs a process based on a detected position of reflected light of light radiated from the radiation unit includes a first reflection surface that reflects the light radiated from the radiation unit, and a second reflection surface that intersects with the first reflection surface and reflects the light radiated from the radiation unit.Type: GrantFiled: January 16, 2015Date of Patent: September 5, 2017Assignee: SEIKO EPSON CORPORATIONInventor: Tatsuya Furukawa
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Patent number: 9733726Abstract: A projector acquires the distance from the projector to a screen. When the acquired distance is short, the projector increases the shutter speed of an electronic shutter of an imaging section, whereas when the acquired distance is long, the projector decreases the shutter speed of the electronic shutter of the imaging section. A pointer outputs infrared light for a predetermined period, and the imaging section of the projector captures the infrared light outputted by the pointer at the set shutter speed and identifies the position of the pointer.Type: GrantFiled: November 18, 2015Date of Patent: August 15, 2017Assignee: Seiko Epson CorporationInventor: Tatsuya Furukawa
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Patent number: 9675234Abstract: A sealability acquiring mechanism disposed in a medical apparatus has a raising base unit constituted of a raising base operating mechanism, a raising tube path portion, a guide tube and a raising base. In the raising tube path portion, there is disposed a sealing member that is water-tightly or air-tightly fixed to a wire fixing portion to be connected to a raising wire inserted into an outer peripheral member and the outer peripheral member, a fluid supplied from an opening of the outer peripheral member flows between an inner peripheral surface of a raising tube path and an outer peripheral surface of the sealing member, and the raising base operating mechanism is water-tightly or air-tightly separated from the raising tube path.Type: GrantFiled: February 4, 2016Date of Patent: June 13, 2017Assignee: OLYMPUS CORPORATIONInventors: Masayo Tsumaru, Toshio Nakamura, Tatsuya Furukawa, Koji Yamaya, Seiji Saito, Tetsuhiro Yamada, Kahori Yasunaga
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Patent number: 9404373Abstract: A turbine-blade retaining structure in which deformation of end portions of locking pieces exposed through an insertion window portion in the axial direction is prevented, and the occurrence of a crack in a welded portion is prevented. At least one of the end portions of adjacent locking pieces exposed through the insertion window portion is provided with a thick-plate portion that expands in the disc-thickness direction so as to be inside the insertion window portion.Type: GrantFiled: January 28, 2013Date of Patent: August 2, 2016Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.Inventors: Keita Kimura, Yuki Enomoto, Tatsuya Furukawa
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Publication number: 20160154472Abstract: A projector acquires the distance from the projector to a screen. When the acquired distance is short, the projector increases the shutter speed of an electronic shutter of an imaging section, whereas when the acquired distance is long, the projector decreases the shutter speed of the electronic shutter of the imaging section. A pointer outputs infrared light for a predetermined period, and the imaging section of the projector captures the infrared light outputted by the pointer at the set shutter speed and identifies the position of the pointer.Type: ApplicationFiled: November 18, 2015Publication date: June 2, 2016Inventor: Tatsuya Furukawa
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Publication number: 20160150946Abstract: A sealability acquiring mechanism disposed in a medical apparatus has a raising base unit constituted of a raising base operating mechanism, a raising tube path portion, a guide tube and a raising base. In the raising tube path portion, there is disposed a sealing member that is water-tightly or air-tightly fixed to a wire fixing portion to be connected to a raising wire inserted into an outer peripheral member and the outer peripheral member, a fluid supplied from an opening of the outer peripheral member flows between an inner peripheral surface of a raising tube path and an outer peripheral surface of the sealing member, and the raising base operating mechanism is water-tightly or air-tightly separated from the raising tube path.Type: ApplicationFiled: February 4, 2016Publication date: June 2, 2016Applicant: OLYMPUS CORPORATIONInventors: Masayo TSUMARU, Toshio NAKAMURA, Tatsuya FURUKAWA, Koji YAMAYA, Seiji SAITO, Tetsuhiro YAMADA, Kahori YASUNAGA
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Publication number: 20150315921Abstract: The precipitation hardened martensitic stainless steel is characterized by containing, in percent by weight, 12.25 to 14.25% Cr, 7.5 to 8.5% Ni, 1.0 to 2.5% Mo, 0.05% or less C, 0.2% or less Si, 0.4% or less Mn, 0.03% or less P, 0.005% or less S, 0.008% or less N, 0.90 to 2.25% Al, the balance substantially being Fe, and the total content of Cr and Mo being 14.25 to 16.75%. A turbine moving blade and a steam turbine are manufactured by using this martensitic stainless steel.Type: ApplicationFiled: July 14, 2015Publication date: November 5, 2015Inventors: Yuichi HIRAKAWA, Yoshikuni KADOYA, Hiroharu OOYAMA, Tatsuya FURUKAWA, Naoto TOCHITANI
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Publication number: 20150204659Abstract: A reflector that is used for adjusting a radiation direction of a radiation unit in a position detection apparatus that performs a process based on a detected position of reflected light of light radiated from the radiation unit includes a first reflection surface that reflects the light radiated from the radiation unit, and a second reflection surface that intersects with the first reflection surface and reflects the light radiated from the radiation unit.Type: ApplicationFiled: January 16, 2015Publication date: July 23, 2015Inventor: Tatsuya FURUKAWA
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Patent number: 8303487Abstract: An endoscope 2 includes an insertion body 3 equipped with a potentiometer 26 for detecting a bending state of a bending portion 3B which is allowed to be bent and inserted into a subject and an electric connector 18c for outputting an electric signal as a detection result of the potentiometer 26, and a motor unit 4 detachable with respect to the insertion body 3 via an attachment/detachment portion 14, which is equipped with an electric motor 23 for bending the bending portion 3B.Type: GrantFiled: May 31, 2007Date of Patent: November 6, 2012Assignee: Olympus CorporationInventors: Haruhiko Ueno, Tatsuya Ishizuka, Yuichi Ikeda, Tatsuya Furukawa, Yutaka Masaki, Masanobu Koitabashi, Noriaki Kanazawa
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Patent number: 8000915Abstract: An apparatus for accurately estimating the SOC of a rechargeable battery installed in a hybrid electric vehicle. A voltage variation measurement unit measures terminal voltage variation amount of the rechargeable battery in a no-battery-current state in which a charge-discharge current does not flow in the rechargeable battery. A polarization voltage calculator calculates a polarization voltage from the measured variation amount. An electromotive force calculator subtracts the polarization voltage from a non-load voltage in a state in which a charge-discharge path is open to calculate the electromotive force of the rechargeable battery. An SOC estimator estimates the SOC of the rechargeable battery based on the electromotive force.Type: GrantFiled: April 20, 2009Date of Patent: August 16, 2011Assignee: Panasonic EV Energy Co., Ltd.Inventors: Tatsuya Furukawa, Naoto Sato
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Patent number: 7828723Abstract: A power driven bending endoscope with detachable insertion portion 2 is formed of an insertion body 3 having a flexible bending portion 3B, and a motor unit 4 having an electric motor 23 for driving to bend the bending portion 3B and a potentiometer 26 for detecting a bending state of the bending portion 3B, which are detachably coupled.Type: GrantFiled: June 1, 2007Date of Patent: November 9, 2010Assignee: Olympus CorporationInventors: Haruhiko Ueno, Yuichi Ikeda, Tatsuya Ishizuka, Tatsuya Furukawa, Yutaka Masaki, Masanobu Koitabashi, Noriaki Kanazawa
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Patent number: 7814325Abstract: A method of certifying the existence of electronic information released on a network at a time and date. The network connects one or more computer servers and a plurality of client computers with each other. Electronic information of a web page stored in one of the plurality of client computers is accessed using information of its location from one of the computer servers based on a request from one of the client computers. A copy of the electronic information is then obtained. Attribute information is generated from the location, access time, and date when the electronic information is accessed. An electronic certificate may be generated by uniquely specifying the electronic information and the attribute information as inherent information identifying the electronic information. The copy of the electronic information is stored in a memory by tying up the electronic information with the electronic certificate and the attribute information.Type: GrantFiled: November 21, 2006Date of Patent: October 12, 2010Assignee: Ricoh Company, Ltd.Inventors: Yoichi Kanai, Masuyoshi Yachida, Tomio Mizuno, Tatsuya Furukawa, Yoichi Ishikawa
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Publication number: 20090271132Abstract: An apparatus for accurately estimating the SOC of a rechargeable battery installed in a hybrid electric vehicle. A voltage variation measurement unit measures terminal voltage variation amount of the rechargeable battery in a no-battery-current state in which a charge-discharge current does not flow in the rechargeable battery. A polarization voltage calculator calculates a polarization voltage from the measured variation amount. An electromotive force calculator subtracts the polarization voltage from a non-load voltage in a state in which a charge-discharge path is open to calculate the electromotive force of the rechargeable battery. An SOC estimator estimates the SOC of the rechargeable battery based on the electromotive force.Type: ApplicationFiled: April 20, 2009Publication date: October 29, 2009Applicant: PANASONIC EV ENERGY CO., LTD.Inventors: Tatsuya Furukawa, Naoto Sato