Patents by Inventor Yukio Tanaka
Yukio Tanaka 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: 12203234Abstract: A first pinhole is formed in a first member in a section facing a second member. A second pinhole is formed in the second member in a section facing the first member. A connecting pin is inserted into the first pinhole and the second pinhole from the side of the machine center. A coming-off prevention mechanism includes a coming-off prevention lever. The coming-off prevention lever can abut the inner end surface of the connecting pin. The coming-off prevention lever is supported by the second member to be able to move between an abutting position of abutting the inner end surface of the coupling pin and a non-abutting position of not abutting the inner end surface.Type: GrantFiled: May 18, 2020Date of Patent: January 21, 2025Assignee: KOBELCO CONSTRUCTION MACHINERY CO., LTD.Inventors: Hiroki Tanaka, Shigeki Kuramoto, Ichiro Wada, Yukio Miyano
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Publication number: 20250022419Abstract: A display device includes a substrate including a display region; and a first pixel arranged in a first region on an outer edge of the display region, and a second pixel arranged in a second region surrounded by the first region. Each of the first pixel and the second pixel includes a first transistor, a second transistor, a first capacitor, a third transistor, and a seventh transistor. A capacitance of a capacitor connected to the gate electrode of the second transistor of the first pixel is different from a capacitance of a capacitor connected to the gate electrode of the second transistor of the second pixel.Type: ApplicationFiled: July 10, 2024Publication date: January 16, 2025Applicant: Japan Display Inc.Inventors: Yukio TANAKA, Tetsuo MORITA, Kenji HARADA
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Publication number: 20240331627Abstract: An EL display device is controlled to emit light so as to effectively reduce a flicker even when low-frequency driving is used at any frequency. In a light emission control method of the EL display device including a plurality of regularly arranged light emitting elements, one or more non-light emission periods, in which the light emitting element does not emit, are inserted in one emission cycle of the light emitting element. In a luminance change of the light emitting element at the emission cycle of T?2?/?, l is a largest natural number with respect to a threshold frequency ?th/2?0 to satisfy l???th, the following holds: ? n = 1 l ? "\[LeftBracketingBar]" c n ? "\[RightBracketingBar]" 2 ? 1 2 ? ? n = 1 ? ? "\[LeftBracketingBar]" c n ? "\[RightBracketingBar]" 2 where n is an integer and cn is a complex Fourier coefficient of luminance L(t) of the light emitting element in a section 0?t<T.Type: ApplicationFiled: March 28, 2024Publication date: October 3, 2024Inventors: Yukio TANAKA, Tetsuo MORITA, Yutaka UMEDA
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Publication number: 20240183310Abstract: A raw material fluid treatment plant is provided with a raw material reaction apparatus for reacting a raw material fluid to form a reaction gas. The raw material reaction apparatus includes preheaters and a reactor. The preheaters are heat exchangers that perform heat exchange between a second heat transfer medium and the raw material fluid to heat the raw material fluid. The reactor is a heat exchanger that performs heat exchange between a first heat transfer medium differing from the second heat transfer medium and the raw material fluid having been heated by the preheaters to heat and react the raw material fluid.Type: ApplicationFiled: February 13, 2024Publication date: June 6, 2024Inventors: Hideyuki UECHI, Hidefumi ARAKI, Satoshi TANIMURA, Masakazu NOSE, Jun SASAHARA, Yukio TANAKA, Atsushi YUASA
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Patent number: 11939915Abstract: A raw material fluid treatment plant provided with a raw material reaction apparatus for reacting a raw material fluid to form a reaction gas. The raw material reaction apparatus includes preheaters and a reactor. The preheaters are heat exchangers that perform heat exchange between a second heat transfer medium and the raw material fluid to heat the raw material fluid. The reactor is a heat exchanger that performs heat exchange between a first heat transfer medium differing from the second heat transfer medium and the raw material fluid having been heated by the preheaters to heat and react the raw material fluid.Type: GrantFiled: March 9, 2020Date of Patent: March 26, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hideyuki Uechi, Hidefumi Araki, Satoshi Tanimura, Masakazu Nose, Jun Sasahara, Yukio Tanaka, Atsushi Yuasa
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Publication number: 20240067587Abstract: An olefin production device for producing an olefin from a raw material gas containing methane and oxygen includes a reactor containing: a first catalyst; and a second catalyst disposed downstream of the first catalyst in a flow direction of the raw material gas. The first catalyst is a catalyst in which a zirconium salt or carbonate of an alkali metal, an oxide of an alkaline earth metal, an oxide of one kind of lanthanoid element, a composite oxide containing a lanthanoid element, or a combination thereof is supported on a support. The second catalyst is a catalyst containing a tungsten oxide, phosphate, or carbonate of an alkali metal.Type: ApplicationFiled: March 2, 2022Publication date: February 29, 2024Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., The University of TokyoInventors: Koichiro Yoshitoku, Yukio Tanaka, Atsuhiro Yukumoto, Noriaki Senba, Kazuhiro Takanabe
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Publication number: 20230242682Abstract: A partial oxidative coupling catalyst has a structure in which a component represented by M2ZrO3 is supported on a support, where M represents an alkali metal.Type: ApplicationFiled: September 16, 2021Publication date: August 3, 2023Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., The University of TokyoInventors: Atsuhiro Yukumoto, Yukio Tanaka, Noriaki Senba, Kazuhiro Takanabe, Bhavin Siritanaratkul
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Patent number: 11702988Abstract: An ammonia decomposition facility includes a heating medium line configured to flow a heating medium heated by heat generated by a gas turbine, an ammonia supply line configured to flow ammonia, an ammonia decomposition device, and an ammonia removal device. The ammonia decomposition device is configured to use heat of the heating medium from the heating medium line, thermally decompose ammonia from the ammonia supply line, and generate a decomposition gas containing hydrogen, nitrogen, and residual ammonia. The ammonia removal device is configured to remove the residual ammonia contained in the decomposition gas from the ammonia decomposition device.Type: GrantFiled: March 13, 2020Date of Patent: July 18, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hidefumi Araki, Satoshi Tanimura, Masakazu Nose, Jun Sasahara, Hideyuki Uechi, Yukio Tanaka, Atsushi Yuasa
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Publication number: 20220154646Abstract: An ammonia decomposition facility includes a heating medium line configured to flow a heating medium heated by heat generated by a gas turbine, an ammonia supply line configured to flow ammonia, an ammonia decomposition device, and an ammonia removal device. The ammonia decomposition device is configured to use heat of the heating medium from the heating medium line, thermally decompose ammonia from the ammonia supply line, and generate a decomposition gas containing hydrogen, nitrogen, and residual ammonia. The ammonia removal device is configured to remove the residual ammonia contained in the decomposition gas from the ammonia decomposition device.Type: ApplicationFiled: March 13, 2020Publication date: May 19, 2022Inventors: Hidefumi ARAKI, Satoshi TANIMURA, Masakazu NOSE, Jun SASAHARA, Hideyuki UECHI, Yukio TANAKA, Atsushi YUASA
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Publication number: 20220099021Abstract: A raw material fluid treatment plant provided with a raw material reaction apparatus for reacting a raw material fluid to form a reaction gas. The raw material reaction apparatus includes preheaters and a reactor. The preheaters are heat exchangers that perform heat exchange between a second heat transfer medium and the raw material fluid to heat the raw material fluid. The reactor is a heat exchanger that performs heat exchange between a first heat transfer medium differing from the second heat transfer medium and the raw material fluid having been heated by the preheaters to heat and react the raw material fluid.Type: ApplicationFiled: March 9, 2020Publication date: March 31, 2022Inventors: Hideyuki UECHI, Hidefumi ARAKI, Satoshi TANIMURA, Masakazu NOSE, Jun SASAHARA, Yukio TANAKA, Atsushi YUASA
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Publication number: 20210060508Abstract: A plant that consumes a reformed gas obtained by reforming a source gas including at least methane and carbon dioxide includes: a reforming device that includes a reforming catalyst for reforming the source gas and an electric power supply member for supplying electric power to the reforming catalyst and that supplies electric power to the reforming catalyst to reform the source gas; and a reformed gas consuming apparatus that consumes the reformed gas A reaction temperature of a reforming reaction of the source gas in the reforming device can be adjusted by adjusting a supply amount of a heating medium including exhaust heat generated due to consumption of the reformed gas in the reformed gas consuming apparatus to the reforming device when heat exchange between the source gas and the heat medium is performed in the reforming gas.Type: ApplicationFiled: February 5, 2020Publication date: March 4, 2021Inventors: Koichiro YOSHITOKU, Yukio TANAKA, Keiichi NAKAGAWA
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Patent number: 10774278Abstract: A CO shift catalyst according to the present invention reforms carbon monoxide (CO) in gas. The CO shift catalyst has one of molybdenum (Mo) or iron (Fe) as a main component and has an active ingredient having one of nickel (Ni) or ruthenium (Ru) as an accessory component and one or two or more kinds of oxides from among titanium (Ti), zirconium (Zr), and cerium (Ce) for supporting the active ingredient as a support. The temperature at the time of manufacturing and firing the catalyst is equal to or higher than 550° C.Type: GrantFiled: June 8, 2017Date of Patent: September 15, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.Inventors: Masanao Yonemura, Toshinobu Yasutake, Akihiro Sawata, Yoshio Seiki, Yukio Tanaka, Koji Higashino, Hyota Abe, Kaori Yoshida
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Patent number: 10400187Abstract: A natural gas refining apparatus including a first separation membrane unit including a first separation membrane; and a second separation membrane unit provided in a subsequent stage of the first separation membrane unit. The second separation membrane unit includes a second separation membrane that allows an amine solution to circulate through the second separation membrane unit, and the natural gas refining apparatus refines raw natural gas containing CO2 by passing the raw natural gas through the first and second separation membrane units, separating CO2-rich gas with the first and second separation membranes, and absorbing CO2 with the amine solution circulating through the second separation membrane unit.Type: GrantFiled: November 16, 2015Date of Patent: September 3, 2019Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yukio Tanaka, Ryuji Yoshiyama, Masayuki Eda, Tomoh Akiyama
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Patent number: 10315157Abstract: A system and method for separating CO2 from natural gas, which ensure that no clogging or deterioration occurs in a gas separation membrane even after the gas separation membrane is used to remove carbon dioxide from the natural gas under conditions in which the natural gas is pressurized. First, an H2S remover removes hydrogen sulfide from raw natural gas. Then, a compressor pressurizes the natural gas from which H2S has been removed. After that, a cooler cools the pressurized natural gas so as to condense components that are a part of the natural gas. A gas/liquid separator removes the condensed components, and a CO2 separator, including a separation membrane for separating CO2 removes CO2 from the natural gas from which the condensed components have been removed. An expander, which shares a drive shaft with the compressor, expands the natural gas from which CO2 has been removed and recovers energy therefrom.Type: GrantFiled: November 16, 2015Date of Patent: June 11, 2019Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yukio Tanaka, Tomoh Akiyama, Ryuji Yoshiyama, Masayuki Eda
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Patent number: 10317761Abstract: A liquid crystal display device according to an aspect of the invention includes a display region having a plurality of sub pixels. The sub pixels each include a pixel electrode and a thin film transistor electrically coupled to the pixel electrode. A transient leak current of each thin film transistor included in the sub pixels at both ends of the display region among the sub pixels provided on a line passing through the center of the display region in plan view is smaller than a transient leak current of each thin film transistor included in the sub pixels in a central portion including the center.Type: GrantFiled: June 3, 2016Date of Patent: June 11, 2019Assignee: Japan Display Inc.Inventors: Yukio Tanaka, Daiichi Suzuki, Takashi Nakamura, Masahiro Tada, Youichi Asakawa
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Patent number: 10246340Abstract: Included are an ammonia synthesis column that synthesizes ammonia from a raw material gas, a discharge line that discharges a synthetic gas, a water-cooled cooler that cools the synthetic gas with a coolant, disposed in the discharge line, an ammonia separator into which a synthetic gas after cooling is introduced and which separates the ammonia gas and a liquid ammonia from each other, a raw material return line that returns a raw material gas containing the separated ammonia gas to the ammonia synthesis column side as a return raw material gas, and a compressor that compresses the return raw material gas, disposed in the raw material return line. An ammonia concentration in the return raw material gas is 5 mol % or more, and an ammonia synthesis catalyst that synthesizes the ammonia gas in the ammonia synthesis column is a ruthenium catalyst.Type: GrantFiled: April 21, 2015Date of Patent: April 2, 2019Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINEERING, LTD.Inventors: Mikiya Sakurai, Yukio Tanaka, Naoya Okuzumi, Hiroyuki Osora, Haruaki Hirayama
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Publication number: 20190088222Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer, a first alignment film, a pixel electrode, and a common electrode. The liquid crystal layer is disposed between the first substrate and the second substrate. The first alignment film is provided on the first substrate to be in contact with the liquid crystal layer. The pixel electrode is provided on the first substrate and covered with the first alignment film. The common electrode provided on the first substrate to form a lateral electric field. The liquid crystal layer is driven at a frequency of 40 Hz or less. A time constant of the liquid crystal layer is larger than a time constant of the first alignment film.Type: ApplicationFiled: November 15, 2018Publication date: March 21, 2019Applicant: Japan Display Inc.Inventors: Masahiro KOSUGE, Yukio TANAKA
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Publication number: 20190071312Abstract: Provided are activated carbon, a method for treating activated carbon, an ammonia synthesis catalyst, and a method for producing ammonia synthesis catalyst such that catalytic activity can be improved over the prior art. Activated carbon is activated by being subjected to heat treatment at a temperature of 800 to 1100° C. for 10 to 50 hours in an inert gas into which oxygen is mixed in a concentration of 0.05 to 900 ppm, and the activated carbon is used to improve the catalytic activity of an ammonia synthesis catalyst.Type: ApplicationFiled: January 17, 2017Publication date: March 7, 2019Applicant: Mitsubishi Heavy Industries Engineering, Ltd.Inventors: Yukio Tanaka, Hiroshi Yoshioka, Haruaki Hirayama
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Patent number: 10186217Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a liquid crystal layer, a first alignment film, a pixel electrode, and a common electrode. The liquid crystal layer is disposed between the first substrate and the second substrate. The first alignment film is provided on the first substrate to be in contact with the liquid crystal layer. The pixel electrode is provided on the first substrate and covered with the first alignment film. The common electrode provided on the first substrate to form a lateral electric field. The liquid crystal layer is driven at a frequency of 40 Hz or less. A time constant of the liquid crystal layer is larger than a time constant of the first alignment film.Type: GrantFiled: June 13, 2017Date of Patent: January 22, 2019Assignee: Japan Display Inc.Inventors: Masahiro Kosuge, Yukio Tanaka
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Patent number: 10031382Abstract: According to one embodiment, a liquid crystal display device includes a liquid crystal display panel which includes a pixel electrode, a liquid crystal layer and an alignment film, and a driver. The driver drives the pixel electrode at a drive frequency of 1 to 20 Hz. The alignment film has a resistivity of 5×1014 ?·cm or more.Type: GrantFiled: December 23, 2016Date of Patent: July 24, 2018Assignee: Japan Display Inc.Inventors: Daiichi Suzuki, Yoshifumi Saeki, Yukio Tanaka, Noboru Kunimatsu, Hidehiro Sonoda, Masahiro Kosuge