Patents by Inventor Tetsuya Okamoto
Tetsuya Okamoto 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: 20250044003Abstract: A ventilation apparatus includes a compressor; a first heat exchanger configured to function as a condenser or an evaporator; a first air flow path configured to supply air taken in from outdoors to an indoor space after passing through the first heat exchanger; a second heat exchanger configured to function as a condenser or an evaporator; a second air flow path configured to exhaust air taken in from the indoor space to the outdoors after passing through the second heat exchanger; a refrigerant circuit through which a refrigerant flows, the refrigerant circuit being connected to the compressor, the first heat exchanger, and the second heat exchanger by a refrigerant pipe; and a control unit configured to guide a flow of air in the indoor space to the second heat exchanger when the second heat exchanger is determined to be in a frosted state, to increase a temperature of the second heat exchanger, and configured to output a predetermined instruction to an actuator configured to control a state of the refrigeType: ApplicationFiled: December 8, 2022Publication date: February 6, 2025Inventors: Shota TSURUZONO, Takashi TAKAHASHI, Tsunahiro ODO, Nobuki MATSUI, Yoshiki YAMANOI, Naotoshi FUJITA, Takuya HANADA, Yuta IYOSHI, Kumiko SAEKI, Takeru MIYAZAKI, Toshiyuki MAEDA, Tetsuya OKAMOTO
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Patent number: 12218480Abstract: A semiconductor optical amplifier integrated laser includes a semiconductor laser oscillator portion that oscillates laser light having a wavelength included in a gain band and a semiconductor optical amplifier portion that amplifies laser light output from the semiconductor laser oscillator portion. The semiconductor laser oscillator portion and the semiconductor optical amplifier portion have one common p-i-n structure, the common p-i-n structure includes an active layer, a cladding layer provided apart from the active layer, and a common functional layer formed in the cladding layer, and the common functional layer includes a first portion that reflects light having a wavelength within the gain band in the semiconductor laser oscillator portion and a second portion that transmits light having a wavelength within the gain band in the semiconductor optical amplifier portion.Type: GrantFiled: January 9, 2023Date of Patent: February 4, 2025Assignee: Lumentum Japan, Inc.Inventors: Atsushi Nakamura, Kaoru Okamoto, Masatoshi Arasawa, Tetsuya Nishida, Yasushi Sakuma, Shigetaka Hamada, Ryosuke Nakajima
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Patent number: 12213377Abstract: Provided are an organic thin film transistor, an organic semiconductor film, a compound, an organic thin film transistor-forming composition, and a method of manufacturing the organic thin film transistor. The organic thin film transistor includes the organic semiconductor film. The organic semiconductor film includes a compound represented by a specific formula. The organic semiconductor film, the compound, and the organic thin film transistor-forming composition can be preferably used in the organic thin film transistor. The method of manufacturing the organic thin film transistor includes a step of forming an organic semiconductor film by applying the organic thin film transistor-forming composition to a substrate.Type: GrantFiled: July 22, 2021Date of Patent: January 28, 2025Assignees: FUJIFILM Corporation, The University of TokyoInventors: Eiji Fukuzaki, Tetsuya Watanabe, Yoshihisa Usami, Yukio Tani, Toshihiro Okamoto, Junichi Takeya
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Publication number: 20250030221Abstract: An illumination system includes light sources including a first light source and a second light source, a substrate, wavelength converters including a first wavelength converter and a second wavelength converter on the substrate, a light guide, and a controller. The light guide guides fluorescence from the wavelength converters. When causing each light source to repeat emission/non-emission of excitation light in constant cycles, in an operation period of one cycle, the controller causes the second light source to emit no excitation light toward the second wavelength converter for at least a portion of a first emission period during which the first light source emits excitation light toward the first wavelength converter, and the first light source to emit no excitation light toward the first wavelength converter for at least a portion of a second emission period during which the second light source emits excitation light toward the second wavelength converter.Type: ApplicationFiled: November 16, 2022Publication date: January 23, 2025Applicant: KYOCERA CorporationInventor: Tetsuya OKAMOTO
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Publication number: 20240337401Abstract: A ventilation apparatus includes a processor; a compressor; a first heat exchanger; a first air flow path configured to supply air from outdoors to an indoor space after passing through the first heat exchanger; a second heat exchanger; a second air flow path configured to exhaust air from the indoor space to the outdoors after passing through the second heat exchanger; and a refrigerant circuit through which a refrigerant flows, the refrigerant circuit being connected to the compressor, and the first and second heat exchangers. The processor detects whether a predetermined reference indicating a possibility of frosting in the second heat exchanger is satisfied while the second heat exchanger is functioning as an evaporator, and controls a temperature of the refrigerant flowing through the second heat exchanger such that the second heat exchanger will have a temperature at which frosting does not occur, when the predetermined reference is satisfied.Type: ApplicationFiled: June 14, 2024Publication date: October 10, 2024Inventors: Takashi TAKAHASHI, Tsunahiro ODO, Shota TSURUZONO, Nobuki MATSUI, Takuya HANADA, Naotoshi FUJITA, Yoshiki YAMANOI, Yuta IYOSHI, Kumiko SAEKI, Takeru MIYAZAKI, Toshiyuki MAEDA, Tetsuya OKAMOTO
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Publication number: 20240328658Abstract: The air-conditioning system according to an embodiment is provided with a ventilation device, an air-conditioner, a processor, and a memory storing one or more programs, which when executed, cause the processor to control the ventilation device and the air-conditioner. The processor stores a first capability indicating a heat load that can be output corresponding to the power consumption of the ventilation device and a second capability indicating a heat load that can be output corresponding to the power consumption of the air conditioner, acquires the temperature of an indoor space, and sets the ventilation device and the air conditioner to share the first heat load that needs to be adjusted in the indoor space calculated based on the temperature of the indoor space according to the first capability and the second capability.Type: ApplicationFiled: June 11, 2024Publication date: October 3, 2024Inventors: Tsunahiro ODO, Takashi TAKAHASHI, Shota TSURUZONO, Takuya HANADA, Naotoshi FUJITA, Yoshiki YAMANOI, Yuta IYOSHI, Kumiko SAEKI, Takeru MIYAZAKI, Nobuki MATSUI, Toshiyuki MAEDA, Tetsuya OKAMOTO
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Publication number: 20240181766Abstract: An alignment device includes: a first stage; a plurality of base plates disposed on the first stage and on which a material is placed; and a plurality of second stages disposed under the first stage, and connected to the plurality of base plates, respectively, and capable of aligning each of the plurality of base plates in X, Y, and ? directions.Type: ApplicationFiled: July 26, 2023Publication date: June 6, 2024Inventors: TAEYOUNG PARK, SUKJU KANG, TETSUYA OKAMOTO, BYUNG MOO KIM, SANG CHEOL KIM, MYUNG-HUN OH, DONGGUL LEE, JUN-HEE LEE
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Publication number: 20240167744Abstract: A fluid leakage detection system includes a detection device, a communication device, and a power supply unit. The detection device includes a detector that detects a leakage of a fluid from a flow path. The communication device includes a communicator to transmit and receive, to and from the detection device, predetermined information as to whether there is a leakage of the fluid. The power supply unit supplies power to the detection device in a wireless manner.Type: ApplicationFiled: January 29, 2024Publication date: May 23, 2024Inventors: Tadafumi NISHIMURA, Tetsuya OKAMOTO, Manabu YOSHIMI, Hiroshi DOUMAE, Takuya HANADA
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Publication number: 20240085052Abstract: An air conditioning unit includes an indoor air conditioner, a power supply line, and a wireless power feeder. The indoor air conditioner conditions air in a target space. The power supply line supplies power to the indoor air conditioner. The wireless power feeder feeds power to a predetermined device disposed in the target space. The wireless power feeder acquires power from the power supply line.Type: ApplicationFiled: November 22, 2023Publication date: March 14, 2024Inventors: Tadafumi NISHIMURA, Hiroshi DOUMAE, Tetsuya OKAMOTO, Takuya HANADA
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Publication number: 20230373203Abstract: An apparatus for manufacturing a display device includes a pressurizing portion and a first unit arranged apart from the pressurizing portion in a first direction when the first unit is in a first position, where the first unit includes a first support portion movable in the first direction, a first chamber arranged on the first support portion, where a first substrate is loaded in the first chamber, and a second chamber arranged on the first chamber, where a second substrate is loaded in the second chamber, and the first support portion moves between the first position in which the first support portion is located apart from the pressurizing portion in the first direction and a second position in which the first support portion and the pressurizing portion overlap each other in a plan view.Type: ApplicationFiled: April 28, 2023Publication date: November 23, 2023Inventors: Dongho PARK, Tetsuya OKAMOTO, Junhee LEE, Dongmin PARK, Junghyeok LIM
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Publication number: 20230332801Abstract: A hot water supply system includes a hot water supply apparatus, a plurality of supply paths, and an estimation unit. The hot water supply apparatus includes a heating apparatus configured to heat water, a tank configured to store the water heated by the heating apparatus, and a water circuit configured to circulate the water in the tank. Each supply path is coupled to a corresponding one of a plurality of hot water supply targets and is configured to supply the water from the tank. The estimation unit is configured to predict a total amount of hot water supply demand, based on time-series data of a first index that indicates an amount of heat of water used in each of the plurality of hot water supply targets.Type: ApplicationFiled: June 27, 2023Publication date: October 19, 2023Inventors: Hideho SAKAGUCHI, Tetsuya OKAMOTO, Masanori UKIBUNE
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Publication number: 20230327134Abstract: A current collector, an electrode, and a non-aqueous electrolyte battery are provided. The current collector includes a conductive body having a three-dimensional porous structure. The current collector has an air permeability of 0.1 to 600 cc/cm2/sec and a thickness of less than 100 ?m. Also, the electrode includes the current collector and an electrode material layer disposed on at least one surface of the current collector. The non-aqueous electrolyte battery includes the electrode.Type: ApplicationFiled: May 31, 2023Publication date: October 12, 2023Applicant: KURARAY KURAFLEX CO., LTD.Inventors: Yasuhiro SHIROTANI, Soichi OBATA, Tetsuya OKAMOTO, Hideharu IWASAKI
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Publication number: 20230208275Abstract: A semiconductor switch drive device (3) includes a drive unit (10), a power supply unit (20), a switch (39), and a control unit (50). The drive unit (10) supplies a control signal to a semiconductor switch (Q) of a main circuit (2) and drives the semiconductor switch (Q). The power supply unit (20) supplies electric power to the drive unit (10). The switch (39) cuts off supply of electric power to the power supply unit (20) by detecting or controlling an overvoltage state on a primary side of the power supply unit (20). The control unit (50) switches a conductive state of the switch (39) on the basis of a voltage of a control terminal of the semiconductor switch (Q).Type: ApplicationFiled: May 12, 2020Publication date: June 29, 2023Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATIONInventors: Fumio WATANABE, Tetsuya OKAMOTO
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Publication number: 20230024725Abstract: An intermediate plate is supported by a bottom member through a plurality of second elastic members. A first compressor is supported by the intermediate plate through a plurality of first elastic members. A second compressor is supported by the same intermediate plate through a plurality of first elastic members.Type: ApplicationFiled: September 29, 2022Publication date: January 26, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Masao OHNO, Tetsuya OKAMOTO, Kazushi HISAYAMA, Kebi CHEN, Yoshinobu TSUMURA, Masanori UKIBUNE
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Publication number: 20230014957Abstract: A refrigeration apparatus includes a refrigerant circuit switchable between a first operation of performing a refrigeration cycle in which a first compressor is stopped and a second compressor is driven and a second operation of performing a refrigeration cycle in which the first and second compressors and are driven. The refrigeration apparatus further includes a reduction mechanism configured to reduce a refrigerant flowing into the first compressor while a first condition is satisfied during the first operation. The first condition indicates that an internal pressure of the first compressor is lower than an evaporation pressure of an evaporator.Type: ApplicationFiled: September 29, 2022Publication date: January 19, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Kazushi HISAYAMA, Masanori UKIBUNE, Tetsuya OKAMOTO, Masao OHNO, Kebi CHEN
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Publication number: 20230020042Abstract: A first intermediate plate and a second intermediate plate are supported by a bottom member through a plurality of second elastic members. The first compressor and the second compressor are supported by the first intermediate plate and the second intermediate plate, respectively, through a plurality of first elastic members.Type: ApplicationFiled: September 30, 2022Publication date: January 19, 2023Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Masao OHNO, Tetsuya OKAMOTO, Kazushi HISAYAMA, Kebi CHEN, Yoshinobu TSUMURA, Masanori UKIBUNE
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Patent number: 11440289Abstract: Provided are a melt blown (MB) nonwoven fabric, a laminate using the same, a method of producing a melt blown nonwoven fabric as well as a melt blowing apparatus. A melt blowing apparatus 100 includes a die 10 configured to discharge a resin melt 42 with an accompanying jet to give fiber materials, a hollow cover 20, and a collector 60. The fiber materials 50 from the die 10 are heated to a temperature equal to or higher than a crystallization temperature of crystalline thermoplastic resin inside the hollow cover 20 and collected on a collecting surface 62 of the collector 60. The hollow cover 20 and the collector 60 are separated by a distance of 5 cm or longer between a lower edge 28 of the hollow cover 20 and the collecting surface 62 in a line extending downwardly from the nozzle holes 12 in a vertical direction.Type: GrantFiled: February 7, 2020Date of Patent: September 13, 2022Assignee: KURARAY CO., LTD.Inventors: Tetsuya Okamoto, Yasuhiro Shirotani
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Patent number: 11313567Abstract: A refrigeration cycle apparatus has a compressor disposed via a bottom member of a housing, a second elastic member, a base, and a first elastic member. A first electric component that drives a motor for the compressor and a second electric component that performs another control are fixed to the base and disposed. The base has an upper surface that contacts the first elastic member and a lower surface that contacts the second elastic member. The first electric component and the second electric component are fixed to the upper surface directly or indirectly via a substrate and/or an electric-component casing. Top portions of the first electric component and the second electric component are lower than a top portion of the compressor.Type: GrantFiled: March 22, 2019Date of Patent: April 26, 2022Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Kazushi Hisayama, Tetsuya Okamoto, Yoshinobu Tsumura, Kebi Chen, Masanori Ukibune
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Publication number: 20220011020Abstract: A refrigerant circuit includes a first compressor, a second compressor, a heat-source-side heat exchanger, an expansion mechanism, and a use-side heat exchanger. The refrigerant circuit is capable of performing a single-stage compression operation in which one of the first compressor and the second compressor is driven and the other is stopped, and a two-stage compression operation in which both the first compressor and the second compressor are driven. The control unit controls the refrigerant circuit so that, of the single-stage compression operation and the two-stage compression operation, an operation with a higher compression efficiency is performed.Type: ApplicationFiled: September 24, 2021Publication date: January 13, 2022Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Kazushi HISAYAMA, Kebi CHEN, Tetsuya OKAMOTO
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Patent number: 11209195Abstract: An air conditioner (1, 101) has a refrigerant circuit (10, 110) which is formed by connecting an outdoor unit (2, 102) and an indoor unit (3). The refrigerant circuit (10, 110) has a refrigerant sealed therein. The refrigerant contains a hydrofluorocarbon having a property of undergoing a disproportionation reaction. The refrigerant circuit (10, 110) includes a refrigerant shutoff mechanism (24, 41, 43, 46, 47, 48) that shuts off a flow of the refrigerant from the outdoor unit (2, 102) side to the indoor unit (3) side when the refrigerant in a portion of the refrigerant circuit (10, 110) within the outdoor unit (2, 102) meets a predetermined condition.Type: GrantFiled: March 23, 2018Date of Patent: December 28, 2021Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Eiji Kumakura, Tetsuya Okamoto