Patents by Inventor Kenta Uchida
Kenta Uchida 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: 20240190562Abstract: In a vertical take-off and landing aircraft, a plurality of VTOL rotors are divided into a plurality of groups, and each VTOL rotor is included in any one of the groups. After lift is generated by wings (a front wing and a rear wing), a controller sequentially stops rotation of the plurality of VTOL rotors on a group-by-group basis.Type: ApplicationFiled: July 27, 2023Publication date: June 13, 2024Inventors: Bon Aizawa, Toshinori Tsukamoto, Masashi Kato, Kenta Uchida, Kaisaku Yoshimura
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Publication number: 20240158655Abstract: A pigment printing ink jet ink composition according to one embodiment of the present disclosure includes a self-dispersible black pigment having a specific surface area of 50 m2/g or more calculated from a measurement by a pulse NMR at 30° C., a metal alkali, a water-soluble organic solvent, and water, and in the ink composition described above, a content of the self-dispersible black pigment with respect to a content of the metal alkali is 13 to 40 in terms of a composition ratio, the water-soluble organic solvent includes a compound having an SP value of 11 or more, and the water-soluble organic solvent includes no compound having an SP value of less than 11 at a content of more than 0.3 percent by mass with respect to a total mass of the ink composition.Type: ApplicationFiled: November 9, 2023Publication date: May 16, 2024Inventors: Tasuku NAKAMURA, Kenta UCHIDA, Akiko YAMADA
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Publication number: 20240124732Abstract: An ink jet ink composition functioning as a water-based magenta ink includes an azo-based pigment and a 1,2-alkanediol having 4 to 8 carbon atoms. In the ink jet ink composition described above, the azo-based pigment has a volume average particle diameter D50 of 110 nm or less, and a content of the 1,2-alkanediol having 4 to 8 carbon atoms with respect to a total mass of the composition is 3.5 percent by mass or less.Type: ApplicationFiled: September 25, 2023Publication date: April 18, 2024Inventors: Sena GOZU, Kenta UCHIDA
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Patent number: 11955959Abstract: A parallel driving device that drives parallel-connected semiconductor elements includes a control unit and a gate driving circuit. The control unit detects a temperature difference between the semiconductor elements on the basis of detected values by temperature sensors that detect temperatures of the individual semiconductor elements. The control unit generates a control signal for changing the timing at which to turn on a first semiconductor element specified from the semiconductor elements on the basis of the temperature difference. The gate driving circuit generates a first driving signal for driving the semiconductor elements, and generates a second driving signal that is the first driving signal delayed on the basis of the control signal, and applies the second driving signal to the first semiconductor element.Type: GrantFiled: May 29, 2019Date of Patent: April 9, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yasushi Nakayama, Yoshiko Tamada, Takayoshi Miki, Shota Morisaki, Yukio Nakashima, Kenta Uchida, Keisuke Kimura, Tomonobu Mihara
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Publication number: 20240083574Abstract: A controller of a thrust generating device executes one of first control of controlling thrust by changing the pitch angle of each blade while maintaining the rotational speed of a propeller at a reference value, or second control of allowing the thrust greater than the thrust generated in the first control to be generated by making the rotational speed of the propeller larger than the reference value.Type: ApplicationFiled: September 7, 2023Publication date: March 14, 2024Inventors: Kenta Uchida, Toshinori Tsukamoto, Masashi Kato, Bon Aizawa, Kaisaku Yoshimura
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Publication number: 20240076512Abstract: A water-based ink jet ink composition contains C.I. Pigment Red 150 and at least one of 1-(2-hydroxyethyl)-2-pyrrolidone and ?-caprolactam.Type: ApplicationFiled: August 28, 2023Publication date: March 7, 2024Inventors: Sena GOZU, Yuko HISHIDA, Kenta UCHIDA
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Publication number: 20240043130Abstract: A controller (a control unit) of a power supply system of a vertical take-off and landing aircraft is configured to: after lift is generated by wings (a front wing and a rear wing), perform stop control of controlling electric power supplied to a motor so that rotation of a VTOL rotor continues to stop; temporarily cancel the stop control in response to the temperature of any one switching element detected by a temperature detection unit (a temperature sensor) becoming equal to or higher than a temperature threshold during the stop control; and resume the stop control after the stop control has been temporarily canceled.Type: ApplicationFiled: July 28, 2023Publication date: February 8, 2024Inventors: Kaisaku Yoshimura, Bon Aizawa, Kenta Uchida, Masashi Kato, Toshinori Tsukamoto
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Publication number: 20230295451Abstract: A recording method includes a supply step of supplying an ink composition from an ink chamber to an ink jet head and an adhesion step of discharging the ink composition from the ink jet head and allowing the composition to adhere to a recording medium. The ink chamber receives supply of the ink composition from the ink container and has a capacity of 40 mL or more. The ink composition is an aqueous ink composition containing a pigment and an inorganic oxide particle having a specific gravity equal to or higher than that of the pigment.Type: ApplicationFiled: March 14, 2023Publication date: September 21, 2023Inventors: Kenta UCHIDA, Yusuke MIZUTAKI, Miki UCHIDA
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Patent number: 11714434Abstract: A gas safety device includes flow path, shutoff valve that shuts off flow path, flow rate measurement unit that measures a flow rate of gas, gas-side absolute pressure sensor that measures absolute pressure of the gas, atmosphere-side absolute pressure sensor that measures absolute pressure of atmospheric pressure, and pressure value transition detector that detects a transition state of the absolute pressure measured by gas-side absolute pressure sensor. Further provided are sensor drive controller that controls driving of atmosphere-side absolute pressure sensor in accordance with a value of pressure transition in pressure value transition detector, and gas pressure determination unit that calculates gas supply pressure from a difference between pressure values measured when the two sensors are driven.Type: GrantFiled: May 13, 2020Date of Patent: August 1, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Taiti Gyoutoku, Kenji Yasuda, Kenta Uchida
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Publication number: 20230184288Abstract: An annular sliding component disposed at a relatively rotating position of a rotating machine and sliding relative to the other sliding component has a sliding surface provided with a dynamic pressure generation groove which includes a communication portion communicating with an external space and a dead-end portion on a relative rotation downstream of the communication portion. The sliding component includes a guide configured to guide a fluid existing in the external space on an upstream side of the communication portion in a guide direction different from a direction in which a peripheral surface of the sliding component formed on the downstream side of the communication portion and facing toward a side of the external space extends.Type: ApplicationFiled: April 28, 2021Publication date: June 15, 2023Inventors: Tadatsugu IMURA, Ayano TANISHIMA, Iwa OU, Shogo FUKUDA, Kenta UCHIDA
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Publication number: 20230175587Abstract: In a sliding component formed in an annular shape and disposed at a relatively rotating position of a rotating machine and sliding relative to an opposite sliding component, a sliding surface of the sliding component is provided with a conduction groove communicating with an outer space and a dynamic pressure generation groove communicating with the conduction groove, extending in a circumferential direction, and having a closed terminating end portion and at least a part of a bottom portion of the conduction groove is provided with an inclined surface inclined with respect to a radial direction.Type: ApplicationFiled: March 30, 2021Publication date: June 8, 2023Inventors: Tadatsugu IMURA, Iwa OU, Shogo FUKUDA, Kenta UCHIDA
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Publication number: 20220231595Abstract: A parallel driving device that drives parallel-connected semiconductor elements includes a control unit and a gate driving circuit. The control unit detects a temperature difference between the semiconductor elements on the basis of detected values by temperature sensors that detect temperatures of the individual semiconductor elements. The control unit generates a control signal for changing the timing at which to turn on a first semiconductor element specified from the semiconductor elements on the basis of the temperature difference. The gate driving circuit generates a first driving signal for driving the semiconductor elements, and generates a second driving signal that is the first driving signal delayed on the basis of the control signal, and applies the second driving signal to the first semiconductor element.Type: ApplicationFiled: May 29, 2019Publication date: July 21, 2022Applicant: Mitsubishi Electric CorporationInventors: Yasushi NAKAYAMA, Yoshiko TAMADA, Takayoshi MIKI, Shota MORISAKI, Yukio NAKASHIMA, Kenta UCHIDA, Keisuke KIMURA, Tomonobu MIHARA
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Patent number: 11336136Abstract: A stacked core includes: a stack formed by stacking a plurality of blanked members and including a first end surface and a second end surface; a first distinguishing hole formed in the stack and being open at the first end surface; and a second distinguishing hole formed in the stack and being open at the first end surface. The spatial shape of the first distinguishing hole is different from the spatial shape of the second distinguishing hole.Type: GrantFiled: December 18, 2019Date of Patent: May 17, 2022Assignees: Mitsui High-tec, Inc., HONDA MOTOR CO., LTD.Inventors: Akira Hyoguchi, Kenta Uchida
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Publication number: 20220147069Abstract: A gas safety device includes flow path, shutoff valve that shuts off flow path, flow rate measurement unit that measures a flow rate of gas, gas-side absolute pressure sensor that measures absolute pressure of the gas, atmosphere-side absolute pressure sensor that measures absolute pressure of atmospheric pressure, and pressure value transition detector that detects a transition state of the absolute pressure measured by gas-side absolute pressure sensor. Further provided are sensor drive controller that controls driving of atmosphere-side absolute pressure sensor in accordance with a value of pressure transition in pressure value transition detector, and gas pressure determination unit that calculates gas supply pressure from a difference between pressure values measured when the two sensors are driven.Type: ApplicationFiled: May 13, 2020Publication date: May 12, 2022Inventors: TAITI GYOUTOKU, KENJI YASUDA, KENTA UCHIDA
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Patent number: 11027556Abstract: An ink composition to be used in an ink jet recording apparatus includes a self-dispersing pigment, a soap-free resin, and water. When 15 g of the ink composition is weighed into a 50-mL sample bottle and the sample bottle is shaken 100 times for one minute, at 60 seconds after shaking, a foam height from a liquid level is 1 cm or less.Type: GrantFiled: December 23, 2019Date of Patent: June 8, 2021Inventor: Kenta Uchida
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Patent number: 10778001Abstract: An overcurrent detection circuit includes a di/dt detection circuit to detect di/dt of a current Ie that flows in an emitter of an IGBT, a control circuit to detect whether the current Ie is an overcurrent based on di/dt and to output a detection result to a driving circuit, and a mask circuit to set a mask period in which an operation of overcurrent determination in the control circuit is masked.Type: GrantFiled: April 18, 2017Date of Patent: September 15, 2020Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kenta Uchida, Ryosuke Nakagawa
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Patent number: 10759275Abstract: A vehicle drive apparatus, including: an electric motor rotating about an axial line in a vertical direction, a first planetary gear mechanism of a single pinion type and a second planetary gear mechanism of a double pinion type arranged inside the electric motor, a torque transmission mechanism transmitting a torque output from the second planetary gear mechanism to a pair of drive shafts. The torque transmission mechanism includes a first torque transmission unit transmitting a torque output from a sun gear of the second planetary gear mechanism to one of the pair of drive shafts, and a second torque transmission unit transmitting a torque output from a carrier of the second planetary gear mechanism to the other of the pair of drive shafts.Type: GrantFiled: August 10, 2018Date of Patent: September 1, 2020Assignee: Honda Motor Co., Ltd.Inventors: Kenta Uchida, Andrii Pydin
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Publication number: 20200235619Abstract: A rotor includes a rotor core having a magnet insertion slot, a set of magnet pieces accommodated in the magnet insertion slot; and a single insulating sheet wound around the magnet pieces. The insulating sheet is disposed between the magnet pieces and the rotor core and between the magnet pieces adjacent to each other, and at least a portion of the insulating sheet has adhesiveness and foamability.Type: ApplicationFiled: January 8, 2020Publication date: July 23, 2020Inventor: Kenta Uchida
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Publication number: 20200220396Abstract: A stator core has a core plate group extracted as a group in a plurality of rows from a single steel plate and includes an identification portion provided on an outer periphery of the stator core and serving as turning lamination identification and row identification. At least one of a shape and a position of the identification portion in the stator core having at least one row of the core plate group is different from that in the stator core having another row of the core plate group.Type: ApplicationFiled: December 30, 2019Publication date: July 9, 2020Inventor: Kenta Uchida
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Patent number: D937696Type: GrantFiled: October 23, 2019Date of Patent: December 7, 2021Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Hiroshi Nakai, Kenta Uchida, Kenji Yasuda