Patents by Inventor Ryo Miyakoshi
Ryo Miyakoshi 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: 11745565Abstract: It is an object to improve the reliability of a temperature adjusting device which cools an in-vehicle device such as a battery by using a refrigerant. A device temperature adjusting device 61 that is an in-vehicle device temperature adjusting device adjusts the temperature of a battery 55 mounted on a vehicle and includes a refrigerant circuit R having a compressor 2 which compresses a refrigerant, an outdoor heat exchanger 7 for letting the refrigerant radiate heat, and a refrigerant-heat medium heat exchanger 64 for cooling the battery 55 by letting the refrigerant absorb heat, and a control device 11. The control device 11 stops the compressor 2 on the basis of the fact that the refrigerant circuit R is blocked.Type: GrantFiled: April 15, 2020Date of Patent: September 5, 2023Assignee: SANDEN CORPORATIONInventors: Ryo Miyakoshi, Takashi Toyama
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Patent number: 11707964Abstract: A vehicle air conditioning device is provided which is capable of accurately judging the need for temperature regulation of an object of temperature regulation mounted in a vehicle and efficiently performing temperature regulation. A compressor 2 to compress a refrigerant, an indoor heat exchanger (radiator 4 and heat absorber 9) for exchanging heat between air supplied to a vehicle interior and the refrigerant, an outdoor heat exchanger 7 disposed outside the vehicle interior, and a control device 11 are provided to perform air conditioning of the vehicle interior. An equipment temperature adjusting device 61 for adjusting the temperature of the object of temperature regulation mounted in the vehicle is provided. The control device controls the equipment temperature adjusting device 61 on the basis of a gradient (?Tw) of a change in an index indicating the temperature of the object of temperature regulation.Type: GrantFiled: September 13, 2019Date of Patent: July 25, 2023Assignee: SANDEN CORPORATIONInventor: Ryo Miyakoshi
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Publication number: 20230137140Abstract: An air conditioner for a vehicle is provided which can realize suitable temperature control when having a plurality of evaporators even if the load in each evaporator fluctuates. An air conditioner 1 for a vehicle includes at least a compressor 2, a heat absorber 9 to evaporate a refrigerant, a refrigerant-heat medium heat exchanger 64, and a control device 11, and conditions air of a vehicle interior. The control device 11 calculates target numbers of revolutions TGNCc and TGNCcb of the compressor 2 required to control the temperature of the heat absorber 9 and the temperature of a heat medium cooled by the refrigerant-heat medium heat exchanger 64, respectively, and selects the maximum value of them to control the operation of the compressor 2.Type: ApplicationFiled: February 19, 2021Publication date: May 4, 2023Applicant: SANDEN CORPORATIONInventors: Kouhei YAMASHITA, Ryo MIYAKOSHI
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Publication number: 20230040052Abstract: Provided is an image forming method including: applying an ink to a print medium and heating the print medium to which the ink is applied at a heating temperature of 60 degrees C. or higher. The ink contains pigment-encapsulating resin particles comprising a pigment and a resin encapsulating the pigment. A proportion of the pigment alone exposed without being encapsulated with the resin is 10% by mass or less relative to solid components contained in the ink. Amass ratio of the pigment to the resin in the pigment-encapsulating resin particles is 0.25 or greater but 1.0 or less. A contact angle ?m (°) of the ink when the ink is dropped by 5 microliters onto a print medium at 73 degrees C. is 25° or less.Type: ApplicationFiled: July 15, 2022Publication date: February 9, 2023Applicant: Ricoh Company, Ltd.Inventors: Chikako HATTA, Ryo Miyakoshi, Takuya Yamazaki
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Patent number: 11506423Abstract: A vehicle air-conditioning apparatus is provided which is capable of expanding an effective range of a dehumidifying and heating mode to achieve comfortable vehicle interior air conditioning. A control device (controller) executes a dehumidifying and heating mode to let a refrigerant discharged from a compressor 2 radiate heat in a radiator 4, let a part of the refrigerant flow from a bypass circuit (refrigerant pipe 13F) to an indoor expansion valve 8, and let the residual refrigerant flow through an outdoor expansion valve 6. In the dehumidifying and heating mode, the control device has a state of controlling the operation of the compressor 2, based on a heat absorber temperature Te and executes a radiator temperature priority mode which enlarges a capability of the compressor when heat radiation in the radiator is insufficient.Type: GrantFiled: January 12, 2018Date of Patent: November 22, 2022Assignee: SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORPORATIONInventors: Ryo Miyakoshi, Kouhei Yamashita, Tetsuya Ishizeki
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Publication number: 20220314742Abstract: It is an object to improve the reliability of a temperature adjusting device which cools an in-vehicle device such as a battery by using a refrigerant. A device temperature adjusting device 61 that is an in-vehicle device temperature adjusting device adjusts the temperature of a battery 55 mounted on a vehicle and includes a refrigerant circuit R having a compressor 2 which compresses a refrigerant, an outdoor heat exchanger 7 for letting the refrigerant radiate heat, and a refrigerant-heat medium heat exchanger 64 for cooling the battery 55 by letting the refrigerant absorb heat, and a control device 11. The control device 11 stops the compressor 2 on the basis of the fact that the refrigerant circuit R is blocked.Type: ApplicationFiled: April 15, 2020Publication date: October 6, 2022Applicant: SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORPORATIONInventors: Ryo MIYAKOSHI, Takashi TOYAMA
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Publication number: 20220169872Abstract: An aqueous dispersion contains water and resin particles containing a resin, wherein the resin particles contains pigment-enclosed resin particles containing an inorganic pigment enclosed in the resin, wherein the pigment-enclosed resin particles have a 50 percent cumulative volume particle diameter (D50) of from 40 to 200 nm and a 90 percent cumulative volume particle diameter (D90) of from 70 to 500 nm as measured by laser diffraction scattering, wherein the pigment-enclosed resin particles have an average aspect ratio of from 1.0 to 1.5.Type: ApplicationFiled: November 24, 2021Publication date: June 2, 2022Applicant: Ricoh Company, Ltd.Inventors: Ryo MIYAKOSHI, Takuya Yamazaki, Chikako Hatta
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Publication number: 20220161467Abstract: A foamed sheet including: a polylactic acid; and a filler, wherein the foamed sheet has a compressive stress of 0.2 Mpa or less when the cushioning coefficient of the foamed sheet is 10 or less; and wherein the foamed sheet has a puncture strength of 2 N or more when the sheet thickness of the foamed sheet is 2 mm.Type: ApplicationFiled: November 23, 2021Publication date: May 26, 2022Inventors: Taichi NEMOTO, Shizuka HASHIDA, Yoshimitsu KUMAI, Ryo MIYAKOSHI, Tomoharu MIKI
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Publication number: 20220162415Abstract: Provided is a foam sheet includes a composition including polylactic acid. The polylactic acid includes, as monomer units. D-lactic acid and L-lactic acid, and an amount of the D-lactic acid or the L-lactic acid in the polylactic acid is 98 mol % or greater. An amount of the polylactic acid is 98% by mass or greater relative to a total amount of organic matter in the foam sheet. Bulk density of the foam sheet is 0.063 g/cm3 or greater but 0.125 g/cm3 or less.Type: ApplicationFiled: November 19, 2021Publication date: May 26, 2022Applicant: Ricoh Company, Ltd.Inventors: Yoshimitsu Kumai, Taichi Nemoto, Shizuka Hashida, Ryo Miyakoshi
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Publication number: 20220106490Abstract: Provided is an ink including: pigment-encapsulating resin particles encapsulating a pigment; and resin particles containing a resin different from a resin of the pigment-encapsulating resin particles.Type: ApplicationFiled: September 2, 2021Publication date: April 7, 2022Applicant: Ricoh Company, Ltd.Inventors: Chikako HATTA, Ryo Miyakoshi, Takuya Yamazaki
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Publication number: 20220106491Abstract: An aqueous dispersion contains emulsion resin particles that contains pigment enclosing emulsion resin particles enclosing an inorganic pigment, wherein the pigment enclosing emulsion resin particles have a 50 percent cumulative volume particle diameter (D50) of from 40 to 300 nm as measured by laser diffraction scattering method, wherein the pigment enclosing emulsion resin particles have an average aspect ratio of from 1.0 to 1.5.Type: ApplicationFiled: September 16, 2021Publication date: April 7, 2022Applicant: Ricoh Company, Ltd.Inventors: Ryo Miyakoshi, Takuya Yamazaki, Chikako Hatta
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Patent number: 11285732Abstract: White ink includes a crystalline urethane resin and a coloring material.Type: GrantFiled: March 30, 2020Date of Patent: March 29, 2022Assignee: Ricoh Company, LTD.Inventors: Chikako Hatta, Ryo Miyakoshi
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Patent number: 11247536Abstract: A vehicle air conditioner capable of making a determination that the dehumidification is unnecessary in a vehicle interior early to make a prompt transition from a dehumidifying mode to a heating mode and reduce power consumption is provided. A control device executes a heating mode to let a refrigerant discharged from a compressor 2 radiate heat in a radiator, decompress the refrigerant, and then let the refrigerant absorb heat in an outdoor heat exchanger 7, and a dehumidifying mode to let the refrigerant flow into the outdoor heat exchanger without flowing to the radiator to radiate heat therein, decompress the refrigerant, and then let the refrigerant absorb heat in a heat absorber 9 and let an auxiliary heater 23 generate heat. The control device shifts from the dehumidifying mode to the heating mode on the basis of the heat absorber suction air temperature Tevain being lowered more than a target heat absorber temperature TEO.Type: GrantFiled: July 12, 2018Date of Patent: February 15, 2022Assignee: Sanden Automotive Climate Systems CorporationInventors: Kohei Yamashita, Ryo Miyakoshi
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Patent number: 11247533Abstract: A heating temperature is appropriately estimated according to an operation mode to achieve comfortable vehicle interior air conditioning. A vehicular air conditioning device 1 includes a compressor 2, an air flow passage 3, a radiator 4 for heating air to be supplied to a vehicle interior, a heat absorber 9 for cooling the air to be supplied to the vehicle interior, and a heat pump controller. The heat pump controller calculates a heating temperature TH being the temperature of air on a leeward side of the radiator and use the heating temperature in control, and calculates the heating temperature TH using an estimation formula which differs depending on the operation mode.Type: GrantFiled: September 7, 2017Date of Patent: February 15, 2022Assignee: Sanden Automotive Climate Systems CorporationInventors: Takafumi Aoki, Ryo Miyakoshi, Kouhei Yamashita
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Publication number: 20220032725Abstract: A vehicle air conditioning device is provided which is capable of accurately judging the need for temperature regulation of an object of temperature regulation mounted in a vehicle and efficiently performing temperature regulation. A compressor 2 to compress a refrigerant, an indoor heat exchanger (radiator 4 and heat absorber 9) for exchanging heat between air supplied to a vehicle interior and the refrigerant, an outdoor heat exchanger 7 disposed outside the vehicle interior, and a control device 11 are provided to perform air conditioning of the vehicle interior. An equipment temperature adjusting device 61 for adjusting the temperature of the object of temperature regulation mounted in the vehicle is provided. The control device controls the equipment temperature adjusting device 61 on the basis of a gradient (?Tw) of a change in an index indicating the temperature of the object of temperature regulation.Type: ApplicationFiled: September 13, 2019Publication date: February 3, 2022Applicant: SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORPORATIONInventor: Ryo MIYAKOSHI
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Patent number: 11203251Abstract: There is disclosed a vehicle air conditioning device which inhibits generation of noise in a solenoid valve 30 disposed on an inlet side of a radiator 4 and improves durability of the solenoid valve. A second operation mode is executed to shut off an outdoor expansion valve 6, close the solenoid valve 30, open a solenoid valve 40 and thereby send a refrigerant discharged from a compressor 2 through a bypass pipe 35 to an outdoor heat exchanger 7. When a first operation mode to open the solenoid valve 30 and close the solenoid valve 40 and thereby send the refrigerant to the radiator 4 is shifted to the second operation mode, a controller opens the solenoid valve 30 at a timing to stop the compressor 2.Type: GrantFiled: April 5, 2017Date of Patent: December 21, 2021Assignee: SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORPORATIONInventors: Tetsuya Ishizeki, Kohei Yamashita, Ryo Miyakoshi
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Patent number: 11192428Abstract: A vehicle air-conditioning device is provided which is capable of eliminating or suppressing vibration and noise generated due to the application of a counterpressure to an opening/closing valve. The vehicle air-conditioning device includes a refrigerant circuit R having a compressor 2, a radiator 4 to perform heat exchange between a refrigerant and air, an outdoor heat exchanger 7, a heat absorber 9, and a solenoid valve 40. The compressor 2 and the solenoid valve 40 are controlled to air-condition a vehicle interior. A decompression speed at a refrigerant inflow side of the solenoid valve when the compressor 2 is stopped and the solenoid valve 40 is closed is faster than that at a refrigerant outflow side thereof. When operation is stopped from a state in which the compressor 2 is operating with the solenoid valve 40 being in an opened state, the opened state of the solenoid valve 40 is maintained even after the compressor 2 is stopped.Type: GrantFiled: April 23, 2018Date of Patent: December 7, 2021Assignee: Sanden Automotive Climate Systems CorporationInventors: Ryo Miyakoshi, Megumi Shigeta, Osamu Takazawa, Kohei Yamashita
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Patent number: 11104205Abstract: A vehicle air-conditioning device is provided which is capable of eliminating inconvenience due to a reduction in heating capability when changing from heat absorption from outdoor air to heat absorption from a heat medium. A heat-generating equipment temperature adjusting device 61 has a heat medium heating heater 66 and a refrigerant-heat medium heat exchanger 64. The vehicle air-conditioning device has first and second heat medium heat absorption/heating modes to let a refrigerant discharged from a compressor 2 radiate heat in a radiator 4, decompress the refrigerant from which the heat has been radiated, and then let the refrigerant absorb heat in the refrigerant-heat medium heat exchanger. When the temperature of the heat medium is a predetermined threshold T1 or less upon changing from a heating operation to the first and second heat medium heat absorption/heating modes, the heat medium is heated by the heat medium heating heater before the changing.Type: GrantFiled: July 12, 2018Date of Patent: August 31, 2021Assignee: Sanden Automotive Climate Systems CorporationInventors: Tetsuya Ishizeki, Ryo Miyakoshi, Kohei Yamashita
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Patent number: 11097599Abstract: There is provided a vehicle air conditioning device of a heat pump system which improves comfortability when changing to heating only by an auxiliary heating device. The device includes a heating medium circulating circuit 23 to heat air to be supplied from an air flow passage 3 to a vehicle interior, and when shifting to the heating of the vehicle interior only by the heating medium circulating circuit 23 in a heating mode, a controller executes a shifting control to increase a heating capability of the heating medium circulating circuit 23 prior to stopping a compressor 2 and decrease a heating capability of a radiator 4 in accordance with the increase of the heating capability of the heating medium circulating circuit 23.Type: GrantFiled: February 21, 2017Date of Patent: August 24, 2021Assignees: HONDA MOTOR CO., LTD., SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORPORATIONInventors: Ryo Miyakoshi, Kenichi Suzuki, Kohei Yamashita
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Publication number: 20210245577Abstract: There is provided a vehicle air conditioning apparatus capable of removing frost formed on an outdoor heat exchanger at the same time as cooling of a battery. The vehicle air conditioning apparatus performs the operation in a first battery cooling mode, a second battery cooling mode, or a solo battery cooling mode, when it is determined that the battery needs to be cooled and also determined that the frost formed on the outdoor heat exchanger needs to be removed. By this means, it is possible to cool the battery and melt the frost formed on the outdoor heat exchanger at the same time by the battery cooling operation, and therefore it is possible to reduce the power consumption compared to the case where the battery cooling operation and the defrosting operation are performed individually.Type: ApplicationFiled: June 7, 2019Publication date: August 12, 2021Applicant: SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORPORATIONInventor: Ryo MIYAKOSHI