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).

  • Patent number: 11951662
    Abstract: 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: Grant
    Filed: November 23, 2021
    Date of Patent: April 9, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Taichi Nemoto, Shizuka Hashida, Yoshimitsu Kumai, Ryo Miyakoshi, Tomoharu Miki
  • Publication number: 20240059125
    Abstract: A vehicle air-conditioning apparatus according to the present invention includes an air-conditioning refrigerant circuit that circulates a refrigerant to cool an inside of a vehicle, a branching refrigerant circuit that branches from the air-conditioning refrigerant circuit and cools a heat generating device, a branching control valve that is provided in the branching refrigerant circuit and controls a flow of the refrigerant flowing into the branching refrigerant circuit from the air-conditioning refrigerant circuit, and a control unit that controls an operation of the air-conditioning refrigerant circuit and the branching control valve. After transition to an operation of cooling the inside of the vehicle by the air-conditioning refrigerant circuit and cooling the heat generating device by the branching refrigerant circuit in parallel, the control unit opens and closes the branching control valve in accordance with a cooling capacity state of the air-conditioning refrigerant circuit.
    Type: Application
    Filed: August 26, 2021
    Publication date: February 22, 2024
    Inventors: Ryo MIYAKOSHI, Yoshiki SHIBAOKA
  • Publication number: 20240034851
    Abstract: Provided is a method of manufacturing a molded body. The method includes: producing a foam sheet having a crystallinity degree A of 7.5% or less by using a composition containing polylactic acid comprising 98 mol % or more of any one among a D-isomer of lactic acid and an L-isomer of lactic acid as a constituent monomer unit; and molding the foam sheet with heat to produce a molded body, and a difference (B?A) between the crystallinity degree A of the foam sheet and the crystallinity degree B of the molded body is 20.0% or more and 40.0% or less.
    Type: Application
    Filed: July 21, 2023
    Publication date: February 1, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Yuya Hirokawa, Ryo Miyakoshi, Satoshi Ogawa, Yoshimitsu Kumai, Risa Tamura
  • Publication number: 20240025231
    Abstract: A vehicle air conditioning apparatus including: a refrigerant circuit includes: a compressor to compress refrigerant; a heat absorbing device to absorb heat from air to be supplied to a vehicle compartment; and a temperature-adjusted subject heat exchanger; a device temperature adjustment circuit connected to the refrigerant circuit via the temperature-adjusted subject heat exchanger, and configured to adjust a temperature of a temperature-adjusted subject mounted in a vehicle by the temperature-adjusted subject heat exchanger; and a controller configured to control the refrigerant circuit and the device temperature adjustment circuit.
    Type: Application
    Filed: November 19, 2021
    Publication date: January 25, 2024
    Applicant: SANDEN CORPORATION
    Inventors: Kouhei YAMASHITA, Ryo MIYAKOSHI
  • Patent number: 11745565
    Abstract: 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: Grant
    Filed: April 15, 2020
    Date of Patent: September 5, 2023
    Assignee: SANDEN CORPORATION
    Inventors: Ryo Miyakoshi, Takashi Toyama
  • Patent number: 11707964
    Abstract: 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: Grant
    Filed: September 13, 2019
    Date of Patent: July 25, 2023
    Assignee: SANDEN CORPORATION
    Inventor: Ryo Miyakoshi
  • Publication number: 20230137140
    Abstract: 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: Application
    Filed: February 19, 2021
    Publication date: May 4, 2023
    Applicant: SANDEN CORPORATION
    Inventors: Kouhei YAMASHITA, Ryo MIYAKOSHI
  • Publication number: 20230040052
    Abstract: 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: Application
    Filed: July 15, 2022
    Publication date: February 9, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Chikako HATTA, Ryo Miyakoshi, Takuya Yamazaki
  • Patent number: 11506423
    Abstract: 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: Grant
    Filed: January 12, 2018
    Date of Patent: November 22, 2022
    Assignee: SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORPORATION
    Inventors: Ryo Miyakoshi, Kouhei Yamashita, Tetsuya Ishizeki
  • Publication number: 20220314742
    Abstract: 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: Application
    Filed: April 15, 2020
    Publication date: October 6, 2022
    Applicant: SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORPORATION
    Inventors: Ryo MIYAKOSHI, Takashi TOYAMA
  • Publication number: 20220169872
    Abstract: 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: Application
    Filed: November 24, 2021
    Publication date: June 2, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Ryo MIYAKOSHI, Takuya Yamazaki, Chikako Hatta
  • Publication number: 20220161467
    Abstract: 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: Application
    Filed: November 23, 2021
    Publication date: May 26, 2022
    Inventors: Taichi NEMOTO, Shizuka HASHIDA, Yoshimitsu KUMAI, Ryo MIYAKOSHI, Tomoharu MIKI
  • Publication number: 20220162415
    Abstract: 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: Application
    Filed: November 19, 2021
    Publication date: May 26, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Yoshimitsu Kumai, Taichi Nemoto, Shizuka Hashida, Ryo Miyakoshi
  • Publication number: 20220106491
    Abstract: 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: Application
    Filed: September 16, 2021
    Publication date: April 7, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Ryo Miyakoshi, Takuya Yamazaki, Chikako Hatta
  • Publication number: 20220106490
    Abstract: 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: Application
    Filed: September 2, 2021
    Publication date: April 7, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Chikako HATTA, Ryo Miyakoshi, Takuya Yamazaki
  • Patent number: 11285732
    Abstract: White ink includes a crystalline urethane resin and a coloring material.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: March 29, 2022
    Assignee: Ricoh Company, LTD.
    Inventors: Chikako Hatta, Ryo Miyakoshi
  • Patent number: 11247536
    Abstract: 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: Grant
    Filed: July 12, 2018
    Date of Patent: February 15, 2022
    Assignee: Sanden Automotive Climate Systems Corporation
    Inventors: Kohei Yamashita, Ryo Miyakoshi
  • Patent number: 11247533
    Abstract: 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: Grant
    Filed: September 7, 2017
    Date of Patent: February 15, 2022
    Assignee: Sanden Automotive Climate Systems Corporation
    Inventors: Takafumi Aoki, Ryo Miyakoshi, Kouhei Yamashita
  • Publication number: 20220032725
    Abstract: 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: Application
    Filed: September 13, 2019
    Publication date: February 3, 2022
    Applicant: SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORPORATION
    Inventor: Ryo MIYAKOSHI
  • Patent number: 11203251
    Abstract: 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: Grant
    Filed: April 5, 2017
    Date of Patent: December 21, 2021
    Assignee: SANDEN AUTOMOTIVE CLIMATE SYSTEMS CORPORATION
    Inventors: Tetsuya Ishizeki, Kohei Yamashita, Ryo Miyakoshi