Patents by Inventor Yoshihiko Okumura

Yoshihiko Okumura 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).

  • Publication number: 20230248860
    Abstract: Provided is an inactivation device for bacteria and/or viruses and a method of inactivation treatment for bacteria and/or viruses. The device and the method are capable of efficiently inactivating bacteria and/or viruses present in a space. The inactivation device for bacteria and/or viruses includes a light source section configured to emit ultraviolet light having a peak wavelength in a range from 190 nm or more to less than 240 nm, and a controller configured to control the light source section to execute a main operation mode including a first lighting operation and a second lighting operation in which ultraviolet light is emitted with lower light intensity than that of the first lighting operation.
    Type: Application
    Filed: July 29, 2021
    Publication date: August 10, 2023
    Applicant: Ushio Denki Kabushiki Kaisha
    Inventor: Yoshihiko Okumura
  • Publication number: 20230149578
    Abstract: The inactivation device includes: an ultraviolet light irradiation unit that irradiates an enclosed space where a human can enter and leave with light containing ultraviolet light having a wavelength of inactivating the microorganisms and/or viruses that are harmful to the human body; a sensor that detects presence of the human in the enclosed space; and a control unit that controls irradiation and non-irradiation with the light from the ultraviolet light irradiation unit based on a detection signal from the sensor. The control unit controls the ultraviolet light irradiation unit to irradiate a space including the human with the light for a predetermined time in accordance with the wavelength of the ultraviolet light contained in the light radiated from the ultraviolet light irradiation unit, during a period in which the human is determined to be present in the enclosed space based on the detection signal from the sensor.
    Type: Application
    Filed: March 4, 2021
    Publication date: May 18, 2023
    Applicant: Ushio Denki Kabushiki Kaisha
    Inventors: Tatsushi Igarashi, Hiroyuki Ohashi, Yoshihiko Okumura, Atsushi Imamura
  • Patent number: 11642425
    Abstract: Provided are a method and an apparatus for inactivating bacteria or viruses attached to an object while suppressing generation of a strange odor. The method for inactivating bacteria or viruses includes a step (a) of irradiating with ultraviolet light having an optical output at a specific wavelength in a range of 200 nm to 235 nm. The step (a) is a step of irradiating with the ultraviolet light is performed so that an irradiance (X) [mW/cm2] (X>0) and an integrated irradiation dose within two hours (Y) [mJ/cm2] satisfy the following formula (1) 0<Y<10.704X?0.373??(1).
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: May 9, 2023
    Assignee: Ushio Denki Kabushiki Kaisha
    Inventor: Yoshihiko Okumura
  • Publication number: 20220323624
    Abstract: Disclosed herein is an inactivation apparatus for inactivating microorganisms and/or viruses, comprising: an ultraviolet light irradiation unit configured to irradiate a surface or a space in a facility or a vehicle that a human or an animal is present with light including ultraviolet light having a wavelength that inactivates the microorganisms and/or viruses; and a controller unit configured to control irradiation and non-irradiation of the light by the ultraviolet light irradiation unit. The ultraviolet light included in the light emitted from the ultraviolet light irradiation unit is light having a wavelength range between 190 nm to 235 nm. The controller unit controls the ultraviolet light irradiation unit to alternately repeat a light-emitting operation and a non-light-emitting operation of the light based on the wavelength of the ultraviolet light included in the light irradiated from the ultraviolet light irradiation unit.
    Type: Application
    Filed: March 1, 2021
    Publication date: October 13, 2022
    Applicant: Ushio Denki Kabushiki Kaisha
    Inventors: Tatsushi IGARASHI, Hiroyuki OHASHI, Yoshihiko OKUMURA, Atsushi IMAMURA
  • Publication number: 20220241444
    Abstract: Disclosed herein is an inactivation apparatus for inactivating microorganisms and/or viruses by emitting light. The inactivation apparatus comprises: a light irradiation unit including a light source configured to emit light having a wavelength range that inactivates microorganisms and/or viruses, the light source emitting the light in a space where a human is present and the microorganisms and/or viruses exists; and a controller unit configured to control irradiation of the light by the light source. The light is ultraviolet light having a wavelength range of 200 nm to 235 nm, and the controller unit controls the light source to limit an effective incident irradiance of the ultraviolet light on an eye of the human present in the space to be within a certain irradiance range.
    Type: Application
    Filed: February 1, 2022
    Publication date: August 4, 2022
    Applicant: Ushio Denki Kabushiki Kaisha
    Inventors: Tatsushi IGARASHI, Yoshihiko Okumura
  • Publication number: 20220062452
    Abstract: Disclosed herein is an inactivation apparatus for inactivating microorganisms and/or viruses on a surface of an object, comprising: an ultraviolet light irradiation unit having a light emission surface configured to emit light including ultraviolet light having a wavelength that inactivates the microorganisms and/or viruses; and a controller unit configured to control irradiation of the light by the ultraviolet light irradiation unit, the ultraviolet light included in the light emitted from the light emission surface being ultraviolet light having a center wavelength of 200 nm to 230 nm, and the controller unit controlling the ultraviolet light irradiation unit to irradiate the surface of the object with the ultraviolet light to form a region, on tire surface of the object, in which irradiance of the ultraviolet light having the wavelength of 200 nm to 230 nm becomes equal to or greater than 10 ?W/cm2.
    Type: Application
    Filed: July 20, 2021
    Publication date: March 3, 2022
    Applicant: Ushio Denki Kabushiki Kaisha
    Inventor: Yoshihiko OKUMURA
  • Publication number: 20220040344
    Abstract: Provided are a method and an apparatus for inactivating bacteria or viruses attached to an object while suppressing generation of a strange odor. The method for inactivating bacteria or viruses includes a step (a) of irradiating with ultraviolet light having an optical output at a specific wavelength in a range of 200 nm to 235 nm. The step (a) is a step of irradiating with the ultraviolet light is performed so that an irradiance (X) [mW/cm2] (X>0) and an integrated irradiation dose within two hours (Y) [mJ/cm2] satisfy the following formula (1). 0<Y<10.704X?0.
    Type: Application
    Filed: August 4, 2021
    Publication date: February 10, 2022
    Applicant: Ushio Denki Kabushiki Kaisha
    Inventor: Yoshihiko OKUMURA
  • Patent number: 11077739
    Abstract: In a vehicular air conditioning unit, an air conditioning case includes a space forming portion that forms a drainage space which is partitioned from an air passage. The space forming portion includes a drainage portion that discharges water from inside the air conditioning case to outside of the air conditioning case. Further, the space forming portion includes an upstream side communication portion that communicates the drainage space to an upstream side space on an air flow upstream side of the blower in the air passage. Further, the space forming portion includes a downstream side communication portion that communicates the drainage space to a downstream side space on the air flow downstream side of the blower in the air passage.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: August 3, 2021
    Assignee: DENSO CORPORATION
    Inventors: Ryo Kobayashi, Yoshihiko Okumura, Yasuhiro Sekito, Shinya Kato
  • Patent number: 10926604
    Abstract: An air conditioner for performing air-conditioning of an interior of a vehicle cabin includes a casing, an evaporator, a blower, a controller, and a cooling passage. The casing defines a ventilation passage through which air flows from an air introduction port toward an air outlet. The evaporator cools the air flowing through the ventilation passage. The blower is disposed on a downstream side with respect to the evaporator in the ventilation passage and generates an airflow in the ventilation passage. The controller controls an output from the blower. The cooling passage causes a position located on a downstream side with respect to the blower in the ventilation passage to communicate with a position located on an upstream side with respect to the evaporator in the ventilation passage. A controller is installed in the cooling passage.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: February 23, 2021
    Assignee: DENSO CORPORATION
    Inventors: Ryo Kobayashi, Yoshihiko Okumura, Yasuhiro Sekito, Shinya Kato, Tetsuya Kono, Yuki Tsumagari, Kira Oiwa
  • Publication number: 20200307348
    Abstract: An air conditioner for performing air-conditioning of an interior of a vehicle cabin includes a casing, an evaporator, a blower, a controller, and a cooling passage. The casing defines a ventilation passage through which air flows from an air introduction port toward an air outlet. The evaporator cools the air flowing through the ventilation passage. The blower is disposed on a downstream side with respect to the evaporator in the ventilation passage and generates an airflow in the ventilation passage. The controller controls an output from the blower. The cooling passage causes a position located on a downstream side with respect to the blower in the ventilation passage to communicate with a position located on an upstream side with respect to the evaporator in the ventilation passage. A controller is installed in the cooling passage.
    Type: Application
    Filed: February 23, 2017
    Publication date: October 1, 2020
    Inventors: Ryo KOBAYASHI, Yoshihiko OKUMURA, Yasuhiro SEKITO, Shinya KATO, Tetsuya KONO, Yuki TSUMAGARI, Kira OIWA
  • Patent number: 10696126
    Abstract: An air-conditioning unit for a vehicle has a case, a blower, a cooling heat exchanger and a heating heat exchanger. The cooling heat exchanger is located upstream of the blower inside the case. The heating heat exchanger is located downstream of the blower inside the case. The ventilation passage includes a before-heating passage extending from an air discharge port of the blower toward an air inlet of the heating heat exchanger. The before-heating passage includes, as a part of the before-heating passage, a flow-changing path that is curved to change a flow direction of the air discharged from the blower.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: June 30, 2020
    Assignee: DENSO CORPORATION
    Inventors: Shinya Kato, Yoshihiko Okumura, Ryo Kobayashi, Yasuhiro Sekito, Tetsuya Kono, Yuki Tsumagari, Kira Oiwa
  • Publication number: 20190152299
    Abstract: In a vehicular air conditioning unit, an air conditioning case includes a space forming portion that forms a drainage space which is partitioned from an air passage. The space forming portion includes a drainage portion that discharges water from inside the air conditioning case to outside of the air conditioning case. Further, the space forming portion includes an upstream side communication portion that communicates the drainage space to an upstream side space on an air flow upstream side of the blower in the air passage. Further, the space forming portion includes a downstream side communication portion that communicates the drainage space to a downstream side space on the air flow downstream side of the blower in the air passage.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Inventors: Ryo KOBAYASHI, Yoshihiko OKUMURA, Yasuhiro SEKITO, Shinya KATO
  • Publication number: 20190077213
    Abstract: An air-conditioning unit for a vehicle has a case, a blower, a cooling heat exchanger and a heating heat exchanger. The cooling heat exchanger is located upstream of the blower inside the case. The heating heat exchanger is located downstream of the blower inside the case. The ventilation passage includes a before-heating passage extending from an air discharge port of the blower toward an air inlet of the heating heat exchanger. The before-heating passage includes, as a part of the before-heating passage, a flow-changing path that is curved to change a flow direction of the air discharged from the blower.
    Type: Application
    Filed: November 9, 2018
    Publication date: March 14, 2019
    Inventors: Shinya KATO, Yoshihiko OKUMURA, Ryo KOBAYASHI, Yasuhiro SEKITO, Tetsuya KONO, Yuki TSUMAGARI, Kira OIWA
  • Publication number: 20110162409
    Abstract: A driving apparatus for an air conditioning system has a first and a second electrical actuators for driving air control doors, wherein the first and second actuators are accommodated in a common housing so that they are modularized to each other. The driving apparatus further has a third electrical actuator for driving another air control door, wherein the third actuator is provided at a position separated from the housing. Driving circuits for the first to third actuators are formed on a single IC chip or on a single electrical circuit board. The driving circuits formed on the IC chip or the electrical circuit board is accommodated in the housing for the first and second actuators.
    Type: Application
    Filed: January 4, 2011
    Publication date: July 7, 2011
    Applicant: DENSO CORPORATION
    Inventors: Yoshihiko Okumura, Yasuhiro Sekito, Kazuhiro Miyazawa, Takayoshi Kawai, Tatsuhiro Matsuki
  • Patent number: 7931075
    Abstract: In an air conditioner for a vehicle, a blower of a blower unit includes a double-axial motor having a rotation axis positioned approximately in a vehicle top-bottom direction, a pair of centrifugal fans located at two sides of the double-axial motor in an axial direction, and a pair of scroll casings in which the centrifugal fans are accommodated, respectively. The two air outlet portions are arranged in the vehicle top-bottom direction, and are adjacent to be joined to an air inlet portion of the air conditioning unit, substantially as a single air outlet. Furthermore, the two air outlet portions are located approximately at the same height position as that of the air passing portion of the cooling heat exchanger, and have a height dimension (H2) at its downstream end side that is approximately equal to a height dimension (H1) of the air passing portion of the cooling heat exchanger.
    Type: Grant
    Filed: March 31, 2008
    Date of Patent: April 26, 2011
    Assignee: Denso Corporation
    Inventors: Koji Ito, Yoshihiro Goto, Yoshihiko Okumura
  • Patent number: 7841393
    Abstract: A heat exchanger has tubes, an inlet tank and an outlet tank. The inlet tank and the outlet tank are coupled to ends of the tubes. The inlet tank and the outlet tank have an inlet port and an outlet port, respectively, on ends thereof. The heat exchanger further has a cover member disposed in at least one of the inlet tank and the outlet tank. The cover member partly covers openings of the ends of predetermined tubes of the tubes, the predetermined tubes being closer to at least one of the inlet port and the outlet port.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: November 30, 2010
    Assignee: Denso Corporation
    Inventors: Yasuhiro Sekito, Yoshihiko Okumura, Toshihiko Muraki, Mitsugu Nakamura
  • Patent number: 7808620
    Abstract: A testing device equipped with: a microchip having a receiver for a test fluid, a discharge lamp which emits light into the microchip test fluid receiver, a light source housing in which the discharge lamp is located, and an arithmetic calculation mechanism, which calculates the concentration of the component to be detected, based on the intensity of the light emitted from the test fluid container unit. To reduce the size of the device and to shield the arithmetic calculation mechanism from electromagnetic waves generated around the light source, the light source housing is equipped with shielding connected to the ground on the outside of the light source housing made of insulating material. The light source housing is positioned within an enclosure of the testing device holding the microchip and containing the arithmetic calculation mechanism, analysis output device(s), and other components of the testing device.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: October 5, 2010
    Assignee: Ushiodenki Kabushiki Kaisha
    Inventors: Yoshimasa Ogawa, Katsuoki Miyasu, Yoshihiko Okumura
  • Patent number: 7779900
    Abstract: Both an air mixing door (9) for the cold air for adjusting a passage area of the cold air passage (6); and an air mixing door (10) for the hot air for adjusting a passage area of the hot air passage (7) are composed of a sliding door for adjusting the passage area when the air mixing door (9) for the cold air and the air mixing door (10) for the hot air are slid in a direction perpendicular to the flow of air in both the passages (6, 7), and while one of the air mixing door (9) for the cold air and the air mixing door (10) for the hot air is maintaining one of the passages (6, 7) in a fully opened state, an operating position of the other door is adjusted so that a passage area of the other passage is adjusted and a temperature of the air blowing out into a vehicle compartment is adjusted.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: August 24, 2010
    Assignee: Denso Corporation
    Inventors: Koji Ito, Takahiro Tokunaga, Yoshihiko Okumura
  • Patent number: 7699096
    Abstract: The first cold air flow door 26 and the first hot air flow door 24 for adjusting the blowout air temperature are arranged in the first air passage, and the second cold air flow door 27 and the second hot air flow door 25 for adjusting the blowout air temperature are arranged in the second air passage. When a larger target air flow volume between the target air flow volume on the first air passage side and the target air flow volume on the second air passage side is selected so as to determine an air flow volume of the blower, in an air passage to which the smaller target air flow volume is applied, while the ratio of the cold air flow volume to the hot air flow volume is being maintained constant, the passage opening area is throttled by the cold air flow door and the hot air flow door.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: April 20, 2010
    Assignee: Denso Corporation
    Inventors: Shinji Naruse, Yoshihiko Okumura
  • Publication number: 20090250194
    Abstract: Both an air mixing door (9) for the cold air for adjusting a passage area of the cold air passage (6); and an air mixing door (10) for the hot air for adjusting a passage area of the hot air passage (7) are composed of a sliding door for adjusting the passage area when the air mixing door (9) for the cold air and the air mixing door (10) for the hot air are slid in a direction perpendicular to the flow of air in both the passages (6, 7), and while one of the air mixing door (9) for the cold air and the air mixing door (10) for the hot air is maintaining one of the passages (6, 7) in a fully opened state, an operating position of the other door is adjusted so that a passage area of the other passage is adjusted and a temperature of the air blowing out into a vehicle compartment is adjusted.
    Type: Application
    Filed: June 8, 2009
    Publication date: October 8, 2009
    Applicant: DENSO CORPORATION
    Inventors: Koji Ito, Takahiro Tokunaga, Yoshihiko Okumura