Patents by Inventor Daisuke Oka

Daisuke Oka 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: 20240119621
    Abstract: The present disclosure provides a system for supporting a movement of a moving body in a predetermined area. The system acquires an image captured by an infrastructure camera such that the image includes a plurality of markers arranged in the predetermined area. The system compares the image acquired this time and the image acquired previous time. The system detects a position change marker among the plurality of markers whose position in the image acquired previous time changes from that in the image acquired this time. The system determines that the infrastructure camera is out of position when it is detected that number of the position change marker is equal to or more than a predetermined number. The system determines that the infrastructure camera is not out of position when it is detected that number of the position change marker is less than the predetermined number.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 11, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroya Chiba, Koji Morita, Yuhei Oka, Daisuke Kakuma
  • Patent number: 11935731
    Abstract: A measurement part controls power supplied to a heater such that a temperature of the heater becomes constant by using a heater controller, and measures the supplied power in an unignited state in which plasma is not ignited and a transient state in which the power supplied to the heater decreases after plasma is ignited. A parameter calculator performs fitting on a calculation model, which includes a heat input amount from the plasma as a parameter, for calculating the power supplied in the transient state by using the power supplied in the unignited state and the transient state and measured by the measurement part, and calculates the heat input amount. An output part configured to output information based on the heat input amount calculated by the parameter calculator.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: March 19, 2024
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Daisuke Hayashi, Yoshihiro Umezawa, Shinsuke Oka
  • Publication number: 20220202594
    Abstract: A prosthetic knee joint includes a thigh connection part, a lower leg part coupled to the thigh connection part rotatably around an axis of a knee, an actuator coupled to the thigh connection part and the lower leg part, where the actuator is configured to restrict or assist movement of the thigh connection part, a detector unit for obtaining information about how the thigh connection part and the lower leg part are relatively positioned, a control unit for controlling driving of the actuator based on a result detected by the detector unit, and an estimating unit for estimating a state of the user's movement based on the result detected by the detector unit. When the estimating unit estimates that the user is not walking, the control unit sets a longer control cycle for the driving of the actuator than when the estimating unit estimates that the user is walking.
    Type: Application
    Filed: December 21, 2021
    Publication date: June 30, 2022
    Inventors: Hiroaki HASHIMOTO, Masakazu SAITO, Taishiro MISAO, Hiroto MIYAMOTO, Daisuke OKA
  • Publication number: 20220192845
    Abstract: A prosthetic leg system includes a prosthetic leg, a system controller, and a system memory. The system controller includes a driving information acquirer structured to acquire driving information representing a driving state of a driving mechanism of the prosthetic leg and an environmental information acquirer structured to acquire environmental information around the prosthetic leg. The system controller configures a system for calculating power consumption of the prosthetic leg, a system for estimating a state of the prosthetic leg, and a system for estimating a physical condition of a user of the prosthetic leg.
    Type: Application
    Filed: December 22, 2021
    Publication date: June 23, 2022
    Inventors: Daisuke OKA, Zhiqin Wang, Takashi TOYODA
  • Patent number: 11332911
    Abstract: Provided is a construction machine that can prevent a machine body from being lowered since a blade is not put into a float state even where a misoperation is made by an operator when the machine body is in a jacked-up state, and that can perform a favorable leveling operation by putting the blade into the float state in accordance with an operator's operation when the machine body is not in the jacked-up state. A hydraulic excavator includes a controller 42 that determines whether or not the machine body is in a jacked-up state and controls a float valve 41. In the case where it is determined that the machine body is not in the jacked-up state, the controller 42 changes over the float valve 41 to a float position V and invalidates an operation of a blade control valve 22, in accordance with a float instruction.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: May 17, 2022
    Assignee: Hitachi Construction Machinery Tierra Co., Ltd.
    Inventors: Yoshifumi Takebayashi, Hajime Yoshida, Natsuki Nakamura, Daisuke Oka
  • Patent number: 11280059
    Abstract: A hydraulic drive system for a hydraulic excavator that enables leveling work and a jack-up operation by a blade in a float state, that can prevent a body from falling even when an operator has falsely operated the hydraulic excavator during the jack-up operation by the blade, and that yet can perform favorable leveling work with the blade turned into the float state is provided. A float switch 37, a float valve 38, and a controller 34 are provided, the float valve 38 is changed over to a float position VI upon operating the float switch 37 when the blade is not in a jack-up state, the float valve 38 is changed over from the float position VI to a normal position V when the float valve 38 is in a state of being at the float position VI and an operation lever device 22 has been operated, and the float valve 38 is kept at the normal position V when the float valve 38 is at the normal position V and the float switch 37 has been operated in the jack-up state.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: March 22, 2022
    Assignee: Hitachi Construction Machinery Tierra Co., Ltd.
    Inventors: Kazushige Mori, Hajime Yoshida, Yoshifumi Takebayashi, Natsuki Nakamura, Daisuke Oka
  • Publication number: 20210332560
    Abstract: Provided is a construction machine that can prevent a machine body from being lowered since a blade is not put into a float state even where a misoperation is made by an operator when the machine body is in a jacked-up state, and that can perform a favorable leveling operation by putting the blade into the float state in accordance with an operator's operation when the machine body is not in the jacked-up state. A hydraulic excavator includes a controller 42 that determines whether or not the machine body is in a jacked-up state and controls a float valve 41. In the case where it is determined that the machine body is not in the jacked-up state, the controller 42 changes over the float valve 41 to a float position V and invalidates an operation of a blade control valve 22, in accordance with a float instruction.
    Type: Application
    Filed: September 29, 2017
    Publication date: October 28, 2021
    Inventors: Yoshifumi TAKEBAYASHI, Hajime YOSHIDA, Natsuki NAKAMURA, Daisuke OKA
  • Publication number: 20210317111
    Abstract: The present invention relates to a medicament for treating and/or preventing inflammatory bowel disease, comprising a quinolone compound of the formula shown below as an active ingredient.
    Type: Application
    Filed: August 9, 2019
    Publication date: October 14, 2021
    Inventors: Isao SHIBUYA, Daisuke OKA, Kazuyuki FUJII, Hiroko TAKAGI, Masayoshi SATO, Takako NAKASHIMA, Fusako IWATA, Makoto MATSUMOTO
  • Patent number: 11111650
    Abstract: When a swing motor and a boom cylinder are driven simultaneously, a hydraulic drive system appropriately adjusts a distribution of torques between hydraulic pumps and feeds back a torque actually consumed by the hydraulic pump for actuating the swing motor accurately to the hydraulic pump for actuating the boom cylinder. To that end, when boom raising and swinging are performed simultaneously, the hydraulic drive system corrects an allowable torque of a hydraulic pump 302 that supplies a hydraulic fluid to a swing motor 3c so as to be lowered by a certain ratio, reducing allowable torques of hydraulic pumps 102 and 202 that supply a hydraulic fluid to a boom cylinder 3a by torques consumed by the hydraulic pumps 102 and 202 that supply a hydraulic fluid to the swing motor 3c.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: September 7, 2021
    Assignee: Hitachi Construction Machinery Tierra Co. Ltd.
    Inventors: Kiwamu Takahashi, Taihei Maehara, Takeshi Ishii, Yoshifumi Takebayashi, Natsuki Nakamura, Daisuke Oka
  • Publication number: 20210131069
    Abstract: When a swing motor and a boom cylinder are driven simultaneously, a hydraulic drive system appropriately adjusts a distribution of torques between hydraulic pumps and feeds back a torque actually consumed by the hydraulic pump for actuating the swing motor accurately to the hydraulic pump for actuating the boom cylinder. To that end, when boom raising and swinging are performed simultaneously, the hydraulic drive system corrects an allowable torque of a hydraulic pump 302 that supplies a hydraulic fluid to a swing motor 3c so as to be lowered by a certain ratio, reducing allowable torques of hydraulic pumps 102 and 202 that supply a hydraulic fluid to a boom cylinder 3a by torques consumed by the hydraulic pumps 102 and 202 that supply a hydraulic fluid to the swing motor 3c.
    Type: Application
    Filed: May 23, 2018
    Publication date: May 6, 2021
    Inventors: Kiwamu TAKAHASHI, Taihei MAEHARA, Takeshi ISHII, Yoshifumi TAKEBAYASHI, Natsuki NAKAMURA, Daisuke OKA
  • Patent number: 10995473
    Abstract: Provided is a construction machine that can prevent a machine body from being lowered without placing a blade in a floating state when the machine body is jacked up, even if the operator performs an erroneous operation, and that can perform favorable leveling work by placing the blade in the floating state when the machine body is not jacked up. A hydraulic excavator includes a pressure sensor that detects the pressure in a bottom-side oil chamber of a blade cylinder, and a controller that switches between validation and invalidation of a floating command and a lowering command for a blade operation device. In the case where the pressure detected by the pressure sensor is less than a predetermined value, the controller switches a solenoid selector valve to an interruption position to invalidate the floating command when a forward stroke of the operation lever is equal to or more than a reference value.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 4, 2021
    Assignee: Hitachi Construction Machinery Tierra Co., Ltd.
    Inventors: Yoshifumi Takebayashi, Hajime Yoshida, Natsuki Nakamura, Daisuke Oka
  • Publication number: 20210032207
    Abstract: The present invention provides a compound represented by the formula (T) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.
    Type: Application
    Filed: October 19, 2020
    Publication date: February 4, 2021
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Mamuti ABUDUSAIMI, Fangguo YE, Jiangqin SUN, Hisashi MIYAMOTO, Jay-Fei CHENG, Daisuke OKA
  • Publication number: 20200340206
    Abstract: A hydraulic drive system for a hydraulic excavator that enables leveling work and a jack-up operation by a blade in a float state, that can prevent a body from falling even when an operator has falsely operated the hydraulic excavator during the jack-up operation by the blade, and that yet can perform favorable leveling work with the blade turned into the float state is provided. A float switch 37, a float valve 38, and a controller 34 are provided, the float valve 38 is changed over to a float position VI upon operating the float switch 37 when the blade is not in a jack-up state, the float valve 38 is changed over from the float position VI to a normal position V when the float valve 38 is in a state of being at the float position VI and an operation lever device 22 has been operated, and the float valve 38 is kept at the normal position V when the float valve 38 is at the normal position V and the float switch 37 has been operated in the jack-up state.
    Type: Application
    Filed: March 24, 2017
    Publication date: October 29, 2020
    Inventors: Kazushige MORI, Hajime YOSHIDA, Yoshifumi TAKEBAYASHI, Natsuki NAKAMURA, Daisuke OKA
  • Publication number: 20200232180
    Abstract: Provided is a construction machine that can prevent a machine body from being lowered without placing a blade in a floating state when the machine body is jacked up, even if the operator performs an erroneous operation, and that can perform favorable leveling work by placing the blade in the floating state when the machine body is not jacked up. A hydraulic excavator includes a pressure sensor that detects the pressure in a bottom-side oil chamber of a blade cylinder, and a controller that switches between validation and invalidation of a floating command and a lowering command for a blade operation device. In the case where the pressure detected by the pressure sensor is less than a predetermined value, the controller switches a solenoid selector valve to an interruption position to invalidate the floating command when a forward stroke of the operation lever is equal to or more than a reference value.
    Type: Application
    Filed: January 31, 2019
    Publication date: July 23, 2020
    Inventors: Yoshifumi TAKEBAYASHI, Hajime YOSHIDA, Natsuki NAKAMURA, Daisuke OKA
  • Patent number: 10676897
    Abstract: A construction machine that can easily regulate a set maximum flow rate at a time of replacement of an attachment and that can improve an energy conservation performance is provided. A controller selects a corresponding map in response to an attachment designation signal from among maps each of which sets a relationship between an operation signal per type of the attachment and a flow rate of a hydraulic fluid supplied to an actuator, generates a control signal by causing the selected map to refer to the operation signal, and controls a flow control valve of an attachment flow rate regulation valve device in such a manner that a position of the flow control valve is switched over from a neutral position on the basis of the control signal. An unloading valve that maintains a differential pressure across the flow control valve is disposed in the attachment flow rate regulation valve device.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: June 9, 2020
    Assignee: Hitachi Construction Machinery Tierra Co., Ltd
    Inventors: Daisuke Oka, Hajime Yoshida, Yoshifumi Takebayashi, Natsuki Nakamura
  • Publication number: 20200055823
    Abstract: The present invention provides a compound represented by the formula (I) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.
    Type: Application
    Filed: October 22, 2019
    Publication date: February 20, 2020
    Inventors: Mamuti ABUDUSAIMI, Fangguo YE, Jiangqin SUN, Hisashi MIYAMOTO, Jay-Fei CHENG, Daisuke OKA
  • Publication number: 20190292753
    Abstract: A construction machine that can easily regulate a set maximum flow rate at a time of replacement of an attachment and that can improve an energy conservation performance is provided. A controller selects a corresponding map in response to an attachment designation signal from among maps each of which sets a relationship between an operation signal per type of the attachment and a flow rate of a hydraulic fluid supplied to an actuator, generates a control signal by causing the selected map to refer to the operation signal, and controls a flow control valve of an attachment flow rate regulation valve device in such a manner that a position of the flow control valve is switched over from a neutral position on the basis of the control signal. An unloading valve that maintains a differential pressure across the flow control valve is disposed in the attachment flow rate regulation valve device.
    Type: Application
    Filed: February 15, 2019
    Publication date: September 26, 2019
    Inventors: Daisuke OKA, Hajime YOSHIDA, Yoshifumi TAKEBAYASHI, Natsuki NAKAMURA
  • Publication number: 20190077762
    Abstract: The present invention provides a compound represented by the formula (I) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent, antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.
    Type: Application
    Filed: November 9, 2018
    Publication date: March 14, 2019
    Inventors: Mamuti ABUDUSAIMI, Fangguo YE, Jiangqin SUN, Hisashi MIYAMOTO, Jay-Fei CHENG, Daisuke OKA
  • Publication number: 20170362180
    Abstract: The present invention provides a compound represented by the formula (I) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.
    Type: Application
    Filed: August 30, 2017
    Publication date: December 21, 2017
    Inventors: Mamuti ABUDUSAIMI, Fangguo YE, Jiangqin SUN, Hisashi MIYAMOTO, Jay-Fei CHENG, Daisuke OKA
  • Publication number: 20160340314
    Abstract: The present invention provides a compound represented by the formula (I) wherein X is a hydrogen atom or a fluorine atom; R is a hydrogen atom or alkyl; R1 is (1) cyclopropyl optionally substituted by 1 to 3 halogen atoms or (2) phenyl optionally substituted by 1 to 3 halogen atoms; R2 is alkyl, alkoxy, haloalkoxy, a halogen atom, cyano, etc.; and R3 is 7-oxo-7,8-dihydro-1,8-naphthyridinyl, 3-pyridyl, etc., or a salt thereof. The compound of the present invention has excellent antimicrobial activity against Clostridium difficile and is useful for the prevention or treatment of intestinal infection such as Clostridium difficile-associated diarrhea.
    Type: Application
    Filed: August 1, 2016
    Publication date: November 24, 2016
    Inventors: Mamuti ABUDUSAIMI, Fangguo YE, Jiangqin SUN, Hisashi MIYAMOTO, Jay-Fei CHENG, Daisuke OKA