Patents by Inventor Kenichi Yamada

Kenichi Yamada 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: 9790663
    Abstract: A work vehicle is equipped with an engine, a hydraulic pump, a work implement, a work implement operating member, a work implement control valve, a capacity control device, a travel device, an accelerator operating member, and a control unit. The hydraulic pump is driven by the engine. The work implement is driven by hydraulic fluid discharged from the hydraulic pump. The work implement control valve controls the hydraulic pressure supplied to the work implement. The capacity control device controls a differential pressure between a discharge pressure of the hydraulic pump and an outlet hydraulic pressure of the work implement control valve. The travel device is driven by the engine. The accelerator operating member changes the engine rotation speed. The control unit causes the speed of the work implement to increase by causing the engine rotation speed to increase when an operation amount of the work implement operating member is increased.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 17, 2017
    Assignee: KOMATSU LTD.
    Inventors: Masao Yoshizawa, Shunsuke Miyamoto, Kenichi Yamada
  • Publication number: 20170276413
    Abstract: An air conditioner may prevent a refrigerant stored in a refrigerant storage from rapidly flowing into a main refrigerant circuit when the type of operation is switched. The air conditioner may include a refrigerant circuit provided with a compressor, a condenser, an expansion valve and an evaporator; a refrigerant amount detection device configured to determine whether a refrigerant state in an outlet of the compressor is a supercooled state or a gas-liquid two phase state, and configured to calculate a refrigerant amount ratio in the refrigerant circuit, based on a predetermined set value according to at least one of a temperature and a pressure detected in the refrigerant circuit, and the refrigerant state; and a controller configured to control the refrigerant circuit according to the refrigerant amount ratio calculated by the refrigerant amount detection device.
    Type: Application
    Filed: September 3, 2015
    Publication date: September 28, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hisashi TAKEICHI, Hiroaki EGUCHI, Tetsuya OGASAWARA, Kenichi YAMADA, Masahiro AONO
  • Publication number: 20170274896
    Abstract: A control unit in a work vehicle executes an automatic downshift for shifting a transmission from a current speed range to a speed range that is lower than the current speed range when at least a first condition, a second condition, a third condition, and a fourth condition are satisfied. The first condition is that an operating amount of an accelerator operating member of the work vehicle is equal to or greater than a predetermined accelerator threshold. The second condition is that a vehicle speed of the work vehicle is less than a predetermined speed threshold. The third condition is that a vehicle acceleration of the work vehicle is equal to or less than a predetermined acceleration threshold. The fourth condition is that that the hydraulic pressure of a hydraulic fluid supplied to a brake device of the work vehicle is less than a predetermined brake threshold.
    Type: Application
    Filed: June 14, 2017
    Publication date: September 28, 2017
    Inventors: Kenichi YAMADA, Shunsuke MIYAMOTO
  • Publication number: 20170243095
    Abstract: An image forming system identifies a user's operation for changing a set value related to a processing of the image forming apparatus or the post-processing apparatus. When the set value is changed during a continuous output operation of the image forming system, the image forming system causes the image forming apparatus and the post-processing apparatus to continue the continuous output operation while reflecting the changed set value. The image forming system Detects a predetermined change related to the processing by referring back to a time when the user's operation is identified, and causes the image forming apparatus and the post-processing apparatus to re-output papers that have been output from a time when the predetermined change occurred to a time when the changed set value was reflected.
    Type: Application
    Filed: February 17, 2017
    Publication date: August 24, 2017
    Applicant: Konica Minolta, Inc.
    Inventor: Kenichi Yamada
  • Publication number: 20170228775
    Abstract: A learning apparatus according to the subject application includes an acquisition unit, a generating unit, and a specifying unit. The acquisition unit acquires terminal information that is information about a terminal device receiving information content. The generating unit generates a model indicating a tendency of predetermined behavior related to predetermined information content to be taken, by learning the relation between result information indicating whether the predetermined behavior related to the predetermined information content has been taken and terminal information acquired by the acquisition unit. The specifying unit specifies a terminal device to serve as a destination receiving the predetermined information content, based on the model generated by the generating unit.
    Type: Application
    Filed: January 26, 2017
    Publication date: August 10, 2017
    Applicant: YAHOO JAPAN CORPORATION
    Inventor: Kenichi YAMADA
  • Patent number: 9707958
    Abstract: A control unit in a work vehicle executes an automatic downshift for shifting a speed range of a transmission to the speed range at a lower speed than a current speed range. The control unit determines the execution of the automatic downshift on the basis of automatic downshift conditions. The automatic downshift conditions include whether the operating amount of the accelerator operating member is equal to or greater than a predetermined accelerator threshold, whether the vehicle speed is less than a predetermined speed threshold, and whether the acceleration is equal to or less than a predetermined acceleration threshold.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: July 18, 2017
    Assignee: KOMATSU LTD.
    Inventors: Kenichi Yamada, Shunsuke Miyamoto
  • Publication number: 20170145659
    Abstract: A work vehicle is equipped with an engine, a hydraulic pump, a work implement, a work implement operating member, a work implement control valve, a capacity control device, a travel device, an accelerator operating member, and a control unit. The hydraulic pump is driven by the engine. The work implement is driven by hydraulic fluid discharged from the hydraulic pump. The work implement control valve controls the hydraulic pressure supplied to the work implement. The capacity control device controls a differential pressure between a discharge pressure of the hydraulic pump and an outlet hydraulic pressure of the work implement control valve. The travel device is driven by the engine. The accelerator operating member changes the engine rotation speed. The control unit causes the speed of the work implement to increase by causing the engine rotation speed to increase when an operation amount of the work implement operating member is increased.
    Type: Application
    Filed: January 26, 2017
    Publication date: May 25, 2017
    Inventors: Masao YOSHIZAWA, Shunsuke MIYAMOTO, Kenichi YAMADA
  • Patent number: 9644507
    Abstract: An oil pan structure (1) includes a lower structure (2) fixed to a lower portion of an engine block, a main oil pan (3) provided under an engine block with the lower structure being between the main oil pan and the engine block, a sub oil pan (5) that is provided in the main oil pan (3) and forms a first chamber (6) and a second chamber (7) inside the main oil pan (3). The sub oil pan (5) is separated into an upper body (5a) and a lower body (5b). The upper body (5a) is formed together with the lower structure (2) by injection molding.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: May 9, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenichi Yamada, Hideo Kobayashi, Katuhiko Arisawa, Toshihisa Sugiyama, Kunihiko Hayashi, Ryo Michikawauchi
  • Patent number: 9605414
    Abstract: A transmission requirement setting unit sets a required traction force in a work vehicle based on an accelerator operation amount. A work implement requirement setting unit sets a required flow rate based on a work implement operation amount. An engine requirement setting unit determines the horsepower required based on the horsepower required by the transmission set based on the required traction force and the horsepower required by the work implement set based on the required flow rate. A required throttle setting unit determines a commanded throttle value based on the horsepower required. A pump displacement setting unit sets a target displacement for the hydraulic pump based on the required flow rate. The work implement requirement setting unit sets an upper limit for the required flow rate to a prescribed flow rate limit value when the discharge pressure of the hydraulic pump is at or above a prescribed pressure threshold.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: March 28, 2017
    Assignee: KOMATSU LTD.
    Inventors: Kenichi Yamada, Masao Yoshizawa
  • Patent number: 9593468
    Abstract: A work implement requirement determination unit of a work vehicle determines a work implement required power based on the operation amount of a work implement operating member and the work implement pump pressure. A transmission requirement determination unit determines a transmission required power based on the vehicle speed and the operation amount of the accelerator operating member. When the sum of the work implement required power and the transmission required power is greater than a first distributable power that a predetermined preferential distribution power subtracted from a load upper limit power of the engine leaves, a distribution ratio determination unit allocates the smaller of a transmission compensation power and the transmission required power to a power transmission device and distributes the remainder of the first distributable power to the work implement pump and to a power transmission device.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: March 14, 2017
    Assignee: KOMATSU LTD.
    Inventors: Kenichi Yamada, Shunsuke Miyamoto
  • Publication number: 20170044736
    Abstract: A power transmission device of a work vehicle has an input shaft, an output shaft, a gear mechanism, and an electric motor. The gear mechanism has a planetary gear mechanism and transmits the rotation of the input shaft to the output shaft. The electric motor is connected to a rotating element of the planetary gear mechanism. The power transmission device is configured to change the rotation speed ratio of the output shaft with respect to the input shaft by changing the rotation speed of the electric motor. A control unit has a target torque determination unit and a target torque correcting unit. The target torque determination unit determines a target torque of the electric motor. The target torque correcting unit corrects the target torque according to a correction torque based on a moment of inertia of the electric motor.
    Type: Application
    Filed: December 10, 2014
    Publication date: February 16, 2017
    Inventors: Shunsuke MIYAMOTO, Kenichi YAMADA, Kaoru YASUDA
  • Publication number: 20160202651
    Abstract: An insertion device which inserts a second recording medium into a conveyance path to convey a plurality of first recording media fed from a feeding device includes: a loading unit in which the second recording medium is loaded; a separating unit which separates the second recording medium, which is loaded in the loading unit; a detection unit which detects time of separation of the second recording medium performed by the separating unit; a calculation unit which calculates first feed timing to feed a following first recording medium, which is conveyed in the conveyance path after the second recording medium, to the conveyance path; a notification unit which notifies the first feed timing to the feeding device; and an inserting unit which conveys the second recording medium separated by the separating unit to a converging point in the conveyance path and to insert the second recording medium into the conveyance path.
    Type: Application
    Filed: December 10, 2015
    Publication date: July 14, 2016
    Applicant: KONICA MINOLTA, INC.
    Inventor: Kenichi YAMADA
  • Patent number: 9388330
    Abstract: The blasting material includes abrasives, and water in the range of 5 to 30 mass % both inclusive relative to a mass of the abrasives, the abrasives being prepared in advance such that all of the abrasives are uniformly wet.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: July 12, 2016
    Assignees: FUJI ENGINEERING CO., LTD., FUJIGIKEN CO., LTD., WEST NIPPON EXPRESSWAT COMPANY, LIMITED
    Inventors: Masanobu Sugimoto, Kenichi Yamada, Toshihiro Hara, Masanobu Irie
  • Publication number: 20160167647
    Abstract: A control unit in a work vehicle executes an automatic downshift for shifting a speed range of a transmission to the speed range at a lower speed than a current speed range. The control unit determines the execution of the automatic downshift on the basis of automatic downshift conditions. The automatic downshift conditions include whether the operating amount of the accelerator operating member is equal to or greater than a predetermined accelerator threshold, whether the vehicle speed is less than a predetermined speed threshold, and whether the acceleration is equal to or less than a predetermined acceleration threshold.
    Type: Application
    Filed: January 14, 2015
    Publication date: June 16, 2016
    Inventors: Kenichi YAMADA, Shunsuke MIYAMOTO
  • Publication number: 20160145836
    Abstract: A transmission requirement setting unit sets a required traction force in a work vehicle on the basis of an accelerator operation amount. A work implement requirement setting unit sets a required flow rate on the basis of a work implement operation amount. An engine requirement setting unit determines the horsepower required from the engine on the basis of the horsepower required by the transmission set on the basis of the required traction force, and the horsepower required by the work implement set on the basis of the required flow rate. A required throttle setting unit determines a commanded throttle value sent to the engine on the basis of the horsepower required from the engine. A pump displacement setting unit sets a target displacement for the hydraulic pump on the basis of the required flow rate.
    Type: Application
    Filed: December 9, 2014
    Publication date: May 26, 2016
    Inventors: Kenichi YAMADA, Masao YOSHIZAWA
  • Patent number: 9341200
    Abstract: The target input shaft torque determination unit determines a target input shaft torque. The target output shaft torque determination unit determines a target output shaft torque so that a deceleration force for decelerating the vehicle is generated on the output shaft of the power transmission device in a state in which connection and disconnection states of the forward travel clutch and the reverse travel clutch are maintained at the state before the start of the shuttle action when the shuttle action is started. The torque-balance information is stored in a storage unit and defines a relationship between the target input shaft torque and the target output shaft torque to achieve a balance of the torques of a power transmission device. The command torque determination unit uses the torque-balance information to determine torque commands for the motor from the target input shaft torque and the target output shaft torque.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: May 17, 2016
    Assignee: KOMATSU LTD.
    Inventors: Shunsuke Miyamoto, Kenichi Yamada, Yasunori Ohkura, Yasuki Kishimoto, Masao Yoshizawa
  • Publication number: 20160121900
    Abstract: A work vehicle is equipped with an engine, a hydraulic pump, a work implement, a travel device, an accelerator operating member, a work implement operating member, and a control unit. The hydraulic pump is driven by the engine. The work implement is driven by hydraulic fluid discharged from the hydraulic pump. The travel device is driven by the engine. The accelerator operating member changes the engine rotation speed. The work implement operating member operates the work implement. The control unit causes the speed of the work implement to increase by causing the engine rotation speed to increase when an operation amount of the work implement operating member is increased.
    Type: Application
    Filed: December 16, 2014
    Publication date: May 5, 2016
    Inventors: Masao YOSHIZAWA, Shunsuke MIYAMOTO, Kenichi YAMADA
  • Publication number: 20160097186
    Abstract: A work implement requirement determination unit of a work vehicle determines a work implement required power based on the operation amount of a work implement operating member and the work implement pump pressure. A transmission requirement determination unit determines a transmission required power based on the vehicle speed and the operation amount of the accelerator operating member. When the sum of the work implement required power and the transmission required power is greater than a first distributable power that a predetermined preferential distribution power subtracted from a load upper limit power of the engine leaves, a distribution ratio determination unit allocates the smaller of a transmission compensation power and the transmission required power to a power transmission device and distributes the remainder of the first distributable power to the work implement pump and to a power transmission device.
    Type: Application
    Filed: December 17, 2014
    Publication date: April 7, 2016
    Inventors: Kenichi YAMADA, Shunsuke MIYAMOTO
  • Publication number: 20160076426
    Abstract: A heat transfer apparatus includes: an evaporating portion that evaporates a working medium by heat of an exhaust gas from an internal combustion engine; a condensing portion that condenses the working medium having been evaporated; a circulation path portion that causes the working medium to circulate between the evaporating portion and the condensing portion; a heat storage member that is provided within the evaporating portion; and a supplying and collecting portion that supplies the working medium to the evaporating portion when the internal combustion engine starts, and that collects the working medium having been condensed when the internal combustion engine stops such that the working medium having been condensed does not contact with the heat storage member.
    Type: Application
    Filed: March 20, 2014
    Publication date: March 17, 2016
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenichi YAMADA, Yoshiyuki YAMASHITA, Takayuki IWAKAWA
  • Patent number: D792708
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: July 25, 2017
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Yuko Tazawa, Masato Sakai, Kenichi Yamada, Shuji Takeda