Patents by Inventor Takayuki Yamamoto

Takayuki Yamamoto 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: 20130207451
    Abstract: A hydraulic brake system includes: a hydraulic pressure source provided for a vehicle, and including a hydraulic-pressure generating device and a reservoir; a plurality of hydraulic brakes provided for respective wheels of the vehicle, and configured to restrain rotations of the respective wheels; and a control valve device including at least one hydraulic-pressure control valve group disposed between the hydraulic-pressure generating device and at least one of brake cylinders of the hydraulic brakes and/or between the reservoir and the at least one of the brake cylinders. Each of the at least one hydraulic-pressure control valve group includes (a) at least one ON/OFF control valve and (b) at least one linear control valve that are disposed in parallel with each other.
    Type: Application
    Filed: September 17, 2010
    Publication date: August 15, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masayasu Ohkubo, Yoshito Tanaka, Hiroshi Nakaoka, Takayuki Yamamoto, Tetsuya Miyazaki
  • Patent number: 8456813
    Abstract: An optical disc reproduction apparatus includes a main body, a display unit, a two-axis hinge, and a battery pack. The two-axis hinge has a joint member to connect the two-axis hinge to the main body. The main body has not only a hinge mounting-housing portion to attach and house the joint member of the two-axis hinge but also a housing recess to house a battery housing of the battery pack on right and left sides of the hinge mounting-housing portion on a back end. The battery pack has a U-shaped recess in a center. The recess is located in a position corresponding to the hinge mounting-housing portion in the main body and has a width larger than that of the hinge mounting-housing portion in a rightward-leftward direction.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: June 4, 2013
    Assignee: Funai Electric Co., Ltd.
    Inventors: Junji Miyagi, Hideki Kume, Mari Muroi, Takayuki Yamamoto
  • Publication number: 20130125638
    Abstract: A stroke sensor abnormality determining apparatus includes a stroke sensor for detecting a stroke of a brake pedal by detecting an electric signal that varies in response to the stroke of the brake pedal, a deceleration calculating unit for calculating a total target value, which is correlated with a target deceleration of a vehicle, based on at least the stroke, and an abnormality determining unit for determining whether or not an abnormality of the stroke sensor occurs, based on the electric signal detected by the stroke sensor, the abnormality determining unit being configured so that a signal indicating the abnormality of the stroke sensor can be outputted when the abnormality is determined to have occurred in the stroke sensor.
    Type: Application
    Filed: August 4, 2010
    Publication date: May 23, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Miyazaki, Takayuki Yamamoto, Masaaki Komazawa, Yasushi Hanaki
  • Patent number: 8423245
    Abstract: An electric power steering control apparatus can reduce steering torque even in a steering holding state or a slight steering state without providing an unpleasant feeling to a driver. The apparatus includes a torque sensor for detecting steering torque generated by the driver for a vehicle, a motor for generating assist torque to assist the steering torque, a rotational speed detector for detecting the rotational speed of the motor, a torque controller for calculating an assist torque current corresponding to the assist torque based on the steering torque, and a damping control section for calculating a damping current to be added to the assist torque current to suppress vibrations generated in a steering system of the vehicle. The damping controller reduces a damping control gain to calculate the damping current when the rotational speed of the motor is equal to or less than a predetermined speed.
    Type: Grant
    Filed: September 6, 2007
    Date of Patent: April 16, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazushi Kimura, Takayuki Yamamoto, Ryuuji Okamura
  • Publication number: 20130060360
    Abstract: In a control server, a storing section accumulates request data received from a terminal and used for remotely operating, via a control apparatus, a home electric appliance provided in a home. A generating section generates schedule data on the basis of at least one of the request data and the inquiry. The schedule data is data concerning a frequency of an inquiry about the request data by the control apparatus and data transmitted to the control apparatus. A transmitting section transmits the request data stored in the storing section to the control apparatus in response to the inquiry transmitted from the control apparatus at a frequency indicated by the schedule data.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 7, 2013
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Lighting & Technology Corporation, Toshiba Consumer Electronics Holdings Corporation
    Inventor: Takayuki YAMAMOTO
  • Patent number: 8379385
    Abstract: An optical disc reproduction apparatus as electronic apparatus comprises a lock lever for keeping a battery pack attached to a case. The lock lever comprises a lever body and a tongue portion extending from the lever body in a length direction of the lever body. A tongue portion of the lock lever is inserted into the case through an operation opening of the case. The tongue portion is allowed to temporarily escape to a tongue portion escape section of the case, and the entire lever body is housed in the case through the operation opening, so as to assemble the lock lever to the case. This prevents ends of the lever body from being exposed to the operation opening in any position of the lock lever assembled to the case, making it possible to easily assemble the lock lever, and preventing the assembled lock lever from easily falling off.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: February 19, 2013
    Assignee: Funai Electric Co., Ltd.
    Inventors: Junji Miyagi, Takayuki Yamamoto, Mari Muroi
  • Publication number: 20120319098
    Abstract: The present invention relates to a substituted pyridyl compound represented by the following general formula (1), (2), or (3) and an organic electroluminescent element containing a pair of electrodes and at least one organic layer interposed therebetween, in which the at least one organic layer contains the substituted pyridyl compound represented by the following general formula (1), (2), or (3).
    Type: Application
    Filed: February 22, 2011
    Publication date: December 20, 2012
    Applicants: SHINSHU UNIVERSITY, HODOGAYA CHEMICAL CO., LTD
    Inventors: Norimasa Yokoyama, Shuichi Hayashi, Musubu Ichikawa, Takayuki Yamamoto
  • Publication number: 20120319462
    Abstract: In a brake control system, a power supply portion supplies a voltage to a plurality of actuators. When a first actuator is supplied with a voltage equal to or higher than a first minimum operating voltage from the power supply portion, the first actuator operates to perform a first function. When a second actuator is supplied with a voltage equal to or higher than a second minimum operating voltage from the power supply portion, the second actuator performs a second function. The first minimum operating voltage and the second minimum operating voltage are set to be different from each other by a predetermined value so that the first actuator and the second actuator stop operating in a predetermined sequence with a decrease in the supplied voltage.
    Type: Application
    Filed: February 4, 2011
    Publication date: December 20, 2012
    Applicants: ADVICS CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kumiko Akita, Takayuki Yamamoto, Tetsuya Miyazaki, Terushige Uraoka, Koji Watanabe
  • Publication number: 20120302655
    Abstract: There is provided a thermoplastic resin foam being excellent in strength, flexibility, cushioning properties, strain recovery and the like, particularly being low in the shrinkage of the cell structure due to the resilience of the resin, and being good in productivity. There is also provided a process for producing a thermoplastic resin foam which can produce, with good productivity, the thermoplastic resin foam being excellent in strength, flexibility, cushioning properties, strain recovery and the like, particularly being low in the shrinkage of the cell structure due to the resilience of the resin. The thermoplastic resin foam according to the present invention is obtained from a thermoplastic resin composition containing a thermoplastic elastomer, an active energy-ray curable compound and a radical trapping agent.
    Type: Application
    Filed: January 18, 2011
    Publication date: November 29, 2012
    Applicant: NITTO DENKO CORPORATION
    Inventors: Mitsuhiro Kanada, Takayuki Yamamoto, Yoshinori Kouno, Hironori Yasuda
  • Patent number: 8290674
    Abstract: A brake control system includes a first wheel cylinder that applies braking force to a first wheel according to hydraulic pressure; a second wheel cylinder that applies braking force to a second wheel according to hydraulic pressure; a brake actuator that receives current and individually controls the hydraulic pressure of the first wheel cylinder and the hydraulic pressure of the second wheel cylinder; a power supply that supplies the current to the brake actuator; and a control portion which sets a braking force distribution between the first wheel and the second wheel based on the state-of-charge of the power supply, and controls the brake actuator according to the braking force distribution.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: October 16, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tetsuya Miyazaki, Takayuki Yamamoto
  • Publication number: 20120256477
    Abstract: A brake system including: (a) a manual hydraulic pressure source; (b) a power hydraulic pressure source; (c) a high pressure generator for generating high pressure, by utilizing pressure of the power hydraulic pressure source; (d) a common passage to which first and second brake cylinders and the high pressure generator are connected; (e) a high-pressure-generator cut-off valve disposed between the common passage and the high pressure generator; (f) a first manual-pressure-source passage connecting a first individual passage and the manual hydraulic pressure source; (g) a first manual-pressure-source cut-off valve provided in the first manual-pressure-source passage; (h) a first valve provided between the second brake cylinder and a connected portion of the first individual passage which is connected to the first manual-pressure-source passage; and (i) a pressure-supply control device for controlling supply of pressure to the brake cylinders, by controlling the high-pressure-generator cut-off valve, first val
    Type: Application
    Filed: February 2, 2010
    Publication date: October 11, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Miyazaki, Takayuki Yamamoto
  • Patent number: 8282530
    Abstract: When the driver makes a request for switching the shift range to the P range despite that the vehicle has not yet stopped completely, the wheel cylinder pressure is maintained at a brake hold pressure Ph for a while, rather than switching the shift range to the P range immediately. At this time, more specifically, the wheel cylinder pressure is maintained at the brake hold pressure Ph for a brake hold duration ?t within which the vehicle is estimated to stop, and when the brake hold duration ?t has passed, the shift range is switched to the P range. After the lock mechanism is actuated to establish the P range, the wheel cylinder pressure is gradually reduced from the brake hold pressure Ph at a given pressure reducing gradient.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: October 9, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takayuki Yamamoto
  • Publication number: 20120235469
    Abstract: A hydraulic brake system including: (a) a first hydraulic-pressure generating device including a manual hydraulic pressure source; (b) a second hydraulic-pressure generating device including a power hydraulic pressure source; (c) a manual-operation-associated brake line including a communicating device that is to be brought into communication with the manual hydraulic pressure source and brake cylinder or cylinders of the plurality of hydraulic brakes; (d) an output hydraulic-pressure control device and a flow restraining device disposed in parallel with each other between the manual-operation-associated brake line and the second hydraulic-pressure generating device; and (e) a power hydraulic pressure source control device for activating the power hydraulic pressure source such that the hydraulic pressure is supplied to the manual-operation-associated brake line via the flow restraining device, when the output hydraulic-pressure control device cannot control the hydraulic pressure outputted by the second hydr
    Type: Application
    Filed: March 3, 2010
    Publication date: September 20, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Miyazaki, Takayuki Yamamoto, Yoshito Tanaka
  • Patent number: 8246122
    Abstract: A fluid level detecting apparatus detects the level of fluid in a reservoir. When the fluid level detecting apparatus detects that the fluid level has reached a minimum fluid level, an ECU issues a warning. If, after the warning has been issued, the fluid level detecting apparatus detects that the fluid level has reached a failsafe mode operation fluid level, which is lower than the minimum fluid level, the switches a normal control mode to a failsafe mode, and performs brake control using the failsafe mode.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: August 21, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takayuki Yamamoto
  • Publication number: 20120185213
    Abstract: A malfunction detection device for a resolver detects malfunction in a resolver with accuracy and stability even if a value of a square sum is varied between inside and outside of a normal range. When the resolver is in malfunction, a sine signal and a cosine signal are read. It is determined whether a malfunction determination of the resolver is prohibited, or not, from read values of the sine signal and the cosine signal, or square values thereof. When it is determined that the malfunction determination of the resolver is prohibited, the count value is accumulated and incremented every time the test value falls outside a normal range. When the count value arrives at a given value or higher, it is determined that the resolver is in malfunction.
    Type: Application
    Filed: June 10, 2011
    Publication date: July 19, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Shunichi WADA, Takayuki Yamamoto, Ryoichi Yonezawa, Masaki Matsushita, Katsuya Ikemoto
  • Patent number: 8225338
    Abstract: An optical disc reproduction apparatus as electronic apparatus has a display unit mounted via a hinge unit on a main body unit which has a main body case having lower and upper cases for housing a control board and a hinge connecting portion connected to a main body-side joint member of the hinge unit. The hinge connecting portion is formed of a part of the main body case, and has upper and lower connecting members formed of a part of the upper case and a part of the lower case, respectively. The lower connecting member is overlaid on a lower surface of the upper connecting member. The main body-side joint member is attached to the upper connecting member, and connected to both the upper and lower connecting members with hinge mounting screws so as to be connected to the hinge connecting portion.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: July 17, 2012
    Assignee: Funai Electric Co., Ltd.
    Inventors: Junji Miyagi, Takayuki Yamamoto, Mari Muroi
  • Publication number: 20120167552
    Abstract: Disclosed is a turbo pump in which a pump impeller is connected to one end of a rotary shaft and a turbine is connected to the other end of the rotary shaft. The turbo pump is designed such that an equivalent region, between a turbine efficiency curve obtained on the basis of a conditional expression where the number of rotations of the rotary shaft is maintained constant regardless of a pump flow rate and a turbine efficiency curve of an actual machine, becomes an operation region.
    Type: Application
    Filed: September 3, 2010
    Publication date: July 5, 2012
    Inventors: Hatsuo Mori, Yoshihiro Naruo, Shinichiro Tokudome, Tsuyoshi Yagishita, Takayuki Yamamoto, Yoshifumi Inatani
  • Patent number: 8212151
    Abstract: A wiring substrate includes: an insulating layer; a wiring formed on the insulating layer; and a solder resist layer formed on the insulating layer so as to cover at least a portion of the wiring, the solder resist layer being constituted by a plurality of layers, wherein the plurality of layers contain fillers of different grain diameters, a layer thickness of an innermost layer for constituting the plurality of layers is thicker than a layer thickness of the wiring, and a grain diameter of the filler contained in the innermost layer is smaller than a shortest interval between adjacent lines of the wiring.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: July 3, 2012
    Assignee: Shinko Electric Industries Co., Ltd.
    Inventor: Takayuki Yamamoto
  • Patent number: D665191
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: August 14, 2012
    Assignee: Okamura Corporation
    Inventor: Takayuki Yamamoto
  • Patent number: D669282
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: October 23, 2012
    Assignee: Okamura Corporation
    Inventor: Takayuki Yamamoto