Patents by Inventor Takeshi Shimoyama

Takeshi Shimoyama 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: 7356726
    Abstract: A frequency control apparatus and an information processing apparatus includes an observation section for observing an operation state of a control object which operates with a variably controlled frequency, a frequency determination section for determining a clock frequency in response to the operation state, and a frequency limitation section for limiting a range or a value of the clock frequency determined by the frequency determination section. If the frequency determined in response to the operation state of the control object is within an allowable range, the control is performed with the frequency, but if the frequency is outside the allowable range, the frequency is limited to the range.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: April 8, 2008
    Assignee: Sony Corporation
    Inventors: Takeshi Shimoyama, Tetsumasa Meguro, Tsutomu Teranishi, Yasuo Nakano, Hirokazu Kawahara
  • Publication number: 20080075214
    Abstract: An information processing apparatus and an information processing method for use therewith are provided so as to implement optimal signal processing without deterioration of performance when using variable operating frequencies. A frequency information operating section (12) of the apparatus adds a corresponding signal cycle to frequency information Inf about a synchronizing clock signal CLKv having a variable frequency. An information processing section of the apparatus is supplied with the synchronizing clock signal as an operating clock signal, and processes information when results of the addition by the frequency information operating section (12) meet a predetermined condition. Optimized processing is thus accomplished in a manner eliminating wasteful latency times.
    Type: Application
    Filed: November 20, 2007
    Publication date: March 27, 2008
    Applicant: Sony Corporation
    Inventor: Takeshi Shimoyama
  • Patent number: 7346161
    Abstract: An optimization processing unit optimizes an input and output bit number of an S-box based on parameters inputted from an input unit. The examples of the parameters are memory capacity of a primary cache memory, entire input and output bit number, and smallest input and output number of the S-box. An S-box generating unit generates an S-box in accordance with the optimized input and output bit number of the S-box. Then, an F-function generating unit generates an F-function by aligning a plurality of S-boxes thus generated.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: March 18, 2008
    Assignee: Fujitsu Limited
    Inventor: Takeshi Shimoyama
  • Publication number: 20080048529
    Abstract: A manufacturing method for a stator core of a stepping motor may include punching a metal plate made of magnetic material in a punching direction in a pole-teeth shape of the stator core by press working, and then, bending the pole-teeth shape of the stator core in an opposite direction to the punching direction to form a plurality of pole teeth which is erected from an inner circumferential edge of the stator core. Therefore, a burr is formed on the inner side of the pole teeth of the stator core, in other words, on an opposite side to a coil which is mounted on the stator core.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 28, 2008
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Takeshi Shimoyama
  • Publication number: 20080048508
    Abstract: A motor may include a rotor having a rotor shaft and a magnet, at least a stator core disposed around the rotor and provided with a plurality of pole teeth, and at least a coil mounted on the stator core. The stator core includes a terminal block mounting part which is formed so as to protrude on an outer side from the stator core, and a terminal block supporting terminals for the coil is integrally mounted on the terminal block mounting part. The terminal block mounting part may be formed with at least an engaging protruded part and the terminal block is integrated with the engaging protruded part by insert molding or outsert molding.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 28, 2008
    Applicant: NIDEC SANKYO CORPORATION
    Inventor: Takeshi Shimoyama
  • Patent number: 7330394
    Abstract: Disclosed is a synchronous information storage device that uses a synchronizing clock signal to exercise operation timing control and processes operations with high efficiency to improve performance and provide low power consumption, which is characteristic of DRAMs. The information storage device includes a plurality of memory cells for storing data by accumulating an electrical charge and an amplifier for amplifying the electrical charge of the memory cells, and uses a synchronizing clock signal for input/output timing of the data. An electrical charge removal operation for moving an electrical charge from the memory cells to the amplifier or an electrical charge accumulation operation for acquiring an electrical charge from the amplifier and accumulating the electrical charge in the memory cells and an input/output operation for the amplifier in relation to the outside of the information storage device are processed while using a single clock of the synchronizing clock signal for synchronization timing.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: February 12, 2008
    Assignee: Sony Corporation
    Inventor: Takeshi Shimoyama
  • Publication number: 20080011005
    Abstract: In an air-conditioning system for a vehicle, which has multiple heat sources (an evaporator and a heat accumulator), either one of the heat sources, for which the input energy amount for the unit cooling capacity is smaller than that for the other heat source, is preferentially used for performing the cooling operation, an energy amount for the air-conditioning operation can be reduced.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 17, 2008
    Applicant: DENSO CORPORATION
    Inventors: Kazuyoshi Obayashi, Keisuke Tani, Katsunori Tanaka, Naoki Yamamoto, Takeshi Shimoyama, Yukihiro Yamashita
  • Publication number: 20080006236
    Abstract: An engine control method and related engine control method are disclosed for an engine with an auxiliary device of a vehicle wherein auxiliary device control means controls a drive torque of the auxiliary device, engine control means executes an engine torque control to vary the output torque of the engine, and failure detecting means detects a failure giving an adversely affect to engine torque control executed with the engine control means. The auxiliary device control means alters a drive control mode of the auxiliary device in response to the failure detected with the failure detecting means. In preferred embodiment, the auxiliary device is driven in a collaborative control mode in the presence of an extremely mild failure, a fixed voltage control mode in the presence of a mild failure and a gradual change control mode in the presence of a fatal failure.
    Type: Application
    Filed: June 1, 2007
    Publication date: January 10, 2008
    Applicant: DENSO CORPORATION
    Inventors: Yukihiro Yamashita, Kazuyoshi Obayashi, Keisuke Tani, Katsunori Tanaka, Takeshi Shimoyama, Naoki Yamamoto
  • Publication number: 20070294446
    Abstract: An information processing apparatus configured to control communications of a plurality of devices via a common communication channel on the basis of predetermined priority levels of the devices includes a changing unit configured to change the priority level of a predetermined device, which is one of the plurality of devices, having a first priority level to a second priority level for a predetermined amount of time and a controlling unit configured to control the length of the predetermined amount of time.
    Type: Application
    Filed: April 17, 2007
    Publication date: December 20, 2007
    Applicant: Sony Corporation
    Inventors: Yoshito Nagao, Takeshi Shimoyama
  • Publication number: 20070233921
    Abstract: Disclosed herein is a data transfer device to which a master device that issues transfer requests and slave devices each having a function of responding to the transfer request may be connected. The device may include a transfer request counter that counts up or down each time a response signal is inputted thereto from any slave device, and counts down or up each time a data transfer completion signal is inputted thereto; a transfer destination selector that, based on a count value of the counter and information concerning a transfer-target slave device, determines and selects one of the slave devices as a destination of the transfer request, and connects the master device with the selected slave device; and a data transfer monitoring section that monitors completion of data transfer corresponding to the transfer request and, upon recognizing the completion, outputs the data transfer completion signal to the counter.
    Type: Application
    Filed: March 14, 2007
    Publication date: October 4, 2007
    Applicant: Sony Corporation
    Inventors: Shigetoshi Sugiyama, Takeshi Shimoyama
  • Publication number: 20070220606
    Abstract: An anti-worm-measure parameter determining apparatus determines parameters for controlling timing for an anti-worm-measure means to start blocking of a communication by a worm in a network, for preventing a spread of the worm. An infectivity calculating unit calculates infectivity of the worm based on number of nodes connected to the network. A number-of-infected-nodes estimating unit calculates an expected value of number of infected nodes at a time when the worm transmits a predetermined number of packets, based on the infectivity calculated by the infectivity calculating unit.
    Type: Application
    Filed: July 13, 2006
    Publication date: September 20, 2007
    Inventors: Kazumasa Omote, Takeshi Shimoyama
  • Publication number: 20070198132
    Abstract: According to the present invention, a control apparatus for an electric generator includes a power generation cost determiner determining a power generation cost of the generator, a threshold determiner determining a threshold of power generation cost as a function of a state of charge of an electric energy storage device, a comparator comparing the power generation cost of the generator with the threshold, and a controller. When the power generation cost of the generator is lower than the threshold, the controller controls the generator to generate an increased amount of electric power, so as to both charge the electric energy storage device and feed an electrical load. Otherwise, when the power generation cost of the generator is higher than the threshold, the controller controls the generator to generate a decreased amount of electric power, so as to allow the electric energy storage device to discharge to feed the electrical load.
    Type: Application
    Filed: February 20, 2007
    Publication date: August 23, 2007
    Applicant: DENSO CORPORATION
    Inventors: Hiroyoshi Yamamoto, Takeshi Shimoyama, Katsunori Tanaka, Akira Kato
  • Publication number: 20070052243
    Abstract: An electric generator control apparatus of a vehicle sets respective target values of output voltage and output current for the electric generator of the vehicle, and selectively establishes a voltage control mode for holding the generator output voltage at the target voltage or a current control mode for holding the generator output current at the target current, with the mode selection and the setting of target values being performed based on criteria such as the level of charge of the vehicle battery, the electrical load of the vehicle equipment, etc.
    Type: Application
    Filed: August 23, 2006
    Publication date: March 8, 2007
    Applicant: DENSO CORPORATION
    Inventors: Takeshi Shimoyama, Katsunori Tanaka, Kazuyoshi Obayashi, Keisuke Tani, Yukihiro Yamashita, Daisuke Kuroda
  • Patent number: 7164216
    Abstract: A motor includes a stator section with a two-phase structure having first and second stator assemblies disposed in an axial direction, and a plurality of pole teeth arranged at an electrical angle of 90 degrees along inner circumferences of the first and second stator assemblies, and a rotor section including a rotation shaft, and first and second permanent magnets that are disposed opposite to and spaced a predetermined gap from the pole teeth and affixed to the rotation shaft with a gap provided between the first and second permanent magnets in the axial direction. Each of the first and second permanent magnets has an effective section at an outer circumference thereof that has multiple poles alternately magnetized with N poles and S poles, and has a protruded section that has a diameter smaller than an outer diameter of the effective section and protrudes in the axial direction.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: January 16, 2007
    Assignee: Nidec Sankyo Corporation
    Inventor: Takeshi Shimoyama
  • Publication number: 20060212247
    Abstract: A frequency control apparatus and an information processing apparatus are disclosed wherein it is possible, in control of an operation frequency of a control object performed in response to a result of observation of an operation state of the control object, to limit the operation frequency or designate an allowable value or the like to achieve improvement in performance and power-saving. The frequency control apparatus (1) includes an observation section (3) for observing an operation state of a control object (2) which operates with a variably controlled frequency, a frequency determination section (4) for determining a clock frequency in response to the operation state, and a frequency limitation section (5) for limiting a range or a value of the clock frequency determined by the frequency determination section (4).
    Type: Application
    Filed: May 7, 2004
    Publication date: September 21, 2006
    Applicant: Sony Corporation
    Inventors: Takeshi Shimoyama, Tetsumasa Meguro, Tsutomu Teranishi, Yasuo Nakano, Hirokazu Kawahara
  • Publication number: 20060112295
    Abstract: An information processing apparatus and an information processing method for use therewith are provided so as to implement optimal signal processing without deterioration of performance when using variable operating frequencies. A frequency information operating section (12) of the apparatus adds a corresponding signal cycle to frequency information Inf about a synchronizing clock signal CLKv having a variable frequency. An information processing section of the apparatus is supplied with the synchronizing clock signal as an operating clock signal, and processes information when results of the addition by the frequency information operating section (12) meet a predetermined condition. Optimized processing is thus accomplished in a manner eliminating wasteful latency times.
    Type: Application
    Filed: October 7, 2003
    Publication date: May 25, 2006
    Applicant: Sony Corporation
    Inventor: Takeshi Shimoyama
  • Publication number: 20060058897
    Abstract: An on-vehicle power supplying apparatus comprises a first battery charged by a generator driven by an on-vehicle engine, a second battery connected to an on-vehicle electric load, and a power adjuster adjusting power to be supplied from both of the first and second batteries to the electric load. For adjusting the power, he power adjuster uses a predetermined order in which the first battery is firstly made to supply the power to the electric load, provided that a residual capacity of the first battery is higher than a predetermined threshold, before making both the first and second batteries supply the power to the electric load cooperatively.
    Type: Application
    Filed: August 24, 2005
    Publication date: March 16, 2006
    Applicant: DENSO CORPORATION
    Inventors: Takashi Senda, Akira Kato, Katsunori Tanaka, Takeshi Shimoyama
  • Publication number: 20060028883
    Abstract: Disclosed is a synchronous information storage device that uses a synchronizing clock signal to exercise operation timing control and processes operations with high efficiency to improve performance and provide low power consumption, which is characteristic of DRAMs. The information storage device includes a plurality of memory cells for storing data by accumulating an electrical charge and an amplifier for amplifying the electrical charge of the memory cells, and uses a synchronizing clock signal for input/output timing of the data. An electrical charge removal operation for moving an electrical charge from the memory cells to the amplifier or an electrical charge accumulation operation for acquiring an electrical charge from the amplifier and accumulating the electrical charge in the memory cells and an input/output operation for the amplifier in relation to the outside of the information storage device are processed while using a single clock of the synchronizing clock signal for synchronization timing.
    Type: Application
    Filed: October 29, 2003
    Publication date: February 9, 2006
    Applicant: SONY CORPORATION
    Inventor: Takeshi Shimoyama
  • Publication number: 20060010334
    Abstract: This invention relates to an information processing apparatus as well as to an information processing method and a program for use therewith, the apparatus being arranged to prevent a drop in its processing performance while minimizing power dissipation when a frequency-variable synchronizing clock signal CLK of the apparatus is lowered in frequency. Illustratively, if a selector block 31-2 receives a selection command “select B” which is set depending on the frequency of the synchronizing clock signal CLK and which specifies the bypassing of a holding block 12-2, then data input to and held by a holding block 12-1 on a first clock pulse of the clock signal CLK is arranged, on a second clock pulse, to pass through a selector block 31-1 and a signal processing block 13-1, bypass the holding block 12-2, pass through the selector block 31-2 and a signal processing block 13-2, and be input to and held by a holding block 12-3.
    Type: Application
    Filed: July 30, 2003
    Publication date: January 12, 2006
    Inventor: Takeshi Shimoyama
  • Patent number: 6965172
    Abstract: A starter for cranking an internal combustion engine is mainly composed of an electric motor and a magnetic switch having a battery bolt connected to an on-board battery and a motor bolt connected to the electric motor. When the magnetic switch is closed, electric power is supplied to the electric motor to thereby generate a rotational torque for cranking the engine. One end of a motor terminal is electrically connected to the motor bolt, and the other end is led into a motor casing through a rubber insulator supported on the motor casing. The motor terminal includes one or more curved portions having resiliency, and they are positioned between the rubber insulator and the motor bolt. Water penetration into the motor casing is prevented by the rubber insulator, and the vibration of the motor terminal is alleviated by resiliency of the curved portions.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: November 15, 2005
    Assignee: Denso Corporation
    Inventors: Takeshi Shimoyama, Youichi Hasegawa, Sadayoshi Kajino