Patents by Inventor Tatsuya Ishikawa

Tatsuya Ishikawa 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: 20170285673
    Abstract: In a semiconductor device of related art, the degree of freedom when using one pad with plural functions has been disadvantageously low. A semiconductor device has an internal logic circuit, a regulator circuit, and an interface circuit, and the regulator circuit and the interface circuit are coupled to one shared pad. In the case where a driving transistor of the regulator circuit is controlled to be in a conductive state, the shared pad is used as a terminal to which an input voltage of the regulator circuit is input. In the case where the driving transistor of the regulator circuit is controlled to be in a disconnected state, the shared pad is used as an input/output terminal of the interface circuit.
    Type: Application
    Filed: March 28, 2017
    Publication date: October 5, 2017
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Terunori KUBO, Tatsuya ISHIKAWA
  • Patent number: 9689654
    Abstract: The present invention relates to a selection assisting method including a first selection step of selecting a recommended grip from a plurality of types of grips based on information on a hand size of a testing golfer; a measurement step of measuring by using a measurement device a swing characteristic of the testing golfer in a shot by using a golf club to which the recommended grip selected in the first selection step is attached; and a second selection step of selecting a recommended grip from the plurality of types of grips based on a measurement result in the measurement step.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: June 27, 2017
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Hirotada Iwade, Tatsuya Ishikawa, Shintaro Yoshida
  • Publication number: 20170090540
    Abstract: In a system using a device not adapted to a single wire bus, a circuit such as a power source circuit for the device is needed. A semiconductor device includes an external terminal to be coupled to a power source terminal of an external device, a port that supplies a power source voltage for the external device to the external terminal, a power manager that controls an output of the port, and a CPU that controls an operation of the power manager.
    Type: Application
    Filed: August 11, 2016
    Publication date: March 30, 2017
    Inventors: Tatsuya ISHIKAWA, Yoshiaki DAIMON, Norihiko ISHIZAKI, Yuichi IWAYA
  • Publication number: 20170048503
    Abstract: A projection-type image display device includes: a light source unit that irradiates video light to be magnified and projected onto a reflection mirror; a video processing unit that generates the video light to be magnified and projected on the basis of an external electrical signal and light irradiated from the light source unit; and a projection-type optical system that magnifies and projects the video light output from the video processing unit, wherein the light source unit includes a red (R) solid-state light source, a green (G) solid-state light source, and a blue (B) solid-state light source each of which is configured as at least a solid-state light emitting device and each solid-state light source is provided with a cooling member, and wherein driving power input to each solid-state light source is controlled on the basis of light emission characteristics or the state of the cooling member.
    Type: Application
    Filed: May 9, 2014
    Publication date: February 16, 2017
    Inventors: Koji HIRATA, Tatsuya ISHIKAWA, Yuki NAGANO
  • Patent number: 9563471
    Abstract: A simulation apparatus that performs parallel execution of multiple logical processes obtained by modeling a plurality of components included in a system to be simulated. The apparatus includes: (i) a condition generating unit configured to generate, on the basis of communication delays between the multiple logical processes, constraint conditions to be satisfied by initial time shifts given to the multiple logical processes and look-ahead times each to be permitted by a message sent from a logical process serving as a communication source to a logical process serving as a communication destination to permit look-ahead; and (ii) a solver unit configured to solve an optimization problem that satisfies the constraint conditions and minimizes overhead in communication of messages between the multiple logical processes, and obtain the initial time shifts of the multiple logical processes and the look-ahead times between the multiple logical processes.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: February 7, 2017
    Assignee: International Business Machines Corporation
    Inventors: Tatsuya Ishikawa, Asim Munawar, Shuichi Shimizu
  • Publication number: 20160381439
    Abstract: An indoor environment management apparatus includes a receiver, a display controller, an operation receiver, and a control unit. The receiver is configured to receive a measurement result from a measurement device that measures data concerning an indoor environment. The display controller is configured to display, in an operation terminal of a user, an indoor environment map in which the measurement result received by the receiver is displayed on a floor plan of an indoor space. The operation receiver is configured to receive a user operation with respect to a control device that adjusts the indoor environment from the operation terminal. The control unit is configured to generate control information by which the indoor environment is changed depending on the user operation, and output the generated control information to the control device.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 29, 2016
    Inventors: Shinya SATOH, Kojiro FURUYA, Ruiko KIKKAWA, Tatsuya ISHIKAWA, Iyo KUDOH, Naoya MOTOMURA
  • Publication number: 20160354632
    Abstract: A golf ball trajectory prediction method that can predict the trajectory of a golf ball with high accuracy is provided. The golf ball trajectory prediction method includes: a swing measurement step of measuring a golfer's swing using a test golf club; a head behavior prediction step of predicting a behavior of a head of a target golf club when using the target golf club, with a measurement value of the swing measured in the swing measurement step as input; a ball initial behavior calculation step of calculating an initial behavior of a golf ball after colliding with the head of the golf club, based on the behavior of the head predicted in the head behavior prediction step; and a ball trajectory prediction step of predicting a trajectory of the golf ball, from the initial behavior of the golf ball calculated in the ball initial behavior calculation step.
    Type: Application
    Filed: May 10, 2016
    Publication date: December 8, 2016
    Applicants: BRIDGESTONE CORPORATION, Bridgestone Sports Co., Ltd.
    Inventors: Daisuke KONDO, Koji TAKAO, Tatsuya ISHIKAWA, Masataka KAI
  • Publication number: 20160338897
    Abstract: Provided is a walking assist device including a main frame configured to be worn by a user, a power unit mounted on the main frame, a pair of power transmission members for transmitting assist force provided by the power unit to femoral parts of the user and a control unit for controlling an operation of the power unit, wherein the control unit comprises a differential angle computation unit for computing a differential angle between angular positions of the femoral parts of the user about respective hip joints of the user; a differential angle phase computation unit for computing a differential angle phase according to the differential angle; and an assist force computation unit for computing an assist force to be applied to the user according to the differential angle phase.
    Type: Application
    Filed: May 16, 2016
    Publication date: November 24, 2016
    Inventors: Toru Takenaka, Tatsuya Ishikawa, Ken Yasuhara
  • Publication number: 20160339313
    Abstract: The present invention relates to a selection assisting method including a first selection step of selecting a recommended grip from a plurality of types of grips based on information on a hand size of a testing golfer; a measurement step of measuring by using a measurement device a swing characteristic of the testing golfer in a shot by using a golf club to which the recommended grip selected in the first selection step is attached; and a second selection step of selecting a recommended grip from the plurality of types of grips based on a measurement result in the measurement step.
    Type: Application
    Filed: April 28, 2016
    Publication date: November 24, 2016
    Applicant: Bridgestone Sports Co., Ltd.
    Inventors: Hirotada IWADE, Tatsuya ISHIKAWA, Shintaro YOSHIDA
  • Patent number: 9418288
    Abstract: A selection support apparatus acquires a plurality of types of characteristic data representing a swing characteristic of a testing golfer based on a test shot result of a golf club. The apparatus determines a swing type of the testing golfer out of swing types classified in advance based on at least one of the plurality of types of characteristic data. The apparatus calculates a recommended value for the testing golfer in association with a characteristic value that characterizes a component of a golf club based on at least one of the plurality of types of characteristic data. The apparatus selects, based on the swing type of the testing golfer, the recommended value, and component information representing a correspondence between components, the swing types, and the characteristic value, a recommended component from the components listed in the component information.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: August 16, 2016
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Tatsuya Ishikawa, Hirotada Iwade
  • Patent number: 9398138
    Abstract: A selection support apparatus acquires a plurality of types of characteristic data representing a swing characteristic of a testing golfer based on a test shot result of a golf club. The apparatus calculates each of recommended values for the testing golfer in association with a plurality of types of characteristic values that characterize a component of a golf club based on the plurality of types of characteristic data. The apparatus selects, based on the recommended values and component information representing a correspondence between components and the plurality of types of characteristic values, a recommended component from components listed in the component information.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: July 19, 2016
    Assignee: BRIDGESTONE SPORTS CO., LTD
    Inventors: Tatsuya Ishikawa, Hirotada Iwade
  • Patent number: 9372387
    Abstract: A laser projector includes a laser light source to emit laser light modulated in accordance with image information, a scanner to drive the laser light along two axes in horizontal and vertical directions and make scanning two-dimensionally with the laser light, a scanning mirror drive part to produce a drive signal of the scanner, a light source data conversion part to change arrangement in a horizontal direction of data applied to the laser light source and a timing generation part to synchronize the scanning mirror drive part with the light source data conversion part, and a start direction of laser scanning in the horizontal direction is changed every frame of the image information.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: June 21, 2016
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Yoshiho Seo, Tomoki Kobori, Satoshi Ouchi, Koji Hirata, Junichi Yokoyama, Hidehiro Ikeda, Masayuki Fukui, Masahiko Yatsu, Tatsuya Ishikawa
  • Patent number: 9343522
    Abstract: A ceramic powder for use in a grain boundary insulated semiconductor ceramic that has an excellent ESD withstanding voltage, a semiconductor ceramic capacitor using the ceramic powder, and a manufacturing method therefor. The ceramic powder for use in a SrTiO3 based grain boundary insulated semiconductor ceramic has a specific surface area of 4.0 m2/g or more and 8.0 m2/g or less, and a cumulative 90% grain size D90 of 1.2 ?m or less.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: May 17, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Mitsutoshi Kawamoto, Atsushi Sano, Tatsuya Ishikawa, Yasutomo Kobayashi, Yoshihiro Fujita, Yuki Kimura, Yuichi Kusano
  • Patent number: 9333109
    Abstract: The present invention provides a motion assist apparatus capable of reducing the discomfort of a user that may be caused when a motion is assisted. A motion assist apparatus 1 has actuators 11, which apply a force for controlling the posture of the upper body of a user P through the intermediary of a second frame 14, a posture estimation sensor PS, which detects a posture angle ? of the upper body of the user P, a control unit C, which controls the actuators 11 to reduce a deviation d? of a posture angle ? from a reference posture angle ?0, and a trigger sensor TS, which detects the occurrence of a trigger event. The control unit C sets the posture angle at the time of the occurrence of the trigger event as the reference posture angle ?0.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: May 10, 2016
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yasuhito Kuromiya, Hiroyuki Goto, Makoto Nakatsuka, Hideo Shimizu, Tatsuya Ishikawa
  • Publication number: 20160080708
    Abstract: A projection-type video display device which is easily radio-connected to a portable terminal and can freely switchably display video images sent from a plurality of portable terminals is provided. The projection-type video display device is directly connected to a portable terminal (2) by a radio transmission scheme without a relay station. The projection-type video display device (1) has a proximity communication unit (10) which transmits/receives device information of the projection-type display device (1) to/from the portable terminal, and the portable terminal (2) is put over or touched on the proximity communication unit (10) to transmit/receive the device information. The projection-type video display device has a radio signal input unit 20 which selects a desired portable terminal from the plurality of portable terminals and connects the selected portable terminal.
    Type: Application
    Filed: April 26, 2013
    Publication date: March 17, 2016
    Inventors: Hiroyuki URATA, Yusuke SUNAHARA, Tatsuya ISHIKAWA, Michio IWASAKI, Yuki NAGANO, Masaaki TAKATSUJI
  • Publication number: 20150335461
    Abstract: The present invention provides a motion assist apparatus capable of reducing the discomfort of a user that may be caused when a motion is assisted. A motion assist apparatus 1 has actuators 11, which apply a force for controlling the posture of the upper body of a user P through the intermediary of a second frame 14, a posture estimation sensor PS, which detects a posture angle ? of the upper body of the user P, a control unit C, which controls the actuators 11 to reduce a deviation d? of a posture angle ? from a reference posture angle ?0, and a trigger sensor TS, which detects the occurrence of a trigger event. The control unit C sets the posture angle at the time of the occurrence of the trigger event as the reference posture angle ?0.
    Type: Application
    Filed: May 20, 2015
    Publication date: November 26, 2015
    Inventors: Yasuhito KUROMIYA, Hiroyuki GOTO, Makoto NAKATSUKA, Hideo SHIMIZU, Tatsuya ISHIKAWA
  • Patent number: 9140248
    Abstract: A method of assembling a swash plate-type fluid machine, comprising: bringing, with each of a plurality of pistons suspended by a swash plate, a shaft assembly in a vertical axis posture and a cylinder block close to each other to insert each of the pistons into a corresponding one of cylinder bores, in incorporating the shaft assembly, which has the plurality of pistons each installed on the swash plate via a pair of shoes matching with both end surfaces of the swash plate, respectively, into the cylinder block.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: September 22, 2015
    Assignee: SANYO MACHINE WORKS, LTD.
    Inventor: Tatsuya Ishikawa
  • Patent number: 9115704
    Abstract: A method of assembling a shaft assembly having a plurality of pistons each installed on a swash plate via a pair of shoes matching with both end surfaces of the swash plate, respectively. The method includes: supporting a shaft having the swash plate in a vertical axis posture; incorporating the shoes between a first guide surface of a guide member and each of the pistons and between a second guide surface of the guide member and that piston, respectively; guiding the plurality of pistons to the swash plate in the vertical axis posture using the guide member; and matching the shoes with both the end surfaces of the swash plate respectively while disposing the pistons at circumferentially equidistant positions of the swash plate, respectively.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: August 25, 2015
    Assignee: SANYO MACHINE WORKS, LTD.
    Inventor: Tatsuya Ishikawa
  • Patent number: 9080670
    Abstract: A power transmission device for a vehicle configured with a rotary power member, and a mechanism configured with a plurality of operational states. A switching shaft changes the operational state of the operating mechanism and is moved by an electric actuator. A control transmission transmits the power from the actuator to the shaft. The housing for the rotary member includes is configured so that the switching shaft projects outwards from the housing. The electric actuator is arranged at a location facing, of a surface of the housing portion of the case, a portion that does not overlap another portion where the switching shaft projects, when viewed in the axial direction of the rotational axis of the rotary member. A part of the actuator is arranged on a case side relative to a vertical line passing through the portion where the switching shaft projects from the housing portion of the case.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: July 14, 2015
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Takuya Komatsu, Tomoo Atarashi, Tatsuya Ishikawa
  • Patent number: D741810
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: October 27, 2015
    Assignee: SMK Corporation
    Inventors: Ryo Sasaki, Koichiro Ejiri, Tatsuya Ishikawa