Patents by Inventor Katsuya Nakashima

Katsuya Nakashima 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: 11917382
    Abstract: An in-vehicle acoustic system includes a first amplifier that outputs a first audio signal to a first mid-range speaker; a second amplifier that outputs a second audio signal to a second mid-range speaker; a third amplifier that outputs a third audio signal to a first high-range speaker and a first low-range speaker; and a fourth amplifier that outputs a fourth audio signal to a second high-range speaker and a second low-range speaker, in which the third audio signal is inputted to the first high-range speaker, the fourth audio signal is inputted to the second high-range speaker, the first audio signal is inputted to a deep-bass speaker, the third audio signal is inputted to the first low-range speaker, the fourth audio signal is inputted to the second low-range speaker.
    Type: Grant
    Filed: June 8, 2021
    Date of Patent: February 27, 2024
    Assignee: YAMAHA Corporation
    Inventors: Katsuya Hirano, Tomokazu Hikida, Takakazu Nakashima
  • Publication number: 20210200810
    Abstract: Provided are a management apparatus, a matching system, a management method, a matching method, and a storage medium that can improve matching accuracy when performing matching using passage history information. The management apparatus includes: a passenger information acquisition unit that acquires passenger information related to a passenger; and a management unit that creates matching-use passage history information used for matching based on the passenger information and passage history information related to the passenger.
    Type: Application
    Filed: May 20, 2019
    Publication date: July 1, 2021
    Applicant: NEC CORPORATION
    Inventors: Katsuya NAKASHIMA, Akihiro IWANAMI, Koui NORIMATSU, Yusuke ASHIDA
  • Publication number: 20210192657
    Abstract: Provided are an information providing apparatus, a terminal, an identity verification system, an information providing method, and a storage medium that can perform identity verification with high usability without requiring a passenger to possess or carry a certificate or a substitute thereof. The information providing apparatus includes: a management unit that creates identity verification information on a passenger based on passage history information including biometric information on the passenger; and a transmission unit that, in response to receiving biometric information on a target person and a request for the identity verification information, transmits the identity verification information including the biometric information that matches the biometric information on the target person.
    Type: Application
    Filed: May 20, 2019
    Publication date: June 24, 2021
    Applicant: NEC Corporation
    Inventors: Katsuya NAKASHIMA, Akihiro IWANAMI, Koui NORIMATSU, Yusuke ASHIDA
  • Publication number: 20200234389
    Abstract: Provided are a notification apparatus, a terminal, a notification system, a notification method, and a storage medium that can smoothly notify that a passenger is a targeted user of an automated gate. The notification apparatus includes: a determination unit that determines whether or not a passenger is a targeted user of an automated gate; and a notification unit that transmits, to a mobile terminal carried by the passenger, a notification indicating whether or not the passenger is a targeted user of the automated gate.
    Type: Application
    Filed: May 20, 2019
    Publication date: July 23, 2020
    Applicant: NEC CORPORATION
    Inventors: Katsuya NAKASHIMA, Akihiro IWANAMI, Koui NORIMATSU, Yusuke ASHIDA
  • Patent number: 10174722
    Abstract: A fuel vapor recovering structure for a vehicle, the vehicle having a side member extending in a longitudinal direction of the vehicle, and a cross member extending along a vehicle width direction, includes: a canister attached to the side member for absorbing a fuel evaporation gas in a fuel tank of the vehicle; and an atmosphere communicating pipe having a first end connected to the canister, and a second end opened to the atmosphere and inserted in the cross member.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: January 8, 2019
    Assignees: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, MITSUBISHI JIDOSHA ENGINEERING KABUSHIKI KAISHA
    Inventors: Yusuke Koga, Katsuya Nakashima, Satoshi Oikawa
  • Publication number: 20170226966
    Abstract: A fuel vapor recovering structure for a vehicle, the vehicle having a side member extending in a longitudinal direction of the vehicle, and a cross member extending along a vehicle width direction, includes: a canister attached to the side member for absorbing a fuel evaporation gas in a fuel tank of the vehicle; and an atmosphere communicating pipe having a first end connected to the canister, and a second end opened to the atmosphere and inserted in the cross member.
    Type: Application
    Filed: February 8, 2017
    Publication date: August 10, 2017
    Applicants: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, MITSUBISHI JIDOSHA ENGINEERING KABUSHIKI KAISHA
    Inventors: Yusuke KOGA, Katsuya NAKASHIMA, Satoshi OIKAWA
  • Patent number: 8953654
    Abstract: A semiconductor laser driving circuit supplies a drive current to a semiconductor laser diode connected to an output terminal based on an input signal inputted thereto through an input terminal, thereby controlling the semiconductor laser diode. The semiconductor laser driving circuit includes a first supply portion supplying a bias current, and a first supply signal having a frequency component whose frequency is equal to or lower than a first frequency of the input signal, and a second supply portion supplying a second supply signal having a frequency component whose frequency is higher than a second frequency of the input signal.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: February 10, 2015
    Assignee: Sony Corporation
    Inventors: Katsuya Nakashima, Yoshifumi Miyajima
  • Patent number: 8660158
    Abstract: A semiconductor laser drive circuit controlling a semiconductor laser diode connected to an output terminal by providing a drive electric current to the semiconductor laser diode includes: a constant electric current source configured to provide an electric current to the output terminal, the constant electric current source being connected to a first electric power terminal and the output terminal; a current sinking circuit connected to the output terminal and a second electric power terminal; a current sourcing circuit configured to provide a predetermined electric current to the output terminal or the current sinking circuit, the current sourcing circuit being connected to the first electric power terminal and the output terminal; and a terminating resistor having a resistance component equal to that of the semiconductor laser diode, the terminating resistor being connected to the circuit sinking circuit and the current sourcing circuit.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: February 25, 2014
    Assignee: Sony Corporation
    Inventors: Yoshifumi Miyajima, Katsuya Nakashima
  • Publication number: 20120294324
    Abstract: A semiconductor laser drive circuit controlling a semiconductor laser diode connected to an output terminal by providing a drive electric current to the semiconductor laser diode includes: a constant electric current source configured to provide an electric current to the output terminal, the constant electric current source being connected to a first electric power terminal and the output terminal; a current sinking circuit connected to the output terminal and a second electric power terminal; a current sourcing circuit configured to provide a predetermined electric current to the output terminal or the current sinking circuit, the current sourcing circuit being connected to the first electric power terminal and the output terminal; and a terminating resistor having a resistance component equal to that of the semiconductor laser diode, the terminating resistor being connected to the circuit sinking circuit and the current sourcing circuit.
    Type: Application
    Filed: May 14, 2012
    Publication date: November 22, 2012
    Applicant: Sony Corporation
    Inventors: Yoshifumi Miyajima, Katsuya Nakashima
  • Patent number: 7640388
    Abstract: A file storage apparatus capable of restoring integrity of file management information even when a power supply abnormality occurs without lowering the write speed. When updating meta data stored in an HDD, log data for reconstructing the meta data after update from the meta data before update is written into a non-volatile RAM (NVRAM), then, after this writing is completed, the update is executed. Accordingly, even when the update use meta data temporarily stored in a cache memory is partially lost due to trouble such as a power supply abnormality and when update of the meta data of a hard disk is incomplete, the log data corresponding to the meta data for the update is held in the NVRAM, so it becomes possible to restore the integrity of the meta data on the hard disk by using this log data.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: December 29, 2009
    Assignee: Sony Corporation
    Inventors: Katsuya Nakashima, Hideki Hara, Takashi Akai, Toshifumi Nomura, Kazumi Sato, Yukihisa Tsuneda, Toshiyuki Nishihara
  • Patent number: 7565588
    Abstract: A semiconductor device and a data storage apparatus are provided. A semiconductor device includes: a cell array configured to have cells for data storage arranged in an array; at least one buffer configured to latch read data of the cell array in units of pages; an output circuit configured to output read data; and a data transfer circuit configured to sequentially transfer read data in units of pages latched in the buffer to the output circuit, wherein the data transfer circuit includes: at least one layer of a scan register train including a plurality of serially connected scan registers having a register and a multiplexer connected to each other to operate for each of clocks, wherein an output of the multiplexer is connected to an input of a register, and an input of a multiplexer is connected to an output of a register in a next previous stage.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: July 21, 2009
    Assignee: Sony Corporation
    Inventors: Katsuya Nakashima, Kazuhiro Suzuki, Satoshi Yamakawa, Toshiyuki Nishihara, Yukihisa Tsuneda
  • Patent number: 7312629
    Abstract: A method and apparatus are provided for a programmable impedance control circuit. In one example of the apparatus, a programmable impedance control circuit of an output driver of an input/output interface is provided. The programmable impedance control circuit includes a pull-up impedance programmed according to a multi-stage emulator and a pull-down impedance programmed according to the multi-stage emulator. The multi-stage emulator includes a first stage for calibrating a pull-up PMOS impedance at a voltage level Voh, a second stage for calibrating a pull-up NMOS impedance at a voltage level Vol, a third stage for calibrating a pull-down NMOS impedance at the voltage level Vol, a fourth stage for re-calibrating the pull-up NMOS impedance at the voltage level Vol, and fifth stage for calibrating a pull-down PMOS impedance at the voltage level Voh.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: December 25, 2007
    Assignees: Sony Corporation, Sony Electronics, Inc.
    Inventors: Mu-Hsiang Huang, Katsuya Nakashima, Yoshifumi Miyajima, Masahiro Ichihashi
  • Patent number: 7310262
    Abstract: A storage device including a ferroelectric memory cell array including a plurality of memory cells; sense amplifiers connected to the bit lines and selected by a column address; an internal counter able to generate the column address; and a control part controlling data access, wherein the control part accesses data by a first processing of reading out a plurality of words of data from memory cells of a word line and a plate line selected according to a row address and storing it in the sense amplifiers, a second processing of selecting sense amplifiers from the column address and inputting/outputting data with the outside, and a third processing of writing back the data of the sense amplifiers into the memory cells, with data being continuously input or output and transferred by repeatedly executing the second processing using the column address generated in the internal counter for a group of words read out to the sense amplifiers at the first processing, and a file storage device and a computer system util
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: December 18, 2007
    Assignee: Sony Corporation
    Inventors: Toshiyuki Nishihara, Katsuya Nakashima, Yukihisa Tsuneda
  • Publication number: 20070268039
    Abstract: A method and apparatus are provided for a programmable impedance control circuit. In one example of the apparatus, a programmable impedance control circuit of an output driver of an input/output interface is provided. The programmable impedance control circuit includes a pull-up impedance programmed according to a multi-stage emulator and a pull-down impedance programmed according to the multi-stage emulator. The multi-stage emulator includes a first stage for calibrating a pull-up PMOS impedance at a voltage level Voh, a second stage for calibrating a pull-up NMOS impedance at a voltage level Vol, a third stage for calibrating a pull-down NMOS impedance at the voltage level Vol, a fourth stage for re-calibrating the pull-up NMOS impedance at the voltage level Vol, and fifth stage for calibrating a pull-down PMOS impedance at the voltage level Voh.
    Type: Application
    Filed: May 17, 2006
    Publication date: November 22, 2007
    Inventors: Mu-Hsiang Huang, Katsuya Nakashima, Yoshifumi Miyajima, Masahiro Ichihashi
  • Publication number: 20070130488
    Abstract: A semiconductor device and a data storage apparatus are provided. A semiconductor device includes: a cell array configured to have cells for data storage arranged in an array; at least one buffer configured to latch read data of the cell array in units of pages; an output circuit configured to output read data; and a data transfer circuit configured to sequentially transfer read data in units of pages latched in the buffer to the output circuit, wherein the data transfer circuit includes: at least one layer of a scan register train including a plurality of serially connected scan registers having a register and a multiplexer connected to each other to operate for each of clocks, wherein an output of the multiplexer is connected to an input of a register, and an input of a multiplexer is connected to an output of a register in a next previous stage.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 7, 2007
    Applicant: Sony Corporation
    Inventors: Katsuya Nakashima, Kazuhiro Suzuki, Satoshi Yamakawa, Toshiyuki Nishihara, Yukihisa Tsuneda
  • Publication number: 20070041234
    Abstract: A storage device including a ferroelectric memory cell array including a plurality of memory cells; sense amplifiers connected to the bit lines and selected by a column address; an internal counter able to generate the column address; and a control part controlling data access, wherein the control part accesses data by a first processing of reading out a plurality of words of data from memory cells of a word line and a plate line selected according to a row address and storing it in the sense amplifiers, a second processing of selecting sense amplifiers from the column address and inputting/outputting data with the outside, and a third processing of writing back the data of the sense amplifiers into the memory cells, data being continuously input or output and transferred by repeatedly executing the second processsing using the column address generated in the internal counter for a group of words read out to the sense amplifiers at the first processing,and a file storage device and a computer system utilizing
    Type: Application
    Filed: August 22, 2006
    Publication date: February 22, 2007
    Applicant: Sony Corporation
    Inventors: Toshiyuki Nishihara, Katsuya Nakashima, Yukihisa Tsuneda
  • Patent number: 7061297
    Abstract: According to the present invention, an input buffer circuit comprises a first and a second buffer circuits operated at different first and second drive voltages and connected in turn, and an output potential control circuit is provided for carrying out a control so that, in spite of a voltage value of the first drive voltage, a threshold of an output potential of the first buffer circuit becomes a threshold of an input potential of the second buffer circuit. Further, the output potential control circuit is configured such that the first buffer circuit is constituted by a pair of complementary current mirror amplifiers, and comprises feedback control means for carrying out feedback-control to the generation of the output potential for the first buffer circuit on the basis of an output potential on a reference side of this current mirror amplifier.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: June 13, 2006
    Assignee: Sony Corporation
    Inventor: Katsuya Nakashima
  • Publication number: 20050080762
    Abstract: A file storage apparatus capable of restoring integrity of file management information even when a power supply abnormality occurs without lowering the write speed. When updating meta data stored in an HDD, log data for reconstructing the meta data after update from the meta data before update is written into a non-volatile RAM (NVRAM), then, after this writing is completed, the update is executed. Accordingly, even when the update use meta data temporarily stored in a cache memory is partially lost due to trouble such as a power supply abnormality and when update of the meta data of a hard disk is incomplete, the log data corresponding to the meta data for the update is held in the NVRAM, so it becomes possible to restore the integrity of the meta data on the hard disk by using this log data.
    Type: Application
    Filed: October 8, 2004
    Publication date: April 14, 2005
    Inventors: Katsuya Nakashima, Hideki Hara, Takashi Akai, Toshifumi Nomura, Kazumi Sato, Yukihisa Tsuneda, Toshiyuki Nishihara
  • Publication number: 20050017769
    Abstract: According to the present invention, an input buffer circuit comprises a first and a second buffer circuits operated at different first and second drive voltages and connected in turn, and an output potential control circuit is provided for carrying out a control so that, in spite of a voltage value of the first drive voltage, a threshold of an output potential of the first buffer circuit becomes a threshold of an input potential of the second buffer circuit. Further, the output potential control circuit is configured such that the first buffer circuit is constituted by a pair of complementary current mirror amplifiers, and comprises feedback control means for carrying out feedback-control to the generation of the output potential for the first buffer circuit on the basis of an output potential on a reference side of this current mirror amplifier.
    Type: Application
    Filed: July 9, 2004
    Publication date: January 27, 2005
    Inventor: Katsuya Nakashima
  • Publication number: 20050007842
    Abstract: The present invention is proposed to attain the higher speed and lower electric power consumption in an amplifying circuit, wherein the amplifying circuit comprises a differential type amplifying circuit, a latch type amplifying circuit, and a switching circuit for switching the differential type amplifying circuit and the latch type amplifying circuit. In this configuration, the differential type amplifying circuit and the latch type amplifying circuit have a common load. Further in the present amplifying circuit, the switching circuit stops the operation of the differential type amplifying circuit after starting the operation of the latch type amplifying circuit.
    Type: Application
    Filed: July 2, 2004
    Publication date: January 13, 2005
    Inventor: Katsuya Nakashima