Patents by Inventor Kenichi Kawasaki

Kenichi Kawasaki 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: 9054078
    Abstract: A signal processing device includes: signal processing circuits. The signal processing circuit includes an input/output circuit configured by an input circuit serving as an input interface of a signal of a predetermined frequency band and/or an output circuit serving as an output interface of a signal of the frequency band and performs transmission of a signal of the frequency band between the signal processing circuit and another signal processing circuit. The output circuits of one and another signal processing circuits include circuits having the same configuration. The input circuits of the one and another signal processing circuits include other circuits having the same configurations. The input/output circuits of the one and another signal processing circuits can perform transmission of a signal of the predetermined frequency band even when any one of transmission media having mutually different characteristics is mediated.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: June 9, 2015
    Assignee: SONY CORPORATION
    Inventors: Kenichi Kawasaki, Yusuke Tanaka, Hiroyuki Yamagishi, Ali Hajimiri
  • Publication number: 20150095593
    Abstract: A recording apparatus includes a recording unit, a waveguide forming unit, a communication unit, and a memory controller. The recording unit is configured to record and hold data. The waveguide forming unit is configured to function as a transmission path that transmits the data. The communication unit is configured to communicate with the waveguide forming unit. The memory controller is configured to control input and output of the data to and from the recording unit.
    Type: Application
    Filed: September 24, 2014
    Publication date: April 2, 2015
    Applicant: Sony Corporation
    Inventors: Takeshi Kubo, Takeharu Takasawa, Naofumi Goto, Seiji Kobayashi, Kenichi Kawasaki
  • Publication number: 20150095543
    Abstract: A data bus system includes a plurality of recording apparatuses, a transmission path, and a management apparatus. The plurality of recording apparatuses are configured to record and hold data. The transmission path is connected to the plurality of recording apparatuses by wireless communication and configured to transmit the data. The management apparatus is configured to manage the plurality of recording apparatuses and the transmission path.
    Type: Application
    Filed: September 24, 2014
    Publication date: April 2, 2015
    Applicant: Sony Corporation
    Inventors: Takeshi Kubo, Takeharu Takasawa, Naofumi Goto, Seiji Kobayashi, Kenichi Kawasaki
  • Publication number: 20150043623
    Abstract: A wireless transmission system includes: a communication unit for transmission; and a communication unit for reception. The communication units for transmission and reception are housed in a housing of the same electronic apparatus, or the communication unit for transmission is housed in a housing of first electronic apparatus and the communication unit for reception is housed in a housing of second electronic apparatus and a wireless signal transmission path enabling wireless information transmission between the communication units is formed between the communication units when the first and the second electronic apparatus are disposed at given positions to be integrated with each other. The communication unit for transmission includes a first carrier signal generating unit and a first frequency converter, and the communication unit for reception includes a second carrier signal generating unit, and a second frequency converter.
    Type: Application
    Filed: August 6, 2014
    Publication date: February 12, 2015
    Applicant: SONY CORPORATION
    Inventor: Kenichi Kawasaki
  • Patent number: 8952732
    Abstract: A signal processor includes: a plurality of frequency converters which perform frequency conversion of input signals to output converted signals; and an output section which combines the converted signals output from the plurality of frequency converters and outputs a composite signal, wherein the plurality of frequency converters are formed in a one-chip semiconductor chip, and the plurality of frequency converters perform frequency conversion into converted signals in different frequency bands.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: February 10, 2015
    Assignee: Sony Corporation
    Inventor: Kenichi Kawasaki
  • Publication number: 20150034701
    Abstract: An electronic part including an electronic part main body and an external electrode on the surface of the electronic part main body. The external electrode includes at least one alloy layer selected from among a Cu—Ni alloy layer and a Cu—Mn alloy layer, and an antioxidant film formed on the outer side of the alloy layer. The antioxidant film is one of a Sn-containing film, a noble metal film, and an organic substance film.
    Type: Application
    Filed: September 5, 2014
    Publication date: February 5, 2015
    Inventors: Hidekiyo Takaoka, Kosuke Nakano, Yutaka Ota, Kenichi Kawasaki
  • Publication number: 20150028909
    Abstract: A semiconductor device includes: a first circuit; a first power switch provided either between a power supply potential terminal and a power supply potential node of the first circuit or between a reference potential terminal and a reference potential node of the first circuit; a power switch control circuit configured to control a voltage of a control terminal of the first power switch; a test terminal; and a first test control circuit configured to control connection of the test terminal and the control terminal of the first power switch.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 29, 2015
    Inventor: Kenichi KAWASAKI
  • Patent number: 8943333
    Abstract: The semiconductor intergrated circuit comprises: a circuit that executes a predetermined process and a switching circuit that selects a power impedance, The switching circuit selects the power impedance, in accordance with a variation in voltage supplied to the circuit, so that a resonant frequency of the semiconductor integrated circuit is different from a operation frequency of the circuit.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: January 27, 2015
    Assignee: Fujitsu Limited
    Inventor: Kenichi Kawasaki
  • Publication number: 20140340816
    Abstract: An electronic part that includes an electronic part main body and an external electrode on the surface of the electronic part main body. The external electrode includes at least one alloy layer selected from among a Cu—Ni alloy layer and a Cu—Mn alloy layer, and a Sn-containing layer on the outer side of the alloy layer. The Sn-containing layer is the outermost layer of the external electrode. The Sn-containing layer is in contact with the alloy layer.
    Type: Application
    Filed: August 4, 2014
    Publication date: November 20, 2014
    Inventors: Hidekiyo Takaoka, Kosuke Nakano, Yutaka Ota, Kenichi Kawasaki
  • Patent number: 8890362
    Abstract: A semiconductor device includes a plurality of internal circuits, a plurality of low drop output regulators, and a power management unit. The plurality of low drop output regulators are configured to reduce a power source voltage applied from an outside and generate supply voltages which are to be supplied to the plurality of internal circuits. The power management unit is configured to change a voltage value of the power source voltage in accordance with a state of combination of voltage values of the plurality of supply voltages generated by the plurality of low drop output regulators.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: November 18, 2014
    Assignee: Fujitsu Limited
    Inventor: Kenichi Kawasaki
  • Publication number: 20140312744
    Abstract: A method for manufacturing a multilayer electronic component includes the steps of preparing a laminate including a plurality of laminated insulating layers and a plurality of internal electrodes disposed along interfaces between the insulating layers, edges of the internal electrodes being exposed at a predetermined surface of the laminate, and forming an external electrode on the predetermined surface to electrically connect exposed the edges of the internal electrodes. The step of forming an external electrode includes a plating step of forming a continuous plating film by depositing plating deposits on the edges of the internal electrodes exposed at the predetermined surface and by performing plating growth to be connected to each other, and a heat treatment step of performing a heat treatment at an oxygen partial pressure of about 5 ppm or less and at a temperature of about 600° C. or more.
    Type: Application
    Filed: July 1, 2014
    Publication date: October 23, 2014
    Inventors: Akihiro MOTOKI, Makoto OGAWA, Kenichi KAWASAKI, Shunsuke TAKEUCHI, Shigeyuki KURODA
  • Publication number: 20140312950
    Abstract: A circuit including: an input stage that includes a first input unit into which input data is input and a pair of first output units and is driven by a first power-supply voltage; a pair of first gate elements that includes first transistors, and is driven by a clock that includes a second power-supply voltage that is lower than the first power-supply voltage; a first latch circuit that includes a pair of second input units, and is driven by the first power-supply voltage; a pair of second gate elements that includes second transistors, and is driven by an inverted clock of the clock; and a second latch circuit that includes a pair of third input units, and a third output unit that outputs one of a pair of pieces of data, and is driven by the first power-supply voltage.
    Type: Application
    Filed: March 6, 2014
    Publication date: October 23, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Satoshi TANABE, Kenichi KAWASAKI
  • Publication number: 20140314156
    Abstract: A digital data signal, such as a digital video signal, is intentionally pre-distorted before being sent over a network. In one embodiment, this pre-distortion may be performed in accordance with a pre-distortion pattern or algorithm which is shared with only intended receivers. The pre-distortion pattern may be used to vary the pre-distortion on a periodic basis, as frequently as on a symbol-by-symbol basis. The pre-distortion function may include distorting the phase and/or the amplitude of the digital signal's modulation.
    Type: Application
    Filed: July 1, 2014
    Publication date: October 23, 2014
    Inventors: Robert Hardacker, Kenichi Kawasaki
  • Patent number: 8831073
    Abstract: A wireless transmission system includes: a communication unit for transmission; and a communication unit for reception. The communication units for transmission and reception are housed in a housing of the same electronic apparatus, or the communication unit for transmission is housed in a housing of first electronic apparatus and the communication unit for reception is housed in a housing of second electronic apparatus and a wireless signal transmission path enabling wireless information transmission between the communication units is formed between the communication units when the first and the second electronic apparatus are disposed at given positions to be integrated with each other. The communication unit for transmission includes a first carrier signal generating unit and a first frequency converter, and the communication unit for reception includes a second carrier signal generating unit, and a second frequency converter.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: September 9, 2014
    Assignee: Sony Corporation
    Inventor: Kenichi Kawasaki
  • Patent number: 8824529
    Abstract: A signal transmission system includes: a transmitting section including a first carrier signal generating section configured to generate a carrier signal for modulation and a first frequency converting section configured to generate a transmission signal by frequency-converting a transmission object signal by the carrier signal for modulation, the carrier signal for modulation being generated by the first carrier signal generating section; and a receiving section including a second carrier signal generating section configured to generate a carrier signal for demodulation and a second frequency converting section configured to frequency-convert the transmission signal received by the carrier signal for demodulation, the carrier signal for demodulation being generated by the second carrier signal generating section.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: September 2, 2014
    Assignee: Sony Corporation
    Inventors: Satoshi Fukuda, Kenichi Kawasaki, Satoru Shinke
  • Patent number: 8804303
    Abstract: A method for manufacturing a multilayer electronic component includes the steps of preparing a laminate including a plurality of laminated insulating layers and a plurality of internal electrodes disposed along interfaces between the insulating layers, edges of the internal electrodes being exposed at a predetermined surface of the laminate, and forming an external electrode on the predetermined surface to electrically connect exposed the edges of the internal electrodes. The step of forming an external electrode includes a plating step of forming a continuous plating film by depositing plating deposits on the edges of the internal electrodes exposed at the predetermined surface and by performing plating growth to be connected to each other, and a heat treatment step of performing a heat treatment at an oxygen partial pressure of about 5 ppm or less and at a temperature of about 600° C. or more.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: August 12, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akihiro Motoki, Makoto Ogawa, Kenichi Kawasaki, Shunsuke Takeuchi, Shigeyuki Kuroda
  • Patent number: 8792640
    Abstract: A digital data signal, such as a digital video signal, is intentionally pre-distorted before being sent over a network. In one embodiment, this pre-distortion may be performed in accordance with a pre-distortion pattern or algorithm which is shared with only intended receivers. The pre-distortion pattern may be used to vary the pre-distortion on a periodic basis, as frequently as on a symbol-by-symbol basis. The pre-distortion function may include distorting the phase and/or the amplitude of the digital signal's modulation.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: July 29, 2014
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Kenichi Kawasaki, Robert Hardacker
  • Patent number: 8786304
    Abstract: A semiconductor device whose operational state is switched between a test state and a normal operational state according to a logical value of a signal input from the outside is provided. The semiconductor device includes a first power line, a second power line, a switch that is controlled by a signal line to couple/isolate the first power line to/from the second power line, a control circuit that outputs a control signal, and a state switching circuit that drives the signal line to couple/isolate the first power line to/from the second power line according to a logical value of the control signal when the input signal is one of logical values, whereas the state switching circuit drives the signal line to couple the first power line to the second power line when the first signal is the other logical value.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: July 22, 2014
    Assignee: Fujitsu Limited
    Inventor: Kenichi Kawasaki
  • Publication number: 20140158293
    Abstract: A method for manufacturing a multilayer electronic component includes the steps of preparing a laminate including a plurality of laminated insulating layers and a plurality of internal electrodes disposed along interfaces between the insulating layers, edges of the internal electrodes being exposed at a predetermined surface of the laminate, and forming an external electrode on the predetermined surface to electrically connect exposed the edges of the internal electrodes. The step of forming an external electrode includes a plating step of forming a continuous plating film by depositing plating deposits on the edges of the internal electrodes exposed at the predetermined surface and by performing plating growth to be connected to each other, and a heat treatment step of performing a heat treatment at an oxygen partial pressure of about 5 ppm or less and at a temperature of about 600° C. or more.
    Type: Application
    Filed: February 11, 2014
    Publication date: June 12, 2014
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Akihiro MOTOKI, Makoto OGAWA, Kenichi KAWASAKI, Shunsuke TAKEUCHI, Shigeyuki KURODA
  • Publication number: 20140145707
    Abstract: A voltage fluctuation detection circuit includes an oscillation circuit configured to receive an operation voltage and perform an oscillation operation, an operation voltage generation unit configured to reduce a detection target voltage and generate the operation voltage, and a fluctuation detection unit configured to measure an oscillation frequency of the oscillation circuit and detect a fluctuation of the detection target voltage.
    Type: Application
    Filed: September 26, 2013
    Publication date: May 29, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Satoshi Tanabe, Kenichi Kawasaki