Patents by Inventor Masakazu Kato

Masakazu Kato 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: 8660483
    Abstract: According to one embodiment, an antenna switching system includes a (a?3) antennas and a selector. The selector selects b1 (2?b1<a) antennas out of the antennas at first timing, causes the selected antennas to configure an array antenna, selects, at second timing, b2 (2?b2<a) antennas including c (1?c<b1) antennas among the antennas used to configure the array antenna at the first timing out of the antennas, and causes the selected antennas to configure an array antenna.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: February 25, 2014
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Sunao Tsuchida, Masakazu Kato, Jun Yaginuma
  • Publication number: 20130280913
    Abstract: There is provided a composition for forming a resist underlayer film having heat resistance for use in a lithography process in semiconductor device production. A composition for forming a resist underlayer film, comprising a polymer that contains a unit structure of formula (1) and a unit structure of formula (2) in a proportion of 3 to 97:97 to 3 in molar ratio: A method for producing a semiconductor device, including the steps of: forming an underlayer film using the composition for forming a resist underlayer film on a semiconductor substrate; forming a hard mask on the underlayer film; further forming a resist film on the hard mask; forming a patterned resist film and developing; etching the hard mask according to the patterned resist film; etching the underlayer film according to the patterned hard mask; and processing the semiconductor substrate according to the patterned underlayer film.
    Type: Application
    Filed: December 5, 2011
    Publication date: October 24, 2013
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Tetsuya Shinjo, Hiroaki Okuyama, Keisuke Hashimoto, Yasunobu Someya, Ryo Karasawa, Masakazu Kato
  • Publication number: 20130189533
    Abstract: There is provided a resist underlayer film forming composition for forming a resist underlayer film providing heat resistance properties and hardmask characteristics. A resist underlayer film forming composition for lithography, comprising: a polymer containing a unit structure of Formula (1): ?O—Ar1???Formula (1) (in Formula (1), Ar1 is a C6-50 arylene group or an organic group containing a heterocyclic group), a unit structure of Formula (2): ?O—Ar2—O—Ar3-T-Ar4???Formula (2) (in Formula (2), Ar2, Ar3, and Ar4 are individually a C6-50 arylene group or an organic group containing a heterocyclic group; and T is a carbonyl group or a sulfonyl group), or a combination of the unit structure of Formula (1) and the unit structure of Formula (2). The organic groups of Ar1 and Ar2 containing arylene group may be organic groups containing a fluorene structure.
    Type: Application
    Filed: October 7, 2011
    Publication date: July 25, 2013
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Hiroaki Okuyama, Yasunobu Someya, Masakazu Kato, Tetsuya Shinjo, Keisuke Hashimoto
  • Patent number: 8462093
    Abstract: A IF inversion driving method writes signal voltage of the same polarity to a signal line over a 1F period, and therefore cannot prevent occurrence of crosstalk caused by coupling. Also, shading is caused. In an active matrix type liquid crystal display device including a pixel array unit 11 formed by two-dimensionally arranging pixels 20 in a form of a matrix, the pixel array unit 11 is divided into a plurality of areas (two areas 11A and 11B in a present example) in a vertical direction, while the plurality of areas being vertically scanned in order (alternately in the present example) in a unit of a row, pixels of the plurality of areas are selected in a unit of a row, and a video signal Vsig reversed in polarity in each H is written to the pixels of the selected row.
    Type: Grant
    Filed: May 10, 2005
    Date of Patent: June 11, 2013
    Assignee: Sony Corporation
    Inventors: Masakazu Kato, Hiroyuki Sakurai, Kohichi Ohmura
  • Patent number: 8436782
    Abstract: A communication antenna device for use in radio communication between a moving body and an access point comprises an antenna main body for transmitting and receiving a signal, a base side member of the moving body for supporting the antenna main body, and a damping mechanism provided between the base side member and the antenna main body and suppressing high frequency vibration of the antenna main body that has an impact on the radio communication. The damping mechanism includes an elastic member for absorbing high frequency vibration that has an impact on the radio communication. The elastic member has such characteristics as absorbing high frequency vibration of the antenna main body that makes changes in amplitude or frequency of a transmission signal from the antenna main body to the extent of inducing a demodulation error when the transmission signal is received at an antenna of the other party.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: May 7, 2013
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Tomonori Sugiyama, Naohiro Matsushita, Masakazu Kato, Sadatoshi Oishi, Jun Yaginuma, Sunao Tsuchida
  • Publication number: 20130051563
    Abstract: A speaker apparatus includes speaker units, a first inputting section to which one channel audio signal is supplied, a second inputting section to which at least L-channel and R-channel audio signals are supplied, an acoustic effect imparting section that performs a first signal processing on the audio signal supplied to the first inputting section to output L channel and R channel audio signals, an outputting section that outputs the audio signal supplied to the first inputting section to at least one of the speaker units, and a widening effect imparting section that performs a second signal processing for imparting a sound image widening effect on both the L-channel and R-channel audio signals and the at least L-channel and R-channel audio signals and supplies processed audio signals to speaker units for corresponding channels respectively.
    Type: Application
    Filed: August 30, 2012
    Publication date: February 28, 2013
    Applicant: YAMAHA CORPORATION
    Inventors: Ryuichiro Kuroki, Masakazu Kato, Julian Ward
  • Publication number: 20120142285
    Abstract: According to one embodiment, an antenna switching system includes a (a?3) antennas and a selector. The selector selects b1 (2?b1<a) antennas out of the antennas at first timing, causes the selected antennas to configure an array antenna, selects, at second timing, b2 (2?b2<a) antennas including c (1?c<b1) antennas among the antennas used to configure the array antenna at the first timing out of the antennas, and causes the selected antennas to configure an array antenna.
    Type: Application
    Filed: December 1, 2011
    Publication date: June 7, 2012
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Sunao Tsuchida, Masakazu Kato, Jun Yaginuma
  • Patent number: 8089497
    Abstract: A driving method for a display device includes the steps of: performing writing processing to apply a video signal to a first node over a data line via a writing transistor with a predetermined driving voltage applied from a power supply to one of source/drain regions of a driving transistor, wherein the trailing edge of a scanning signal to be applied to a gate electrode of the writing transistor at the writing processing step is inclined; and the luminance characteristic of display elements connected onto each of a scan lines is controlled by controlling the crest value of the scanning signal, which is applied to first to M-th scan lines, for each of the scan lines.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: January 3, 2012
    Assignee: Sony Corporation
    Inventors: Masakazu Kato, Katsuhide Uchino, Hidekazu Miyake
  • Patent number: 8077010
    Abstract: RFID interrogator device carries out an automatic gain control when an RF signal from RFID tag with a backscatter radio-communication is received. To carry out the automatic gain control, amplitude of the reception signal is measured within a prescribed time corresponding to a length of preamble added to the head of data of the RF signal. An AGC value is determined based on the measured amplitude value.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: December 13, 2011
    Assignee: Toshiba TEC Kabushiki Kaisha
    Inventor: Masakazu Kato
  • Patent number: 8023579
    Abstract: A quadrature demodulation device effectively utilizes the result of quadrature detection in order to improve demodulation efficiency. The quadrature modulation device includes a quadrature detector DT which performs quadrature detection on a reception signal obtained by receiving a radio wave from a radio frequency identification tag, to generate an in-phase signal and a quadrature-phase signal, and a demodulation circuit DM which detects a preamble of a particular transition pattern in at least one of the in-phase signal and the quadrature-phase signal and which decodes the at least one of the in-phase signal and the quadrature-phase signal to obtain data succeeding the preamble, the demodulation circuit DM further performing error detection on a decoding result to check for errors.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: September 20, 2011
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Kouichi Sano, Yasuo Matsumoto, Masakazu Kato, Takahiro Shimura
  • Patent number: 8000375
    Abstract: A hopping pattern setting section sets, as a frequency hopping pattern code, elements of a matrix in which all integers of “1” to “the number of frequencies to be used” appear only once and which is obtained by adding, as an offset, any one of integers of “0” to “(the number of frequencies to be used)?1” to each of elements of a matrix obtained by excluding integers larger than the number of frequencies to be used from a matrix in which all integers of “1” to “(prime number larger than the number of frequencies to be used)?1” appear only once. A frequency oscillation section converts the frequency hopping pattern code into the frequencies to be used to output unmodulated signals of the frequencies to a transmission section and a reception section.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: August 16, 2011
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Nobuo Murofushi, Masakazu Kato
  • Publication number: 20110156985
    Abstract: A communication antenna device for use in radio communication between a moving body and an access point comprises an antenna main body for transmitting and receiving a signal, a base side member of the moving body for supporting the antenna main body, and a damping mechanism provided between the base side member and the antenna main body and suppressing high frequency vibration of the antenna main body that has an impact on the radio communication. The damping mechanism includes an elastic member for absorbing high frequency vibration that has an impact on the radio communication. The elastic member has such characteristics as absorbing high frequency vibration of the antenna main body that makes changes in amplitude or frequency of a transmission signal from the antenna main body to the extent of inducing a demodulation error when the transmission signal is received at an antenna of the other party.
    Type: Application
    Filed: February 5, 2009
    Publication date: June 30, 2011
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Tomonori Sugiyama, Naohiro Matsushita, Masakazu Kato, Sadatoshi Oishi, Jun Yaginuma, Sunao Tsuchida
  • Publication number: 20100328038
    Abstract: A wireless tag reading apparatus comprising: an electric field-type reader antenna which has an electromagnetic wave radiating side arranged toward a wireless tag for both near-field and far-field operation and which transmits and receives a signal to and from the wireless tag by an electric field; a magnetic field-type reader antenna which has an electromagnetic wave radiating side arranged toward the wireless tag from a different direction from the electromagnetic wave radiating side of the electric field-type reader antenna and not orthogonally to an antenna side of the wireless tag and which transmits and receives a signal to and from the wireless tag by a magnetic field; and an antenna switching unit which switches use of the magnetic field-type reader antenna and the electric field-type reader antenna.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 30, 2010
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Masakazu KATO
  • Patent number: 7829337
    Abstract: A cell-sheet releasing agent of the present invention contains an aminated polyrotaxane. The polyrotaxane constituting the skeleton of the cell-releasing agent of the present invention has a structure in which cavities of a plurality of cyclic molecules are threaded onto a linear molecule and both terminals of the linear molecule have a bulky cap bonded thereto so that the cyclic molecules are not dethreaded from the linear molecule. Furthermore, the aminated polyrotaxane contained in the cell-releasing agent of the present invention is a compound in which at least some of hydroxy groups in the cyclodextrin structure contained in the polyrotaxane are each substituted with a substituent having an amino group. According to this cell-sheet releasing agent, cultured cells anchored to the surface of a container can be released without damaging the cells and without controlling the temperature.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: November 9, 2010
    Assignees: Japan Science And Technology Agency, Japan Tissue Engineering Co., Ltd., Japan Advanced Institute of Science And Technology
    Inventors: Wanpen Tachaboonyakiat, Masakazu Kato, Tooru Ooya, Nobuhiko Yui
  • Publication number: 20100259533
    Abstract: A display includes: a pixel circuit array section including a plurality of light-emitting elements and a plurality of pixel circuits; a scanning line drive circuit sequentially selecting the plurality of light-emitting elements and the plurality of the pixel circuits; a signal line drive circuit writing a light emission potential corresponding to a signal potential to a selected pixel circuit; and a control circuit, in which in each frame period, the control circuit outputs a light-off control signal at a lapse of a first period after writing the light emission potential to the selected pixel circuit by the signal line drive circuit, and then the control circuit outputs a light-on control signal at a lapse of a second period, and after that, the control circuit outputs a light-off control signal at a lapse of a third period which is longer than the first period.
    Type: Application
    Filed: March 25, 2010
    Publication date: October 14, 2010
    Applicant: SONY CORPORATION
    Inventors: Junichi Yamashita, Masakazu Kato, Katsuhide Uchino
  • Publication number: 20100201717
    Abstract: A driving method for a display device includes the steps of: performing writing processing to apply a video signal to a first node over a data line via a writing transistor with a predetermined driving voltage applied from a power supply to one of source/drain regions of a driving transistor, wherein the trailing edge of a scanning signal to be applied to a gate electrode of the writing transistor at the writing processing step is inclined; and the luminance characteristic of display elements connected onto each of a scan lines is controlled by controlling the crest value of the scanning signal, which is applied to first to M-th scan lines, for each of the scan lines.
    Type: Application
    Filed: January 14, 2010
    Publication date: August 12, 2010
    Applicant: Sony Corporation
    Inventors: Masakazu Kato, Katsuhide Uchino, Hidekazu Miyake
  • Publication number: 20100118017
    Abstract: An organic electroluminescent light emitting unit driving method includes a process (a) to execute preprocessing, a process (b) to execute threshold voltage cancellation processing, a process (c) to execute writing processing, a process (d) to set a first node to a floating state, and a process (e) to execute a series of processes at least once wherein after driving an organic electroluminescent light emitting unit, a reverse voltage is applied between the anode and cathode electrodes of the organic electroluminescent light emitting unit, with a series of processes (a) through (e) being repeated, with an auxiliary driving process being provided wherein a forward voltage is applied between the anode and cathode electrodes of the organic electroluminescent light emitting unit over a certain period, and with a period between the termination of the auxiliary driving process and the termination of the next process (b) being suppressed to 1 millisecond or less.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 13, 2010
    Applicant: SONY CORPORATION
    Inventors: Junichi Yamashita, Masakazu Kato, Katsuhide Uchino
  • Publication number: 20100104088
    Abstract: In a noise estimation apparatus, a microphone converts sound into an electric signal and outputs the electric signal as a sound signal. A noise estimator performs estimation for estimating a magnitude of a noise component contained in the sound signal so as to generate an estimated noise signal. The noise estimator limits a minimum value of a noise level of the noise component contained in the sound signal during the estimation to a predetermined default value, and integrates the noise level having the limited minimum value to generate the estimated noise signal.
    Type: Application
    Filed: October 26, 2009
    Publication date: April 29, 2010
    Applicant: Yamaha Corporation
    Inventor: Masakazu KATO
  • Patent number: 7692676
    Abstract: The present invention provides a thermal head capable of reliably preventing occurrence of connection failure or insulation failure in each of the layers in a multilayered wiring structure, enabling easy manufacture even in the real edging constitution, capable of maintaining reliability and, further, with no trouble in the terminal connection of a common electrode even if three or more thermal head.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: April 6, 2010
    Assignee: Alps Electric Co., Ltd.
    Inventors: Takashi Shirakawa, Masakazu Kato
  • Publication number: 20100075253
    Abstract: There is provided a resist underlayer film forming composition that is used in a lithography process for the production of semiconductor devices and that can be developed with an alkaline developer for photoresists, and a method of forming a photoresist pattern by using the resist underlayer film forming composition. The resist underlayer film forming composition used in a lithography process for a production of a semiconductor device comprising: an alkali-soluble resin (a); a polynuclear phenol (b); a compound (c) having at least two vinylether groups; and a photoacid generator (d). The alkali-soluble resin (a) may be a polymer containing a unit structure having a carboxyl group, and the polynuclear phenol (b) may be a compound having 2 to 30 phenolic hydroxyl groups in the molecule.
    Type: Application
    Filed: December 11, 2007
    Publication date: March 25, 2010
    Applicant: NISSAN CHEMICAL INDUSTRIES , LTD.
    Inventors: Masakazu Kato, Takahiro Hamada, Tomoyuki Enomoto