Patents by Inventor Keiichi Komatsu

Keiichi Komatsu 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: 20240132767
    Abstract: A thermally conductive resin composition includes a first resin phase, a second resin phase, and a thermally conductive filler. The first resin phase and the second resin phase are phase-separated. The thermally conductive filler in the first resin phase has a density higher than a density of the thermally conductive filler in the second resin phase.
    Type: Application
    Filed: March 9, 2022
    Publication date: April 25, 2024
    Inventors: Keiichi KOMATSU, Asahi KASUE, Atsushi YAMAGUCHI
  • Publication number: 20230085242
    Abstract: A thermally conductive silicone composition contains a silicone component (A) and a polyhedral alumina filler (B) having a gelatinization ratio equal to or higher than 80%.
    Type: Application
    Filed: February 5, 2021
    Publication date: March 16, 2023
    Inventors: Keiichi KOMATSU, Hiroshi YAMAMOTO
  • Publication number: 20220363836
    Abstract: A thermally conductive silicone composition contains a silicone component (A) and a tetradecahedral filler (B1).
    Type: Application
    Filed: October 30, 2020
    Publication date: November 17, 2022
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiroshi YAMAMOTO, Keiichi KOMATSU
  • Publication number: 20220306863
    Abstract: A thermally conductive silicone composition contains a silicone component and a polyhedral filler.
    Type: Application
    Filed: August 20, 2020
    Publication date: September 29, 2022
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Keiichi KOMATSU, Hiroshi YAMAMOTO
  • Patent number: 8441776
    Abstract: An aspect of the invention provides a solid electrolyte capacitor that comprises: an anode body; a dielectric layer formed on the surface of the anode body; a first polymer film formed on the dielectric layer and containing a first polymer; a second polymer film formed on the first polymer film and containing a second polymer that is different from the first polymer; a conducting polymer layer formed on the second polymer film and containing a conducting polymer that is different from the second polymer; and a cathode layer formed on the conducting polymer layer, wherein the first polymer film has a larger work function than that of the conducting polymer layer.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: May 14, 2013
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Keiichi Komatsu, Koichi Nishimura, Takeshi Sano
  • Publication number: 20120218682
    Abstract: A solid electrolytic capacitor including an anode, a dielectric layer formed on the anode, a polyvinyl alcohol film formed on the dielectric layer, and a conductive polymer layer formed on the polyvinyl alcohol film, wherein the polyvinyl alcohol film has a cross-linked structure.
    Type: Application
    Filed: February 23, 2012
    Publication date: August 30, 2012
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Keiichi KOMATSU, Koichi NISHIMURA, Fumio TATEZONO
  • Publication number: 20110205690
    Abstract: An aspect of the invention provides a solid electrolyte capacitor that comprises: an anode body; a dielectric layer formed on the surface of the anode body; a first polymer film formed on the dielectric layer and containing a first polymer; a second polymer film formed on the first polymer film and containing a second polymer that is different from the first polymer; a conducting polymer layer formed on the second polymer film and containing a conducting polymer that is different from the second polymer; and a cathode layer formed on the conducting polymer layer, wherein the first polymer film has a larger work function than that of the conducting polymer layer.
    Type: Application
    Filed: February 23, 2011
    Publication date: August 25, 2011
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Keiichi KOMATSU, Koichi NISHIMURA, Takeshi SANO
  • Patent number: 4992891
    Abstract: A pair of recording heads are mounted on a rotary cylinder for recording a video signal in slanted tracks on magnetic tape. The recording heads are mounted in a common plane and each has a different azimuthal angle. A pair of reading heads are mounted on the same rotary cylinder for reading the video signal recorded on the magnetic tape. The reading heads are mounted in a plane offset from the plane of the recording heads and have azimuthal angles that match the azimuthal angles of the recording heads. A mixing circuit mixes a component of the video signal ready from the magnetic tape by one of the recording heads with a video signal from a video signal source to generate a mixed video signal. The mixed video signal is returned to one of the recording heads for recordation on the magnetic tape.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: February 12, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Keiichi Komatsu, Shinji Ozaki, Shigeyuki Itoh, Hikaru Masui, Yoshizumi Watatani
  • Patent number: 4901297
    Abstract: An optical magnetic recording and reproducing apparatus and method including an optical beam scanner for scanning a recording medium with an optical beam and forming a track having a predetermined angle with respect to the traveling direction of the recording medium, a magnetic field applying arrangement for applying the magnetic field onto the recording medium, and optical beam generator for generating the optical beam.
    Type: Grant
    Filed: January 6, 1987
    Date of Patent: February 13, 1990
    Assignees: Hitachi, Ltd., Hitachi Video Engineering, Inc.
    Inventors: Keiichi Komatsu, Shinji Ozaki, Hikaru Masui, Ken Kubo
  • Patent number: 4891047
    Abstract: A process for dyeing fibers. Fibers are dyed in a dye liquor containing granules of silica gel.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: January 2, 1990
    Assignee: Director-General of the Sericultural Experiment station, Ministry of Agriculture, Forestry and Fisheries of Japan
    Inventors: Hrioshi Kato, Keiichi Komatsu
  • Patent number: 4556917
    Abstract: Disclosed is a magnetic recording/reproducing apparatus, in which a luminance signal and a carrier chrominance signal are separated from a composite color video signal, a luminance carrier signal is frequency-modulated with the luminance signal, a frequency of a subcarrier signal of the carrier chrominance signal is frequency-converted into a low band frequency so as to dispose the carrier chrominance signal in the frequency band lower than the lower side band of the luminance signal, a sound carrier signal is frequency-modulated with an aural signal, the aural signal is disposed in the frequency band between the luminance signal and the carrier chrominance signal, and the video signal and the aural signal are frequency-multiplexed and recorded. A comb line filter is inserted in a recording luminance signal processing circuit for separating the luminance signal from the composite color video signal and for processing the luminance signal.
    Type: Grant
    Filed: February 15, 1983
    Date of Patent: December 3, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Akira Shibata, Keiichi Komatsu
  • Patent number: 4524380
    Abstract: A chroma signal recording and reproducing circuit of a magnetic recording and reproducing apparatus having a recording circuit for frequency-modulating a luminance signal of a color video signal, low-frequency converting a chroma signal and frequency-multiplexing those signals for recording and a reproducing circuit for frequency-converting the low-frequency converted chroma signal in a reproduced signal and frequency-demodulating the FM luminance signal to reproduce a color video signal is disclosed. The circuit comprises a chroma signal recording circuit including a first ACC circuit and a first frequency converter connected to the first ACC circuit, and a chroma signal reproducing circuit including a second ACC circuit, a second frequency converter connected to the second ACC circuit, a comb filter connected to the second frequency converter and a deemphasis circuit connected to the output of the comb filter.
    Type: Grant
    Filed: December 7, 1982
    Date of Patent: June 18, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Akira Shibata, Keiichi Komatsu, Tomomitsu Kuroyanagi, Noboru Kojima
  • Patent number: 4497000
    Abstract: A magnetic recording/reproducing apparatus for sequentially recording each of four pilot signals of different frequencies on each video track to be multiplexed with a video signal and reproducing the video signal and the pilot signals at which time the pilot signals are separated from the video signal and used as a tracking signal to control the transport speed of the magnetic tape, wherein upon reproduction the levels of the pilot signals reproduced from the right and left adjacent video tracks are detected and one of the reproduced pilot signals from the right and left adjacent tracks is controlled in its level so that the tape travelling speed is controlled to make the center of the video head scan the same position on the track as upon recording.
    Type: Grant
    Filed: March 1, 1983
    Date of Patent: January 29, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Toshimichi Terada, Keiichi Komatsu, Akira Shibata, Kenji Satoh
  • Patent number: 4497004
    Abstract: A picture reproducing apparatus for a helical scanning video tape recorder including an impedance transformer; a video head connected to the input of the impedance transformer; a resonance circuit connected to the output of the impedance transformer; a pre-amplifier connected to the output of the resonance circuit; a feedback resistor connected between the junction of the pre-amplifier and resonance circuit and the output of the pre-amplifier; and an output terminal connected to the output of the pre-amplifier. The impedance transformer has the output impedance four times as high as the input impedance thereof.
    Type: Grant
    Filed: June 2, 1982
    Date of Patent: January 29, 1985
    Assignee: Hitachi, Ltd.
    Inventors: Akira Shibata, Makoto Konosu, Teizo Tamura, Koichi Hirose, Kuniaki Miura, Noboru Kojima, Keiichi Komatsu
  • Patent number: 4466026
    Abstract: A record/reproduce circuit for VTR comprising two normal reproducing heads with different azimuth angles, a special reproducing head with the same azimuth angle as that of the one normal reproducing head, a rotary transformer through which signals from these heads are supplied to a static circuit section, a change-over means for alternately switching a signal from the special reproducing head and a signal from the other normal reproducing head with a different azimuth angle from that of the special reproducing head, a feedback type preamplifier for amplifying the output of the change-over means, and another feedback-type preamplifier for amplifying a signal from the normal reproducing head with the same azimuth angle as that of the special reproducing head.
    Type: Grant
    Filed: February 17, 1982
    Date of Patent: August 14, 1984
    Assignee: Hitachi, Ltd.
    Inventors: Kuniaki Miura, Akira Shibata, Noboru Kojima, Keiichi Komatsu, Teizo Tamura, Makoto Konosu, Yasuji Moriyama