Patents by Inventor Yasuyuki Kondo

Yasuyuki Kondo 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).

  • Method of manufacturing a stepped magnetic head slider
    Patent number: 6405426
    Abstract: A first step portion is formed at a portion at which on an outer end portion of a facing surface of a surface of the slider meets the side panel of the slider. Furthermore, a second step portion is formed at the portion at which the outer end portion of the first step portion meets the side panel of the slider. An edge or the like due to machining occurs at an outer end portion of the second step portion. However, even if the magnetic head is steeply inclined, the outer end portion of the second step portion in which the edge or the like due to machining occurs is barely brought into contact with the recording medium because of the formation of the second step portion.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: June 18, 2002
    Assignee: Alps Electric Co., Ltd.
    Inventor: Yasuyuki Kondo
  • Dielectric filer having a decoupling aperture between coaxial resonators
    Patent number: 5208565
    Abstract: A dielectric resonator with a dielectric block. The block has a plurality of resonance apertures and coupling-prevention aperture between the adjacent resonance apertures within the block. The block is entirely coated with a conductive film except a limited portion around the one end of the resonance apertures.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: May 4, 1993
    Assignees: Fujitsu Limited, Fuji Electrochemical Co., Ltd.
    Inventors: Hiroyuki Sogo, Yasuyuki Kondo, Kazuhisa Yamazaki, Junji Konda, Shigemitsu Suzuki
  • Dielectric filter with attenuation poles
    Patent number: 5192926
    Abstract: A first dielectric block or blocks have a cut out portion and the cut out space is filled with a second dielectric block. A bypass pattern is formed on the second dielectric block and is capacitively coupled with two resonance elements formed on the first dielectric block or blocks. the dielectric filter is compact, and the position and intensity of attenuation poles can be freely designed and easily adjusted.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: March 9, 1993
    Assignees: Fujitsu Limited, Fuji Electrochemical Co., Ltd.
    Inventors: Hiroyuki Sogo, Yasuyuki Kondo, Kazuhisa Yamazaki
  • Dielectric resonator circuit
    Patent number: 5057804
    Abstract: A resonator element formed of a half or a quarter of dielectric cylinder contacts an electrically conductive plane via the resonator element's radially cut side which includes the axis of the cylinder, accordingly, resonates in TE.sub.01.delta. -mode. On an opposite side of the electrically conductive plane there is provided an unbalanced transmission line, for example, of a strip line type or a coaxial line type. An end of the transmission line is electromagnetically coupled via a dielectric material in the transmission line or directly with the radially cut side of the resonator element through an opening provided on the electrically conductive plane. Coupling circuit according to the present invention allows a compact overall circuit configuration.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: October 15, 1991
    Assignee: Fujitsu Limited
    Inventors: Hiroyuki Sogo, Hideo Ashida, Hideo Sugawara, Yasuyuki Kondo