Patents by Inventor Masanori Ueda

Masanori Ueda 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).

  • INFORMATION STORAGE APPARATUS
    Publication number: 20090002880
    Abstract: An information storage apparatus includes: at least one information storage medium each of which is in a disk-like shape, rotates being fixed to a common rotating shaft and in which information is recorded; a head which accesses the information storage medium by approaching or touching the information storage medium; an arm which extends along a surface of the storage information medium, holds the head at an end of the arm, and swings around a pivot shaft disposed at a root of the arm; and a spoiler which rectifies airflow on the information storage medium and includes a metal airflow control plate and a resin bracket which holds the airflow control plate at a predetermined position along the surface of the information storage medium.
    Type: Application
    Filed: May 1, 2008
    Publication date: January 1, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Masanori Ueda, Haruyuki Matsunaga
  • Elastic boundary wave device, resonator, and filter
    Patent number: 7471171
    Abstract: An elastic boundary wave device includes a LiNbO3 substrate, an electrode exciting an elastic wave and provided on the substrate, and a silicon oxide film provided on the substrate to cover the electrode, and parameters of the elastic boundary wave device have any one of ranges, where “?” is a rotation Y cut angle of the substrate, “a” is a ratio of copper density with respect to a density of a material used as the electrode, “?” is a wavelength of the elastic wave excited by the electrode, “h” is a film thickness of the electrode, “H” is a thickness of the silicon oxide film.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: December 30, 2008
    Assignees: Fujitsu Media Devices Limited, Fujitsu Limited
    Inventors: Michio Miura, Satoru Matsuda, Takashi Matsuda, Masanori Ueda, Seiichi Mitobe
  • Acoustic boundary wave device, resonator and filter
    Patent number: 7466061
    Abstract: An acoustic boundary wave device includes a first medium having piezoelectricity, electrodes that are provided on the first medium and excite acoustic waves, a second medium made of a material different from the first medium and provided on the first medium so as to cover the electrodes, and a third medium that has a heat conductivity higher than that of the second medium and is provided so as to contact an upper surface of the second medium and at least a part of side surfaces of the second medium.
    Type: Grant
    Filed: June 5, 2007
    Date of Patent: December 16, 2008
    Assignees: Fujitsu Limited, Fujitsu Media Devices Limited
    Inventors: Michio Miura, Satoru Matsuda, Takashi Matsuda, Masanori Ueda, Seiichi Mitobe
  • Acoustic wave filter and acoustic wave duplexer
    Patent number: 7459992
    Abstract: An acoustic wave filter includes: a ladder filter that has acoustic wave resonators connected in series and parallel arms; an inductor that is provided between a ground and at least one of the parallel-arm resonators in the ladder filter; and a resonance circuit that is provided in parallel with the inductor, and is located between the ground and the parallel-arm resonators in the ladder filter. In this acoustic wave filter, the resonance frequency of the resonance circuit is expressed as: 2f0?150 MHz<fr<2f0+150 MHz or 3f0?150 MHz<fr<3f0+150 MHz, where fr represents the resonance frequency, and f0 represents the passband frequency of the ladder filter.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: December 2, 2008
    Assignees: Fujitsu Media Devices Limited, Fujitsu Limited
    Inventors: Satoru Matsuda, Shogo Inoue, Takashi Matsuda, Masanori Ueda
  • PIEZOELECTRIC THIN-FILM RESONATOR AND FILTER
    Publication number: 20080284543
    Abstract: A piezoelectric thin-film resonator includes: a lower electrode that is formed on a substrate; a piezoelectric film that is formed on the substrate and the lower electrode; an upper electrode that is formed on the piezoelectric film, with a portion of the piezoelectric film being interposed between the lower electrode and the upper electrode facing each other; and an additional film that is formed on the substrate on at least a part of the outer periphery of the lower electrode at the portion at which the lower electrode and the upper electrode face each other, with the additional film being laid along the lower electrode.
    Type: Application
    Filed: May 16, 2008
    Publication date: November 20, 2008
    Applicants: FUJITSU MEDIA DEVICES LIMITED, FUJITSU LIMITED
    Inventors: Shinji Taniguchi, Tokihiro Nishihara, Tsuyoshi Yokoyama, Masafumi Iwaki, Motoaki Hara, Go Endo, Yasuyuki Saitou, Masanori Ueda
  • ANTENNA DUPLEXER
    Publication number: 20080284540
    Abstract: An antenna duplexer is provided, which can be built with a smaller size and lower height than ever without compromising out-of-band attenuation characteristic and isolation characteristic between a transmit terminal and a receive terminal. The antenna duplexer includes a transmit filter provided between an antenna terminal and the transmit terminal, and a receive filter provided between the antenna terminal and the receive terminal. The filters are enclosed by a package, in which a ground pattern for the receive filter is separated from other ground patterns.
    Type: Application
    Filed: April 21, 2008
    Publication date: November 20, 2008
    Applicants: FUJITSU LIMITED, FUJITSU MEDIA DEVICES LIMITED
    Inventors: Tokihiro NISHIHARA, Masafumi Iwaki, Shinji Taniguchi, Masanori Ueda, Go Endo, Koichi Hatano
  • Piezoelectric thin-film resonator and filter and fabricating method
    Patent number: 7432631
    Abstract: A piezoelectric thin-film resonator includes a device substrate and a laminated body provided on the device substrate and composed of a lower electrode, an upper electrode and a piezoelectric film sandwiched between the lower and upper electrodes. The laminated body has a membrane portion in which the upper and lower electrodes overlap with each other through the piezoelectric film, and a gap has a dome shape being formed between the device substrate and the lower electrode and located below the membrane portion.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: October 7, 2008
    Assignees: Fujitsu Media Devices Limited, Fujitsu Limited
    Inventors: Shinji Taniguchi, Tokihiro Nishihara, Takeshi Sakashita, Tsuyoshi Yokoyama, Masafumi Iwaki, Masanori Ueda, Tsutomu Miyashita
  • Surface acoustic wave device
    Patent number: 7423365
    Abstract: A surface acoustic wave device includes at least one interdigital transducer having electrodes of a double-layered structure in which an upper film and an underlying film are laminated. The upper film has a main component of Al and a first metal of Ti added to the main component. The underlying film has a main component of Ti.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: September 9, 2008
    Assignees: Fujitsu Media Devices Limited, Fujitsu Limited
    Inventors: Jun Tsutsumi, Shogo Inoue, Masanori Ueda
  • Ceramic Heater and Method for Manufacturing the Same
    Publication number: 20080210684
    Abstract: A ceramic heater is provided that has a heat generating resistor and a lead member which supplies electric power to the heat generating resistor buried in a ceramic body, and exhibits excellent durability by controlling the cross sectional shape and plan configuration of the heat generating resistor.
    Type: Application
    Filed: December 22, 2004
    Publication date: September 4, 2008
    Inventors: Hiroshi Kukino, Hideaki Yoshidome, Satoshi Tanaka, Makoto Mido, Masanori Ueda
  • PIEZOELECTRIC THIN-FILM RESONATOR, ACOUSTIC WAVE DEVICE AND METHOD FOR FABRICATING THE ACOUSTIC WAVE DEVICE
    Publication number: 20080169885
    Abstract: A piezoelectric thin-film resonator includes: a lower electrode provided on a substrate; a piezoelectric film provided on the lower electrode; an upper electrode provided on the piezoelectric film so as to face the lower electrode across the piezoelectric film to thus define a resonance portion; and a weight load film provided on the upper electrode, the weight load film being provided in the resonance portion and having an area smaller than that of the resonance portion.
    Type: Application
    Filed: January 10, 2008
    Publication date: July 17, 2008
    Applicants: FUJITSU MEDIA DEVICES LIMITED, FUJITSU LIMITED
    Inventors: Masanori Ueda, Tokihiro Nishihara, Shinji Taniguchi, Tsuyoshi Yokoyama, Go Endo, Yasuyuki Saitou
  • Film bulk acoustic resonator and filter
    Publication number: 20080150653
    Abstract: A film bulk acoustic resonator includes a lower electrode that is formed on a void of a substrate or is formed so that a void is formed between the lower electrode and the substrate, a piezoelectric film that is formed on the lower electrode, an upper electrode that is formed on the piezoelectric film so as to have a resonance region facing the lower electrode through the piezoelectric film, a support region that is provided around the resonance region, has a width of 0.35 times to 0.65 times a wavelength of a wave propagating in a lateral direction, and transmits the wave passes, and an adjacent region that is provided around the support region and blocks the wave.
    Type: Application
    Filed: December 14, 2007
    Publication date: June 26, 2008
    Inventors: Motoaki Hara, Tokihiro Nishihara, Masanori Ueda, Go Endo
  • Spacer, manufacturing method of the spacer, disc drive having the storage
    Publication number: 20080151423
    Abstract: A spacer is to be attached to a hub that rotates plural disc in a disc drive, configured to space two adjacent discs, and has an annular shape and an internal surface that opposes to the hub. The spacer includes three projections on the internal surface.
    Type: Application
    Filed: September 19, 2007
    Publication date: June 26, 2008
    Applicant: FUJITSU LIMITED
    Inventor: Masanori Ueda
  • Piezoelectric thin-film resonator and filter using the same
    Publication number: 20080143215
    Abstract: A piezoelectric thin-film resonator includes: a lower electrode supported by a substrate, a space being defined below the lower electrode; a piezoelectric film provided on the lower electrode and the substrate; and an upper electrode provided on the piezoelectric film so as to form a resonance portion in which the upper electrode faces the lower electrode across the piezoelectric film. At least one of the lower electrode and the upper electrode has an interconnection portion used to extract a signal from the resonance portion and located above the space. The at least one of the lower electrode and the upper electrode has a first mass per unit area in which the at least one of the lower electrode and the upper electrode contacts the piezoelectric film and a second mass per unit area in the resonance portion. The first mass per unit area is smaller than the second mass per unit area.
    Type: Application
    Filed: October 25, 2007
    Publication date: June 19, 2008
    Inventors: Motoaki Hara, Tokihiro Nishihara, Masanori Ueda, Go Endo
  • MAGNETIC DISC DRIVE
    Publication number: 20080137228
    Abstract: A magnetic disc drive includes a head that is configured to record information in a recording medium or reproduce the information from the recording medium, a housing that houses the recording medium and the head, and a vibration damping mechanism that reduces a vibration of the housing, and includes a weight attached to the housing and a deformation reducer that reduces a deformation of the housing caused by the weight.
    Type: Application
    Filed: February 20, 2008
    Publication date: June 12, 2008
    Applicant: FUJITSU LIMITED
    Inventors: Masanori Ueda, Haruyuki Matsunaga
  • Ladder type filter
    Publication number: 20080129417
    Abstract: A ladder filter includes a series resonator having a first film laminate in which an upper electrode and a lower electrode face each other across a piezoelectric film, and a first film provided on the first film laminate, and a parallel resonator having a second film laminate having a structure similar to that of the first film laminate, a second film provided on the second film laminate, and another first film identical to the first film.
    Type: Application
    Filed: October 16, 2007
    Publication date: June 5, 2008
    Inventors: Shinji Taniguchi, Tokihiro Nishihara, Tsuyoshi Yokoyama, Masafumi Iwaki, Go Endo, Yasuyuki Saitou, Hisanori Ehara, Masanori Ueda
  • Acoustic wave device and filter using the same
    Publication number: 20080129418
    Abstract: An acoustic wave device includes a piezoelectric substrate, a resonator having comb electrodes that are provided above the piezoelectric substrate and excite an acoustic wave, and a capacitor that is provided above the piezoelectric substrate and is connected in series or parallel with the resonator, the capacitor including electrodes that horizontally face each other above the piezoelectric substrate. The electrodes of the capacitor are further from the piezoelectric substrate than the comb electrodes of the resonator.
    Type: Application
    Filed: October 24, 2007
    Publication date: June 5, 2008
    Inventors: Michio Miura, Satoru Matsuda, Shogo Inoue, Takashi Matsuda, Masanori Ueda, Seiichi Mitobe
  • Piezoelectric thin-film resonator and filter having the same
    Patent number: 7368859
    Abstract: A piezoelectric thin-film resonator includes a lower electrode provided on a substrate, a piezoelectric thin film provided on the lower electrode, and an upper electrode provided on the piezoelectric thin film. A membrane region is defined by a region where the upper electrode and the lower electrode overlap each other to sandwich the piezoelectric thin film therebetween and has an elliptical shape, and the lower electrode is also provided at an outer side of the membrane region in a region in which neither an extraction electrode of the upper electrode nor an extraction electrode of the lower electrode is provided.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: May 6, 2008
    Assignees: Fujitsu Media Devices Limited, Fujitsu Limited
    Inventors: Tsuyoshi Yokoyama, Tokihiro Nishihara, Shinji Taniguchi, Takeshi Sakashita, Jun Tsutsumi, Masafumi Iwaki, Masanori Ueda
  • Acoustic wave device, resonator and filter
    Publication number: 20080074212
    Abstract: A filter includes a parallel resonator having first comb electrodes provided on a piezoelectric substrate and a first dielectric film that covers the first comb electrodes, and a series resonator having second comb electrodes provided on the piezoelectric substrate and a second dielectric film covers the second comb electrodes and is made of a material identical to that of the first dielectric film. The first dielectric film has a different thickness from that of the second dielectric film.
    Type: Application
    Filed: September 25, 2007
    Publication date: March 27, 2008
    Inventors: Satoru Matsuda, Michio Miura, Shogo Inoue, Takashi Matsuda, Masanori Ueda, Seiichi Mitobe
  • Acoustic wave device and filter
    Publication number: 20080067891
    Abstract: An acoustic wave device includes a piezoelectric substrate, a first dielectric film formed on the piezoelectric substrate, and electrodes that are provided on the first dielectric film and excite an acoustic wave, the electrodes including electrode fingers. At least a part of the first dielectric film is cut out between adjacent electrode fingers among the electrode fingers.
    Type: Application
    Filed: September 19, 2007
    Publication date: March 20, 2008
    Inventors: Takashi Matsuda, Shogo Inoue, Michio Miura, Satoru Matsuda, Masanori Ueda, Seiichi Mitobe
  • Acoustic wave device, resonator and filter
    Publication number: 20080067896
    Abstract: An acoustic wave device includes a piezoelectric substrate, comb electrodes formed above the piezoelectric substrate, and a first dielectric film provided so as to cover the comb electrodes, the first dielectric film having empty spaces associated with fingers of the comb electrodes.
    Type: Application
    Filed: September 12, 2007
    Publication date: March 20, 2008
    Inventors: Shogo Inoue, Hiroyoshi Yasuda, Michio Miura, Satoru Matsuda, Takashi Matsuda, Masanori Ueda, Seiichi Mitobe