Patents by Inventor Kazuhiko Itaya

Kazuhiko Itaya 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: 8008760
    Abstract: An integrated semiconductor device includes a plurality of semiconductor elements having different integrated element circuits or different sizes; an insulating material arranged between the semiconductor elements; an organic insulating film arranged entirely on the semiconductor elements and the insulating material; a fine thin-layer wiring that arranged on the organic insulating film and connects the semiconductor elements; a first input/output electrode arranged on an area of the insulating material; and a first bump electrode formed on the first input/output electrode.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: August 30, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroshi Yamada, Kazuhiko Itaya, Yutaka Onozuka, Hideyuki Funaki
  • Patent number: 7937056
    Abstract: A variable capacitance device has a piezoelectric driving part, a movable electrode, a fixed electrode, a dielectric film and a driving control unit. The piezoelectric driving part has a piezoelectric film, an upper electrode disposed on a top surface of the piezoelectric film, a lower electrode disposed on an undersurface of the piezoelectric film and electrode slits which separate the upper electrode and the lower electrode into two, respectively. The movable electrode is provided via the electrode slits at one end of the piezoelectric driving part. The fixed electrode is disposed opposite to the movable electrode via a gap. The dielectric film is disposed opposite to the movable electrode via the gap and provided on the fixed electrode. The driving control unit adjusts a distance between the movable electrode and the fixed electrode to reduce a fluctuation of a predetermined capacitance of a variable capacitor formed between the variable electrode and the fixed electrode.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: May 3, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuhiko Itaya, Hiroshi Yoshida, Takashi Kawakubo
  • Patent number: 7906823
    Abstract: A MEMS apparatus includes a MEMS unit formed on a semiconductor substrate and a cover provided with a pore and serving to seal the MEMS unit. The pore is sealed with a sealing material shaped in a sphere or a hemisphere.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: March 15, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuhiro Suzuki, Michihiko Nishigaki, Yutaka Onozuka, Hiroshi Yamada, Kazuhiko Itaya, Hideyuki Funaki
  • Patent number: 7893525
    Abstract: It is made possible to restrict warpage at the time of resin cure and achieve a smaller thickness. A semiconductor device includes: a first chip including a MEMS device and a first pad formed on an upper face of the MEMS device, the first pad being electrically connected to the MEMS device; a second chip including a semiconductor device and a second pad formed on an upper face of the semiconductor device, the second pad being electrically connected to the semiconductor device; and an adhesive portion having a stacked structure, and bonding a side face of the first chip and a side face of the second chip, the stacked structure including a first adhesive film formed by adding a first material constant modifier to a first resin, and a second adhesive film formed by adding a second material constant modifier to a second resin.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: February 22, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Atsuko Iida, Yutaka Onozuka, Kazuhiko Itaya
  • Patent number: 7875481
    Abstract: It is made possible to provide a highly integrated, thin apparatus can be obtained, even if the apparatus contains MEMS devices and semiconductor devices. A semiconductor apparatus includes: a first chip comprising a MEMS device formed therein; a second chip comprising a semiconductor device formed therein; and an adhesive layer bonding a side face of the first chip to a side face of the second chip, and having a lower Young's modulus than the material of the first and second chips.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: January 25, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yutaka Onozuka, Hiroshi Yamada, Hideyuki Funaki, Kazuhiko Itaya
  • Patent number: 7876105
    Abstract: A sensor device according to an embodiment of the present invention includes an electrode array having plural electrodes arranged in an array manner, a signal generator configured to generate a first signal having a first frequency, and apply the first signal to the plural electrodes, and a detection unit configured to, when the first signal is applied to the plural electrodes, and a second signal having a second frequency is applied to an object to be detected, detect a distance between each electrode included in the electrode array and the surface of the object, using an interference wave between the first signal applied to each electrode and the second signal applied to the object, or detect irregularities on the surface of the object, using a signal generated by using the interference wave outputted from one electrode and the interference wave outputted from another electrode.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: January 25, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masako Ogata, Kazuhiro Suzuki, Hideyuki Funaki, Kazuhiko Itaya
  • Patent number: 7851833
    Abstract: A semiconductor device includes a first transistor unit including first field effect transistors with first gate electrodes electrically connected together, first sources electrically connected together, and first drains electrically connected together, the first gate electrodes being electrically connected to the first drains, a second transistor unit including second field effect transistors with second gate electrodes electrically connected together, second sources electrically connected together, and second drains electrically connected together, the second gate electrodes being electrically connected to the first gate electrodes, and dummy gate electrodes electrically isolated from the first gate electrodes and the second gate electrodes. The first gate electrodes, the second gate electrodes, and the dummy gate electrodes are arranged parallel to one another, and at least one dummy gate electrode is located between any one of the first gate electrodes and any one of the second gate electrodes.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: December 14, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuhide Abe, Tadahiro Sasaki, Kazuhiko Itaya
  • Patent number: 7830068
    Abstract: An actuator includes a first beam, a first fixed part, a second beam, a first connective part, and a first fixed electrode. The first beam extends from a first fixed end to a first connective end, and the first fixed part connects the first fixed end and the substrate and supports the first beam above a main surface of the substrate with a gap. The second beam extends from a second connective end to a first action end and is provided in parallel to the first beam, and has a first division part divided by a first slit extending from the first action end toward the second connective end. The first connective part connects the first connective end and the second connective end and holds the second beam above the main surface of the substrate with a gap. The first fixed electrode is provided on the main surface of the substrate being configured to be opposed to a part of the first division part on a side of the first action end.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: November 9, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Michihiko Nishigaki, Toshihiko Nagano, Kazuhiko Itaya, Takashi Kawakubo
  • Patent number: 7812620
    Abstract: A sensor device for detecting a positional relationship between a first member and a second member, includes a first electrode provided on a surface of the first member and supplied with an alternating signal of a first frequency, a second electrode provided on a surface of the second member and supplied with an alternating signal of a second frequency, and a beat detector which detects a beat frequency component corresponding to a difference between the first and second frequencies indicative of the positional relationship between the first member and the second member, when the positional relationship between the first and second members changes to cause the first electrode to approach the second electrode.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: October 12, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masako Ogata, Kazuhiro Suzuki, Hideyuki Funaki, Kazuhiko Itaya
  • Patent number: 7777592
    Abstract: An antenna sharing device has a common signal terminal pair, a first terminal pair, a second terminal pair, a first filter, a second filter, a first inductor element, second inductor elements, third inductor elements. The second and third inductor elements have a plurality of inductor elements, respectively. An inductor element closest to the first terminal pair among the inductor elements included in the second inductor elements and an inductor element closest to the second terminal pair among the third inductor elements are arranged further away from the first inductor element than the other inductor elements included in the second and third inductor elements, or formed on a substrate different from a substrate on which the first inductor element is formed, or formed opposite to the first inductor element by sandwiching a shielding pattern.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: August 17, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Michihiko Nishigaki, Ryoichi Ohara, Minoru Kawase, Kazuhiko Itaya
  • Patent number: 7770274
    Abstract: A piezoelectric thin film device includes an amorphous metal film disposed on a substrate and a piezoelectric film disposed on the amorphous metal. One of crystal axis of the piezoelectric film is aligned in a direction perpendicular to a surface of the amorphous metal.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: August 10, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenya Sano, Ryoichi Ohara, Naoko Yanase, Takaaki Yasumoto, Kazuhiko Itaya, Takashi Kawakubo, Hiroshi Toyoda, Masahiko Hasunuma, Toshihiko Nagano, Kazuhide Abe, Michihiko Nishigaki, Hironobu Shibata
  • Patent number: 7732990
    Abstract: A MEMS device includes: a first actuator having a first fixed end, including a stacked structure of a first lower electrode, a first piezoelectric film, and a first upper electrode, and being able to be operated by applying voltages to the first lower electrode and the first upper electrode; a second actuator having a second fixed end, being disposed in parallel with the first actuator, including a stacked structure of a second lower electrode, a second piezoelectric film, and a second upper electrode, and being able to be operated by applying voltages to the second lower electrode and the second upper electrode; and an electric circuit element having a first action part connected to the first actuator and a second action part connected to the second actuator.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: June 8, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Michihiko Nishigaki, Toshihiko Nagano, Takashi Miyazaki, Kazuhiko Itaya, Takashi Kawakubo
  • Patent number: 7709999
    Abstract: A thin film piezoelectric resonator includes a substrate having a cavity; a first electrode extending over the cavity; a piezoelectric film placed on the first electrode; and a second electrode placed on the piezoelectric film, the second electrode having a periphery partially overlapping on the cavity and tapered to have an inner angle of 30 degrees or smaller defined by a part of the periphery thereof and a bottom thereof.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: May 4, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuhiko Itaya, Ryoichi Ohara, Kenya Sano, Takaaki Yasumoto, Naoko Yanase
  • Patent number: 7705611
    Abstract: A sensor device for detecting a positional relationship between a first member and a second member, includes a first charge-holding electrode provided on a surface of the first member and holding a charge, a second charge-holding electrode provided on the surface of the first member and holding a charge differing from the charge held by the first charge-holding electrode, a first charge-induced electrode provided on a surface of the second member, the first charge-induced electrode having a charge induced therein in accordance with the charge held by the first charge-holding electrode, when the first charge-holding electrode approaches the first charge-induced electrode, a second charge-induced electrode provided on the surface of the second member, the second charge-induced electrode having a charge induced therein in accordance with the charge held by the second charge-holding electrode, when the second charge-holding electrode approaches the second charge-induced electrode.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: April 27, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masako Ogata, Kazuhiro Suzuki, Hideyuki Funaki, Kazuhiko Itaya
  • Publication number: 20100026319
    Abstract: A sensor device for detecting a positional relationship between a first member and a second member, includes a first electrode provided on a surface of the first member and supplied with an alternating signal of a first frequency, a second electrode provided on a surface of the second member and supplied with an alternating signal of a second frequency, and a beat detector which detects a beat frequency component corresponding to a difference between the first and second frequencies indicative of the positional relationship between the first member and the second member, when the positional relationship between the first and second members changes to cause the first electrode to approach the second electrode.
    Type: Application
    Filed: October 13, 2009
    Publication date: February 4, 2010
    Inventors: Masako Ogata, Kazuhiro Suzuki, Hideyuki Funaki, Kazuhiko Itaya
  • Publication number: 20090296308
    Abstract: A MEMS variable capacitor includes: a first connection beam having one end fixed to a substrate; a first actuation beam connected to the first connection beam; a second actuation beam connected to the first actuation beam and extending in a reverse direction; a second connection beam having one end fixed to the substrate; a third actuation beam connected to the second connection beam; a fourth actuation beam connected to the third actuation beam and extending in a reverse direction; a movable electrode provided between the second and fourth actuation beams; and a fixed electrode provided on the substrate opposed to the movable electrode. The first to fourth actuation beams have a piezoelectric film sandwiched between a lower electrode and an upper electrode, the first and third actuation beams are placed on a line, the second and fourth actuation beams are placed on a line, and the first and second actuation beams and the third and fourth actuation beams are placed symmetrically about a line.
    Type: Application
    Filed: March 10, 2009
    Publication date: December 3, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi Kawakubo, Toshihiko Nagano, Michihiko Nishigaki, Kazuhiko Itaya
  • Patent number: 7619470
    Abstract: A power amplifier includes: a plurality of field effect transistors connected in parallel and each having a first and second ends, the first end being connected to ground; an amplifying unit which includes at least one of an inductor, a capacitor and a band pass filter and has a third and fourth ends, the third end being connected to the second ends of the field effect transistors, and the fourth end outputting an amplified output signal; and an amplitude controller which sends control signals respectively to gates of the field effect transistors to turn on or off the field effect transistors based on an address signal for performing selection on the field effect transistors and a clock signal. Channel widths of the field effect transistors are different from each other.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: November 17, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuhide Abe, Tadahiro Sasaki, Kazuhiko Itaya, Hideyuki Funaki
  • Publication number: 20090243725
    Abstract: A semiconductor device includes a first transistor unit including first field effect transistors with first gate electrodes electrically connected together, first sources electrically connected together, and first drains electrically connected together, the first gate electrodes being electrically connected to the first drains, a second transistor unit including second field effect transistors with second gate electrodes electrically connected together, second sources electrically connected together, and second drains electrically connected together, the second gate electrodes being electrically connected to the first gate electrodes, and dummy gate electrodes electrically isolated from the first gate electrodes and the second gate electrodes. The first gate electrodes, the second gate electrodes, and the dummy gate electrodes are arranged parallel to one another, and at least one dummy gate electrode is located between any one of the first gate electrodes and any one of the second gate electrodes.
    Type: Application
    Filed: March 24, 2009
    Publication date: October 1, 2009
    Inventors: Kazuhide ABE, Tadahiro Sasaki, Kazuhiko Itaya
  • Patent number: 7583149
    Abstract: A power supply apparatus which supplies power to an amplifier, includes: a regulator stabilizing a voltage of the power supplied to the amplifier; and a stabilizing controller obtaining an amplitude level of an input signal inputted to the amplifier and controlling a stability of the voltage by the regulator based on the amplitude level.
    Type: Grant
    Filed: February 23, 2007
    Date of Patent: September 1, 2009
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideyuki Funaki, Kazuhiko Itaya
  • Publication number: 20090206444
    Abstract: An integrated semiconductor device includes a plurality of semiconductor elements having different integrated element circuits or different sizes; an insulating material arranged between the semiconductor elements; an organic insulating film arranged entirely on the semiconductor elements and the insulating material; a fine thin-layer wiring that arranged on the organic insulating film and connects the semiconductor elements; a first input/output electrode arranged on an area of the insulating material; and a first bump electrode formed on the first input/output electrode.
    Type: Application
    Filed: February 13, 2009
    Publication date: August 20, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroshi YAMADA, Kazuhiko ITAYA, Yutaka ONOZUKA, Hideyuki FUNAKI