Patents by Inventor Takeo Shirai

Takeo Shirai 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: 8710735
    Abstract: The organic electroluminescent device includes: a first electrode of conductive and light transmissive material; a light emitting layer of organic material on the first electrode; a second electrode of conductive material on the layer; first and second terminal parts placed on first and second ends of the layer in a first direction crossing a thickness direction of the layer and coupled to the first and second electrodes, respectively; and an auxiliary electrode which is on the first electrode and beside the layer in a second direction crossing the thickness direction and the first direction and coupled to the first electrode, and has an elongated shape extending in the first direction, and made of material having specific resistance smaller than the first electrode, and includes portions with different thicknesses such that sheet resistance is increased with an increase in distance from the first terminal part in a lengthwise direction thereof.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: April 29, 2014
    Assignee: Panasonic Corporation
    Inventors: Takeo Shirai, Yoshiharu Nakamura, Hitomichi Takano
  • Publication number: 20130320841
    Abstract: The organic electroluminescent device includes: a first electrode of conductive and light transmissive material; a light emitting layer of organic material on the first electrode; a second electrode of conductive material on the layer; first and second terminal parts placed on first and second ends of the layer in a first direction crossing a thickness direction of the layer and coupled to the first and second electrodes, respectively; and an auxiliary electrode which is on the first electrode and beside the layer in a second direction crossing the thickness direction and the first direction and coupled to the first electrode, and has an elongated shape extending in the first direction, and made of material having specific resistance smaller than the first electrode, and includes portions with different thicknesses such that sheet resistance is increased with an increase in distance from the first terminal part in a lengthwise direction thereof.
    Type: Application
    Filed: February 10, 2012
    Publication date: December 5, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Takeo Shirai, Yoshiharu Nakamura, Hitomichi Takano
  • Patent number: 8390173
    Abstract: The MEMS switch comprises a substrate with signal-lines having fixed-contacts, a movable-plate with a movable-contact, a flexible support-member supporting the movable-plate, a static-actuator and a piezoelectric-actuator configured to contact the movable-contact with the fixed-contact. The movable-contact is provided at its longitudinal center with the movable-contact, and its both the longitudinal ends with static-movable-electrode-plate. The support-member is four strips disposed on portions outside of the both width ends of the movable plate. The strip extends along the longitudinal direction of the movable plate, provided with a first end fixed to the movable plate, and provided with a second end fixed to the substrate. The piezoelectric-element is disposed on an upper surface of the strip to be located at a portion outside of the width ends of the movable-plate.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: March 5, 2013
    Assignee: Panasonic Corporation
    Inventors: Takaaki Yoshihara, Yoshiki Hayasaki, Takeo Shirai, Tomoaki Matsushima, Hiroshi Kawada, Yousuke Hagihara
  • Patent number: 8098118
    Abstract: A bandpass filter includes a combination of a BAW filter and a patterned planar filter with stubs. The BAW filter is composed of a plurality of piezoelectric resonators to give a specific frequency bandpass, while the planer filter is configured to attenuate frequencies near and outside the bandpass. The resonators are connected in a ladder configuration between a first signal transmission path and a ground. The planar filter includes a strip line formed on a dielectric layer to define a second signal transmission path. The BAW filter and the planar filter are formed on a common substrate with the first and second transmission paths connected to each other. The BAW filter, in combination with the patterned planar filter added with the stub, can improve a deep near-band rejection inherent to the BAW filter, exhibiting an excellent out-of-band rejection over certain adjacent frequency ranges outside of the bandpass, and therefore give a sharp and wide bandpass.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: January 17, 2012
    Assignee: Panasonic Electric Works Co., Ltd.
    Inventors: Atsushi Suwa, Koji Sasabe, Futoshi Nishimura, Yoshiki Hayasaki, Tomoaki Matsushima, Sibei Xiong, Takaaki Yoshihara, Norihiro Yamauchi, Takeo Shirai
  • Publication number: 20110024274
    Abstract: The MEMS switch comprises a substrate with signal-lines having fixed-contacts, a movable-plate with a movable-contact, a flexible support-member supporting the movable-plate, a static-actuator and a piezoelectric-actuator configured to contact the movable-contact with the fixed-contact. The movable-contact is provided at its longitudinal center with the movable-contact, and its both the longitudinal ends with static-movable-electrode-plate. The support-member is four strips disposed on portions outside of the both width ends of the movable plate. The strip extends along the longitudinal direction of the movable plate, provided with a first end fixed to the movable plate, and provided with a second end fixed to the substrate. The piezoelectric-element is disposed on an upper surface of the strip to be located at a portion outside of the width ends of the movable-plate.
    Type: Application
    Filed: March 30, 2009
    Publication date: February 3, 2011
    Inventors: Takaaki Yoshihara, Yoshiki Hayasaki, Takeo Shirai, Tomoaki Matsushima, Hiroshi Kawada, Yousuke Hagihara
  • Publication number: 20100117763
    Abstract: A bandpass filter includes a combination of a BAW filter and a patterned planar filter with stubs. The BAW filter is composed of a plurality of piezoelectric resonators to give a specific frequency bandpass, while the planer filter is configured to attenuate frequencies near and outside the bandpass. The resonators are connected in a ladder configuration between a first signal transmission path and a ground. The planar filter includes a strip line formed on a dielectric layer to define a second signal transmission path. The BAW filter and the planar filter are formed on a common substrate with the first and second transmission paths connected to each other. The BAW filter, in combination with the patterned planar filter added with the stub, can improve a deep near-band rejection inherent to the BAW filter, exhibiting an excellent out-of-band rejection over certain adjacent frequency ranges outside of the bandpass, and therefore give a sharp and wide bandpass.
    Type: Application
    Filed: February 19, 2008
    Publication date: May 13, 2010
    Inventors: Atsushi Suwa, Koji Sasabe, Futoshi Nishimura, Yoshiki Hayasaki, Tomoaki Matsushima, Sibei Xiong, Takaaki Yoshihara, Norihiro Yamauchi, Takeo Shirai
  • Patent number: D684124
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: June 11, 2013
    Assignee: Panasonic Corporation
    Inventors: Yuko Matsuhisa, Takao Miyai, Hiroyuki Sasaki, Koki Fujihara, Takeo Shirai, Shingo Houzumi
  • Patent number: D688637
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: August 27, 2013
    Assignee: Panasonic Corporation
    Inventors: Yuko Matsuhisa, Takao Miyai, Hiroyuki Sasaki, Koki Fujihara, Takeo Shirai, Shingo Houzumi
  • Patent number: D694200
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: November 26, 2013
    Assignee: Panasonic Corporation
    Inventors: Yuko Matsuhisa, Takao Miyai, Hiroyuki Sasaki, Koki Fujihara, Takeo Shirai, Shingo Houzumi
  • Patent number: D690277
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: September 24, 2013
    Assignee: Panasonic Corporation
    Inventors: Yuko Matsuhisa, Takao Miyai, Hiroyuki Sasaki, Koki Fujihara, Takeo Shirai, Shingo Houzumi