Patents by Inventor Eiji Fujii

Eiji Fujii 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: 8927855
    Abstract: A solar cell comprises an n-type semiconductor layer, a p-type semiconductor layer, a p-side electrode layer, an n-side electrode; and a ZnO transparent electrode layer. The n-side electrode layer consists of AgxAu1-x, and x represents a value of not less than 0.1 and not more than 0.5. The ZnO transparent electrode layer is composed of a plurality of ZnO columnar particles and each ZnO columnar particle has a longitudinal direction substantially parallel to a normal line of the ZnO transparent electrode layer. The cross-sectional area of each ZnO columnar particles that appears by cutting the ZnO columnar particles perpendicularly to the longitudinal direction increases from the upper surface of the n-side electrode layer to the upper surface of the ZnO transparent electrode layer.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: January 6, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tomoyuki Komori, Eiji Fujii, Akihiro Itoh
  • Publication number: 20140290599
    Abstract: An active grille shutter controls opening and closing of a variable duct device which uses movable louvers to open and close an opening provided at the front end of a vehicle to introduce moving air. The active grille shutter includes: thermal load state detection units each configured to detect a thermal load state of the vehicle; and an opening and closing control unit configured to set the variable duct device in a closed state in a normal condition, and to set the variable duct device in an open state when it is determined that the thermal load state of the vehicle is a predetermined high thermal load state.
    Type: Application
    Filed: March 26, 2014
    Publication date: October 2, 2014
    Applicant: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Keishi Numata, Seiji Kawaguchi, Gentaro Hatanaka, Kazuhiro Hayakawa, Eiji Fujii, Hirotake Nishina, Shinji Fukushima
  • Publication number: 20140199930
    Abstract: A base panel member 22 is provided with openings 24. A back panel member 26 having projections 28 that can be inserted into the openings 24. Springs 38 bias the projections 28 against the openings 24. Shape-memory members 40 are disposed in the vicinity of the springs 38. The projections 28 are inserted into the openings 24 by a biasing force of the springs 38, so that airflow through the openings 24 is prohibited. The shape-memory members 40 change shape according to temperature changes, and produce a force against the biasing force. This allows the projections 28 to be separated from the openings 24, creating an airflow state in which the air can pass through the openings 24. A design is formed by combining the base panel member 22 and the projections 28, while the projections 28 are inserted into the openings 24.
    Type: Application
    Filed: June 19, 2012
    Publication date: July 17, 2014
    Applicants: National University Corporation Nagoya University, AMS Co., Ltd.
    Inventors: Harunobu Toda, Kunishige Okai, Yoshihiro Watanabe, Yukiharu Yoshimi, Tadashige Ikeda, Eiji Fujii
  • Patent number: 8727506
    Abstract: The purpose of the present invention is to provide an ink jet head capable of ejecting an exact amount of ink, an angular velocity sensor capable of measuring an exact angular velocity, and a piezoelectric generating element capable of generating an electric power due to positive piezoelectric effect, even when the applied electric field of 40 kV/cm or more is applied. The piezoelectric film used for the present invention comprises a piezoelectric layer and first and second electrodes which sandwich the piezoelectric layer therebetween, the first electrode comprises a (001) orientation, the piezoelectric layer is composed of (1-z)(NaxBiy)TiO0.5x+1.5y+2-zBaTiO3 having a (001) orientation, x is not less than 0.30 and not more than 0.46, y is not less than 0.51 and not more than 0.62, and z is not less than 0.07 and not more than 0.09.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: May 20, 2014
    Assignee: Panasonic Corporation
    Inventors: Takakiyo Harigai, Yoshiaki Tanaka, Hideaki Adachi, Eiji Fujii
  • Patent number: 8678476
    Abstract: A shock absorber assembly includes a shock absorber, a utility part, and a flexible member. The shock absorber is provided to a vehicular interior part that is mounted on a compartment inner side of a body panel, and the shock absorber includes a mounting portion that is mounted to a compartment outer side surface of the vehicular interior part. The utility part is provided to the vehicular interior part. The flexible member covers a peripheral surface of the shock absorber, and a part of the flexible member is held by the vehicular interior part and the utility part to support and mount the shock absorber to the vehicular interior part.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: March 25, 2014
    Assignees: Toyota Boshoku Kabushiki Kaisha, Hayashi Telempu Co., Ltd.
    Inventors: Fumitaka Hirose, Yoshiaki Maesoba, Kazumi Kojima, Eiji Fujii, Isao Yamanaka, Hiroyuki Ishida
  • Publication number: 20140053900
    Abstract: A solar cell element comprising a p-side electrode; a p-type group III-group V compound semiconductor layer; an n-type group III-group V compound semiconductor layer; an n-side group III-group V compound electrode layer; and a VxZn1-x layer. The p-side electrode is electrically connected to the p-type group III-group V compound semiconductor layer. The p-type group III-group V compound semiconductor layer, the n-type group III-group V compound semiconductor layer, the n-side group III-group V compound electrode layer, and the VxZn1-x layer are stacked in this order. The VxZn1-x layer is in contact with the n-side group III-group V compound electrode layer; x represents a value of not less than 0.3 and not more than 0.99; and the VxZn1-x layer has a thickness of not less than 1 nanometer and not more than 5 nanometers.
    Type: Application
    Filed: October 31, 2013
    Publication date: February 27, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Tomoyuki KOMORI, Eiji FUJII, Tetsuya ASANO
  • Publication number: 20140041723
    Abstract: A solar cell comprises an n-type semiconductor layer, a p-type semiconductor layer, a p-side electrode layer, an n-side electrode; and a ZnO transparent electrode layer. The n-side electrode layer consists of AgxAu1-x, and x represents a value of not less than 0.1 and not more than 0.5. The ZnO transparent electrode layer is composed of a plurality of ZnO columnar particles and each ZnO columnar particle has a longitudinal direction substantially parallel to a normal line of the ZnO transparent electrode layer. The cross-sectional area of each ZnO columnar particles that appears by cutting the ZnO columnar particles perpendicularly to the longitudinal direction increases from the upper surface of the n-side electrode layer to the upper surface of the ZnO transparent electrode layer.
    Type: Application
    Filed: October 17, 2013
    Publication date: February 13, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Tomoyuki KOMORI, Eiji FUJII, Akihiro ITOH
  • Publication number: 20140036004
    Abstract: In order to provide a non-lead piezoelectric film having high crystalline orientation, low dielectric loss, high polarization-disappear temperature, and high piezoelectric constant, the present invention is a piezoelectric film comprising: a NaxM1-x layer 13 having a (001) orientation only; and a (1-?) (Bi, Na, Ba) TiO3-?BiQO3 layer 15 having a (001) orientation only. The (1-?) (Bi, Na, Ba) TiO3-?BiQO3 layer 15 is formed on the NaxM1-x layer 13. M represents Pt, Ir, or PtIr. Q represents Fe, Co, Zn0.5Ti0.5, or Mg0.5Ti0.5. x represents a value of not less than 0.002 and not more than 0.02. ? represents a value of not less than 0.20 and not more than 0.50.
    Type: Application
    Filed: September 17, 2013
    Publication date: February 6, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Yoshiaki TANAKA, Takakiyo HARIGAI, Hideaki ADACHI, Eiji FUJII
  • Publication number: 20140011051
    Abstract: Provided is an NBT-BT lead-free piezoelectric film having a high crystalline orientation and a high piezoelectric constant. The present invention is a piezoelectric film comprising a NaxM1-x layer and a (Bi, Na)TiO3—BaTiO3 layer. The (Bi, Na) TiO3—BaTiO3 layer is formed on the NaxM1-x layer, where M represents Pt, Ir, or PtIr and x represents a value of not less than 0.002 and not more than 0.02. Both of the NaxM1-x layer and the (Bi, Na) TiO3—BaTiO3 layer have a (001) orientation only, a (110) orientation only, or a (111) orientation only.
    Type: Application
    Filed: September 13, 2013
    Publication date: January 9, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Takakiyo HARIGAI, Yoshiaki TANAKA, Hideaki ADACHI, Eiji FUJII
  • Publication number: 20130328974
    Abstract: The present invention provides a non-lead piezoelectric film having high crystalline orientation, the low dielectric loss, the high polarization-disappear temperature, the high piezoelectric constant, and the high linearity between an applied electric field and an amount of displacement. The present invention is a piezoelectric film comprising: a NaxLa1-x+yNi1-yO3-x layer having only an (001) orientation and a (1-?) (Bi, Na, Ba) TiO3-?BiQO3 layer having only an (001) orientation. The (1-?) (Bi, Na, Ba) TiO3-?BiQO3 layer is formed on the NaxLa1-x+yNi1-yO3-x layer. The character of Q represents Fe, Co, Zn0.5Ti0.5, or Mg0.5Ti0.5 The character of x represents a value of not less than 0.01 and not more than 0.05. The character of y represents a value of not less than 0.05 and not more than 0.20. The character of ? represents a value of not less than 0.20 and not more than 0.50.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 12, 2013
    Applicant: Panasonic Corporation
    Inventors: Yoshiaki TANAKA, Takakiyo HARIGAI, Hideaki ADACHI, Eiji FUJII
  • Publication number: 20130320806
    Abstract: Provided is a novel actuator and a method for driving the same. The present invention is an actuator comprising a first laminate comprising a first (Bi, Na, Ba) TiO3 layer between first and second electrode layers, a second laminate comprising a second (Bi, Na, Ba) TiO3 layer between third and fourth electrode layers, and a tilt part provided between the first and second laminates. Both of the first and second (Bi, Na, Ba) TiO3 layers are preferentially oriented in a [011] crystalline axis direction. Voltages V5a, V9a, V5b, and V9b which satisfy Requirement A: V5a>V9a and V5b<V9b or Requirement B: V5a<V9a and V5b>V9b are applied to the first-fourth electrode layers so as to tilt the tilt part. One of the first edge and the second edge is moved in the [011] crystalline axis direction and the other is moved in the reverse direction thereof.
    Type: Application
    Filed: August 8, 2013
    Publication date: December 5, 2013
    Applicant: PANASONIC CORPORATION
    Inventors: Michihito UEDA, Takakiyo HARIGAI, Yoshiaki TANAKA, Hideaki ADACHI, Eiji FUJII
  • Patent number: 8591009
    Abstract: The purpose of the present invention is to provide a BNT-BT piezoelectric film having a higher crystalline orientation, a higher piezoelectric constant, and a higher ferroelectric property. The present invention is directed to a piezoelectric film comprising a first electrode having only a (110) orientation; a (NaxBi0.5)TiO0.5x+2.75—BaTiO layer having only a (110) orientation, a (Bi,Na)TiO3—BaTiO3 layer having only a (110) orientation, and a second electrode, wherein a value of x is not less than 0.29 and not more than 0.40, and the first electrode, the (NaxBi0.5)TiO0.5x+2.75—BaTiO3 layer, the (Bi,Na)TiO3—BaTiO3 layer, and the second electrode are laminated in this order.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: November 26, 2013
    Assignee: Panasonic Corporation
    Inventors: Yoshiaki Tanaka, Takakiyo Harigai, Hideaki Adachi, Eiji Fujii
  • Publication number: 20130298674
    Abstract: The purpose of the present invention is to provide an angular velocity sensor capable of measuring an exact angular velocity, an ink jet head capable of producing an exact amount of ink, and a piezoelectric generating element capable of generating electric power due to positive piezoelectric effect. In the present invention, a piezoelectric film comprising a first electrode, a piezoelectric layer, and a second electrode is used. The first electrode comprises an electrode layer having a (001) orientation. The piezoelectric layer comprises a (NaxBiy)TiO0.5x+1.5y+2—BaTiO3 layer (0.30?x?0.46 and 0.51?y?0.62) having a (001) orientation.
    Type: Application
    Filed: July 16, 2013
    Publication date: November 14, 2013
    Inventors: Takakiyo HARIGAI, Yoshiaki TANAKA, Hideaki ADACHI, Eiji FUJII
  • Patent number: 8562113
    Abstract: The present invention provides a piezoelectric thin film comprising an electrode film with a (001) orientation, a (NaxBi0.5)TiO0.5x+2.75—BaTiO3 film with a (001) orientation (x represents not less than 0.29 and not more than 0.4) and a (Na,Bi)TiO3—BaTiO3 piezoelectric layer, the electrode film, the (NaxBi0.5)TiO0.5x+2.75—BaTiO3 film, and the (Na,Bi)TiO3—BaTiO3 piezoelectric layer being laminated in this order. The lead-free piezoelectric thin film of the present invention has low dielectric loss and high piezoelectric performance.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: October 22, 2013
    Assignee: Panasonic Corporation
    Inventors: Takakiyo Harigai, Yoshiaki Tanaka, Hideaki Adachi, Eiji Fujii
  • Patent number: 8562069
    Abstract: A fixing structure for a vehicle interior material in accordance with the present invention includes: a first interior base material including a first end portion; a second interior base material including a second end portion disposed adjacent to the first end portion; an ornamental member disposed along an axis defined by the first end portion and the second end portion; and a plurality of joints that indirectly fix the first end portion and the second end portion via the ornamental member.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: October 22, 2013
    Assignees: Toyota Boshoku Kabushiki Kaisha, Hayashi Telempu Co., Ltd
    Inventors: Mamoru Yamaguchi, Masami Uratsu, Michinori Kawasumi, Eiji Fujii, Koji Morita, Kenichi Uemori, Hiroshi Harada
  • Patent number: 8511162
    Abstract: The purpose of the present invention is to provide an angular velocity sensor capable of measuring an exact angular velocity, an ink jet head capable of producing an exact amount of ink, and a piezoelectric generating element capable of generating electric power due to positive piezoelectric effect. In the present invention, a piezoelectric film comprising a first electrode, a piezoelectric layer, and a second electrode is used. The first electrode comprises an electrode layer having a (001) orientation. The piezoelectric layer comprises a (NaxBiy)TiO0.5x+1.5y+2—BaTiO3 layer (0.30?x?0.46 and 0.51?y?0.62) having a (001) orientation.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: August 20, 2013
    Assignee: Panasonic Corporation
    Inventors: Takakiyo Harigai, Yoshiaki Tanaka, Hideaki Adachi, Eiji Fujii
  • Patent number: 8511799
    Abstract: It is an object of the present invention to provide a lead-free piezoelectric film including a lead-free ferroelectric material and having low dielectric loss and high piezoelectric performance comparable to that of PZT, and a method of manufacturing the lead-free piezoelectric film. The present invention is directed to a piezoelectric film comprising a (NaxBiy)TiO0.5x+1.5y+2—BaTiO3 layer with a (110) orientation, where 0.30?x?0. 46 and 0.51?y?0.62.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: August 20, 2013
    Assignee: Panasonic Corporation
    Inventors: Takakiyo Harigai, Yoshiaki Tanaka, Hideaki Adachi, Eiji Fujii
  • Patent number: 8414187
    Abstract: A temperature sensor includes first and second lower electrodes, a ferroelectric layer having polarization, a semiconductor layer; and first to third upper electrodes. The second upper electrode is interposed between the first upper electrode and the third upper electrode in a plan view. The semiconductor layer includes a first channel disposed between the first upper electrode and the second upper electrode, and a second channel disposed between the second upper electrode and the third upper electrode. The ferroelectric layer includes a first ferroelectric part disposed below the first channel and a second ferroelectric part disposed below the second channel. A polarization direction of the first ferroelectric part is opposite to a polarization direction of the second first ferroelectric part. The temperature is calculated based on the output voltage from the second upper electrode and the voltage applied to the first upper electrode.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: April 9, 2013
    Assignee: Panasonic Corporation
    Inventors: Michihito Ueda, Hiroyuki Tanaka, Yukihiro Kaneko, Eiji Fujii
  • Patent number: 8393719
    Abstract: The purpose of the present invention is to provide a lead-free piezoelectric film including a lead-free ferroelectric material and having low dielectric loss and high piezoelectric performance comparable to that of PZT, and a method of manufacturing the lead-free piezoelectric film. The present invention is directed to a piezoelectric film comprising a NaxLa1-xNiO3-x layer with a (001) orientation and a (Na,Bi)TiO3—BaTiO3 layer with a (001) orientation, wherein x is not less than 0.01 and not more than 0.1, and the NaxLa1-xNiO3-x layer (0.01?x?0.1) and the (Na,Bi)TiO3—BaTiO3 layer are laminated.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: March 12, 2013
    Assignee: Panasonic Corporation
    Inventors: Takakiyo Harigai, Yoshiaki Tanaka, Hideaki Adachi, Eiji Fujii
  • Patent number: 8390179
    Abstract: It is an object of the present invention to provide a lead-free piezoelectric film including a lead-free ferroelectric material and having low dielectric loss and high piezoelectric performance comparable to that of PZT, and a method of manufacturing the lead-free piezoelectric film. The present invention is directed to a piezoelectric film comprising a (NaxBiy)TiO0.5x+1.5y+2—BaTiO3 layer with a (111) orientation, where 0.30?x?0.46 and 0.51?y?0.62.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: March 5, 2013
    Assignee: Panasonic Corporation
    Inventors: Takakiyo Harigai, Yoshiaki Tanaka, Hideaki Adachi, Eiji Fujii