Patents by Inventor Yoshihiko Imanaka

Yoshihiko Imanaka 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: 8957499
    Abstract: A method of manufacturing a capacitor includes forming a first ceramic film on a first base made of a metal, forming a second ceramic film on a second base made of a metal, forming a first copper electrode pattern and a first copper via-plug on a surface of one of the first and second ceramic films, the electrode pattern and the via-plug being separate from each other, bonding the first and second ceramic films together with the first electrode pattern and the via-plug therebetween, by applying a pulsed voltage between the first base and the second base while the first base and the second base are pressed so that the first ceramic film and the second ceramic film are pressed on each other, and removing the second base.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: February 17, 2015
    Assignee: Fujitsu Limited
    Inventors: Yoshihiko Imanaka, Hideyuki Amada, Fumiaki Kumasaka
  • Patent number: 8404134
    Abstract: A method of manufacturing a electrode foil composed of a valve metal layer of a first valve metal and a metal foil of a second valve metal supporting the valve metal layer, the method includes coating fine particles of the first valve metal with a resin to form composite fine particles, forming the composite fine particles into an aerosol, jetting the aerosol to the metal foil in an atmosphere under a reduced pressure, depositing the composite fine particles onto the metal foil to form a aerosol deposition layer, and removing selectively the resin from the aerosol deposition layer to form the valve metal layer.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: March 26, 2013
    Assignee: Fujitsu Limited
    Inventors: Yoshihiko Imanaka, Hitoshi Yamada, Hideyuki Amada
  • Patent number: 8373966
    Abstract: A structural body which includes a first dielectric layer formed on a first substrate and including first conductive particles, each surface of the first conductive particles being entirely covered with a first dielectric film; and a second dielectric layer formed on the first dielectric layer wherein a volume ratio of a dielectric in the second dielectric layer is higher than a volume ratio of a dielectric in the first dielectric layer.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: February 12, 2013
    Assignee: Fujitsu Limited
    Inventor: Yoshihiko Imanaka
  • Publication number: 20120300371
    Abstract: An electrode foil includes a structure a structure in which metal particles and ceramic particles, which primarily include at least one of valve metal particles having a dielectric constant and ceramic particles, are deposited on a surface of a metal foil.
    Type: Application
    Filed: May 31, 2012
    Publication date: November 29, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Yoshihiko IMANAKA, Minoru Funahashi, Hidetoshi Ishizuka, Katsuharu Yamada
  • Patent number: 8278217
    Abstract: A semiconductor device includes a semiconductor chip having a surface provided with connecting electrodes, a stacked structure made up of alternately stacked dielectric and wiring layers and provided on the surface of the semiconductor chip, a passive element provided in the stacked structure and electrically connected to the wiring layers; and external electrodes for external electrical connection provided on the stacked structure and electrically connected to the connecting electrodes via the wiring layers. The passive element has at least one layer selected from a group consisting of a capacitor dielectric layer, a resistor layer and a conductor layer that are formed by spraying an aerosol particulate material.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: October 2, 2012
    Assignees: Fujitsu Limited, National Institute of Advanced Industrial Science and Technology
    Inventors: Yoshihiko Imanaka, Jun Akedo
  • Patent number: 8213159
    Abstract: An electrode foil includes a structure a structure in which metal particles and ceramic particles, which primarily include at least one of valve metal particles having a dielectric constant and ceramic particles, are deposited on a surface of a metal foil.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: July 3, 2012
    Assignee: Fujitsu Limited
    Inventors: Yoshihiko Imanaka, Minoru Funahashi, Hidetoshi Ishizuka, Katsuharu Yamada
  • Publication number: 20120074521
    Abstract: A method of manufacturing a capacitor includes forming a first ceramic film on a first base made of a metal, forming a second ceramic film on a second base made of a metal, forming a first copper electrode pattern and a first copper via-plug on a surface of one of the first and second ceramic films, the electrode pattern and the via-plug being separate from each other, bonding the first and second ceramic films together with the first electrode pattern and the via-plug therebetween, by applying a pulsed voltage between the first base and the second base while the first base and the second base are pressed so that the first ceramic film and the second ceramic film are pressed on each other, and removing the second base.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 29, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Yoshihiko Imanaka, Hideyuki Amada, Fumiaki Kumasaka
  • Patent number: 8080875
    Abstract: An interconnection substrate including therein one or more resin layers, each of the resin layers including therein a via-hole penetrating from a top surface to a bottom surface of the resin layer. A via-plug of metal particles is formed in the via-hole. Each of the metal particles has a flattened shape generally parallel to a plane of the resin layer.
    Type: Grant
    Filed: January 2, 2008
    Date of Patent: December 20, 2011
    Assignee: Fujitsu Limited
    Inventor: Yoshihiko Imanaka
  • Publication number: 20110298143
    Abstract: A copolycarbonate having a high refractive index, a small birefringence, high processability and excellent transparency and an optical lens formed from the copolycarbonate. The copolycarbonate has a total content of a unit represented by the following formula (I) and a unit represented by the following formula (II) of not less than 80 mol % based on the total of all the recurring units, the molar ratio of the unit represented by the formula (I) to the unit represented by the formula (II) being in the range of 98:2 to 35:65. (wherein each of R1, R2, R3 and R4 is independently a hydrogen atom, alkyl group having 1 to 20 carbon atoms or the like. X is an alkylene group having 2 to 8 carbon atoms or the like. Each of m and n is independently an integer of 1 to 10.) (wherein each of R5, R6, R7 and R8 is independently a hydrogen atom, alkyl group having 1 to 20 carbon atoms or the like.
    Type: Application
    Filed: March 2, 2010
    Publication date: December 8, 2011
    Applicant: Teijin Chemicals Ltd.
    Inventors: Kazunori Nunome, Manabu Matsui, Yoshihiko Imanaka
  • Patent number: 7781540
    Abstract: A resin composition, and molded articles thereof, where the resin composition simultaneously satisfies resistances, such as heat and environmental resistance, and moldability at high levels, and has excellent optical properties, such as high refractivity and low birefringence. The resin composition contains a polyester resin formed from a dicarboxylic acid component and a diol component (a) and a polycarbonate resin formed from a carbonate-forming component and a diol component (b), the diol component (a) containing a specific fluorene-containing compound and the diol component (b) containing a specific fluorene-containing compound.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: August 24, 2010
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Takatsune Yanagida, Masatoshi Ando, Yoshihiko Imanaka, Masahiro Yamada, Shinichi Kawasaki, Mitsuaki Yamada, Hiroaki Murase, Tsuyoshi Fujiki, Kana Kobori
  • Patent number: 7772356
    Abstract: The present invention discloses an infrared absorption filter which enables a coloring matter having infrared absorptivity to be contained or dispersed uniformly in a high concentration and has excellent durability, and an infrared absorption panel comprising this infrared absorption filter. The infrared absorption filter comprises a polycarbonate resin which contains 20 to 100 mol % of a recurring unit having a fluorene skeleton represented by the formula (1) and 0 to 80 mol % of a recurring unit represented by the formula (2), and a coloring matter having infrared absorptivity.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: August 10, 2010
    Assignee: Osaka Gas Co., Ltd.
    Inventors: Masahiro Yamada, Tsuyoshi Fujiki, Shinichi Kawasaki, Mitsuaki Yamada, Takatsune Yanagida, Masatoshi Ando, Yoshihiko Imanaka
  • Publication number: 20100165544
    Abstract: An electrode foil includes a structure a structure in which metal particles and ceramic particles, which primarily include at least one of valve metal particles having a dielectric constant and ceramic particles, are deposited on a surface of a metal foil.
    Type: Application
    Filed: October 16, 2009
    Publication date: July 1, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Yoshihiko Imanaka, Minoru Funahashi, Hidetoshi Ishizuka, Katsuharu Yamada
  • Publication number: 20100123996
    Abstract: A structural body which includes a first dielectric layer formed on a first substrate and including first conductive particles, each surface of the first conductive particles being entirely covered with a first dielectric film; and a second dielectric layer formed on the first dielectric layer wherein a volume ratio of a dielectric in the second dielectric layer is higher than a volume ratio of a dielectric in the first dielectric layer.
    Type: Application
    Filed: October 8, 2009
    Publication date: May 20, 2010
    Applicant: FUJITSU LIMITED
    Inventor: Yoshihiko Imanaka
  • Patent number: 7700714
    Abstract: There are provided an optical element that comprises a polymer which has a structural unit derived from a specific dihydroxy compound typified by 2,2-bis(4-hydroxyphenyl)-1,1,1,3,3,3-hexafluoro propane (bisphenol AF) and in which the relationship between a refractive index nD and an Abbe number ?D satisfies the following formula (I): nD+0.0076×?D?1.78??(I) and that is used for correction of chromatic aberration, and an achromatic lens using the optical element.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: April 20, 2010
    Assignee: Teijin Chemicals, Ltd.
    Inventors: Kunio Hatanaka, Yoshihiko Imanaka, Masanori Monri
  • Publication number: 20090316333
    Abstract: A method for manufacturing a capacitor, includes: accelerating conductor particles by ejecting the conductor particles together with gas, each surface of the conductor particles covered with a dielectric entirely; fixing the conductor particles to a substrate with the surface of the conductor particles still covered with the dielectric entirely by colliding the conductor particles with the substrate; and sandwiching a deposited film formed of the conductor particles fixed to the substrate between electrodes.
    Type: Application
    Filed: March 26, 2009
    Publication date: December 24, 2009
    Applicant: FUJITSU LIMITED
    Inventor: Yoshihiko Imanaka
  • Publication number: 20090212013
    Abstract: A method of manufacturing a electrode foil composed of a valve metal layer of a first valve metal and a metal foil of a second valve metal supporting the valve metal layer, the method includes coating fine particles of the first valve metal with a resin to form composite fine particles, forming the composite fine particles into an aerosol, jetting the aerosol to the metal foil in an atmosphere under a reduced pressure, depositing the composite fine particles onto the metal foil to form a aerosol deposition layer, and removing selectively the resin from the aerosol deposition layer to form the valve metal layer.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 27, 2009
    Applicant: FUJITSU LIMITED
    Inventors: Yoshihiko Imanaka, Hitoshi Yamada, Hideyuki Amada
  • Patent number: 7579251
    Abstract: A circuit substrate includes a passive element and an interconnection pattern, wherein any of the passive element and the interconnection pattern is formed by an aerosol deposition process that uses aerosol of a fine particle material.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: August 25, 2009
    Assignees: Fujitsu Limited, National Institute of Advanced Industrial Science And Technology
    Inventors: Yoshihiko Imanaka, Jun Akedo, Maxim Lebedev
  • Patent number: 7557014
    Abstract: A semiconductor apparatus comprises a support substrate having through holes filles with conductor adapted to a first pitch; a capacitor formed on or above said support substrate; a wiring layer formed on or above said support substrate, leading some of said through holes filles with conductor upwards through said capacitor, having branches, and having wires of a second pitch different from said first pitch; and plural semiconductor elements disposed on or above said wiring layer, having terminals adapted to the second pitch, and connected with said wiring layer via said terminals. A semiconductor apparatus, in which semiconductor elements having a narrow terminal pitch, a support having through wires at a wider pitch, and a capacitor are suitably electrically connected to realize the decoupling function with reduced inductance and large capacitance.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: July 7, 2009
    Assignee: Fujitsu Limited
    Inventors: Keishiro Okamoto, Takeshi Shioga, Osamu Taniguchi, Koji Omote, Yoshihiko Imanaka, Yasuo Yamagishi
  • Publication number: 20090143560
    Abstract: There are provided an optical element that comprises a polymer which has a structural unit derived from a specific dihydroxy compound typified by 2,2-bis(4-hydroxyphenyl)-1,1,1,3,3,3-hexafluoro propane (bisphenol AF) and in which the relationship between a refractive index nD and an Abbe number ?D satisfies the following formula (I): nD+0.0076×?D?1.78??(I) and that is used for correction of chromatic aberration, and an achromatic lens using the optical element.
    Type: Application
    Filed: November 8, 2006
    Publication date: June 4, 2009
    Inventors: Kunio Hatanaka, Yoshihiko Imanaka, Masanori Monri
  • Patent number: 7468490
    Abstract: A circuit substrate comprises a lamination of plural resin insulation films and includes, on a surface and in an interior of the circuit substrate, plural interconnection layers. One of the plural resin insulation films is formed on a first conductor pattern constituting one of the plural interconnection layers in such a manner that a bottom principal surface of the resin insulation film makes a contact with a surface of the first conductor pattern, the resin insulation film including an opening defined by a sloped surface and exposing the first conductor pattern at the bottom principal surface. A ceramic high-K dielectric film is formed at a bottom of the opening in contact with the surface of the first conductor pattern, wherein there is formed a second conductor pattern constituting one of the plural interconnection layers on the resin insulation film so as to cover the sloped surface and in contact with a surface of the ceramic high-K dielectric film.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: December 23, 2008
    Assignee: Fujitsu Limited
    Inventors: Nobuyuki Hayashi, Yoshihiko Imanaka