Patents by Inventor Hiroshi Yoshikawa

Hiroshi Yoshikawa 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: 7888760
    Abstract: A solid state imaging device includes: an imaging device substrate with an imaging device section formed on a first major surface side thereof; a backside interconnect electrode provided on a second major surface side of the imaging device substrate and electrically connected to the imaging device section, the second major surface being on the opposite side of the first major surface; a circuit substrate provided with a circuit substrate electrode opposed to the second major surface; a connecting portion electrically connecting the backside interconnect electrode to the circuit substrate electrode; and a light shielding layer provided coplanar with the backside interconnect electrode or on the circuit substrate side of the backside interconnect electrode.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: February 15, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hitoshi Sugiyama, Atsuko Yamashita, Kazutaka Akiyama, Susumu Harada, Masahiro Sekiguchi, Masayuki Dohi, Kazumasa Tanida, Chiaki Takubo, Hiroshi Yoshikawa, Akihiro Hori
  • Patent number: 7884743
    Abstract: Disclosed herein is an arithmetic decoding device including: an arithmetic decoding unit configured to decode coded data resulting from arithmetic coding on a basis of a context variable indicating a probability state and a most probable symbol; a plurality of arithmetic registers configured to supply the context variable to the arithmetic decoding unit and retain a result of operation by the arithmetic decoding unit; and a plurality of save registers configured to save contents retained in the arithmetic registers.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: February 8, 2011
    Assignee: Sony Corporation
    Inventors: Hiroaki Sakaguchi, Hiroshi Yoshikawa
  • Publication number: 20110002783
    Abstract: A ceiling fan comprising a motor which rotates a plurality of blades provided in a horizontal direction, a shaft projecting from an upper portion of the motor, a pipe which is connected to an upper end of the shaft and which hangs from a ceiling surface, a connecting rod for connecting the pipe and the shaft with each other via through holes formed in the pipe and the shaft, respectively, a female screw which is threadedly engaged with the connecting rod, a displacement-correspondence tool which is displaced or which detects a displacement amount in correspondence with a relative positional displacement amount between the shaft and the pipe, and a power source control tool which controls energization to the motor in accordance with the displacement of the displacement-correspondence tool or the detected displacement amount.
    Type: Application
    Filed: February 27, 2009
    Publication date: January 6, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Kiminobu Yamamoto, Tetsuji Kawazu, Hiroshi Yoshikawa, Kiyohiko Iwamoto
  • Publication number: 20100299103
    Abstract: A 3D shape measurement apparatus for measuring a 3D shape of an object existing on a measurement area, comprising, a pattern projection unit for projecting a pattern having a periodicity onto the measurement area, and a capturing unit for capturing an image of the area where the pattern is projected, wherein the measurement area is specified by a reference plane, a projection area of the pattern projection unit, and a capturing area of the capturing unit, and the pattern projection unit projects the pattern to be focused on the reference plane. The apparatus further comprises a first calculation unit for calculating phase information of a pattern of the captured image, a second calculation unit for calculating defocus amounts of the pattern in the captured image, and a third calculation unit for calculating a 3D shape of the object based on the phase information and the defocus amounts.
    Type: Application
    Filed: May 14, 2010
    Publication date: November 25, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Hiroshi Yoshikawa
  • Publication number: 20100282213
    Abstract: To facilitate early stabilization of an integral value at the time of start up and improve stability and responsiveness of a rail pressure control. When an ignition switch 11 is turned on, an initial value for an integral calculation that calculates an integral value of a difference between a target current and an actual current of a flow rate control valve 6 is set to a predetermined value to supply the target current at that time point to the flow rate control valve 6 (S102, S104). In addition, a second integral gain K2 that is larger than a first integral gain K1, which is used under normal conditions, is set as an integral gain K in the integral calculation during a predetermined time period To after the ignition switch 11 is turned on, while the first integral gain K1 is set as the integral gain after the predetermined time period To elapses (S106 to S108).
    Type: Application
    Filed: December 10, 2008
    Publication date: November 11, 2010
    Inventors: Hiroshi Yoshikawa, Shoko Tanida
  • Publication number: 20100220338
    Abstract: A measurement apparatus includes an illumination light setting unit which sets illumination light having an optical characteristic corresponding to a microstructure which is formed on the surface of a measurement target and is to be measured, a measurement unit which measures reflected light when the measurement target is irradiated with the illumination light, and an extraction unit which extracts, from the measured reflected light, information about the surface shape of the measurement target and the microstructure formed on the surface.
    Type: Application
    Filed: August 14, 2008
    Publication date: September 2, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kazuyuki Ota, Hiroshi Yoshikawa, Yusuke Mitarai, Masafumi Takimoto, Kazunori Okudomi, Hiroyuki Shinbata, Kenji Saitoh, Masakazu Matsugu
  • Publication number: 20100220950
    Abstract: In a state in which a first ball 103 is assembled in between a first inner peripheral raceway surface of an outer ring 105 and an outer peripheral raceway surface of a shaft 101, and a second ball 104 is placed in between a second inner peripheral raceway surface of the outer ring 105 and an outer peripheral surface of the shaft 101, a first distance “a” from a plane “q” generally perpendicular to a central axis “p” of the shaft 101 to the second ball 104 and a second distance “b” from the plane “q” to a stepped portion 107 of the shaft 101 are measured. Then, the size in the axial direction of the inner ring 102 is adjusted on the basis of a difference between the first distance “a” and the second distance “b”.
    Type: Application
    Filed: January 18, 2007
    Publication date: September 2, 2010
    Applicant: JTEKT CORPORATION
    Inventors: Hiroyuki Miura, Hiroshi Yoshikawa, Yasuhiro Ohtani, Eiji Murata, Daisaku Tomita
  • Patent number: 7764463
    Abstract: A fluid dynamic bearing having a shaft (12) and a bearing sleeve (11) rotatably supported relative to each other. At least one of the shaft and the bearing sleeve is made of steel or stainless steel made of by weight C: 0.6˜1.20%; Si: 1.0% or less; Mn: 1.0% or less; Cr: 10.5˜18.0%; Mo: 1.0% or less; S.: 0.03% or less; and Fe. The dynamic pressure bearing surface (20) is formed by ridges (22) remaining in between multiple dynamic pressure grooves (21) formed by electrochemical machining.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: July 27, 2010
    Assignee: Minebea Co., Ltd.
    Inventors: Rikuro Obara, Hiroshi Yoshikawa
  • Patent number: 7728398
    Abstract: A semiconductor chip constituting an image pickup device is provided on a substrate and includes a connection terminal and an image pickup portion. A lens sheet having a lens portion is provided on the semiconductor chip. A groove is formed in at least the substrate to expose the connection terminal. A conductor pattern is formed in the groove and has one end electrically connected to the connection terminal.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: June 1, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hironori Nakajo, Hiroshi Yoshikawa, Michio Sasaki, Akihiro Hori
  • Publication number: 20100111515
    Abstract: An illumination apparatus which illuminates a surface of an object having a three-dimensional shape includes a light source, a guide configured to guide light from the light source to a surface of the object, and a diffuser which has a diffusion-reflection surface that faces a light exit surface of the guide via the object, wherein the diffuser is arranged at such a position that the light which is emitted from the guide and is not directly incident on the object is incident on the diffusion-reflection surface while a part of the light reflected and diffused by the diffusion-reflection surface is incident on a surface of the object.
    Type: Application
    Filed: November 4, 2009
    Publication date: May 6, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenji Saitoh, Hiroshi Yoshikawa
  • Publication number: 20100040494
    Abstract: A ceiling fan includes a motor for rotating multiple blades. This motor includes a hollow shaft that is disposed upright on the center of a disc-like stator, and a rotor around an outer periphery of the stator. The rotor integrally rotates with the blades. This motor further includes a cylindrical bearing housing, and a pair of upper ball bearing and a lower ball bearing housed in this bearing housing. This bearing housing has a base in its center. The upper ball bearing is disposed over the base, and the lower ball bearing is disposed under the base in this bearing housing. Both bearings are fixed onto the hollow shaft.
    Type: Application
    Filed: September 26, 2007
    Publication date: February 18, 2010
    Inventors: Kiminobu Yamamoto, Tetsuji Kawazu, Hiroshi Yoshikawa, Kiyohiko Iwamoto, Yoshiki Tanimura
  • Publication number: 20100015533
    Abstract: A non-aqueous electrolyte secondary battery including: a positive electrode that contains a transition metal oxide capable of absorbing and desorbing lithium ions; a negative electrode that is capable of absorbing and desorbing lithium ions; a porous film that is interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein at least one selected from inorganic oxide and polyamide is contained in the porous film, and 5 to 15 vol % of ethylene carbonate is contained in a non-aqueous solvent that is contained in the non-aqueous electrolyte.
    Type: Application
    Filed: April 10, 2008
    Publication date: January 21, 2010
    Inventors: Masaki Deguchi, Tooru Matsui, Hiroshi Yoshikawa
  • Publication number: 20090273491
    Abstract: Disclosed herein is an arithmetic decoding device including: an arithmetic decoding unit configured to decode coded data resulting from arithmetic coding on a basis of a context variable indicating a probability state and a most probable symbol; a plurality of arithmetic registers configured to supply the context variable to the arithmetic decoding unit and retain a result of operation by the arithmetic decoding unit; and a plurality of save registers configured to save contents retained in the arithmetic registers.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 5, 2009
    Inventors: Hiroaki SAKAGUCHI, Hiroshi Yoshikawa
  • Patent number: 7605860
    Abstract: Provided is an image pickup optical system capable of performing focusing in a wide region without a large increase in tilt angle in the case where an image of an object is picked up from a low angle. The image pickup optical system includes a first optical system and a second optical system, for enlarging an image formed by the first optical system and forming the enlarged image. A principal plane of the first optical system is tilted relative to an image plane of the second optical system.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: October 20, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kenji Saitoh, Hiroshi Yoshikawa, Kenichi Saito
  • Publication number: 20090238265
    Abstract: Disclosed herein is a decoding apparatus including: a pixel group information storage section configured to include memory areas each of which stores, as pixel group information, information concerning a corresponding pixel group and is referred to with a horizontal address of the pixel group, and an additional memory area that is located at a left end and stores a value indicating invalid pixel group information; a decoding information generation section configured to acquire the pixel group information identified by an address of a pixel group to be decoded and an address to the left thereof, and generating decoding information; a decoding section configured to perform a decoding process based on the decoding information; and a pixel group information update section configured to generate pixel group information and allowing it to be stored in the memory area identified by the address of the pixel group.
    Type: Application
    Filed: March 17, 2009
    Publication date: September 24, 2009
    Applicant: Sony Corporation
    Inventor: Hiroshi Yoshikawa
  • Publication number: 20090209919
    Abstract: The present invention inhibits the occurrence of the foreign matters attributable to an adhesive for bonding an injection needle to a needle-base member so as to enhance the yield of a syringe when producing the same. A front-assembly (3) additionally provided at a leading end of an injection cylinder (2) comprises an injection needle (4), a needle-base member (5), a connection hub (6) and a protector cap (7). The injection needle (4) and the needle-base member (5) are fixed to each other with an epoxy adhesive (19). This adhesive (19) contains denatured aliphatic epoxy resin in the amount set to about 10 to about 25 wt % and its viscosity is set to about 20000 to about 40000 mPa·s. This adhesive (19) is heated at a temperature of at least 130 degrees C. for about 20 minutes to cure it. After the front-assembly (3) and the injection cylinder (2) have been sterilized with vapor, the connection hub (6) has a connection portion (17) external fitted and secured to the leading end of the injection cylinder (2).
    Type: Application
    Filed: June 5, 2006
    Publication date: August 20, 2009
    Inventors: Yuusuke Sakurai, Jotaro Kishimoto, Hiroshi Yoshikawa, Masahiko Kato
  • Publication number: 20090102300
    Abstract: The invention relates to a spindle motor for a hard disk drive comprising a baseplate (1), a shaft (2) fixedly connected to the baseplate (1), a thrust plate (3) fixedly connected to the free end of the shaft, a bearing bush (4) disposed about the shaft (2) and the thrust plate (3) and rotatably supported with respect to these components, a bearing gap (5) that is provided between the adjoining surfaces of the shaft (2), the bearing bush (4) and the thrust plate (3), at least one radial bearing (6; 7) formed by the adjoining surfaces of the shaft (2) and the bearing bush (4), an axial bearing (8) formed by the adjoining surfaces of the thrust plate (3) and the bearing bush (4), an annular rotor component (9) connected to the bearing bush (4), and an electromagnetic drive system having a rotor magnet (11) fixed to a rotating component and a stator arrangement (12) disposed on the baseplate (1) opposite the rotor magnet (11).
    Type: Application
    Filed: October 19, 2007
    Publication date: April 23, 2009
    Inventors: Thilo Rehm, Olaf Winterhalter, Hiroshi Yoshikawa, Toshimitsu Horiuchi
  • Publication number: 20090096051
    Abstract: A solid state imaging device includes: an imaging device substrate with an imaging device section formed on a first major surface side thereof; a backside interconnect electrode provided on a second major surface side of the imaging device substrate and electrically connected to the imaging device section, the second major surface being on the opposite side of the first major surface; a circuit substrate provided with a circuit substrate electrode opposed to the second major surface; a connecting portion electrically connecting the backside interconnect electrode to the circuit substrate electrode; and a light shielding layer provided coplanar with the backside interconnect electrode or on the circuit substrate side of the backside interconnect electrode.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 16, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hitoshi SUGIYAMA, Atsuko Yamashita, Kazutaka Akiyama, Susumu Harada, Masahiro Sekiguchi, Masayuki Dohi, Kazumasa Tanida, Chiaki Takubo, Hiroshi Yoshikawa, Akihiro Hori
  • Patent number: 7505644
    Abstract: An optical memory medium (2) has cores (21) each constituting a planar optical waveguide and clads (22) sandwiching each core, and has a data image (203) in which data is recorded as a scattering factor and a pair of positioning marks (201, 202) which are scattering factors required for positioning at an interface between a core (21) and a clad (22) or in the core (21). A read light (103) travels while spreading in the core (21) and scatters and interferes by the data image (203), and data is reproduced from a data reproduction light (1031) generated by this scattering and interference. A pair of positioning lights (101, 102) are caused to enter the core (21) with offsets with respect to the read light (103) in opposite directions along a thickness direction of the core (21), and scatter and interfere at the pair of positioning marks (201, 202).
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: March 17, 2009
    Assignee: Nippon Telephone & Telegraph Corporation
    Inventors: Yoshiaki Kurokawa, Shogo Yagi, Akinori Furuya, Masahiro Endo, Tadayuki Imai, Hiroshi Yoshikawa
  • Publication number: 20090015823
    Abstract: An inspection apparatus includes a captured image acquiring unit configured to acquire a captured image that is acquired by shooting an inspection target, an acquiring unit configured to acquire from the captured image a first image region and a second image region whose intensity distributions of reflected light with respect to an incident angle of illumination light emitted to the inspection target are different, and an image processing unit configured to perform image processing for performing different surface inspections on the first image region and the second image region respectively.
    Type: Application
    Filed: July 11, 2008
    Publication date: January 15, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hiroshi Yoshikawa, Kenji Saitoh