Patents by Inventor Shuichi Takeuchi

Shuichi Takeuchi 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).

  • Publication number: 20090080319
    Abstract: There is provided an objective optical system including an optical element having a phase shift structure, and a single-element objective lens made of resin, wherein the phase shift structure includes a plurality of refractive surface zones, the phase shift structure includes a first area to contribute to converging at least the third light beam on a record surface of the third optical disc, the first area includes at least two types of steps, each of which is formed at a boundary between adjacent ones of the plurality of refractive surface zones, the at least two types of steps gives optical path length differences different from each other to an incident light beam, the annular zone structure satisfies following conditions: 0.01<(EP21?EP11)/EP11<0.10 0.04<(EP31?EP11)/EP11<0.30 ?100<?(?OPD11/?1)+?(?OPD12/?1)<?10 where EP11=INT((?OPD11/?1)+0.5)×(?1(n1?1)), EP21=INT((?OPD21/?2)+0.5)×(?2(n1?1)), EP31=INT((?OPD31/?3)+0.5)×(?3(n1?1)).
    Type: Application
    Filed: September 18, 2008
    Publication date: March 26, 2009
    Applicant: HOYA CORPORATION
    Inventors: Daisuke KOREEDA, Shuichi TAKEUCHI, Yoshiyuki TASHIRO
  • Publication number: 20090052307
    Abstract: There is provided an objective optical system for an optical information recording/reproducing device. The objective optical system includes an optical element having an annular zone structure on at least one surface. The annular zone structure includes annular zones configured to have at least one step formed, at a boundary between adjacent ones of the annular zones, to extend in a direction of an optical axis. The at least one step is provided to cause a predetermined optical path length difference between a light beam passing through an outside of the boundary and a light beam passing through an inside of the boundary. The predetermined optical path length difference given to a first light beam by the at least one step is approximately equal to an odd multiple of a first wavelength ?a. Abbe number of material of the optical element satisfies a condition of 15<?d<35.
    Type: Application
    Filed: August 19, 2008
    Publication date: February 26, 2009
    Applicant: HOYA CORPORATION
    Inventors: Yoshiyuki TASHIRO, Daisuke KOREEDA, Shuichi TAKEUCHI
  • Publication number: 20090053852
    Abstract: A manufacturing method for an electronic apparatus and manufacturing apparatus are provided. The manufacturing method includes applying to a surface of a sheet an adhesive to be charged into a space between a mounting board and an electronic component mounted on the mounting board, bringing the one surface of the sheet into contact with a back surface of the electronic component mounted on the mounting board and charging the adhesive into the space by bringing the adhesive into contact with a peripheral portion of the electronic component under a low pressure, and pressing a heating head against the other surface of the sheet and heating the sheet with the heating head via the sheet to set the adhesive under atmospheric pressure, in a state that the sheet is in contact with the electronic component.
    Type: Application
    Filed: August 15, 2008
    Publication date: February 26, 2009
    Applicant: Fujitsu Limited
    Inventors: Shuichi Takeuchi, Kenji Kobae, Takashi Kubota, Hiroshi Kobayashi
  • Publication number: 20090052305
    Abstract: There is provided an optical pick-up including first to third light sources respectively emitting first to third light beams, a first coupling lens, and an objective lens formed to converge each of the first, second and third light beams onto the first, second and third optical discs, respectively. The objective lens has a step structure including a plurality of concentrically formed refractive surface zones divided by steps, the step structure having a function of giving, at each step, an optical path length difference of approximately 2?1 to the first light beam. The first coupling lens causes the first light beam to be incident on the objective lens as a converging beam. The objective lens is positioned to satisfy a condition: ?0.35<f2×M2?f1×M1<?0.07??(1).
    Type: Application
    Filed: August 21, 2008
    Publication date: February 26, 2009
    Applicant: HOYA CORPORATION
    Inventors: Daisuke KOREEDA, Shuichi TAKEUCHI
  • Publication number: 20090016194
    Abstract: An optical pickup device includes a first light source emitting first light with a first wavelength, a second light source emitting second light with a second wavelength, a third light source emitting third light with a third wavelength, an objective lens having a step structure, the objective lens being disposed to satisfy predetermined conditions, at least one first coupling lens making the first light and the second light incident onto the objective lens as converged light, a second coupling lens making the third light incident onto the objective lens as diverging light, and a liquid crystal aberration correcting element.
    Type: Application
    Filed: June 26, 2008
    Publication date: January 15, 2009
    Applicant: HOYA CORPORATION
    Inventors: Daisuke KOREEDA, Shuichi TAKEUCHI
  • Patent number: 7471081
    Abstract: A slider tester includes a driving unit that rotates a test medium, a set plate that detachably supports a slider as a single body, and an investigating apparatus that is electrically connected to the slider supported by the set plate and investigates the characteristics of the slider. A movable support part 30 that tiltably supports the slider is provided on the set plate. There is also provided a pressing mechanism that elastically presses the slider via the movable support part toward a surface of the medium to dispose the slider floating over the surface of the medium. The pressing mechanism includes an elastic body 56 composed of a plate spring that contacts the movable support part and elastically presses the movable support part.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: December 30, 2008
    Assignee: Fujitsu Limited
    Inventors: Norio Kainuma, Kenji Kobae, Hidehiko Kira, Hiroshi Kobayashi, Shuichi Takeuchi, Takayoshi Matsumura, Hirokazu Yamanishi, Shinji Hiraoka, Yoshiaki Yanagida
  • Patent number: 7468942
    Abstract: An optical pickup has a light source for emitting a plurality of laser beams with different wavelengths; and an objective lens for focusing the laser beams emitted from the light source on recording surfaces of plural types of information recording media. A diffractive lens structure is provided in a light path of the laser beam, the structure including ring zone areas divided by a plurality of phase steps for correcting a wavefront aberration of the laser beam, a diameter of an outermost phase step of the diffractive lens structure is smaller than a second largest effective diameter of effective diameters required for reproduction of the plural types of information recording media.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: December 23, 2008
    Assignees: Pioneer Corporation, Hoya Corporation
    Inventors: Katsuhiro Koike, Koichi Maruyama, Shuichi Takeuchi
  • Publication number: 20080259775
    Abstract: There is provided an objective lens for an optical pick-up. The objective lens includes a first surface on a light source side, and a second surface on an optical disc side. The first surface has a convex shape. Te objective lens is formed to be a single-element lens having a numerical aperture of 0.75 or more. In this configuration, the objective lens satisfies a condition: 0.95<(n?1)·tan ?max<1.50 ??(1) where ?max represents a maximum angle of a normal to the first surface with respect to an optical axis in an effective diameter of the first surface, and n represents a refractive index of the objective lens.
    Type: Application
    Filed: April 16, 2008
    Publication date: October 23, 2008
    Applicant: HOYA CORPORATION
    Inventors: Naoki YAMAGATA, Shuichi TAKEUCHI
  • Patent number: 7433291
    Abstract: An objective lens used for recording data to and/or reproducing data from a plurality of types of optical discs having different thicknesses of cover layers. The objective lens satisfies a condition 0.02<M2?M1<0.15, where M1 represents a magnification of the objective lens when recording/reproducing for a first optical disc is performed using the first light beam, and M2 represents a magnification of the objective lens when the recording/reproducing for a second optical disc is performed using the second light beam. Further, at least one of lens surfaces of the objective lens is provided with a diffracting structure having a plurality of annular zones configured to correct spherical aberrations for both of the first and second optical discs.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: October 7, 2008
    Assignee: Hoya Corporation
    Inventors: Daisuke Koreeda, Koichi Maruyama, Shuichi Takeuchi
  • Publication number: 20080216917
    Abstract: A resin filling apparatus, a filling method, and a method of manufacturing an electronic device fill a cavity between a substrate and an electronic component mounted on the substrate with resin. The resin filling apparatus includes a stage for supporting the substrate in an inclined state, and an application head for filling the cavity with resin from a lower side of the inclined substrate.
    Type: Application
    Filed: January 25, 2008
    Publication date: September 11, 2008
    Applicant: FUJITSU LIMITED
    Inventor: Shuichi TAKEUCHI
  • Publication number: 20080202678
    Abstract: A production method of an electronic apparatus includes: a step of making a thermosetting adhesive adhere to a face of a base where an antenna pattern is formed on a film made of a resin material, the face being a face which the antenna pattern is formed on; a step of mounting a circuit chip connected to the antenna pattern, on the base through the thermosetting adhesive; a preheating step of heating the thermosetting adhesive on a first heating condition by which the thermosetting adhesive becomes a first cured state; and a main heating step of fixing the circuit chip to the antenna pattern by heating and curing the thermosetting adhesive on a second heating condition by which the thermosetting adhesive becomes a second cured state harder than the first cured state, with the base being clamped and pressurized from both of the circuit chip side and the film side.
    Type: Application
    Filed: December 28, 2007
    Publication date: August 28, 2008
    Applicant: FUJITSU LIMITED
    Inventors: Hiroshi KOBAYASHI, Kenji KOBAE, Shuichi TAKEUCHI
  • Patent number: 7414948
    Abstract: There is provided an objective lens used for a plurality of types of optical discs having a front surface and a rear surface, each of which includes an inner region and an outer region. The outer region has a surface shape which suppresses a coma caused when a beam used for a first optical disc is incident thereon obliquely with respect to an optical axis of the objective lens. The inner region is configured such that, at a boundary position between the inner region and the outer region, the coma caused when a beam used for a second optical disc is incident on the inner region obliquely at a first angle with respect to the optical axis is less than the coma caused when the beam used for the second optical disc is incident on the outer region obliquely at the first angle with respect to the optical axis. Further, an inclination ?2A of the inner region and an inclination ?2B of the outer region of the rear surface satisfy a condition: ?2.5<?2B??2A<0.0.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: August 19, 2008
    Assignee: Hoya Corporation
    Inventors: Daisuke Koreeda, Koichi Maruyama, Shuichi Takeuchi
  • Publication number: 20080191135
    Abstract: An object of the present invention is to provide a scanning electron microscope including decelerating-electric-field forming means for decreasing the energy of a beam of electrons reaching a sample, and being capable of selectively detecting BSEs with high efficiency. To this end, the scanning electron microscope including the decelerating-electric-field forming means has a detector for detecting electrons. The detector includes a part for receiving the electrons at a position which is positioned outside trajectories of SEs accelerated by the decelerating-electric-field forming means, and which is further away from the optical axis of the beam of electrons than the trajectories of the SEs.
    Type: Application
    Filed: January 29, 2008
    Publication date: August 14, 2008
    Applicant: Hitachi High-Technologies Corporation
    Inventors: Yasuko Aoki, Tetsuya Sawahata, Mine Araki, Atsushi Muto, Shuichi Takeuchi
  • Publication number: 20080191879
    Abstract: A tag manufacturing system includes an antenna forming apparatus which forms multiple antennas in such a way that the antennas are formed in a point-symmetrical arrangement including antenna orientations, on a long base sheet large enough to place multiple bases, and winds the base sheet into a roll body; an IC chip mounting apparatus which pulls the base sheet out of the roll body, mounts an IC chip on each of the antennas formed on the pulled base sheet in an orientation corresponding to an orientation of each antenna, and electrically connects the IC chip with the antenna; and a post-processing apparatus which performs post-processing of the base sheet with the IC chips mounted on the antennas to work up the base sheet into finished RFID tags.
    Type: Application
    Filed: December 28, 2007
    Publication date: August 14, 2008
    Applicant: FUJITSU LIMITED
    Inventors: Hiroshi KOBAYASHI, Shuichi TAKEUCHI
  • Patent number: 7411884
    Abstract: An optical system for an optical disc drive includes a light source, an objective lens and a collimator lens. The light source emits first and second light beams. The first light beam is for reproducing data from a digital versatile disc while the second light beam is for a compact disc. The objective lens is provided with a diffraction structure which is designed to focus the first light beam on a recording layer of the digital versatile disc and the second light beam on a recording layer of the compact disc. The collimator lens is disposed between the light source and the objective lens. The collimator lens adjusts the diverging/converging angle of the first and second light beams entering the objective lens. The change in spherical aberration of the first light beam caused by wavelength deviation from a design wavelength due to individual specificity of the light source is corrected by adjusting the diverging/converging angle of the first light beam emerging from the collimator lens.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: August 12, 2008
    Assignee: Hoya Corporation
    Inventor: Shuichi Takeuchi
  • Publication number: 20080180815
    Abstract: There is provided an objective lens for an optical pick-up. The objective lens is formed to be a single-element plastic lens having a first surface and a second surface. The first surface is configured to have, within an effective diameter, an inflection point at which a second derivative of a sag of the first surface takes a value of 0. Further, the objective lens having a numerical aperture larger than or equal to 0.75.
    Type: Application
    Filed: January 29, 2008
    Publication date: July 31, 2008
    Applicant: PENTAX CORPORATION
    Inventors: Naoki YAMAGATA, Shuichi TAKEUCHI
  • Publication number: 20080165436
    Abstract: There is provided an objective lens used for a plurality of types of optical discs having a front surface and a rear surface, each of which includes an inner region and an outer region. The outer region has a surface shape which suppresses a coma caused when a beam used for a first optical disc is incident thereon obliquely with respect to an optical axis of the objective lens. The inner region is configured such that, at a boundary position between the inner region and the outer region, the coma caused when a beam used for a second optical disc is incident on the inner region obliquely at a first angle with respect to the optical axis is less than the coma caused when the beam used for the second optical disc is incident on the outer region obliquely at the first angle with respect to the optical axis. Further, an inclination ?2A of the inner region and an inclination ?2B of the outer region of the rear surface satisfy a condition: ?2.5<?2B??2A<0.0 . . . (1).
    Type: Application
    Filed: March 12, 2008
    Publication date: July 10, 2008
    Applicant: PENTAX CORPORATION
    Inventors: Daisuke KOREEDA, Koichi MARUYAMA, Shuichi TAKEUCHI
  • Publication number: 20080130465
    Abstract: There is provided an objective optical system which includes a chromatic aberration correction element having a negative power first lens and a positive power second lens, materials of the first and lenses being different from each other, the first and second lenses being cemented together via a cementing surface to correct a longitudinal chromatic aberration, at least one phase shift surface configured to give a predetermined optical path length difference to a first light beam, and an objective lens. Each of the chromatic aberration correction element and the at least one phase shift surface is located along an optical path common to the first and second light beams. The chromatic aberration correction element is located on a light source side with respect to the objective lens.
    Type: Application
    Filed: December 3, 2007
    Publication date: June 5, 2008
    Applicant: PENTAX CORPORATION
    Inventors: Daisuke KOREEDA, Shuichi TAKEUCHI
  • Publication number: 20080129303
    Abstract: When bonding a workpiece to a substrate, processed parts of the substrate and the workpiece are observed and behavior such as the production of voids and the flowing of resin is observed. An apparatus for observing an assembled state of components includes: a stage on which a substrate is set; a head mechanism that bonds, by applying heat and pressure, an observation workpiece made of a transparent material to the substrate via resin supplied between the substrate and the observation workpiece; a light source that irradiates an observed part of the substrate and the observation workpiece mounted on the stage with light; and a camera that takes, from the observation workpiece side, an image of the observed part when the observation workpiece is bonded to the substrate set on the stage.
    Type: Application
    Filed: August 31, 2007
    Publication date: June 5, 2008
    Applicant: FUJITSU LIMITED
    Inventors: Shuichi Takeuchi, Hidehiko Kira
  • Publication number: 20080089207
    Abstract: There is provided an objective lens used for an optical information recording/reproducing device for recording information to and/or reproducing information from two types of optical discs, by selectively using one of two types of substantially collimated light beams including first and second light beams. When wavelengths of the first and second light beams are respectively represented by ?1 (nm) and ?2 (nm), ?1<?2 is satisfied. The objective lens includes a first optical element, and a second optical element made of material different from that of the first optical element. The first and second optical elements are cemented via a cementing surface. Further, the objective lens is configured to satisfy a condition: 0.006 < { ( nR ? ? 2 - nR ? ? 1 ) - ( nB ? ? 2 - nB ? ? 1 ) } × ? [ { ( k ? ? 2 r ? ? 2 3 ) + 8 × A ? ? 42 } × f ? ? 1 3 + 2.29 ] < 0.
    Type: Application
    Filed: October 16, 2007
    Publication date: April 17, 2008
    Applicant: PENTAX CORPORATION
    Inventors: Daisuke KOREEDA, Shuichi TAKEUCHI