Patents by Inventor Haruhiko Fujisawa
Haruhiko Fujisawa 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).
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Patent number: 12009229Abstract: A laser beam irradiating unit of a laser processing apparatus includes a laser oscillator, a mirror configured to reflect a laser beam emitted from the laser oscillator and propagate the laser beam to a processing point, a power measuring unit configured to measure power of leakage light of the laser beam transmitted without being reflected by the mirror, and a condensing lens configured to condense the laser beam propagated by the mirror and irradiate a workpiece with the condensed laser beam. The control unit measures the power of the leakage light of the laser beam by the power measuring unit while irradiating the workpiece with the laser beam.Type: GrantFiled: August 26, 2020Date of Patent: June 11, 2024Assignee: DISCO CORPORATIONInventors: Hiroki Uryu, Seiji Miura, Haruhiko Asahi, Hisatoshi Fujisawa, Yoshiki Kobayashi, Hidenori Akamatsu
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Patent number: 9335160Abstract: According to one embodiment, a profile measuring apparatus comprises a profile measuring unit, a position acquiring unit, a profile calculating unit, a deflection detecting unit, and a controlling unit. The profile measuring unit has a projecting unit to project a pattern onto a measured object, and an imaging unit to image the pattern. The position acquiring unit acquires a position of the profile measuring unit. The profile calculating unit calculates a profile of the measured object, based on image information from the imaging unit and position information from the position acquiring unit. The deflection detecting unit detects deflection of the projecting unit. The controlling unit executes active correction for the profile measuring unit and/or passive correction for the profile calculating unit, based on the deflection of the projecting unit detected by the deflection detecting unit.Type: GrantFiled: April 26, 2011Date of Patent: May 10, 2016Assignee: NIKON CORPORATIONInventors: Yuka Ito, Haruhiko Fujisawa
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Publication number: 20150056474Abstract: A magnetic tape which comprises a nonmagnetic support, a magnetic layer which is formed on one surface of the nonmagnetic support, and a backcoat layer which comprises a binder and nonmagnetic powder containing carbon black as a component and which is formed on the other surface of the nonmagnetic support, having pits for optical servo formed thereon, characterized in that the average of the reflectance on the flat portion of the backcoat layer is 8.5% or higher, and that the maximum rate of fluctuation of the reflectance on the flat portion, depending on a position of the magnetic tape: [Maximum of absolute value of (Reflectance?Average reflectance)]×100/(Average reflectance) is 10% or lower. This magnetic tape is high in the initial S/N of the servo signal, and also high in the S/N of the servo signal found after the magnetic tape is run twice.Type: ApplicationFiled: October 31, 2014Publication date: February 26, 2015Applicant: HITACHI MAXELL, LTD.Inventors: Hiroyuki OTA, Haruhiko FUJISAWA, Naoki MUKAI, Satoru FUKIAGE, Kenji SANO, Shigeo FUJITANI
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Publication number: 20110270562Abstract: According to one embodiment, a profile measuring apparatus comprises a profile measuring unit, a position acquiring unit, a profile calculating unit, a deflection detecting unit, and a controlling unit. The profile measuring unit has a projecting unit to project a pattern onto a measured object, and an imaging unit to image the pattern. The position acquiring unit acquires a position of the pattern on the measured object. The profile calculating unit calculates a profile of the measured object, based on image information from the imaging unit and position information from the position acquiring unit. The deflection detecting unit detects deflection of the projecting unit. The controlling unit executes active correction for the profile measuring unit and/or passive correction for the profile calculating unit, based on the deflection of the projecting unit detected by the deflection detecting unit.Type: ApplicationFiled: April 26, 2011Publication date: November 3, 2011Applicant: Nikon CorporationInventors: Yuka Ito, Haruhiko Fujisawa
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Publication number: 20110254946Abstract: A surface inspection device (1) includes: a stage (10) for supporting a wafer (W); an illumination system (20) for illuminating with ultraviolet light a surface of the wafer (W) supported by the stage (10); a light reception system (30) for forming an image on a predetermined imaging surface with the light from the surface of the wafer (W); a camera unit (34) for capturing an image of the wafer (W) formed on the imaging surface by the light reception system (30); a pixel compensation drive unit (35) for performing pixel compensation; a control unit (40) for controlling the operation of the pixel compensation drive unit (35) and the camera unit (34) so that the camera unit (34) captures images of a plurality of wafers (W) while performing pixel compensation using the pixel compensation drive unit (35); and an image processing unit (45) for generating a synthesized image of the wafer (W) by successively arranging the pixels in the plurality of images captured by the camera unit (34) in the order based on the piType: ApplicationFiled: May 3, 2011Publication date: October 20, 2011Applicant: Nikon CorporationInventors: Kazuhiko FUKAZAWA, Kazuharu Minato, Haruhiko Fujisawa
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Publication number: 20100319728Abstract: A magnetic tape which comprises a nonmagnetic support, a magnetic layer which is formed on one surface of the nonmagnetic support, and a backcoat layer which comprises a binder and nonmagnetic powder containing carbon black as a component and which is formed on the other surface of the nonmagnetic support, having pits for optical servo formed thereon, characterized in that the average of the reflectance on the flat portion of the backcoat layer is 8.5% or higher, and that the maximum rate of fluctuation of the reflectance on the flat portion, depending on a position of the magnetic tape: [Maximum of absolute value of(Reflectance?Average reflectance)]×100/(Average reflectance) is 10% or lower. This magnetic tape is high in the initial S/N of the servo signal, and also high in the S/N of the servo signal found after the magnetic tape is run twice.Type: ApplicationFiled: August 24, 2010Publication date: December 23, 2010Inventors: Hiroyuki OTA, Haruhiko Fujisawa, Naoki Mukai, Satoru Fukiage, Kenji Sano, Shigeo Fujitani
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Patent number: 7803471Abstract: A magnetic tape which comprises a nonmagnetic support, a magnetic layer which is formed on one surface of the nonmagnetic support, and a backcoat layer which comprises a binder and nonmagnetic powder containing carbon black as a component and which is formed on the other surface of the nonmagnetic support, having pits for optical servo formed thereon, characterized in that the average of the reflectance on the flat portion of the backcoat layer is 8.5% or higher, and that the maximum rate of fluctuation of the reflectance on the flat portion, depending on a position of the magnetic tape: [Maximum of absolute value of (Reflectance?Average reflectance)]×100/(Average reflectance) is 10% or lower. This magnetic tape is high in the initial S/N of the servo signal, and also high in the S/N of the servo signal found after the magnetic tape is run twice.Type: GrantFiled: December 28, 2001Date of Patent: September 28, 2010Assignee: Hitachi Maxell, Ltd.Inventors: Hiroyuki Ota, Haruhiko Fujisawa, Naoki Mukai, Satoru Fukiage, Kenji Sano, Shigeo Fujitani
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Patent number: 4438468Abstract: A machine for transferring a plurality of tape cassettes one by one. A magazine container containing a plurality of tape cassettes in an aligned manner is set in a receiving part. The receiving part is reversed for discharging the tape cassettes simultaneously. A cassette transferring mechanism receives the discharged tape cassettes in an aligned condition, transferring the tape cassettes one by one towards a tape treating machine.Type: GrantFiled: May 19, 1981Date of Patent: March 20, 1984Assignee: Hitachi Maxell, Ltd.Inventors: Hideaki Kamei, Kazuhiko Yamanaka, Haruhiko Fujisawa, Shinichiro Oda