Patents by Inventor Takashi Fujita

Takashi Fujita 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: 20150099428
    Abstract: To stably perform cutting process even on a workpiece formed from a brittle material, in a ductile mode with high precision, without causing cracking and/or breaking in the workpiece. A dicing device which performs cutting process on a workpiece includes: a dicing blade that is formed into a discoid shape from a diamond sintered body formed by sintering diamond abrasive grains, and contains 80% or more of the diamond abrasive grains; a spindle (rotating mechanism) configured to rotate the dicing blade; and a movement mechanism configured to move the workpiece relatively to the dicing blade while forming a constant cut depth on the workpiece by the dicing blade.
    Type: Application
    Filed: December 12, 2014
    Publication date: April 9, 2015
    Inventors: Takashi Fujita, Junji Watanabe
  • Patent number: 8965138
    Abstract: In an image processing apparatus for encoding image data and a method of controlling the same, whether an attribute of each of a plurality of areas in image data corresponds to an edge in an image based on the image data is determined, and one of a plurality of sub-sampling processes is selected according to the determination for each of the plurality of areas. Note that the plurality of sub-sampling processes can sub-sample color difference components of each of the plurality of areas by different processes. By the sub-sampling process selected as that corresponding to each of the plurality of areas, each of the plurality of areas is sub-sampled to encode the image data.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: February 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yugo Mochizuki, Fumihiro Goto, Akihiko Nakatani, Okinori Tsuchiya, Takashi Nakamura, Takashi Fujita, Ayumi Sano, Mitsuhiro Ono, Hidetsugu Kagawa
  • Publication number: 20150035584
    Abstract: A driver may provide a transition of a switch between an on state and an off state in two stages. In the first stage, the voltage slew rate of the voltage at an output terminal of the switch may be controlled. In the second stage, the current gradient of the switch may be controlled. The transition between the first stage and the second stage may be made based on the value of the voltage at the output terminal of the switch.
    Type: Application
    Filed: August 2, 2013
    Publication date: February 5, 2015
    Applicant: Analog Devices Technology
    Inventor: Takashi FUJITA
  • Publication number: 20150036144
    Abstract: A rotation angle measurement device includes: relative angle detection means including a reference support whose rotation is regulated in a fixed range in an arbitrary direction of a rotation axis, and a driving rotating body which is coupled to the reference support and is axially supported so as to be all-round rotatable with respect to the reference support, the relative angle detection means which detects a relative rotation angle of the rotating body with respect to the reference support; and non-contact angle detection means which detects a rotation angle of the reference support with reference to a position that does not contact with the rotating body and the reference support. This provides improved accuracy in indexing the rotation angle of a rotating moving shaft and easy installation onto the rotating moving shaft.
    Type: Application
    Filed: February 12, 2013
    Publication date: February 5, 2015
    Applicant: Tokyo Seimitsu Co., Ltd.
    Inventors: Toru Shimizu, Nobuyuki Osawa, Takashi Fujita
  • Publication number: 20150022863
    Abstract: An image processing apparatus executes color conversion so that when printing is performed based on image data compressed and decompressed with a lossy compression method, the image data reproduces expected colors of the image data before compression. More specifically, a range of a signal value of a black image affected by compression of image data, such as black character to be printed with black ink, is obtained, and a color separation table is generated such that color ink is not used but black ink is used within this range. This allows the image data to reproduce expected colors of the image data before compression when printing is performed based on the image data compressed and decompressed with a lossy compression method.
    Type: Application
    Filed: July 11, 2014
    Publication date: January 22, 2015
    Inventors: Takashi Fujita, Hiroyuki Sakai, Tetsuya Suwa, Yusuke Hashii, Akitoshi Yamada, Masao Kato
  • Publication number: 20150015637
    Abstract: A check pattern is printed which makes it possible to detect, with high precision, individual patterns corresponding to nozzles of a print head of an inkjet printing apparatus. More specifically, after an alignment mark is printed, ejection of an ink from the nozzles is stopped for a certain time. Because of this stoppage time, the concentration of a coloring material of the ink ejected from the nozzles increases, whereby the optical density of an analysis pattern which is printed later can be increased. In this manner, a scanner can read, with high precision, the patterns corresponding to the nozzles.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 15, 2015
    Inventors: Tohru Ikeda, Akihiko Nakatani, Okinori Tsuchiya, Takashi Fujita, Hiromitsu Akiba, Takeru Sasaki
  • Publication number: 20150002569
    Abstract: In an inkjet printing apparatus, the colors of ink dots are controlled to make it possible to change the colors of an image to be printed. More specifically, ink temperatures, ink permeation speeds, and the capillary occupancy rates of inks in a print medium are used to control a permeation area formed by performing printing with preceding cyan and subsequent magenta, thereby controlling the colors realized by the inks which are ejected in an overlapping manner.
    Type: Application
    Filed: June 20, 2014
    Publication date: January 1, 2015
    Inventors: Okinori Tsuchiya, Tohru Ikeda, Akihiko Nakatani, Takashi Fujita, Hiromitsu Akiba, Takeru Sasaki
  • Publication number: 20140361718
    Abstract: According to one embodiment, there is provided a variable speed control apparatus applied to a variable speed system of secondary excitation including a double feed synchronous machine and a frequency converter. The variable speed control apparatus includes a secondary current controller configured to control an output current from the frequency converter, and a secondary current limiter configured to limit an effective component current command and a reactive component current command of a secondary current for the secondary current controller by using a given secondary current limit value and output a limited result to the secondary current controller.
    Type: Application
    Filed: May 19, 2014
    Publication date: December 11, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takahisa KAGEYAMA, Takashi FUJITA
  • Publication number: 20140349640
    Abstract: A REC device of a base station includes a switch instructing unit and an extension signal processor. The switch instructing unit monitors the state of the REC device, and based on a result of the monitoring, determines switching from the REC device to an extension REC device. When the switching is determined, the extension signal processor acquires a signal transmitted from the extension REC device, and requests the switching from the extension REC device. The extension REC device includes an extension signal processor and a digital processor. The extension signal processor receives the switch request from the extension signal processor of the REC device. In response to the received switch request, the digital processor sets the parameters of the REC device in the extension REC device, and establishes a link to a RE.
    Type: Application
    Filed: May 6, 2014
    Publication date: November 27, 2014
    Applicant: FUJITSU LIMITED
    Inventor: Takashi Fujita
  • Publication number: 20140331511
    Abstract: A contour and surface texture measuring instrument for measuring a contour and surface texture of a surface of a work W, whose configuration is simple and which can be implemented at a low cost, and which generates a displacement signal having a high resolution and high linearity in a wide measurement range is disclosed, the contour and surface texture measuring instrument having a measurement part 13 having a probe 13 configured to come into contact with the surface of the work W and to change its position vertically, a feed mechanism 14 configured to relatively move the work with respect to the probe, an arm 12 having the measurement part at one end and configured to transfer a displacement of the probe and to rotate with a pivot 16 as a center, and a differential transformer-type detection mechanism 51 and a scale-type detection mechanism 52 attached to the arm or a position interlocked with the arm and configured to detect a displacement of the probe.
    Type: Application
    Filed: December 10, 2012
    Publication date: November 13, 2014
    Inventors: Yasuhiro Yamauchi, Takashi Fujita
  • Publication number: 20140261906
    Abstract: A bearing steel includes, as a metallographic structure, inclusions which contain complex oxysulfides including Rare Earth Metal, Ca, O, S, and Al, TiN, MnS, Al2O3, and complex oxides including Al and Ca, wherein, a number fraction of the complex oxysulfides in a total number of the inclusions is 50% to less than 100% and a number of complex oxysulfides having a major axis of 5 ?m or more is 0.001 pieces to 2 pieces in an observed section of 1 mm2, and a number of TiN existing independently from the complex oxysulfides and having a major axis of 5 ?m or more is 0.001 pieces to less than 1.0 piece in an observed section of 1 mm2.
    Type: Application
    Filed: October 5, 2012
    Publication date: September 18, 2014
    Inventors: Masayuki Hashimura, Masafumi Miyazaki, Hideaki Yamamura, Takahisa Suzuki, Takashi Fujita
  • Patent number: 8830530
    Abstract: Provided is an image processor and image processing method that are capable of suppressing both density unevenness and graininess that occur due to deviation of the printing position of dots that are printed by a plurality of relative movements (or a plurality of printing element groups). In order to accomplish this, the dot overlap rate of an image characteristic in which density unevenness stands out is made higher than the dot overlap rate of an image characteristic in which other defects stand out more than the density unevenness. By doing so, it is possible to suitably adjust the dot overlap rate according to an image characteristic, and to output an image having no density unevenness or graininess.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: September 9, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ayumi Sano, Fumihiro Goto, Akitoshi Yamada, Akihiko Nakatani, Mitsuhiro Ono, Fumitaka Goto, Okinori Tsuchiya, Takashi Fujita, Rie Kajihara, Tomokazu Ishikawa
  • Patent number: 8811880
    Abstract: The processing apparatus includes: a first storage device that stores correction image information defining a correction image Ap formed on the surface of a to-be-processed medium S, in which the positional relationship relative to an output image formed on the surface of the to-be-processed medium S is known; a second storage device that stores processing area information defining an area of the surface of the to-be-processed medium S heated by a heating unit, in which the positional relationship with the output image formed on the surface of the to-be-processed medium S is known; and a control unit that uses a detection result of a correction image formed on the surface of the to-be-processed medium S detected by an image detection unit and the correction image information to correct a heating position on the surface of the to-be-processed medium S heated by the heating unit indicated by the processing area information.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: August 19, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takashi Fujita
  • Publication number: 20140227001
    Abstract: A fixing device includes a rotatable fixing member to rotate while contacting an unfixed image; a pressure member to form a fixing nip with the fixing member; a heating member having a plurality of heating elements divided in a direction perpendicular to a conveyance direction of a sheet; a heat performance sensor to detect heating performance of each heating element of the heating member, and an controller to control the heating member. The controller controls each heating element independently such that a temperature of a portion of the fixing member corresponding to a blank area becomes lower than the temperature of a portion of the fixing member corresponding to an image area; and controls the temperature to be maintained at each heating element based on the detection result of the heating performance of each heating element detected by the heat performance sensor.
    Type: Application
    Filed: February 6, 2014
    Publication date: August 14, 2014
    Inventors: Kazuhito KISHI, Takumi Waida, Masahiro Samei, Hiroshi Ono, Takeshi Yamamoto, Ippei Fujimoto, Hiroshi Seo, Ryota Yamashina, Yasunori Ishigaya, Takashi Fujita
  • Patent number: 8764152
    Abstract: An image processing apparatus and an image processing method are provided which, when forming an image using a plurality of different inks, can produce a satisfactory image free from problematical levels of density unevenness, graininess and insufficient density with any of these inks. To this end, when printing on pixel areas of a print medium by a plurality of relative movements between the printing unit and the print medium, the dot overlap rate of an ink that tends to show density unevenness is set higher than that of an ink that tends to show other image impairments more conspicuously than the density unevenness. This results in a good image that eliminates such image impairments as density unevenness, graininess and density insufficiency in the entire color gamut.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: July 1, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Fumitaka Goto, Fumihiro Goto, Akitoshi Yamada, Akihiko Nakatani, Mitsuhiro Ono, Okinori Tsuchiya, Takashi Fujita, Rie Kajihara, Ayumi Sano, Tomokazu Ishikawa
  • Publication number: 20140135205
    Abstract: A solid catalyst component for olefin polymerization and a catalyst are disclosed that exhibit high catalytic activity when used for gas-phase polymerization, suppress rapid reactions in the initial stage of polymerization relative to the polymerization activity, and can produce a propylene polymer in high yield while maintaining high stereoregularity. The solid catalyst component for olefin polymerization includes magnesium, titanium, a halogen, and an internal electron donor, the solid catalyst component including an asymmetrical phthalic diester represented by the following general formula (1) in a molar ratio of 0.2 to 0.8 relative to the total content of the internal electron donor.
    Type: Application
    Filed: May 31, 2012
    Publication date: May 15, 2014
    Applicant: TOHO TITANIUM CO., LTD.
    Inventors: Kunihiko Tashino, Takashi Fujita, Toshiya Uozumi, Yuta Haga
  • Patent number: 8699936
    Abstract: According to the present invention, skew feeding of a sheet is corrected while conveying the sheet, positioning of a side edge of the sheet in the width direction is carried out, and an image is formed on the sheet by an image forming portion 90. Two steering mechanisms 120a and 120b are disposed upstream of the image forming portion along the conveying direction, and the steering mechanisms 120a and 120b can feed a sheet on the skew in any direction with respect to the sheet conveying direction. Two CISs 100a and 100b are disposed along the sheet conveying direction corresponding to the steering mechanisms. A skew feeding angle and a skew feeding velocity of each of the steering mechanisms is changed according to differential value between a side edge position detected by the CISs 100a and 100b and a target position of a side edge of a sheet.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: April 15, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takashi Fujita
  • Patent number: 8690509
    Abstract: An article storage facility includes a storage rack that includes a plurality of storage units that store articles; a first article transport that includes a first vertically movable body guided by a first vertical guide and a first transit body configured to move along a path defined along the storage rack, the first vertical guide being provided in the first article transport so as to be positioned on one side of a lateral direction of the path; and a second article transport that includes a second vertically movable body guided by a second vertical guide and a second transit body configured to move along the path, the second vertical guide being provided in the second article transport so as to be positioned on the other lateral side of the path. The first transit body and the second transit body are configured so as to be able to pass each other.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: April 8, 2014
    Assignee: Daifuku Co., Ltd.
    Inventors: Kazushi Tsujimoto, Yuichi Ueda, Takashi Fujita
  • Publication number: 20140079532
    Abstract: In one embodiment, a hydraulic machine includes a runner including a plurality of blades arranged in a ring shape, a crown connected to the blades from an upper side and having a lower end surface at a position surrounded by the blades, and a band connected to the blades from a lower side, the runner being configured to convert energy of pressured water into rotational energy. The machine further includes a main shaft configured to transmit the rotational energy of the runner to a generator, and a draft pipe located downstream of the runner, and configured so that the water used to drive the runner flows into the draft pipe. The machine further includes a columnar member disposed on a rotation axis of the main shaft below the crown, and having a diameter smaller than a diameter of the lower end surface of the crown.
    Type: Application
    Filed: August 27, 2013
    Publication date: March 20, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Sadao KUROSAWA, Toshifumi Kurokawa, Takashi Fujita
  • Publication number: 20140010415
    Abstract: An image processing apparatus comprises, a management unit configured to classify a face feature information of a face region of an object extracted from image data into a predetermined category in accordance with similarity, and manage the face feature information in a dictionary, a condition setting unit configured to set category determination conditions for classifying the face feature information into the category in accordance with individual information representing at least one of an age and sex of the object and a determination unit configured to determine, based on the category determination conditions set by the condition setting unit, a category to which the face feature information belongs in the dictionary.
    Type: Application
    Filed: June 19, 2013
    Publication date: January 9, 2014
    Inventors: Hiroyasu Kunieda, Tetsuya Suwa, Takashi Nakamura, Takashi Fujita, Kiyoshi Umeda, Yusuke Hashii, Hiroyuki Sakai, Naoki Sumi