Patents by Inventor Masatoshi Ishikawa

Masatoshi Ishikawa 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: 10481381
    Abstract: An object of the present invention is to widen a range in which line of sight change is possible, particularly in a pan direction. According to the present invention it is possible to acquire high line of sight changing speed. A pan mirror is capable of rotation in forward and reverse directions about a third rotational axis. Also, the third rotational axis extends in a direction that is substantially parallel to a line of sight direction directed from a tilt direction control section to the pan mirror. An angle ? formed by the pan mirror and the third rotational axis is set in a range 0°<?<90°. The tilt direction control section can scan line of sight direction with respect to a virtual plane formed by a rotation locus of the pan mirror. The tilt direction control section can also control tilt angle of the line of sight direction from the pan mirror to a physical object.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: November 19, 2019
    Assignee: The University of Tokyo
    Inventors: Hiromasa Oku, Masatoshi Ishikawa, Koseki Kobayashi
  • Patent number: 10423107
    Abstract: An object of the present invention is to provide a polyimide tube for a fixing belt, the polyimide tube having good toner fixability. A polyimide tube for a fixing belt of an image-forming apparatus according to the present invention includes a polyimide layer that contains a polyimide as a main component and a needle-like filler, the needle-like filler containing a carbon nanotube and needle-like titanium oxide. A product of a thermal diffusivity (m2/s) of the polyimide layer and a breaking elongation (%) of the polyimide layer in an axial direction is 35×10?7 or more. An orientation direction of the needle-like filler is preferably an axial direction or a circumferential direction.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: September 24, 2019
    Assignees: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC FINE POLYMER, INC.
    Inventors: Shingo Nakajima, Jun Sugawara, Masatoshi Ishikawa, Yoshitaka Ikeda, Kazuhiro Kizawa
  • Publication number: 20190228497
    Abstract: To perform inter-pixel image processing with lower latency and higher speed. An image sensor includes: a pixel array unit in which pixels having a photoelectric conversion function are arranged in an array; an AD conversion unit configured to perform AD conversion processing on pixel signals output from the pixels in parallel for each column of the pixels of the pixel array unit; a memory unit configured to hold pixel signals of any number of rows subjected to AD conversion in the AD conversion unit for each column of the pixels; an inter-pixel image processing unit configured to read pixel signals of any rows and columns from the memory unit, and perform computing between the pixel signals in parallel for each column of the pixels; and an output circuit configured to control output, to an outside, of pixel signals output from the AD conversion unit and pixel signals output from the inter-pixel image processing unit. The present technology can be applied to, for example, a CMOS image sensor.
    Type: Application
    Filed: August 23, 2017
    Publication date: July 25, 2019
    Applicants: SONY CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Yoshinori MURAMATSU, Shuji UEHARA, Hironobu KATAYAMA, Tomohiro YAMAZAKI, Masatoshi ISHIKAWA, Yoshihiro WATANABE
  • Publication number: 20190206022
    Abstract: [Object] To reduce a scale of an arithmetic processing unit which performs an arithmetic process between frames in a sensor. [Solution] A frame memory stores pixel data of a frame that transitions in time sequence. An inter-frame arithmetic processing unit implements a predetermined arithmetic by column parallel in a row unit on the pixel data of a current frame and the pixel data of a past frame stored in the frame memory and updates the pixel data of the past frame stored in the frame memory on the basis of a result of the predetermined arithmetic.
    Type: Application
    Filed: August 23, 2017
    Publication date: July 4, 2019
    Inventors: Hironobu KATAYAMA, Shuji UEHARA, Yoshinori MURAMATSU, Tomohiro YAMAZAKI, Yoshihiro WATANABE, Masatoshi ISHIKAWA
  • Publication number: 20190134510
    Abstract: A video game processing program product for causing a server to realize functions to control progress of a video game is provided. The functions include: a function to generate content in which at least one of the user or a character operated by the user is allowed to participate, in a case where a predetermined condition is satisfied; a function to store the number of participants who participate in first content and a clear time indicating a time required to clear the first content in a predetermined storage medium; a function to set up the degree of difficulty for second content indicating content to be generated newly; and a function to detect whether a generation condition contained in the predetermined condition to generate the second content is satisfied or not. The generating function includes a function to generate the second content with the degree of difficulty thus set up.
    Type: Application
    Filed: January 2, 2019
    Publication date: May 9, 2019
    Applicant: KABUSHIKI KAISHA SQUARE ENIX (also trading as SQUARE ENIX CO., LTD.)
    Inventors: Mitsutoshi GONDAI, Masatoshi ISHIKAWA, Tsuyoshi YOKOZAWA, Takashi SUGI
  • Publication number: 20190136383
    Abstract: The present invention provides a chemical conversion liquid for zinc or zinc alloy bases, which contains 2-200 mmol/L of trivalent chromium ions, 1-300 mmol/L of zirconium ions and at least one component selected from among fluorine ions, a water-soluble carboxylic acid and a salt thereof, and which does not contain Co ions and hexavalent chromium ions.
    Type: Application
    Filed: December 25, 2015
    Publication date: May 9, 2019
    Inventors: Ayumi SAITO, Masatoshi ISHIKAWA, Takashi KOIKE
  • Patent number: 10201759
    Abstract: A video game processing program product for causing a server to realize functions to control progress of a video game is provided. The functions include: a function to generate content in which at least one of the user or a character operated by the user is allowed to participate, in a case where a predetermined condition is satisfied; a function to store the number of participants who participate in first content and a clear time indicating a time required to clear the first content in a predetermined storage medium; a function to set up the degree of difficulty for second content indicating content to be generated newly; and a function to detect whether a generation condition contained in the predetermined condition to generate the second content is satisfied or not. The generating function includes a function to generate the second content with the degree of difficulty thus set up.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: February 12, 2019
    Assignee: KABUSHIKI KAISHA SQUARE ENIX
    Inventors: Mitsutoshi Gondai, Masatoshi Ishikawa, Tsuyoshi Yokozawa, Takashi Sugi
  • Patent number: 10144406
    Abstract: A power transmission apparatus that is mountable on a vehicle includes a planetary gear mechanism, a first motor generator, a second motor generator, and a stepped automatic transmission with parallel gears. The first motor generator and an output side shaft of the stepped automatic transmission are configured to be coupled to a power input shaft from an engine provided in the vehicle via the planetary gear mechanism. An input side shaft of the stepped automatic transmission is configured to be coupled to the power input shaft. The second motor generator is coupled to the output side shaft of the stepped automatic transmission.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: December 4, 2018
    Assignee: SUBARU CORPORATION
    Inventor: Masatoshi Ishikawa
  • Patent number: 10142601
    Abstract: An object of the present invention is to provide a device that is capable of presenting image information that is larger than an object by irradiating light onto the object that moves on a trajectory that is not known. An object tracking section controls line of sight direction so as to be directed towards a moving object. A rendering section irradiates a light beam in a direction along the line of sight direction. In this way the rendering section can irradiate the light beam onto the surface of the object. It is possible to present information, that has been rendered in a range that is larger than the surface area of the object, to an observer, utilizing an after image of the light beam that has been irradiated on the surface of the object.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: November 27, 2018
    Assignee: The University of Tokyo
    Inventors: Hiromasa Oku, Alvaro Cassinelli, Masahiko Yasui, Masatoshi Ishikawa
  • Publication number: 20180314058
    Abstract: Controlling the position of a light beam uses a dielectric elastomer itself as an optical element. By controlling the position of a light beam, it is possible to maintain high resolution, even where an object is at a distance. The main body is constituted by a dielectric elastomer. This dielectric elastomer is made substantially transparent to a light beam that is an object of control. The dielectric elastomer is made to have a refractive index that is different than a refractive index of a medium that exists around the main body and that the light beam will pass through. The feed section is configured to cause a change in the thickness of the main body by applying a voltage to the main body.
    Type: Application
    Filed: September 6, 2016
    Publication date: November 1, 2018
    Inventors: Masatoshi Ishikawa, Lihui Wang, Tomohiko Hayakawa
  • Publication number: 20180283851
    Abstract: The present invention relates to technology for detecting three-dimensional motion of an object in a non-contact manner, at high speed, and with comparatively high precision. A speed detection section 11 detects speed of an object using a first laser beam 111 that is irradiated towards an object 100, and is reflected by the object 100. A distance detection section 12 detects speed of the object 100 using a second laser beam 121 that is irradiated towards the object 100, and is reflected by the object 100. The second laser beam 121 is configured to be irradiated at substantially the same time and to substantially the same position as the first laser beam 111. A motion calculation section 13 calculates motion of the object 100 using information on orientation of the first and second laser beams, the speed, and the distance.
    Type: Application
    Filed: August 26, 2016
    Publication date: October 4, 2018
    Applicant: THE UNIVERSITY OF TOKYO
    Inventors: Yoshihiro Watanabe, Leo Miyashita, Ryota Yonezawa, Masatoshi Ishikawa
  • Publication number: 20180252094
    Abstract: A control system for subsea, subsurface fluid operations that includes a controller; a subsea oil-water separator device that is in fluid communication with a water production flowline; and a subsea, subsurface fluid analyzer that analyzes fluid in the water production flowline, where the subsea, subsurface fluid analyzer includes a light source, an optical diverter that diverts a first portion of light emitted by the light source to fluid of the water production flowline and that passes a second portion of light emitted by the light source to fluid of the water production flowline, and one or more image sensors that generate images based on at least one of the first portion of light and the second portion of light, where the controller issues signals that control flow of the fluid in the water production flowline based at least in part on one or more of the generated images.
    Type: Application
    Filed: May 4, 2018
    Publication date: September 6, 2018
    Inventors: Theodorus Tjhang, Tsutomu Yamate, Osamu Osawa, Masatoshi Ishikawa, Yoshihiro Watanabe
  • Patent number: 9924104
    Abstract: This invention provides a technology that allows the acquisition of background differentials using images acquired by a camera, the viewpoint of which moves. First, said camera acquires a background image, i.e. an image that does not contain a target object. Using information on the line-of-sight direction and viewpoint position of the camera, position information for pixels in the background image is transformed to polar-coordinate information Next, the camera acquires an object image. Using information on the line-of-sight direction and viewpoint position of the camera, position information for pixels in the object image is transformed to polar-coordinate information. The polar-coordinate information for the pixels in the object image is used to identify a target background, said target background being the part of the background image in an angle region corresponding to the object image. By comparing the object image and the target background, the differential therebetween is extracted.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: March 20, 2018
    Assignee: The University of Tokyo
    Inventors: Hiromasa Oku, Keiko Yokoyama, Masatoshi Ishikawa
  • Publication number: 20180029584
    Abstract: A power transmission apparatus that is mountable on a vehicle includes a planetary gear mechanism, a first motor generator, a second motor generator, and a stepped automatic transmission with parallel gears. The first motor generator and an output side shaft of the stepped automatic transmission are configured to be coupled to a power input shaft from an engine provided in the vehicle via the planetary gear mechanism. An input side shaft of the stepped automatic transmission is configured to be coupled to the power input shaft. The second motor generator is coupled to the output side shaft of the stepped automatic transmission.
    Type: Application
    Filed: May 15, 2017
    Publication date: February 1, 2018
    Inventor: Masatoshi ISHIKAWA
  • Patent number: 9874082
    Abstract: Downhole imaging systems and methods are disclosed herein. An example method includes projecting flushing fluid into an optical field of view of an imaging system disposed on a downhole tool. The example method also includes directing a pattern of light onto a target in the optical field of view via a light source of the imaging system and determining three-dimensional shape information of the target based on the light directed from the target and received via an image detection plane of the imaging system. The example method further includes determining a characteristic of the target based on the three-dimensional shape information.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: January 23, 2018
    Assignees: SCHLUMBERGER TECHNOLOGY CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Theodorus Tjhang, Bonnie Powell, Yutaka Imasato, Yoshihiro Watanabe, Masatoshi Ishikawa
  • Patent number: 9787886
    Abstract: A blurless image capturing system sequentially acquires images with little blur, even in a situation where a camera moves. An image capturing camera unit and a mirror unit are both capable of continuous movement in at least a one-dimensional direction. The image capturing camera unit acquires an image of a physical object present within an object region by directing line of sight direction towards the object region by means of the mirror unit. The mirror body changes the line of sight from the image capturing camera unit. The drive unit changes an angle of the mirror body in a given angular velocity in accordance with movement of the image capturing camera unit and the mirror body In this way it is possible to keep the line of sight from the image capturing camera unit directed towards a physical object for a given time. The drive unit directs the line of sight from the image capturing camera unit towards another object region by driving the mirror body. The control unit controls operation of the drive unit.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: October 10, 2017
    Assignee: The University of Tokyo
    Inventors: Masatoshi Ishikawa, Hiromasa Oku, Tomohiko Hayakawa
  • Patent number: 9719342
    Abstract: Drill bit assembly imaging systems and methods are disclosed herein. An example method disclosed herein includes directing light conveying an image of a target through a portion of a drill bit assembly and capturing the image via an image sensor disposed inside the drill bit assembly. The example method also include determining drilling information based on the image via an image processor disposed inside the drill bit assembly.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: August 1, 2017
    Assignees: SCHLUMBERGER TECHNOLOGY CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Theodorus Tjhang, Masatoshi Ishikawa
  • Patent number: 9670775
    Abstract: Example systems described herein to perform downhole fluid analysis include a depressurizer to be positioned downhole in a geological formation to depressurize a formation fluid in the geological formation. In such example systems, the depressurization of the formation fluid is to cause bubbles to nucleate in the formation fluid. Such example systems also include an imaging processor to be positioned downhole in the geological formation. In such example systems, the imaging processor is to capture imaging data associated with the formation fluid and to detect nucleation of the bubbles in the formation fluid based on the imaging data. Such example systems further include a controller to report measurement data via a telemetry communication link to a receiver to be located outside the geological formation. In such example systems, the measurement data includes a bubble point of the formation fluid calculated based on the detected nucleation of the bubbles.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: June 6, 2017
    Assignees: SCHLUMBERGER TECHNOLOGY CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Theodorus Tjhang, Masatoshi Ishikawa
  • Publication number: 20170082957
    Abstract: An object is to provide a self-heat-generating fixing roller that has a simple structure and good durability and that can be easily produced. A self-heat-generating fixing roller according to an embodiment of the present invention includes a columnar core bar, a heat-insulating layer stacked on an outer circumferential side of the core bar, a heat-generating layer stacked on an outer circumferential side of the heat-insulating layer and heated by supplying electricity, and a mold-releasing layer stacked on an outer circumferential side of the heat-generating layer. The heat-insulating layer preferably contains a matrix containing a synthetic resin or rubber as a main component, and a plurality of pores contained in the matrix. The heat-generating layer preferably contains a matrix containing a synthetic resin or rubber as a main component, and a plurality of electrically conductive fillers contained in the matrix.
    Type: Application
    Filed: November 3, 2015
    Publication date: March 23, 2017
    Inventors: Shingo NAKAJIMA, Jun SUGAWARA, Yoshitaka IKEDA, Masato TANAKA, Masatoshi ISHIKAWA
  • Patent number: 9584711
    Abstract: Imaging methods and systems for controlling equipment in remote environments are disclosed herein. An example system disclosed herein to control equipment in a remote environment includes an imaging assembly to determine feedback data based on measurement data obtained from a plurality of remote imaging systems controllable to process different respective optical fields-of-view in the remote environment, a flushing assembly controllable to project fluid to clear the optical fields-of-view in the remote environment, and a controller to process the feedback data to determine a control signal to control operation of at least one of (1) the plurality of remote imaging systems or (2) the flushing assembly.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: February 28, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Theodorus Tjhang, Masatoshi Ishikawa