Patents by Inventor Hiroyuki Yamazaki

Hiroyuki Yamazaki 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: 9442248
    Abstract: The present invention provides a polarization beam combiner/splitter, a polarization beam combining/splitting structure, a light mixer, an optical modulator module, and a method for manufacturing a polarization beam combiner/splitter with suitable polarization beam combining/splitting characteristics. In the polarization beam combiner/splitter, a polarization beam combining/splitting film is placed on a substrate and allows TE light to pass through and causes TM light to branch off. A first optical waveguide is formed on the substrate with an end surface facing a first surface of the polarization beam combining/splitting film and with a waveguide direction coinciding with a propagation direction of the TE light. A second optical waveguide is formed on the substrate with an end surface facing a second surface of the polarization beam combining/splitting film and with a waveguide direction coinciding with a propagation direction of the TM light.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: September 13, 2016
    Assignee: NEC CORPORATION
    Inventor: Hiroyuki Yamazaki
  • Patent number: 9436147
    Abstract: An edge counter counts the number of edges satisfying a predetermined condition to provide an edge count. A pixel counter counts the number of pixels satisfying a predetermined condition to provide a pixel count. An image determination unit and a toner amount acquisition unit obtain a toner consumption amount based on the edge count and the pixel count for each area.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: September 6, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroyuki Yamazaki
  • Publication number: 20160230663
    Abstract: A gas turbine equipped with a compressor, a combustion chamber and a turbine is further equipped with: a pressurizing device for taking a portion of the compressed air compressed by the compressor, and pressurizing the compressed air; a combustion chamber cooling line for cooling the combustion chamber using the pressurized compressed air; a temperature regulating line for regulating the temperature of a stationary member of a blade ring or the like of a turbine by using the pressurized compressed air; a combustion chamber supply line through which the compressed air flows from the pressurizing device to the combustion chamber cooling line; a turbine supply line through which the compressed air flows from the pressurizing device to the temperature regulating line; a heater for heating the compressed air, provided in the turbine supply line; and a control device capable of controlling the heater.
    Type: Application
    Filed: September 19, 2014
    Publication date: August 11, 2016
    Inventors: Satoshi MIZUKAMI, Yoshiaki YAMAGUCHI, Tetsu KONISHI, Toshio TAKANEZAWA, Hiroyuki YAMAZAKI
  • Patent number: 9361025
    Abstract: According to one embodiment, an information processing apparatus includes first, second, and third display controllers. The first display controller displays first information representing a storage device. The second display controller displays second information representing partitions of the storage device, if the one of the storage device is selected based on the first information. The third display controller displays third information representing a data file of the storage device.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: June 7, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yinghsiang Wen, Hiroyuki Yamazaki
  • Publication number: 20160067843
    Abstract: An electronic grade glass substrate is provided with a recess, channel or step in one surface, and a first chamfer between the side surface of the recess, channel or step and the one surface. The side and bottom surfaces of the recess, channel or step are mirror finished, and the first chamfer is mirror finished.
    Type: Application
    Filed: November 3, 2015
    Publication date: March 10, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Daiyu Okafuji, Hiroyuki Yamazaki, Masaki Takeuchi
  • Patent number: 9281901
    Abstract: A planar lightwave circuit includes a substrate in which a groove being formed, the groove dividing the substrate into a first area and a second area; a first filter, a second filter, and a third filter intruded into the groove; as are formed in the first area, a first and a second waveguides formed to guide signal light and local oscillation light; a third and a fourth waveguides formed to guide signal light and local oscillation light; a first 90-degree optical hybrid; as are formed in the second area, a fifth and sixth waveguides formed to guide signal light and local oscillation light; and a second 90-degree optical hybrid.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: March 8, 2016
    Assignee: NEC Corporation
    Inventor: Hiroyuki Yamazaki
  • Publication number: 20160052193
    Abstract: A rectangular substrate is prepared by providing a starting rectangular substrate having front and back surfaces and four side surfaces as ground, and pressing a rotary polishing pad perpendicularly against one side surface under a constant pressure, and relatively moving the rotary polishing pad and the substrate parallel to the side surface, for thereby polishing the side surface of the substrate. In the imprint lithography, the rectangular substrate is capable of controlling compression and pattern shape at a high accuracy and thus transferring a complex pattern of fine feature size to a recipient.
    Type: Application
    Filed: August 18, 2015
    Publication date: February 25, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Daiyu Okafuji, Hiroyuki Yamazaki, Masao Ando, Masaki Takeuchi
  • Publication number: 20150372453
    Abstract: It is provided that an optical functional integrated unit and a method for manufacturing thereof in which a positive optical device and a passive optical device including a silicon waveguide can be readily integrated. An optical functional integrated unit includes a semiconductor optical amplifier, a photonics device, a mounting board, pedestals and. The pedestals and are provided on the mounting board. The semiconductor optical amplifier is mounted on the pedestal and outputs a light from an active layer. The photonics device is mounted on the pedestal. The photonics device includes silicon waveguide to which the light output from the semiconductor optical amplifier is guided.
    Type: Application
    Filed: October 25, 2013
    Publication date: December 24, 2015
    Inventor: Hiroyuki YAMAZAKI
  • Patent number: 9205528
    Abstract: An electronic grade glass substrate is provided with a recess, channel or step in one surface, and a first chamfer between the side surface of the recess, channel or step and the one surface. The side and bottom surfaces of the recess, channel or step are mirror finished, and the first chamfer is mirror finished.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: December 8, 2015
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Daiyu Okafuji, Hiroyuki Yamazaki, Masaki Takeuchi
  • Publication number: 20150301498
    Abstract: An image forming apparatus includes a fixing unit that fixes an image, an obtaining unit that obtains information regarding conveying time taken to convey a recording material, a detection unit that detects information regarding an environment, and a control unit configured to determine, based on the information regarding the conveying time and the information regarding the environment, a timing at which the fixing unit is replaced.
    Type: Application
    Filed: April 14, 2015
    Publication date: October 22, 2015
    Inventors: Toshifumi Kitamura, Satoru Taniguchi, Wataru Uchida, Hiroyuki Yamazaki
  • Publication number: 20150239360
    Abstract: A charging portion for a vehicle is removably connected to a charging connector connected to an external power supply. The charging portion for a vehicle includes a lid box fixed to a body of the vehicle, an inlet provided to pass through the lid box, a terminal accommodated in the inlet, a wire connected to the terminal, and drawn from an end of the inlet located inside the vehicle, and a fixing member that fixes the wire to the end of the inlet. The wire is fixed to the end of the inlet using the fixing member.
    Type: Application
    Filed: January 29, 2015
    Publication date: August 27, 2015
    Inventors: Masaru Sasaki, Hiroyuki Yamazaki, Eiji Kitano
  • Publication number: 20150239359
    Abstract: A vehicle charging unit includes a lid box inserted into a first hole in the body of a vehicle from outside of the vehicle and attached to the body, and an inlet fixed to the lid box. The lid box includes an attachment portion, a bottom having a second hole formed therein, and a sidewall. The bottom has a stud bolt protruding toward inside of the vehicle in a state in which the lid box is attached to the body. The inlet includes a barrel portion capable of receiving a charge connector from outside of the vehicle and a collar portion positioned around the barrel portion. The barrel portion is inserted into the second hole from inside of the vehicle and the collar portion is fixed with the stud bolt, whereby the inlet is fixed to the lid box.
    Type: Application
    Filed: January 23, 2015
    Publication date: August 27, 2015
    Inventors: Masaru SASAKI, Hiroyuki YAMAZAKI, Eiji KITANO
  • Publication number: 20150227101
    Abstract: An image forming apparatus includes a detection unit that detects information about a used amount of a unit, and a control unit that outputs information indicating that the unit is required to be replaced when the information about the detected used amount reaches a first predetermined threshold value, wherein the control unit changes the threshold value to a second threshold value according to information about the used amount when the unit is replaced.
    Type: Application
    Filed: February 4, 2015
    Publication date: August 13, 2015
    Inventors: Wataru Uchida, Satoru Taniguchi, Hiroyuki Yamazaki, Toshifumi Kitamura
  • Publication number: 20150220035
    Abstract: An edge counter counts an edge count that is the number of edges satisfying a predetermined condition. A pixel counter counts a pixel count that is the number of pixels satisfying a predetermined condition. An image determination unit and a toner amount acquisition unit obtain a toner consumption amount based on the edge count and the pixel count for each area.
    Type: Application
    Filed: January 29, 2015
    Publication date: August 6, 2015
    Inventor: Hiroyuki Yamazaki
  • Patent number: 9090502
    Abstract: A nanoimprint-mold release agent including an alkoxysilane compound represented by general formula (1) is provided wherein Rf and Rf? are each independently a fluoroalkyl group of 1 to 10 carbon atoms; R1 is a hydrogen atom or an aliphatic monovalent hydrocarbon group of 1 to 6 carbon atoms; R2 and R3 are each independently methyl group or ethyl group; X and Y are each independently an ether linkage or an ester linkage; a and b are each 0 or 1; m, n, and p are each an integer of 0 to 6; q is an integer of 1 to 6 and r is an integer of 0 to 2.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: July 28, 2015
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroyuki Yamazaki, Daijitsu Harada, Masaki Takeuchi, Takayuki Honma, Ayumu Kiyomori, Tohru Kubota
  • Patent number: 9017143
    Abstract: An electronic grade synthetic quartz glass substrate is manufactured by machining a synthetic quartz glass substrate to form a recess, channel or step and polishing the bottom and side surfaces of the recess, channel or step to mirror finish by a working portion of a rotary polishing tool while keeping the working portion in contact with the bottom and side surfaces under independent constant pressures.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: April 28, 2015
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Daiyu Okafuji, Masaki Takeuchi, Hiroyuki Yamazaki
  • Patent number: 9017144
    Abstract: An electronic grade synthetic quartz glass substrate having a recess, channel or step is manufactured by machining at least one surface of a synthetic quartz glass substrate having a maximum birefringence of up to 3 nm/cm in its entirety to form a recess, channel or step, and removing the residual stress due to machining.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: April 28, 2015
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Daiyu Okafuji, Masaki Takeuchi, Hiroyuki Yamazaki
  • Publication number: 20150078749
    Abstract: A planar lightwave circuit includes a substrate in which a groove being formed, the groove dividing the substrate into a first area and a second area; a first filter, a second filter, and a third filter intruded into the groove; as are formed in the first area, a first and a second waveguides formed to guide signal light and local oscillation light; a third and a fourth waveguides formed to guide signal light and local oscillation light; a first 90-degree optical hybrid; as are formed in the second area, a fifth and sixth waveguides formed to guide signal light and local oscillation light; and a second 90-degree optical hybrid.
    Type: Application
    Filed: February 18, 2013
    Publication date: March 19, 2015
    Applicant: NEC CORPORATION
    Inventor: Hiroyuki Yamazaki
  • Patent number: 8982442
    Abstract: A wavelength selective polarization controller capable of controlling the polarization plane of optical wavelength multiplexing signals, for each wavelength component, and which does not generate time lag between each component is provided. This wavelength selective polarization controller has: a telecentric optical system to which optical wavelength multiplexing signals are incident; a polarization controller that controls the polarization plane of light output from the telecentric optical system; and an output optical system for outputting to an optical path output from the polarization controller. The telecentric optical system has: a first diffraction grating to which the optical wavelength multiplexing signals are incident; and a first condenser that condenses the optical wavelength multiplexing signals that have passed through the diffraction grating. The polarization controller has a plurality of phase modulators.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: March 17, 2015
    Assignees: National Institute of Information and Communications Technology, Optoquest Co., Ltd.
    Inventors: Naoya Wada, Seitetsu Boku, Hiroyuki Yamazaki, Yusaku Tottori
  • Patent number: 8970909
    Abstract: An image forming apparatus of this invention determines a correction amount for each image signal so as to correct banding as periodic density unevenness in a sub scanning direction, corrects each pixel value of an n-bit image signal in accordance with the correction amount, generates the first corrected image signal, and quantizes, for each pixel, the first corrected image signal into a second corrected image signal of m bits smaller than n bits. This image forming apparatus diffuses, in a main scanning direction, quantization errors at the time of quantization of the first corrected image signal into the second corrected image signal so as to cancel the quantization errors within a predetermined region including a plurality of continuous pixels on a main scanning line.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroyuki Yamazaki