Patents by Inventor Hiroaki Hoshi

Hiroaki Hoshi 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: 10511066
    Abstract: A battery pack cooling system includes a plurality of cells disposed in an internal space of a battery pack case so as to form a cooling passage configured to cool the cell modules by cooling air flowing in the cooling passage. The cooling passage includes a cooling air inlet passage, a cooling air exhaust passage, and a plurality of cooling branch passages disposed to connect the cooling air inlet passage and the cooling air exhaust passage in parallel. A minimum temperature sensor is disposed in the upstream position to measure a lowest temperature region in a first cell module. A maximum temperature sensor is disposed in the downstream position which becomes a highest temperature region in the first cell module. Another temperature sensor is disposed in a second cell module to measure the temperature of either the highest temperature or the lowest temperature in the second cell module.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: December 17, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Toyoki Iguchi, Hiroaki Hashimoto, Masayoshi Saeki, Hiroaki Saitou, Shigeyuki Kiyota, Yoshiyuki Tanaka, Hiroshi Iwata, Hiroshi Hoshi, Akira Kotaki, Nayuta Yamachi, Toshiyuki Yoshida, Chikara Kikkawa, Takeshi Haga
  • Publication number: 20190173135
    Abstract: A battery pack cooling system includes a plurality of cells disposed in an internal space of a battery pack case so as to form a cooling passage configured to cool the cell modules by cooling air flowing in the cooling passage. The cooling passage includes a cooling air inlet passage, a cooling air exhaust passage, and a plurality of cooling branch passages disposed to connect the cooling air inlet passage and the cooling air exhaust passage in parallel. A minimum temperature sensor is disposed in the upstream position to measure a lowest temperature region in a first cell module. A maximum temperature sensor is disposed in the downstream position which becomes a highest temperature region in the first cell module. Another temperature sensor is disposed in a second cell module to measure the temperature of either the highest temperature or the lowest temperature in the second cell module.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 6, 2019
    Inventors: Toyoki IGUCHI, Hiroaki HASHIMOTO, Masayoshi SAEKI, Hiroaki SAITOU, Shigeyuki KIYOTA, Yoshiyuki TANAKA, Hiroshi IWATA, Hiroshi HOSHI, Akira KOTAKI, Nayuta YAMACHI, Toshiyuki YOSHIDA, Chikara KIKKAWA, Takeshi HAGA
  • Patent number: 6890081
    Abstract: An optical element formed from a transparent optical material includes two refraction surfaces, a first reflection surface group having a plurality of internal reflection surfaces arrayed in a predetermined direction, a second reflection surface group opposing the first reflection surface group and having at least one internal reflection surface and two side surfaces opposing each other in parallel to the predetermined direction. Light incident from one of the refraction surfaces is alternately reflected by the internal reflection surfaces of the first reflection surface group and the internal reflection surface of the second reflection surface group and guided to the other refraction surface.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: May 10, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiro Sunaga, Hiroaki Hoshi, Takeshi Akiyama
  • Patent number: 6812447
    Abstract: In order to detect the amplitude and phase of object light with a high SNR, an image pickup apparatus includes an image pickup unit having semiconductor photodetection elements arrayed two-dimensionally, a light-emitting element unit for emitting reference light having a predetermined frequency difference with respect to the frequency of light incident on the image pickup unit, and a wave synthesizer for synthesizing the incident light with the reference light from the light-emitting element unit and guiding the resultant light to the image pickup unit.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: November 2, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroaki Hoshi, Tsunefumi Tanaka
  • Publication number: 20040046910
    Abstract: A display apparatus is constituted by a planar display device and a planar illumination device therefor. A lowering in light quantity at a periphery of the planar illumination device is prevented by inserting a reflection member, such as a reflection frame, having an inside reflection surface along the periphery of the illumination device, or a combination of a scattering means and a transparent sheet member between the display device and the illumination device. A plurality of the display apparatus may be combined to allow an associate movement thereof so as to constitute a composite display apparatus, such as a head-mount display.
    Type: Application
    Filed: June 20, 2003
    Publication date: March 11, 2004
    Applicant: Canon Kabushiki Kaisha
    Inventors: Takao Sasakura, Noritaka Mochizuki, Hiroaki Hoshi
  • Patent number: 6690684
    Abstract: An optical element includes a base member formed of a material transmitting a light of a predetermined wavelength therethrough and an optical acting surface provided on the base member. The optical acting surface has a plurality of micro structures smaller than the predetermined wavelength for creating potential confining one of an electron and a dipole moment therein, and desired optical action utilizing the light of the predetermined wavelength discharged by the vibration of the electron or the dipole moment confined in the potential formed by the micro structures.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: February 10, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroaki Hoshi
  • Patent number: 6637899
    Abstract: An optical element formed from a transparent optical material includes two refraction surfaces, a first reflection surface group having a plurality of internal reflection surfaces arrayed in a predetermined direction, a second reflection surface group opposing the first reflection surface group and having at least one internal reflection surface and two side surfaces opposing each other in parallel to the predetermined direction. Light incident from one of the refraction surfaces is alternately reflected by the internal reflection surfaces of the first reflection surface group and the internal reflection surface of the second reflection surface group and guided to the other refraction surface.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: October 28, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiro Sunaga, Hiroaki Hoshi, Takeshi Akiyama
  • Patent number: 6633350
    Abstract: A display apparatus is constituted by a planar display device and a planar illumination device therefor. A lowering in light quantity at a periphery of the planar illumination device is prevented by inserting a reflection member, such as a reflection frame, having an inside reflection surface along the periphery of the illumination device, or a combination of a scattering means and a transparent sheet member between the display device and the illumination device. A plurality of the display apparatus may be combined to allow an associate movement thereof so as to constitute a composite display apparatus, such as a head-mount display.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: October 14, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takao Sasakura, Noritaka Mochizuki, Hiroaki Hoshi
  • Publication number: 20030179474
    Abstract: An optical element formed from a transparent optical material includes two refraction surfaces, a first reflection surface group having a plurality of internal reflection surfaces arrayed in a predetermined direction, a second reflection surface group opposing said first reflection surface group and having at least one internal reflection surface and two side surfaces opposing each other in parallel to the predetermined direction. Light incident from one of the refraction surface is alternately reflected by the internal reflection surfaces of the first reflection surface group and the internal reflection surface of the second reflection surface group and guided to the other refraction surface.
    Type: Application
    Filed: March 20, 2003
    Publication date: September 25, 2003
    Applicant: Canon Kabushiki Kaisha
    Inventors: Toshihiro Sunaga, Hiroaki Hoshi, Takeshi Akiyama
  • Publication number: 20030142423
    Abstract: An optical element formed from a transparent optical material includes two refraction surfaces, a first reflection surface group having a plurality of internal reflection surfaces arrayed in a predetermined direction, a second reflection surface group opposing said first reflection surface group and having at least one internal reflection surface and two side surfaces opposing each other in parallel to the predetermined direction. Light incident from one of the refraction surface is alternately reflected by the internal reflection surfaces of the first reflection surface group and the internal reflection surface of the second reflection surface group and-guided to the other refraction surface.
    Type: Application
    Filed: September 24, 1999
    Publication date: July 31, 2003
    Inventors: TOSHIHIRO SUNAGA, HIROAKI HOSHI, TAKESHI AKIYAMA
  • Patent number: 6556360
    Abstract: An optical element of a transparent body has two refracting surfaces formed in surfaces of the transparent body, and a plurality of reflecting surfaces formed in surfaces of the transparent body. Light incident through one refracting surface into the transparent body is reflected successively by the plurality of reflecting surfaces to be guided to the other refracting surface. At least one of the two refracting surfaces and reflecting surfaces has an optical low pass filter.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: April 29, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroaki Hoshi, Hiroshi Saruwatari
  • Patent number: 6507359
    Abstract: Convergence angle information and image information of video cameras is transmitted from a multi-eye image-taking apparatus having two video cameras through a recording medium to a displaying apparatus. A convergence angle of display units in the displaying apparatus is controlled in accordance with the convergence angle information of the video cameras, permitting an observer to observe natural images. Since the convergence angle information is made ahead of the image information, the convergence angle of the display units can be changed with a natural feeling.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: January 14, 2003
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomotaka Muramoto, Jun Tokumitsu, Tsunefumi Tanaka, Hiroaki Hoshi, Shigeki Okauchi, Nobuo Fukushima, Katsumi Iijima, Atsushi Namba
  • Publication number: 20030002167
    Abstract: An optical element of a transparent body has two refracting surfaces formed in surfaces of the transparent body, and a plurality of reflecting surfaces formed in surfaces of the transparent body. Light incident through one refracting surface into the transparent body is reflected successively by the plurality of reflecting surfaces to be guided to the other refracting surface. At least one of the two refracting surfaces and reflecting surfaces has an optical low pass filter.
    Type: Application
    Filed: December 28, 1999
    Publication date: January 2, 2003
    Inventors: HIROAKI HOSHI, HIROSHI SARUWATARI
  • Patent number: 6433327
    Abstract: A near-field optical microscope comprising an optical probe which is arranged in opposition to a sample and irradiates the sample with an evanescent wave, a plurality of photodetectors which detect respective components of light scattered in different directions, among components of the scattered light generated by scattering of the evanescent wave by the sample, and a processor which analyzes characteristics of the sample on the basis of respective detection signals of the plurality of photodetectors.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: August 13, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hiroaki Hoshi
  • Publication number: 20020033441
    Abstract: In order to detect the amplitude and phase of object light with a high SNR, an image pickup apparatus includes an image pickup unit having semiconductor photodetection elements arrayed two-dimensionally, a light-emitting element unit for emitting reference light having a predetermined frequency difference with respect to the frequency of light incident on the image pickup unit, and a wave synthesizer for synthesizing the incident light with the reference light from the light-emitting element unit and guiding the resultant light to the image pickup unit.
    Type: Application
    Filed: July 30, 2001
    Publication date: March 21, 2002
    Inventors: Hiroaki Hoshi, Tsunefumi Tanaka
  • Publication number: 20020005921
    Abstract: A display apparatus is constituted by a planar display device and a planar illumination device therefor. A lowering in light quantity at a periphery of the planar illumination device is prevented by inserting a reflection member, such as a reflection frame, having an inside reflection surface along the periphery of the illumination device, or a combination of a scattering means and a transparent sheet member between the display device and the illumination device. A plurality of the display apparatus may be combined to allow an associate movement thereof so as to constitute a composite display apparatus, such as a head-mount display.
    Type: Application
    Filed: June 9, 1999
    Publication date: January 17, 2002
    Inventors: TAKAO SASAKURA, NORITAKA MOCHIZUKI, HIROAKI HOSHI
  • Patent number: 6324012
    Abstract: An optical system includes an optical element having a plurality of reflective surfaces integrally formed, at least one reflective surface out of the plurality of reflective surfaces of the optical element being a curved surface a normal to which at an intersecting point with a reference axis does not coincide with the reference axis, an image pickup element to which light successively reflected by the plurality of reflective surfaces is incident, and an optical member for making at least part of the light that ought to enter the image pickup element, travel in an optical path different from an optical path toward the image pickup element. The light made to travel in the different optical path by the optical member is utilized for a purpose other than image pickup by said image pickup element.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: November 27, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Michiharu Aratani, Hiroaki Hoshi
  • Patent number: 6215596
    Abstract: An optical element integrally has an optically acting surface, which is a rotationally asymmetric, aspherical surface, and a monitor surface for evaluation of whether the optical element is defective or not. The monitor surface is provided in a portion effecting no optical action, except for the optically acting surface.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: April 10, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keisuke Araki, Tsunefumi Tanaka, Hiroaki Hoshi
  • Patent number: 6144427
    Abstract: A liquid crystal display device comprises a reflective type liquid crystal panel with pixels which are arranged in two-dimentionally and which modulate irradiated light utilizing polymer dispersed liquid crystal capable of exhibiting two conditions including scattering and unscattering. The device is provided with an optical member having a multiple-interference effect at a predetermined angle with respect to the surface of the reflective type liquid crystal panel.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: November 7, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroaki Hoshi, Shunsuke Inoue
  • Patent number: 6094216
    Abstract: A stereoscopic display apparatus and method performs and includes, respectively, steps of dividing each of a plurality of parallax images supplied from a parallax image source having parallax image information into stripe pixels, displaying, on a display, a single stripe image by arranging and synthesizing some of the stripe pixels in a predetermined order, displaying a slit pattern consisting of a light-transmission portion and a light-shielding portion arranged at a predetermined pitch on a spatial light modulation element arranged at a predetermined position on the front or rear side of the display, inputting light transmitted through the stripe pixels, corresponding to the right and left eyes of an observer, of the stripe image to the right and left eyes of the observer via the spatial light modulation element and synchronously displaying the stripe pattern and the slit pattern in units of pixels or scan lines on corresponding scan lines of the display and the spatial light modulation element.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: July 25, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naosato Taniguchi, Hiroaki Hoshi, Saburo Sugawara, Toshiyuki Sudo, Hideki Morishima, Kazutaka Inoguchi