Patents by Inventor Hisao Nagata

Hisao Nagata 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: 20240105737
    Abstract: Provided is a display device with extremely high resolution, a display device with higher display quality, a display device with improved viewing angle characteristics, or a flexible display device. Same-color subpixels are arranged in a zigzag pattern in a predetermined direction. In other words, when attention is paid to a subpixel, another two subpixels exhibiting the same color as the subpixel are preferably located upper right and lower right or upper left and lower left. Each pixel includes three subpixels arranged in an L shape. In addition, two pixels are combined so that pixel units including subpixel are arranged in matrix of 3×2.
    Type: Application
    Filed: December 11, 2023
    Publication date: March 28, 2024
    Inventors: Hisao IKEDA, Kouhei TOYOTAKA, Hideaki SHISHIDO, Hiroyuki MIYAKE, Kohei YOKOYAMA, Yasuhiro JINBO, Yoshitaka DOZEN, Takaaki NAGATA, Shinichi HIRASA
  • Patent number: 11541394
    Abstract: A reaction processor is provided with a reaction processing vessel in which a channel is formed, a liquid feeding system, a temperature control system for providing a high temperature region and a low temperature region to the channel, and a fluorescence detector for detecting the sample passing through a fluorescence detection region of the channel, and a CPU for controlling the liquid feeding system based on a signal that is detected. A target stop position X[L]0(n+1) of the sample in the low temperature region in an (n+1)th cycle is corrected from a target stop position X[L]0(n) of the sample in the low temperature region in the nth cycle based on the result of stopping control on the sample in the nth cycle.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: January 3, 2023
    Assignees: Nippon Sheet Glass Company, Limited, Go!Foton, Inc.
    Inventors: Takashi Fukuzawa, Naofumi Nishizawa, Hisao Nagata
  • Publication number: 20200086313
    Abstract: A reaction processor is provided with a reaction processing vessel in which a channel is formed, a liquid feeding system, a temperature control system for providing a high temperature region and a low temperature region to the channel, and a fluorescence detector for detecting the sample passing through a fluorescence detection region of the channel, and a CPU for controlling the liquid feeding system based on a signal that is detected. A target stop position X[L]0(n+1) of the sample in the low temperature region in an (n+1)th cycle is corrected from a target stop position X[L]0(n) of the sample in the low temperature region in the nth cycle based on the result of stopping control on the sample in the nth cycle.
    Type: Application
    Filed: November 19, 2019
    Publication date: March 19, 2020
    Applicants: Nippon Sheet Glass Company, Limited, Go!Foton, Inc.
    Inventors: Takashi FUKUZAWA, Naofumi NISHIZAWA, Hisao NAGATA
  • Patent number: 9664851
    Abstract: An optical device has a first frame element and second frame element. At least portions of a plurality of optical fiber pairs of an array each including an exposed end are arranged between the two frame elements. A region is defined between opposing surfaces of the two frame elements to hold the optical fibers. When holding the fibers, the two frame elements cooperate to positionally align and orient the exposed ends of each of the optical fibers for at least one of transmitting and receiving light. An optical system with the device includes a TAP photodiode array such that a portion of light is transmitted from at least a pair of input optical fibers to a corresponding pair of photodiodes of the array, and a portion of light is reflected back from an optical filter to output optical fibers corresponding to the input optical fibers.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: May 30, 2017
    Assignee: Go!Foton Holdings, Inc.
    Inventors: Kenichiro Takeuchi, Akimitsu Sato, Hisao Nagata
  • Publication number: 20160266309
    Abstract: An optical device has a first frame element and second frame element. At least portions of a plurality of optical fiber pairs of an array each including an exposed end are arranged between the two frame elements. A region is defined between opposing surfaces of the two frame elements to hold the optical fibers. When holding the fibers, the two frame elements cooperate to positionally align and orient the exposed ends of each of the optical fibers for at least one of transmitting and receiving light. An optical system with the device includes a TAP photodiode array such that a portion of light is transmitted from at least a pair of input optical fibers to a corresponding pair of photodiodes of the array, and a portion of light is reflected back from an optical filter to output optical fibers corresponding to the input optical fibers.
    Type: Application
    Filed: May 19, 2016
    Publication date: September 15, 2016
    Inventors: Kenichiro Takeuchi, Akimitsu Sato, Hisao Nagata
  • Patent number: 9366831
    Abstract: An optical device has a first frame element and second frame element. At least portions of a plurality of optical fiber pairs of an array each including an exposed end are arranged between the two frame elements. A region is defined between opposing surfaces of the two frame elements to hold the optical fibers. When holding the fibers, the two frame elements cooperate to positionally align and orient the exposed ends of each of the optical fibers for at least one of transmitting and receiving light. An optical system with the device includes a TAP photodiode array such that a portion of light is transmitted from at least a pair of input optical fibers to a corresponding pair of photodiodes of the array, and a portion of light is reflected back from an optical filter to output optical fibers corresponding to the input optical fibers.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: June 14, 2016
    Assignee: Go!Foton Holdings, Inc.
    Inventors: Kenichiro Takeuchi, Akimitsu Sato, Hisao Nagata
  • Publication number: 20160018609
    Abstract: An optical device has a first frame element and second frame element. At least portions of a plurality of optical fiber pairs of an array each including an exposed end are arranged between the two frame elements. A region is defined between opposing surfaces of the two frame elements to hold the optical fibers. When holding the fibers, the two frame elements cooperate to positionally align and orient the exposed ends of each of the optical fibers for at least one of transmitting and receiving light. An optical system with the device includes a TAP photodiode array such that a portion of light is transmitted from at least a pair of input optical fibers to a corresponding pair of photodiodes of the array, and a portion of light is reflected back from an optical filter to output optical fibers corresponding to the input optical fibers.
    Type: Application
    Filed: July 18, 2014
    Publication date: January 21, 2016
    Inventors: Kenichiro Takeuchi, Akimitsu Sato, Hisao Nagata
  • Patent number: 7333693
    Abstract: In an optical tap module, a first lens, a focusing lens, and a photodiode are arranged such that a center axis of a cylindrical case housing the first lens, the focusing lens, and the photodiode is substantially located on the same line. When light propagates through a second optical fiber and is emitted from an end surface facing the first lens so as to be incident on an optical filter, and light transmitted the optical filter is converged by the focusing lens, the photodiode and a chip mounting support are arranged such that a focal point of light is located spatially distant from the surfaces of the photodiode and the chip mounting support.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: February 19, 2008
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Hisao Nagata, Hideki Hashizume, Akimitsu Sato
  • Publication number: 20070189670
    Abstract: In an optical tap module, a first lens, a focusing lens, and a photodiode are arranged such that a center axis of a cylindrical case housing the first lens, the focusing lens, and the photodiode is substantially located on the same line. When light propagates through a second optical fiber and is emitted from an end surface facing the first lens so as to be incident on an optical filter, and light transmitted the optical filter is converged by the focusing lens, the photodiode and a chip mounting support are arranged such that a focal point of light is located spatially distant from the surfaces of the photodiode and the chip mounting support.
    Type: Application
    Filed: February 16, 2006
    Publication date: August 16, 2007
    Inventors: Hisao Nagata, Hideki Hashizume, Akimitsu Sato
  • Patent number: 6816646
    Abstract: A light-sensitive detector (1) according to the present invention is constituted by an array (11) of photodetectors, a package (13) on which the array (11) of photodetectors is mounted, and a light-transmissible window (12) for making detection light incident on light-receiving surfaces of the photodetectors. The package (13) is provided with an aperture (14) which is formed in a position adjacent to the photodetectors so that light rays substantially parallel to the detection light can pass through the aperture (14).
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: November 9, 2004
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Kenichi Nakama, Hisao Nagata
  • Patent number: 6815792
    Abstract: The present invention provides an epitaxially grown compound semiconductor film having a low density of crystal defects which are generated during the course of crystal growth of a compound semiconductor. The present invention also provides a compound semiconductor multi-layer structure including an n-type InP substrate, an n-type InP buffer layer, an undoped InGaAs light-absorbing layer, and an n-type InP cap layer, the layers being successively grown on the substrate through MOCVD. In the InGaAs layer, the compositional ratio of In/Ga is cyclically varied in a thickness direction (cyclic intervals: 80 nm) so as to fall within a range of ±2% with respect to a predetermined compositional ratio that establishes lattice matching between InGaAs and InP; specifically, within a range between 0.54/0.46 (i.e., In0.54Ga0.46As) and 0.52/0.48 (i.e., In0.52Ga0.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: November 9, 2004
    Assignee: Nippon Sheet Glass Company, Limited
    Inventors: Hisao Nagata, Yasunori Arima, Nobuyuki Komaba
  • Patent number: 6695567
    Abstract: A hydraulic device for industrial vehicles. A first motor drives a first hydraulic pump and a second hydraulic pump. The first hydraulic pump supplies hydraulic fluid to a power steering device and a brake device. The second hydraulic pump supplies hydraulic fluid to a carriage device. If an increased amount of hydraulic fluid need be supplied to the carriage device, a second motor drives a third hydraulic pump. Thus, together with the second hydraulic pump, the third hydraulic pump supplies hydraulic fluid to the carriage device.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: February 24, 2004
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Hisao Nagata, Seiji Nakashima
  • Publication number: 20030183896
    Abstract: The present invention provides an epitaxially grown compound semiconductor film having a low density of crystal defects which are generated during the course of crystal growth of a compound semiconductor. The present invention also provides a compound semiconductor multi-layer structure including an n-type InP substrate, an n-type InP buffer layer, an undoped InGaAs light-absorbing layer, and an n-type InP cap layer, the layers being successively grown on the substrate through MOCVD. In the InGaAs layer, the compositional ratio of In/Ga is cyclically varied in a thickness direction (cyclic intervals: 80 nm) so as to fall within a range of ±2% with respect to a predetermined compositional ratio that establishes lattice matching between InGaAs and InP; specifically, within a range between 0.54/0.46 (i.e., In0.54Ga0.46As) and 0.52/0.48 (i.e., In0.52Ga0.
    Type: Application
    Filed: March 27, 2003
    Publication date: October 2, 2003
    Inventors: Hisao Nagata, Yasunori Arima, Nobuyuki Komaba
  • Publication number: 20030185569
    Abstract: Disclosed is an optical communication module which may have a broad bandwidth by faithfully deriving a signal from an optical demultiplexer to obtain a flat-top in the frequency spectrum of the signal. The optical communication module comprises an optical demultiplexing component for demultiplexing the high-speed modulated and wavelength division multiplexed light, and a photoelectric transfer element array directly and optically coupled to the optical demultiplexing component. The optical demultiplexing component demultiplexes the light and emanates the demultiplexed light. Each demultiplexed light is impinged upon a corresponding photoelectric transfer element of the array. The photoelectric transfer element converges the demultiplexed light into an electrical signal.
    Type: Application
    Filed: March 26, 2003
    Publication date: October 2, 2003
    Inventors: Hisao Nagata, Masahiro Oikawa
  • Patent number: 6507084
    Abstract: A semiconductor light-receiving element fabricated by using an impurity diffusion, in which a slow tail phenomenon caused in the processing of a digital signal may be suppressed. The semiconductor light-receiving element comprises a substrate including a first impurity diffused region, a first electrode provided on the bottom of the substrate, a second electrode provided on the first impurity diffused region, a second impurity diffused region provided so as to surround the first impurity diffused region with leaving a certain space therebetween, and a third electrode provided on the second impurity diffused region, wherein a reverse vias is applied to a PN junction formed by the substrate and the second impurity diffused region.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: January 14, 2003
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventor: Hisao Nagata
  • Publication number: 20020085809
    Abstract: A light-sensitive detector (1) according to the present invention is constituted by an array (11) of photodetectors, a package (13) on which the array (11) of photodetectors is mounted, and a light-transmissible window (12) for making detection light incident on light-receiving surfaces of the photodetectors. The packgce (13) is provided with an aperture (14) which is formed in a position adjacent to the photodetectors so that light rays substantially parallel to the detection light can pass through the aperture (14).
    Type: Application
    Filed: December 21, 2001
    Publication date: July 4, 2002
    Inventors: Kenichi Nakama, Hisao Nagata
  • Publication number: 20010052630
    Abstract: A semiconductor light-receiving element fabricated by using an impurity diffusion, in which a slow tail phenomenon caused in the processing of a digital signal may be suppressed. The semiconductor light-receiving element comprises a substrate including a first impurity diffused region, a first electrode provided on the bottom of the substrate, a second electrode provided on the first impurity diffused region, a second impurity diffused region provided so as to surround the first impurity diffused region with leaving a certain space therebetween, and a third electrode provided on the second impurity diffused region, wherein a reverse vias is applied to a PN junction formed by the substrate and the second impurity diffused region.
    Type: Application
    Filed: June 13, 2001
    Publication date: December 20, 2001
    Inventor: Hisao Nagata
  • Publication number: 20010030085
    Abstract: A hydraulic device for industrial vehicles. A first motor drives a first hydraulic pump and a second hydraulic pump. The first hydraulic pump supplies hydraulic fluid to a power steering device and a brake device. The second hydraulic pump supplies hydraulic fluid to a carriage device. If an increased amount of hydraulic fluid need be supplied to the carriage device, a second motor drives a third hydraulic pump. Thus, together with the second hydraulic pump, the third hydraulic pump supplies hydraulic fluid to the carriage device.
    Type: Application
    Filed: February 26, 2001
    Publication date: October 18, 2001
    Inventors: Hisao Nagata, Seiji Nakashima
  • Patent number: 5418395
    Abstract: A semiconductor light emitting diode (LED) has a pn junction, a pin junction or a similar junction formed in a polycrystalline layer with a large grain size. The LED is produced on an amorphous, ceramic, polycrystalline or monocrystalline substrate according to a crystalline growth method and light is emitted by injecting an electric current into the junction.
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: May 23, 1995
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Hisao Nagata, Shuhei Tanaka
  • Patent number: D353931
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: December 27, 1994
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Masanao Kobayakawa, Hisao Nagata, Yoshitaka Sato, Ichiro Nagasaka