Patents by Inventor Osamu Ozawa

Osamu Ozawa 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: 20220026541
    Abstract: A photodetection device according to the present disclosure includes: a light-receiving element; a load circuit connected to the light-receiving element; a switch circuit connected to the light-receiving element; and a feedback circuit configured to operate the switch circuit in accordance with an output from the light-receiving element. The feedback circuit has a delay circuit. A distance measurement device according to the present disclosure includes: a light source configured to radiate light toward a measurement object; and a photodetection device configured to detect light reflected by the measurement object, wherein the photodetection device configured as described above is used as the photodetection device.
    Type: Application
    Filed: November 15, 2019
    Publication date: January 27, 2022
    Inventor: Osamu Ozawa
  • Publication number: 20220026536
    Abstract: A light detection apparatus according to the present disclosure includes a light-receiving element, a load circuit connected to the light-receiving element, and a control portion configured to control a recharge current that flows through the load circuit in accordance with an element characteristic of the light-receiving element. In addition, a ranging apparatus according to the present disclosure includes: a light source configured to radiate light toward a measurement object; and a light detection apparatus configured to detect light reflected by the measurement object, when the light detection apparatus configured as described above is used as the light detection apparatus.
    Type: Application
    Filed: November 20, 2019
    Publication date: January 27, 2022
    Inventor: Osamu Ozawa
  • Patent number: 10938382
    Abstract: An electronic circuit according to one aspect of the present technology includes an MOS circuit portion and a stabilizing element portion. The MOS circuit portion includes a deep well. The stabilizing element portion includes a first element portion arranged between a power supply source and the deep well, and stabilizes a potential of the deep well.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: March 2, 2021
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Osamu Ozawa, Takahiro Naito, Tatsuo Kuroiwa, Kenichi Tayu
  • Publication number: 20210025990
    Abstract: A light reception device comprises a pixel array including a plurality of pixels, each of the plurality of pixels including a photosensitive element configured to generate a signal in response to detection of a photon by the photosensitive element, wherein the plurality of pixels include a first pixel having a first sensitivity to detect a first photon incident on the first pixel and a second pixel having a second sensitivity to detect a second photon incident on the second pixel, wherein the second sensitivity is lower than the first sensitivity.
    Type: Application
    Filed: April 9, 2019
    Publication date: January 28, 2021
    Applicant: Sony Semiconductor Solutions Corporation
    Inventors: Osamu Ozawa, Hayato Kamizuru
  • Patent number: 10652488
    Abstract: An optical-detection element includes a p-type supporting-layer, an n-type buried charge-generation region to implement a photodiode with the supporting-layer, a p-type shield region buried in the buried charge-generation region, a gate insulating-film contacted with the shield region, a transparent electrode on the gate insulating-film, a p-type well region buried in the supporting-layer, and an n+-type charge-readout region buried in the supporting-layer at an edge of the well region toward the buried charge-generation region.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: May 12, 2020
    Assignees: BROOKMAN TECHNOLOGY, INC., IKEGAMI TSUSHINKI CO., LTD., JAPAN ATOMIC ENERGY AGENCY
    Inventors: Takashi Watanabe, Osamu Ozawa, Kunihiko Tsuchiya, Tomoaki Takeuchi
  • Patent number: 10618017
    Abstract: A method of mixing a rubber composition includes a carbon introduction step and a uniform dispersion step. In the carbon introduction step, on the basis of a deviation between a rate of temperature increase of the rubber mixture (R) and a target value, at least one of a ram pressure (Pr) and a rotational speed (N) of the mixing rotor (2) is PID controlled so that the ultimate temperature of the rubber mixture (R) at the conclusion of the step is within a tolerance range. In the uniform dispersion step, the ram pressure (Pr) or the rotational speed (N) of the mixing rotor (2) is adjusted to reduce a deviation between a value based on successively detected data associated with a predetermined control target and a target value.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: April 14, 2020
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Osamu Ozawa
  • Publication number: 20190356305
    Abstract: An electronic circuit according to one aspect of the present technology includes: an MOS circuit portion; and a stabilizing element portion. The MOS circuit portion includes a deep well. The stabilizing element portion includes a first element portion arranged between a power supply source and the deep well, and stabilizes a potential of the deep well.
    Type: Application
    Filed: December 19, 2017
    Publication date: November 21, 2019
    Inventors: OSAMU OZAWA, TAKAHIRO NAITO, TATSUO KUROIWA, KENICHI TAYU
  • Publication number: 20180302581
    Abstract: An optical-detection element includes a p-type supporting-layer, an n-type buried charge-generation region to implement a photodiode with the supporting-layer, a p-type shield region buried in the buried charge-generation region, a gate insulating-film contacted with the shield region, a transparent electrode on the gate insulating-film, a p-type well region buried in the supporting-layer, and an n+-type charge-readout region buried in the supporting-layer at an edge of the well region toward the buried charge-generation region.
    Type: Application
    Filed: March 30, 2018
    Publication date: October 18, 2018
    Applicants: BROOKMAN TECHNOLOGY, INC., IKEGAMI TSUSHINKI CO., LTD., JAPAN ATOMIC ENERGY AGENCY
    Inventors: Takashi Watanabe, Osamu Ozawa, Kunihiko Tsuchiya, Tomoaki Takeuchi
  • Publication number: 20170225132
    Abstract: A method of mixing a rubber composition includes a carbon introduction step and a uniform dispersion step. In the carbon introduction step, on the basis of a deviation between a rate of temperature increase of the rubber mixture (R) and a target value, at least one of a ram pressure (Pr) and a rotational speed (N) of the mixing rotor (2) is PID controlled so that the ultimate temperature of the rubber mixture (R) at the conclusion of the step is within a tolerance range. In the uniform dispersion step, the ram pressure (Pr) or the rotational speed (N) of the mixing rotor (2) is adjusted to reduce a deviation between a value based on successively detected data associated with a predetermined control target and a target value.
    Type: Application
    Filed: July 21, 2015
    Publication date: August 10, 2017
    Inventor: Osamu Ozawa
  • Patent number: 9696554
    Abstract: A color separation optical assembly (3) of an image capture device (1) includes, in order from a light incidence side, a first prism (10) which has a first dichroic film (D1) and extracts blue light (LB) reflected by the first dichroic film, a second prism (20) which has a second dichroic film (D2) and extracts red light (LR) transmitted through the first dichroic film and reflected by the second dichroic film, and a third prism (30) which extracts green light (LG) transmitted through the first and second dichroic films. The first dichroic film is a multiband dichroic film which reflects light of an infrared region from a long wavelength side of a red region.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: July 4, 2017
    Assignees: FUJIFILM Corporation, JAPAN BROADCASTING CORPORATION, IKEGAMI TSUSHINKI CO., LTD.
    Inventors: Arihiro Saita, Yuichi Sawahata, Kenichiro Masaoka, Yukihiro Nishida, Osamu Ozawa
  • Patent number: 9628021
    Abstract: A wiring pattern for oscillation input signal and a wiring pattern for oscillation output signal are provided on a printed circuit board, and a wiring pattern for ground power source voltage is arranged in a region therebetween. A quartz crystal unit is connected between the wiring pattern for oscillation input signal and the wiring pattern for oscillation output signal and one ends of capacitors serving as load capacitors thereof are connected to the wiring pattern for ground power source voltage. Further, a wiring pattern for VSS is arranged so as to enclose these wiring patterns, and a wiring pattern for VSS is arranged also in a lower layer in addition thereto. By this means, reduction of a parasitic capacitance between an XIN node and an XOUT node, improvement in noise tolerance of these nodes and others can be achieved.
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: April 18, 2017
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Osamu Ozawa, Masashi Horiguchi, Yuichi Okuda, Akihito Anzai
  • Patent number: 9587999
    Abstract: A device for measuring the state of contact of a measuring roller of a conveyor belt includes a pressure sensor provided on a rotating surface of the measuring roller, which rotates in contact with an inner peripheral surface of a conveyor belt stretched between pulleys. The pressure sensor detects resistance force acting when the conveyor belt rides over the measuring roller. A rotational position sensor detects the circumferential position, on the rotating surface, of the pressure sensor. The data detected are sequentially wirelessly transmitted to the outside of the measuring roller by a transmission unit installed on the measuring roller, and the transmitted detection data are received by a receiver.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: March 7, 2017
    Assignee: The Yokohama Rubber Co., LTD.
    Inventors: Atsushi Miyajima, Osamu Ozawa
  • Publication number: 20160178917
    Abstract: A color separation optical assembly (3) of an image capture device (1) includes, in order from a light incidence side, a first prism (10) which has a first dichroic film (D1) and extracts blue light (LB) reflected by the first dichroic film, a second prism (20) which has a second dichroic film (D2) and extracts red light (LR) transmitted through the first dichroic film and reflected by the second dichroic film, and a third prism (30) which extracts green light (LG) transmitted through the first and second dichroic films. The first dichroic film is a multiband dichroic film which reflects light of an infrared region from a long wavelength side of a red region.
    Type: Application
    Filed: February 26, 2016
    Publication date: June 23, 2016
    Applicants: FUJIFILM Corporation, Japan Broadcasting Corporation, IKEGAMI TSUSHINKI CO., LTD.
    Inventors: Arihiro SAITA, Yuichi SAWAHATA, Kenichiro MASAOKA, Yukihiro NISHIDA, Osamu OZAWA
  • Publication number: 20160164461
    Abstract: A wiring pattern for oscillation input signal and a wiring pattern for oscillation output signal are provided on a printed circuit board, and a wiring pattern for ground power source voltage is arranged in a region therebetween. A quartz crystal unit is connected between the wiring pattern for oscillation input signal and the wiring pattern for oscillation output signal and one ends of capacitors serving as load capacitors thereof are connected to the wiring pattern for ground power source voltage. Further, a wiring pattern for VSS is arranged so as to enclose these wiring patterns, and a wiring pattern for VSS is arranged also in a lower layer in addition thereto. By this means, reduction of a parasitic capacitance between an XIN node and an XOUT node, improvement in noise tolerance of these nodes and others can be achieved.
    Type: Application
    Filed: February 15, 2016
    Publication date: June 9, 2016
    Inventors: Osamu Ozawa, Masashi Horiguchi, Yuichi Okuda, Akihito Anzai
  • Publication number: 20160164462
    Abstract: A semiconductor apparatus includes: first and second external terminals that are connected to respective both ends of an piezoelectric vibrator, in which the piezoelectric vibrator is externally disposed; an inverting amplifier that is disposed between the first and second external terminals; a feedback resistance that feeds back an output of the inverting amplifier to an input of the inverting amplifier; a first capacitative element that is disposed between the first external terminal and a reference voltage terminal; a first resistive element that is disposed in series with the first capacitative element; a second capacitative element that is disposed between the second external terminal and the reference voltage terminal; and a second resistive element that is disposed in series with the second capacitative element.
    Type: Application
    Filed: February 11, 2016
    Publication date: June 9, 2016
    Inventors: Osamu OZAWA, Soshiro NISHIOKA
  • Patent number: 9300248
    Abstract: A wiring pattern for oscillation input signal and a wiring pattern for oscillation output signal are provided on a printed circuit board, and a wiring pattern for ground power source voltage is arranged in a region therebetween. A quartz crystal unit is connected between the wiring pattern for oscillation input signal and the wiring pattern for oscillation output signal and one ends of capacitors serving as load capacitors thereof are connected to the wiring pattern for ground power source voltage. Further, a wiring pattern for VSS is arranged so as to enclose these wiring patterns, and a wiring pattern for VSS is arranged also in a lower layer in addition thereto. By this means, reduction of a parasitic capacitance between an XIN node and an XOUT node, improvement in noise tolerance of these nodes and others can be achieved.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: March 29, 2016
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Osamu Ozawa, Masashi Horiguchi, Yuichi Okuda, Akihito Anzai
  • Publication number: 20160076955
    Abstract: A device for measuring the state of contact of a measuring roller of a conveyor belt includes a pressure sensor provided on a rotating surface of the measuring roller, which rotates in contact with an inner peripheral surface of a conveyor belt stretched between pulleys. The pressure sensor detects resistance force acting when the conveyor belt rides over the measuring roller. A rotational position sensor detects the circumferential position, on the rotating surface, of the pressure sensor. The data detected are sequentially wirelessly transmitted to the outside of the measuring roller by a transmission unit installed on the measuring roller, and the transmitted detection data are received by a receiver.
    Type: Application
    Filed: May 7, 2014
    Publication date: March 17, 2016
    Inventors: Atsushi Miyajima, Osamu Ozawa
  • Patent number: 9281781
    Abstract: A semiconductor apparatus includes: first and second external terminals that are connected to respective both ends of an piezoelectric vibrator, in which the piezoelectric vibrator is externally disposed; an inverting amplifier that is disposed between the first and second external terminals; a feedback resistance that feeds back an output of the inverting amplifier to an input of the inverting amplifier; a first capacitative element that is disposed between the first external terminal and a reference voltage terminal; a first resistive element that is disposed in series with the first capacitative element; a second capacitative element that is disposed between the second external terminal and the reference voltage terminal; and a second resistive element that is disposed in series with the second capacitative element.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: March 8, 2016
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Osamu Ozawa, Soshiro Nishioka
  • Publication number: 20150365049
    Abstract: A semiconductor integrated circuit device having a function to perform oscillation in combination with a crystal oscillator, includes: a first impedance element including a first external terminal coupled to one terminal of the crystal oscillator, a second external terminal coupled to the other terminal of the crystal oscillator, and first and second terminals coupled to the first and second external terminals when the oscillation is performed; a first variable capacitance circuit coupled to the first terminal of the feedback impedance element, and a configuration circuit for setting a capacitance value of the first variable capacitance circuit. A measurement signal is supplied to the second terminal of the feedback impedance element, and in response to this, the capacitance value of the first variable capacitance circuit is set by the configuration circuit based on the delay time of an observation signal generated at the first terminal with respect to the measurement signal.
    Type: Application
    Filed: June 12, 2015
    Publication date: December 17, 2015
    Inventors: Osamu OZAWA, Soshiro NISHIOKA, Takashi NAKAMURA, Susumu ABE, Kazuya TANIGUCHI, Masaaki TANIMURA
  • Publication number: 20150326209
    Abstract: The present invention provides a semiconductor device including a first terminal and a second terminal respectively coupled to both ends of a crystal resonator, an inverter circuit having an input coupled to the first terminal and an output coupled to the second terminal, a feedback resistor which couples between the first terminal and the second terminal, a variable capacitor coupled to at least one of the first and second terminals, and a control circuit. The control circuit performs control to increase both of the drive capability of the inverter circuit and the capacitance value of the variable capacitor in a second mode rather than a first mode.
    Type: Application
    Filed: July 18, 2015
    Publication date: November 12, 2015
    Inventors: Osamu Ozawa, Masashi Horiguchi, Takayasu Ito