Patents by Inventor Makoto Nakagawa

Makoto Nakagawa 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: 20240109626
    Abstract: A ship monitoring system makes it easier to grasp a heading of another ship, and includes a first data generating part, a second data generating part, and processing circuitry. The first data generating part generates first ship data indicative of a position and a velocity of a first ship. The second data generating part generates second ship data indicative of a position and a velocity of a second ship. The processing circuitry calculates a risk value indicative of a risk of the first ship and the second ship colliding each other, for each point on an estimated course of the second ship, based on the first ship data and the second ship data, when assuming that the first ship changes the course and reaches the point. The processing circuitry displays a risk area indicative of a heading of the second ship at the point where the risk value is more than a threshold.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 4, 2024
    Applicant: Furuno Electric Co., Ltd.
    Inventors: Yuichi TAKEBAYASHI, Kazuya NAKAGAWA, Seiichi UOSHITA, Yuta TAKAHASHI, Makoto YOSHINAGA
  • Patent number: 11940557
    Abstract: A processor in an object detection device is configured to: acquire settings data for one or more radar grids, each radar grid being set for a measurement area of a corresponding radar and consisting of radar cells; acquire settings data for a processing grid for clustering operations, the processing grid being set for the one or more measurement areas and consisting of processing cells; calculate, for each processing cell, one or more likelihoods associated with measurements of one or more related radar cells based on distances between the processing cell and the one or more related radar cells; calculate a grid value of each of the processing cells in the processing grid based on the one or more likelihoods; and perform a clustering operation on each processing cell based on distances between and/or grid values of the processing cell and one or more different processing cells.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: March 26, 2024
    Assignee: PANASONIC HOLDINGS CORPORATION
    Inventors: Weijie Liu, Makoto Yasugi, Yoichi Nakagawa
  • Patent number: 11326559
    Abstract: A leakage detector for a fuel vapor treatment device includes a fuel vapor treatment device that maintains the interior of a treatment system of the fuel vapor treatment device in a sealed state. In addition, the leakage detector includes; a closing valve and shutoff valve that can shut off fluid communication between the fuel tank and the canister to section the interior of the treatment system into a first region including the fuel tank and a second region including the canister. Further, the leakage detector includes an aspirator that applies a negative pressure to the second region.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: May 10, 2022
    Inventors: Makoto Nakagawa, Fumihito Nakatani, Kazutaka Hioki
  • Patent number: 11307537
    Abstract: A communication system (1) comprises a central (100) and a peripheral (200). The central (100) receives location information and time information from NTP servers (10) and a location server (30). The central (100) creates first offset information of the time measured by its own device and the time information received from the NTP servers (10). The central (100) acquires from map information a time difference corresponding to a location presented by the location information received from the location server (30). The central (100) creates first updated time information based on the time measured by its own device, first offset information, and time difference corresponding to the location presented by the location information received from location server (30) and transmits the first updated time information to the peripheral (200). The peripheral (200) changes the time displayed by its own device based on the received first updated time information.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: April 19, 2022
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Hiroshi Iwamiya, Sadao Nagashima, Satomi Michitsuta, Makoto Nakagawa, Toyokazu Nishio
  • Patent number: 11280298
    Abstract: An evaporative fuel processing device includes a canister, a purge path connected to the canister and an intake path that is connected to an internal combustion engine and through which purge gas flows from the canister to the intake path, and a flow control valve provided in the purge path to control the flow rate of the purge gas, wherein: the device further includes a first pressure detection unit that detects a first pressure at a first position between the canister and the flow control vale, and a concentration estimation unit that estimates a purge concentration of the purge gas flowing in the purge path; and the concentration estimation unit determines an increase in the first pressure generated by closing the flow control valve based on the detection value from the first pressure detection unit, and estimates the purge concentration based on the determined increase in the first pressure.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: March 22, 2022
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Makoto Nakagawa, Takahiro Seko
  • Publication number: 20210381453
    Abstract: An evaporated fuel treatment apparatus is provided with a purge pump and a purge valve and an electronic control unit (ECU) for controlling the purge pump and the purge valve. The ECU, when performing purging, opens the purge valve to control the purge pump at the rated rotational speed, and when stopping purging, closes the purge valve to control the purge pump at a zero rotational speed. When starting purging, the ECU gradually controls the purge pump from a rotational speed lower than the rated rotational speed toward the rated rotational speed before opening the purge valve which is in the closed state, and opens the purge valve when the purge pump reaches a first threshold rotational speed lower than the rated rotational speed during the performing the control.
    Type: Application
    Filed: September 5, 2019
    Publication date: December 9, 2021
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventor: Makoto NAKAGAWA
  • Patent number: 11118538
    Abstract: An evaporated fuel processing device includes a canister to which evaporated fuel generated in a fuel tank adheres; a purge passage passed through purge gas and connecting the canister and an intake pipe of an engine; a purge control valve provided on the purge passage and controlling a supply amount of the purge gas to the intake pipe by changing a duty cycle; a pump provided on the purge passage and feeding the purge gas from the canister to the intake pipe; and a controller control the duty cycle of the purge control valve. The controller detects a pressure difference between pressures at upstream and downstream ends of the purge passage while the purge gas is supplied, and corrects the duty cycle based on a supply amount of the purge gas with respect to the duty cycle with no influence of the pump, by using the detected pressure difference.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: September 14, 2021
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventor: Makoto Nakagawa
  • Publication number: 20210270215
    Abstract: An evaporative fuel processing device includes a canister, a purge path connected to the canister and an intake path that is connected to an internal combustion engine and through which purge gas flows from the canister to the intake path, and a flow control valve provided in the purge path to control the flow rate of the purge gas, wherein: the device further includes a first pressure detection unit that detects a first pressure at a first position between the canister and the flow control vale, and a concentration estimation unit that estimates a purge concentration of the purge gas flowing in the purge path; and the concentration estimation unit determines an increase in the first pressure generated by closing the flow control valve based on the detection value from the first pressure detection unit, and estimates the purge concentration based on the determined increase in the first pressure.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 2, 2021
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Makoto NAKAGAWA, Takahiro SEKO
  • Patent number: 11105283
    Abstract: In an evaporated fuel treatment apparatus, a controller performs first purge concentration determination control by gradually increasing a purge flow rate in increments of a predetermined amount and detect a purge concentration based on a detection value of the pressure sensor. As the first purge concentration determination control, the controller performs a control to prohibit changing of an operating state of the purge pump or changing of an open state of the purge valve until a detected concentration determination time at which a variation range of the purge concentration detected based on a detection value of a pressure sensor becomes equal to or less than a predetermined value.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: August 31, 2021
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Makoto Nakagawa, Yoshihiko Honda
  • Patent number: 11056050
    Abstract: An image processing unit includes: a gain calculating section obtaining, based on first luminance information for each pixel, a first gain, in which the first gain is configured to increase with an increase in pixel luminance value in a range where the pixel luminance value is equal to or larger than a predetermined luminance value, and in which the pixel luminance value is derived from the first luminance information; and a determination section determining, based on the first luminance information and the first gain, second luminance information for each of the pixels.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: July 6, 2021
    Assignee: Sony Corporation
    Inventors: Tomoya Yano, Makoto Nakagawa, Mitsuyasu Asano, Yasuo Inoue, Shoji Araki, Hidehisa Shimizu
  • Publication number: 20210115863
    Abstract: In an evaporated fuel treatment apparatus, a controller performs first purge concentration determination control by gradually increasing a purge flow rate in increments of a predetermined amount and detect a purge concentration based on a detection value of the pressure sensor. As the first purge concentration determination control, the controller performs a control to prohibit changing of an operating state of the purge pump or changing of an open state of the purge valve until a detected concentration determination time at which a variation range of the purge concentration detected based on a detection value of a pressure sensor becomes equal to or less than a predetermined value.
    Type: Application
    Filed: October 13, 2020
    Publication date: April 22, 2021
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Makoto NAKAGAWA, Yoshihiko HONDA
  • Publication number: 20210071598
    Abstract: An evaporated fuel treatment apparatus calculates concentration of purge gas from the characteristics of density of purge gas and the characteristics of a pump discharge pressure with respect to two butane ratios that have been stored in advance and a detected value of the pump discharge pressure detected by a pressure sensor, calculates concentration of purge gas by correcting the concentration of the purge gas based on an A/F detected value in an engine such that a controller controls an open degree of a purge valve and a pump speed of a purge pump during execution of purge control based on the concentration of the purge gas.
    Type: Application
    Filed: August 25, 2020
    Publication date: March 11, 2021
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventor: Makoto Nakagawa
  • Patent number: 10775552
    Abstract: A heat sink 41 is provided on a lower edge side, for example, of a display panel 21 with a heat radiation surface being on a display surface side of the display panel 21. A heat source, such as a light source 22, which generates heat owing to display operation using the display panel 21 is mounted on a mounting face opposite to the heat radiation surface. A cover 31 that covers the heat sink 41 is provided on the display surface side of the display panel 21. Air holes 311 and 312 are formed on a top face 31t and a bottom face 31b, respectively, of the cover 31. Air taken in through the air holes 312 on the bottom face 31b of the cover 31 cools the heat sink 41, and the air heated by the heat of the heat sink 41 is dissipated outside through the air holes 311 on the top face 31t. Heat generated inside the display device is efficiently dissipated with a small ventilation resistance without generation of noise.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: September 15, 2020
    Assignee: Sony Corporation
    Inventors: Naoto Kobayashi, Makoto Nakagawa, Tomoya Yano
  • Patent number: 10760533
    Abstract: A detecting unit that detects a specific pressure difference between a pressure of gas that has passed throuch a canister and a pump and a pressure of the gas before passing through the canister and the pump. A gas flow rate from the pump may be higher with a smaller pressure difference between upstream and downstream sides relative to the pump, and higher with a higher purge gas density. A gas flow rate from the canister may be lower with a smaller pressure difference between upstream and downstream sides relative to the canister, and lower with a higher purge gas density. An estimating unit may estimate a flow rate of the purge gas while the specific pressure difference is an unchanged pressure difference being a pressure at which the flow rate of the gas is not chanced by the density of the purge gas.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: September 1, 2020
    Assignee: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Makoto Nakagawa, Daisaku Asanuma, Masanori Sugiura
  • Publication number: 20200217276
    Abstract: A leakage detector for a fuel vapor treatment device includes a fuel vapor treatment device that maintains the interior of a treatment system of the fuel vapor treatment device in a sealed state. In addition, the leakage detector includes; a closing valve and shutoff valve that can shut off fluid communication between the fuel tank and the canister to section the interior of the treatment system into a first region including the fuel tank and a second region including the canister. Further, the leakage detector includes an aspirator that applies a negative pressure to the second region.
    Type: Application
    Filed: May 23, 2018
    Publication date: July 9, 2020
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Makoto NAKAGAWA, Fumihito NAKATANI, Kazutaka HIOKI
  • Publication number: 20200141361
    Abstract: An evaporated fuel processing device includes a canister to which evaporated fuel generated in a fuel tank adheres; a purge passage passed through purge gas and connecting the canister and an intake pipe of an engine; a purge control valve provided on the purge passage and controlling a supply amount of the purge gas to the intake pipe by changing a duty cycle; a pump provided on the purge passage and feeding the purge gas from the canister to the intake pipe; and a controller control the duty cycle of the purge control valve. The controller detects a pressure difference between pressures at upstream and downstream ends of the purge passage while the purge gas is supplied, and corrects the duty cycle based on a supply amount of the purge gas with respect to the duty cycle with no influence of the pump, by using the detected pressure difference.
    Type: Application
    Filed: May 15, 2018
    Publication date: May 7, 2020
    Inventor: Makoto Nakagawa
  • Publication number: 20200141359
    Abstract: A detecting unit that detects a specific pressure difference between a pressure of gas that has passed throuch a canister and a pump and a pressure of the gas before passing through the canister and the pump. A gas flow rate from the pump may be higher with a smaller pressure difference between upstream and downstream sides relative to the pump, and higher with a higher purge gas densiy. A gas flow rate from the canister may be lower with a smaller pressure difference between upstream and downstream sides relative to the canister, and lower with a higher purge gas density. An estimating unit may estimate a flow rate of the purge gas while the specific pressure difference is an unchanged pressure difference being a pressure at which the flow rate of the gas is not chanced by the density of the purge gas.
    Type: Application
    Filed: April 5, 2018
    Publication date: May 7, 2020
    Inventors: Makoto Nakagawa, Daisaku Asanuma, Masanori Sugiura
  • Patent number: 10484293
    Abstract: According to an aspect of the present invention, a device includes a transmitter and receiver that transmits and receives communication packets to and from other device, and a processor. The processor receives a packet containing first information indicating a structure type of data from the other device via the transmitter and receiver and communicates data corresponding to the first information with the other device via the transmitter and receiver.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: November 19, 2019
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Kazuho Kyou, Makoto Nakagawa, Hiroshi Iwamiya, Tsutomu Terazaki, Takahiro Tomida, Ryo Okumura, Toshihiro Takahashi
  • Publication number: 20190325817
    Abstract: An image processing unit includes: a gain calculating section obtaining, based on first luminance information for each pixel, a first gain, in which the first gain is configured to increase with an increase in pixel luminance value in a range where the pixel luminance value is equal to or larger than a predetermined luminance value, and in which the pixel luminance value is derived from the first luminance information; and a determination section determining, based on the first luminance information and the first gain, second luminance information for each of the pixels.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 24, 2019
    Inventors: Tomoya Yano, Makoto Nakagawa, Mitsuyasu Asano, Yasuo Inoue, Shoji Araki, Hidehisa Shimizu
  • Patent number: 10432771
    Abstract: According to an aspect of the present invention, a device capable of wireless communication includes a communicator configured to transmit and receive communication packets to and from other device, a memory configured to store one or more kinds of setting information, and a processor configured to determine whether or not at least one of the one or more kinds of setting information has been changed after the last communication with the other device, generate discrimination information indicating whether or not each of the one or more kinds of setting information has been changed, and control communication with the other device based on the discrimination information.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: October 1, 2019
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Kazuho Kyou, Makoto Nakagawa, Hiroshi Iwamiya, Toshihiro Takahashi, Takahiro Tomida, Tsutomu Terazaki, Ryo Okumura