Patents by Inventor Masaaki Sato

Masaaki Sato 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: 20210167862
    Abstract: An optical module includes a photoelectric converter configured to receive an optical signal having an intensity that changes at one of a first frequency or a second frequency that is higher than the first frequency, and convert the optical signal into a current signal corresponding to the intensity of the optical signal; a signal processor configured to acquire, when the optical signal has the intensity that changes at the first frequency, wavelength information set on a transmitting side based on a ratio between a plurality of signal intensities included in the current signal relating to the optical signal having the intensity that changes at the first frequency; and a decoder configured to generate, when the optical signal has the intensity that changes at the second frequency, communication data from the current signal relating to the optical signal having the intensity that changes at the second frequency.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 3, 2021
    Inventors: Koki SATO, Masaaki FURUKAWA, Keiichi MURAKAMI, Takuya SATO
  • Patent number: 11020787
    Abstract: A workpiece placement platform device including: an X-axis direction positioning member provided on one side of a placement platform on which to place a plate-shaped workpiece and configured to position one side edge of the workpiece in an X-axis direction by contacting the one side edge; a Y-axis direction positioning member provided on another side of the placement platform and configured to position another side edge of the workpiece in a Y-axis direction by contacting the another side edge; and a workpiece positioning member that is movable in and out relative to a workpiece placement surface of the placement platform and configured to partition the workpiece placement surface into sections in the X-axis direction and enable simultaneous positioning at the sections on the workpiece placement surface.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: June 1, 2021
    Assignee: AMADA HOLDINGS CO., LTD.
    Inventors: Masaaki Sato, Iwao Hayashi, Masashi Shirota, Takeshi Washio, Naoyuki Okamoto
  • Patent number: 10996623
    Abstract: A cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the cartridge includes (i) a rotatable developing roller for developing a latent image formed on a photosensitive member; (ii) a first drive transmission member capable of receiving a rotational force originated by the main assembly; (iii) a second drive transmission member capable of coupling with the first drive transmission member and capable of transmitting the rotational force received by the first drive transmission member to the developing roller; and (iv) a coupling disconnection member including a force receiving portion capable of receiving the force originated by the main assembly, and an urging portion capable of urging at least one of the first drive transmission member and the second drive transmission member by the force received by the force receiving portion to separate one of the first drive transmission member and the second drive transmission member from the other, thereby disconnecting t
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: May 4, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Sato, Masatoshi Yamashita, Satoshi Nishiya, Kazuhiko Kanno
  • Publication number: 20210109457
    Abstract: A cartridge is configured to be attachable to a main body of an image forming apparatus and configured to receive toner supplied from a supply container. The cartridge includes a supply port configured to receive the toner supplied from the supply container, a shutter member configured to cover the supply port, and a locking member. The locking member is moved from a lock position to an unlock position to allow movement of the shutter member by using electric power supplied from the main body.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 15, 2021
    Inventors: Koji Wada, Tsuyoshi Ogawa, Hiroshi Takarada, Masaaki Sato
  • Publication number: 20210096483
    Abstract: A conveyance mechanism which includes a rotation shaft extending in a direction along a first direction connecting first and second discharge ports that is rotatable with a rotation axis extending in the first direction. Wherein, a first rotation conveyance unit is disposed on the rotation shaft, and is rotatable together with the rotation shaft, conveys developer toward the first discharge port, and a second rotation conveyance unit is disposed on the rotation shaft, and is rotatable together with the rotation shaft, conveys developer toward the second discharge port. The second rotation conveyance unit is configured to provide a larger amount of conveyance than the first rotation conveyance unit.
    Type: Application
    Filed: September 21, 2020
    Publication date: April 1, 2021
    Inventors: Hiroshi Takarada, Masaaki Sato, Koji Wada, Tsuyoshi Ogawa
  • Publication number: 20210088965
    Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member.
    Type: Application
    Filed: December 8, 2020
    Publication date: March 25, 2021
    Inventors: Masaaki Sato, Kazuhiko Kanno, Satoshi Nishiya, Masatoshi Yamashita
  • Publication number: 20210041803
    Abstract: An image forming apparatus includes: a detection unit configured to detect an amount of developer stored in a developing container and to output remaining amount information; and a control unit configured to perform control, during a replenishment of the developer to the developing container using, a replenishment container, to cause a display unit to display a message related to the replenishment. When the replenishment is instructed, the control unit is further configured to perform a first control during the replenishment in a case where the remaining amount information indicates a first remaining amount, and configured to perform a second control different from the first control during the replenishment in a case where the remaining amount information indicates a second remaining amount greater than the first remaining amount.
    Type: Application
    Filed: July 30, 2020
    Publication date: February 11, 2021
    Inventors: Nobuyuki Kobayashi, Kenichi Iida, Masahiro Hayakawa, Masaaki Sato, Haruyuki Hotta
  • Publication number: 20210039670
    Abstract: A vehicle cleaner system are mounted on an autonomous driving vehicle including a vehicle control unit capable of selectively executing an autonomous driving mode and a manual driving mode. The vehicle cleaner system includes: a cleaner unit configured to clean an external sensor; and a cleaner control unit configured to control the cleaner unit. When the vehicle control unit switches from the manual driving mode to the autonomous driving mode, the vehicle control unit is configured such that, after the cleaner control unit causes the cleaner unit to clean the external sensor or after a diagnosis is performed to ascertain whether or not the external sensor needs to be cleaned, the manual driving mode is switched to the autonomous driving mode.
    Type: Application
    Filed: March 7, 2019
    Publication date: February 11, 2021
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru SAKAI, Kazuki KAWAMURA, Akinobu KUBOTA, Masaaki SATO
  • Publication number: 20210031727
    Abstract: A vehicle cleaner system includes a front LiDAR and a front camera, which are external sensors that acquire information on an outside of a vehicle, a cleaner unit, a front tank that stores the cleaning liquid, and a cleaner control unit that controls the cleaner unit. The cleaner unit includes a front LiDAR cleaner that discharge the cleaning liquid to clean the front LiDAR, and a front camera cleaner that discharges the cleaning liquid to clean the front camera. The cleaner control unit is configured to be capable of outputting a remaining amount insufficiency prediction signal to a vehicle control unit, which controls traveling of the vehicle, when the cleaning liquid in the front tank is equal to or less than a predetermined amount.
    Type: Application
    Filed: March 15, 2019
    Publication date: February 4, 2021
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru SAKAI, Masaaki SATO, Kazuki KAWAMURA
  • Patent number: 10901365
    Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: January 26, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaaki Sato, Kazuhiko Kanno, Satoshi Nishiya, Masatoshi Yamashita
  • Publication number: 20210003965
    Abstract: Control to drive and stop developing roller is effected.
    Type: Application
    Filed: September 18, 2020
    Publication date: January 7, 2021
    Inventors: Sohta Sugimoto, Masaaki Sato
  • Publication number: 20210003961
    Abstract: A process cartridge detachably mountable to an electrophotographic image forming apparatus including a main assembly side drive transmission member and a main assembly side urging member, the cartridge including a rotatable photosensitive drum; a rotatable developing roller for developing a latent image formed on the drum, the developing roller contactable to and spaceable from the drum; an urging force receiving portion for receiving an urging force from the urging member to space the roller from the drum; a cartridge side drive transmission portion capable of coupling with the main assembly side drive transmission member to receive a rotational force for rotating the roller; a releasing member capable of urging the main assembly side drive transmission member to decouple the cartridge side drive transmission member from the main assembly side drive transmission member by the urging force receiving portion receiving the urging force from the main assembly side urging member.
    Type: Application
    Filed: September 17, 2020
    Publication date: January 7, 2021
    Inventors: Tetsushi Uneme, Masaaki Sato
  • Publication number: 20200409304
    Abstract: In a cartridge structure employing an inclinable coupling member engaging with a rotational force transmitting portion of an electrophotographic image forming apparatus, the coupling member is unable to engage with the rotational force transmitting portion of the electrophotographic image forming apparatus when the mounting and dismounting direction and the developing/spacing direction relative to the electrophotographic image forming apparatus of different from each other. Under the circumstances, a coupling lever contacting and retracting relative to the coupling member in interrelation with the mounting and dismounting operation of a developing cartridge B1, and a coupling spring for the coupling lever to apply an urging force to the coupling member are provided.
    Type: Application
    Filed: August 6, 2020
    Publication date: December 31, 2020
    Inventors: Yosuke Kashiide, Masaaki Sato, Hiroyuki Munetsugu
  • Publication number: 20200406864
    Abstract: A vehicle cleaner system includes: a cleaner unit mounted on a vehicle and configured to clean an external sensor acquiring information on outside of the vehicle; an advanced notification information acquiring unit configured to acquire expressway advanced notification information notifying that the vehicle has arrived within a predetermined distance from an entrance of an expressway; and a cleaner control unit configured to, when the advanced notification information acquiring unit has acquired the expressway advanced notification information, control the cleaner unit to clean the external sensor or diagnose whether or not the external sensor needs to be cleaned by the cleaner unit.
    Type: Application
    Filed: March 4, 2019
    Publication date: December 31, 2020
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru SAKAI, Kazuki KAWAMURA, Akinobu KUBOTA, Masaaki SATO
  • Patent number: 10824110
    Abstract: Control to drive and stop developing roller is effected. A cartridge includes a drive transmission member movable between a transmitting position capable of transmitting the driving force toward a developing roller and a blocking position capable of blocking the transmission of the driving force to the developing roller.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: November 3, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sohta Sugimoto, Masaaki Sato
  • Patent number: 10823040
    Abstract: An exhaust gas control system includes an upstream purification device disposed in an exhaust passage of the internal combustion engine, a downstream purification device disposed in a portion of the exhaust passage downstream from the upstream purification device, a fuel addition valve disposed in a portion of the exhaust passage upstream from the upstream purification device, and a urea addition valve disposed in a portion of the exhaust passage between the upstream purification device and the downstream purification device, and a cooling device. The cooling device is configured such that refrigerant cools the fuel addition valve first and then cools the urea addition valve subsequent to the fuel addition valve.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: November 3, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinya Asaura, Masaaki Sato, Ryohei Ono, Yuji Miyoshi
  • Publication number: 20200340380
    Abstract: An exhaust gas control apparatus includes an SCR catalyst arranged in an exhaust passage, a heating device that heats the SCR catalyst, a urea solution supply device that supplies a urea solution to an upstream side of the SCR catalyst, a controller that operates the heating device and the urea solution supply device, and at least one sensor that acquires information related to a state of the exhaust gas control apparatus. The controller executes a state determination process for determining whether the exhaust gas control apparatus is currently in a predetermined state in which ammonia is not adsorbable on the SCR catalyst based on the information from the at least one sensor, and a heating avoidance process for avoiding heating the SCR catalyst with the heating device irrespective of an operating condition of the internal combustion engine when the exhaust gas control apparatus is currently in the predetermined state.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 29, 2020
    Inventor: Masaaki SATO
  • Publication number: 20200301355
    Abstract: A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a rotatable photosensitive drum; a rotatable developing roller configured to develop image formed on the drum, the developing roller being capable of contacting to and spacing from the drum; an urging force receiving portion configured to receive, from a main assembly side urging member, an urging force for spacing the developing roller from the drum; a cartridge side drive transmission member capable of the coupling with a main assembly side drive transmission member and configured to receive, from the main assembly side drive transmission member, a rotational force for rotating the developing roller; and a decoupling member capable of urging the cartridge side drive transmission member by the urging force received by the urging force receiving portion to decouple the cartridge side drive transmission member from the main assembly side drive transmission member.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 24, 2020
    Inventors: Masaaki Sato, Kazuhiko Kanno, Satoshi Nishiya, Masatoshi Yamashita
  • Patent number: 10782647
    Abstract: A cartridge includes a rotatable developer carrying member rotatably supported by the frame and rotatable about an axis L1 and a coupling member rotatable about an axis L2, with the coupling member being configured to transmit a rotational force to the developer carrying member. The coupling member is movable between (a) a reference attitude in which the axis L2 of the coupling member is parallel to and offset from the axis L1 of the developer carrying member, (b) a first inclination attitude in which the coupling member is inclined in a direction toward the developer carrying member, and (c) a second inclination attitude in which the coupling member is inclined in a direction different from the direction that the coupling member is inclined in the first inclination attitude.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: September 22, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yosuke Kashiide, Masaaki Sato, Hiroyuki Munetsugu
  • Patent number: 10753249
    Abstract: An exhaust emission control device for an internal combustion engine according to the present disclosure includes an exhaust emission control catalyst provided in an exhaust passage in an internal combustion engine and divided into a preceding catalyst and a succeeding catalyst, and a heating device provided in the exhaust passage between the preceding catalyst and the succeeding catalyst. The exhaust emission control catalyst is divided into the preceding catalyst and the succeeding catalyst so that a ratio of a capacity of the preceding catalyst to a total displacement of the internal combustion engine is from 0.3 to 1.5.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: August 25, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryohei Ono, Masaaki Sato, Katsuhiro Ito, Akira Mikami, Kazuhiro Umemoto, Daichi Imai