Patents by Inventor Masamitsu Takahashi

Masamitsu Takahashi 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: 11914317
    Abstract: An image forming apparatus includes a photosensitive drum, a developing device configured to supply toner onto the photosensitive drum, a transfer device configured to transfer the toner supplied onto the photosensitive drum onto a sheet, a spraying device configured to spray a fixing liquid toward the sheet onto which the toner has been transferred, the spraying device including a housing configured to accommodate the fixing liquid and nozzles configured to spray the fixing liquid inside the housing, and a collecting device configured to collect the fixing liquid sprayed from the nozzles and did not adhere to the sheet. The collecting device includes a collection tray configured to accommodate the fixing liquid, a collection pipe connected to the collection tray and configured to allow the fixing liquid in the collection tray to pass therethrough, and a collection pump configured to send the fixing liquid in the collection pipe toward the housing.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: February 27, 2024
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masataka Kamiya, Yutaka Kakigahara, Satoshi Murata, Takashi Shimizu, Koya Morimoto, Masamitsu Takahashi
  • Patent number: 11709449
    Abstract: A fixing device 9 includes a nozzle unit 9A and an opposite electrode 9B. The nozzle unit 9A sprays a fixing solution to a sheet S on which a toner image is formed. The opposite electrode 9B is located at an interval from the nozzle unit 9A. The opposite electrode 9B is applied with a voltage. The opposite electrode 9B has a first flat plate 31 and a plurality of first projections 32. The first flat plate 31 extends in a first direction. The plurality of first projections 32 extends from the first flat plate 31 in a second direction that is a direction facing from the opposite electrode 9B toward the nozzle unit 9A. The plurality of first projections 32 are aligned in the first direction.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: July 25, 2023
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Kengo Takeda, Yutaka Kakigahara, Masamitsu Takahashi, Satoshi Murata, Masataka Kamiya
  • Patent number: 11635719
    Abstract: A fixing device 9 has a nozzle unit 9A. The nozzle unit 9A sprays the fixing solution to a sheet S on which a toner image is formed. The nozzle unit 9A has a housing 21, a nozzle electrode 23 and a plurality of nozzles 22. The plurality of nozzles 22 has a first nozzle 22A and a second nozzle 22B located at an interval from the first nozzle 22A in a first direction, and the nozzle electrode 23 is located inside the housing 21. The nozzle electrode 23 extends in the first direction. A length L1 of the nozzle electrode 23 in the first direction is greater than the interval between the first nozzle 22A and the second nozzle 22B in the first direction.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: April 25, 2023
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yutaka Kakigahara, Masamitsu Takahashi, Satoshi Murata, Kengo Takeda, Masataka Kamiya
  • Publication number: 20230020065
    Abstract: An image forming apparatus includes a photosensitive drum, a developing device configured to supply toner onto the photosensitive drum, a transfer device configured to transfer the toner supplied onto the photosensitive drum onto a sheet, a spraying device configured to spray a fixing liquid toward the sheet onto which the toner has been transferred, the spraying device including a housing configured to accommodate the fixing liquid and nozzles configured to spray the fixing liquid inside the housing, and a collecting device configured to collect the fixing liquid sprayed from the nozzles and did not adhere to the sheet. The collecting device includes a collection tray configured to accommodate the fixing liquid, a collection pipe connected to the collection tray and configured to allow the fixing liquid in the collection tray to pass therethrough, and a collection pump configured to send the fixing liquid in the collection pipe toward the housing.
    Type: Application
    Filed: September 28, 2022
    Publication date: January 19, 2023
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masataka KAMIYA, Yutaka KAKIGAHARA, Satoshi MURATA, Takashi SHIMIZU, Koya MORIMOTO, Masamitsu TAKAHASHI
  • Publication number: 20220011699
    Abstract: A fixing device 9 includes a nozzle unit 9A and an opposite electrode 9B. The nozzle unit 9A sprays a fixing solution to a sheet S on which a toner image is formed. The opposite electrode 9B is located at an interval from the nozzle unit 9A. The opposite electrode 9B is applied with a voltage. The opposite electrode 9B has a first flat plate 31 and a plurality of first projections 32. The first flat plate 31 extends in a first direction. The plurality of first projections 32 extends from the first flat plate 31 in a second direction that is a direction facing from the opposite electrode 9B toward the nozzle unit 9A. The plurality of first projections 32 are aligned in the first direction.
    Type: Application
    Filed: September 28, 2021
    Publication date: January 13, 2022
    Inventors: Kengo TAKEDA, Yutaka KAKIGAHARA, Masamitsu TAKAHASHI, Satoshi MURATA, Masataka KAMIYA
  • Publication number: 20220011700
    Abstract: A fixing device 9 has a nozzle unit 9A. The nozzle unit 9A sprays the fixing solution to a sheet S on which a toner image is formed. The nozzle unit 9A has a housing 21, a nozzle electrode 23 and a plurality of nozzles 22. The plurality of nozzles 22 has a first nozzle 22A and a second nozzle 22B located at an interval from the first nozzle 22A in a first direction, and the nozzle electrode 23 is located inside the housing 21. The nozzle electrode 23 extends in the first direction. A length L1 of the nozzle electrode 23 in the first direction is greater than the interval between the first nozzle 22A and the second nozzle 22B in the first direction.
    Type: Application
    Filed: September 28, 2021
    Publication date: January 13, 2022
    Inventors: Yutaka KAKIGAHARA, Masamitsu TAKAHASHI, Satoshi MURATA, Kengo TAKEDA, Masataka KAMIYA
  • Patent number: 11067929
    Abstract: There is provided a fixing apparatus configured to fix a toner image on a print medium by spraying a fixing solution, the fixing apparatus including: a plurality of first nozzles from which the fixing solution is sprayed, a first electrode which extends in a first direction, and which faces the first nozzles in a second direction, a holding groove which accommodates the first electrode, which is configured to hold the fixing solution sprayed from the first nozzles, and which has a discharge port through, and a container configured to contain the fixing solution discharged from the discharge port. The holding groove has a bottom surface which is positioned apart from the first electrode in the second direction so that the fixing solution held in the holding groove passes between the first electrode and the bottom surface to flow toward the discharge port.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: July 20, 2021
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Satoshi Murata, Yutaka Kakigahara, Jun Mihara, Masamitsu Takahashi, Kengo Takeda
  • Publication number: 20210011407
    Abstract: There is provided a fixing apparatus configured to fix a toner image on a print medium by spraying a fixing solution, the fixing apparatus including: a plurality of first nozzles from which the fixing solution is sprayed, a first electrode which extends in a first direction, and which faces the first nozzles in a second direction, a holding groove which accommodates the first electrode, which is configured to hold the fixing solution sprayed from the first nozzles, and which has a discharge port through, and a container configured to contain the fixing solution discharged from the discharge port. The holding groove has a bottom surface which is positioned apart from the first electrode in the second direction so that the fixing solution held in the holding groove passes between the first electrode and the bottom surface to flow toward the discharge port.
    Type: Application
    Filed: September 25, 2020
    Publication date: January 14, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Satoshi MURATA, Yutaka KAKIGAHARA, Jun MIHARA, Masamitsu TAKAHASHI, Kengo TAKEDA
  • Patent number: 10268151
    Abstract: An image forming apparatus, including: a photoconductor configured to be rotatable; a charger configured to charge the photoconductor; an overcurrent detector configured to output an overcurrent detection signal in response to detection of an overcurrent in the charger; and a controller, wherein the controller is configured to execute: an obtaining process of obtaining the overcurrent detection signal output from the overcurrent detector; a first counting process of counting a first number of detections based on the overcurrent detection signal obtained in the obtaining process, the first number of detections being the number of the overcurrent detection signals synchronized with a first cycle corresponding to one rotation of the photoconductor; and a first determining process of determining whether the first number of detections is not smaller than a first threshold which is not smaller than 2.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: April 23, 2019
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Masamitsu Takahashi, Masahito Hamaya, Hiroki Katoh, Yudai Minami, Katsumi Inukai
  • Patent number: 10209926
    Abstract: When the storage system according to the present invention receives a request for writing new data to a first logical volume after having received a first pair creating request, the storage system stores the new data in a cache memory. Then when the storage system subsequently receives a second pair creating request, even if the cache memory still has stored therein the data identical to the data that was stored on the first logical volume at the point in time when the storage system received the first pair formation request, and even if this identical data has not yet been copied to the second logical volume, the storage system omits to copy this identical data to the second logical volume.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: February 19, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Masamitsu Takahashi, Yutaka Takata
  • Publication number: 20180259894
    Abstract: An image forming apparatus, including: a photoconductor configured to be rotatable; a charger configured to charge the photoconductor; an overcurrent detector configured to output an overcurrent detection signal in response to detection of an overcurrent in the charger; and a controller, wherein the controller is configured to execute: an obtaining process of obtaining the overcurrent detection signal output from the overcurrent detector; a first counting process of counting a first number of detections based on the overcurrent detection signal obtained in the obtaining process, the first number of detections being the number of the overcurrent detection signals synchronized with a first cycle corresponding to one rotation of the photoconductor; and a first determining process of determining whether the first number of detections is not smaller than a first threshold which is not smaller than 2.
    Type: Application
    Filed: March 12, 2018
    Publication date: September 13, 2018
    Inventors: Masamitsu Takahashi, Masahito Hamaya, Hiroki Katoh, Yudai Minami, Katsumi Inukai
  • Patent number: 9835969
    Abstract: An image forming apparatus is provided with a first photosensitive body, a second photosensitive body, a first charger configured to charge the first photosensitive body, a second charger configured to charge the second photosensitive body, a voltage outputting circuit, a voltage dropping circuit, and a controller. The controller is configured to selectively execute a first charging control to apply a first voltage to the first charger and the second charger, the first voltage being an output of the voltage outputting circuit, and a second charging control to apply the first voltage to the first charger a second voltage to the second charger, the second voltage being less than the first voltage, the first voltage being an input of the voltage dropping circuit and the second voltage being an output of the voltage dropping circuit.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: December 5, 2017
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Masamitsu Takahashi, Masahito Hamaya, Hiroki Katoh
  • Publication number: 20170286019
    Abstract: When the storage system according to the present invention receives a request for writing new data to a first logical volume after having received a first pair creating request, the storage system stores the new data in a cache memory. Then when the storage system subsequently receives a second pair creating request, even if the cache memory still has stored therein the data identical to the data that was stored on the first logical volume at the point in time when the storage system received the first pair formation request, and even if this identical data has not yet been copied to the second logical volume, the storage system omits to copy this identical data to the second logical volume.
    Type: Application
    Filed: November 18, 2014
    Publication date: October 5, 2017
    Inventors: Masamitsu TAKAHASHI, Yutaka TAKATA
  • Patent number: 9683118
    Abstract: An oil-based pigment ink composition contains titanium dioxide pigment, mica pigment, dispersant, oil-soluble resin, and organic solvent, whose viscosity at a shear velocity of 76 (l/s) is 50 mPa-s or lower. The ink composition produces writing with sufficient covering property and legibility, does not form hard cakes, and can release ink in a stable manner from the tip of a writing tool.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: June 20, 2017
    Assignee: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Hidetoshi Fukuo, Masamitsu Takahashi, Ryotaro Kaba
  • Publication number: 20170038700
    Abstract: An image forming apparatus is provided with a first photosensitive body, a second photosensitive body, a first charger configured to charge the first photosensitive body, a second charger configured to charge the second photosensitive body, a voltage outputting circuit, a voltage dropping circuit, and a controller. The controller is configured to selectively execute a first charging control to apply a first voltage to the first charger and the second charger, the first voltage being an output of the voltage outputting circuit, and a second charging control to apply the first voltage to the first charger a second voltage to the second charger, the second voltage being less than the first voltage, the first voltage being an input of the voltage dropping circuit and the second voltage being an output of the voltage dropping circuit.
    Type: Application
    Filed: August 4, 2016
    Publication date: February 9, 2017
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Masamitsu TAKAHASHI, Masahito HAMAYA, Hiroki KATOH
  • Publication number: 20160075893
    Abstract: An oil-based pigment ink composition contains titanium dioxide pigment, mica pigment, dispersant, oil-soluble resin, and organic solvent, whose viscosity at a shear velocity of 76 (l/s) is 50 mPa-s or lower. The ink composition produces writing with sufficient covering property and legibility, does not form hard cakes, and can release ink in a stable manner from the tip of a writing tool.
    Type: Application
    Filed: April 14, 2014
    Publication date: March 17, 2016
    Applicant: SAKURA COLOR PRODUCTS CORPORATION
    Inventors: Hidetoshi FUKUO, Masamitsu TAKAHASHI, Ryotaro KABA
  • Patent number: 9268490
    Abstract: A storage system 300a that has a volume, manages the volume as a plurality of logical volumes, and can operate as a plurality of logical storage systems having at least one logical volume. The storage system comprises an IO transmission-reception unit 1320a that communicates with a management computer 100, a host computer 200, and a storage system 300b and a processor 1310a that causes the IO transmission-reception unit 1320a to perform transmission to the management computer 100 and storage system 300b by using an identifier of the storage system 300a as an identifier indicating a representative logical storage system that is one predetermined logical storage system from among a plurality of the logical storage system when the storage system operates as a plurality of the logical storage systems.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: February 23, 2016
    Assignee: HITACHI, LTD.
    Inventors: Nobuhiro Maki, Masamitsu Takahashi, Nobuyuki Osaki
  • Publication number: 20150268891
    Abstract: A storage system 300a that has a volume, manages the volume as a plurality of logical volumes, and can operate as a plurality of logical storage systems having at least one logical volume. The storage system comprises an IO transmission-reception unit 1320a that communicates with a management computer 100, a host computer 200, and a storage system 300b and a processor 1310a that causes the IO transmission-reception unit 1320a to perform transmission to the management computer 100 and storage system 300b by using an identifier of the storage system 300a as an identifier indicating a representative logical storage system that is one predetermined logical storage system from among a plurality of the logical storage system when the storage system operates as a plurality of the logical storage systems.
    Type: Application
    Filed: June 9, 2015
    Publication date: September 24, 2015
    Applicant: HITACHI, LTD.
    Inventors: Nobuhiro MAKI, Masamitsu TAKAHASHI, Nobuyuki OSAKI
  • Patent number: 9098051
    Abstract: A collection device including: an accommodation part configured to accommodate therein collected adhering substance; and a detection part configured to detect an amount of the adhering substance in the accommodation part and including, a moving member configured to move from a first position to a second position, the accommodation part being capable of accommodating therein the adhering substance when the moving member is arranged at the first position and being full of the adhering substance when the moving member is in the second position, and a restraining member configured to restrain the moving member from moving from the first position to the second position when the moving member is arranged at the first position, and restrain the moving member from moving from the second position to the first position when the moving member is arranged at the second position.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: August 4, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Mayu Wakamatsu, Hiroshige Hiramatsu, Yoshiyuki Okazaki, Masamitsu Takahashi, Takamasa Tsukada
  • Patent number: 9086673
    Abstract: A collection device including: an accommodation part configured to accommodate therein collected adhering substance; and a detection part configured to detect an amount of the adhering substance in the accommodation part and including, a moving member configured to move from a first position to a second position, the accommodation part being capable of accommodating therein the adhering substance when the moving member is arranged at the first position and being full of the adhering substance when the moving member is in the second position, and a restraining member configured to restrain the moving member from moving from the first position to the second position when the moving member is arranged at the first position, and restrain the moving member from moving from the second position to the first position when the moving member is arranged at the second position.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: July 21, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Mayu Wakamatsu, Hiroshige Hiramatsu, Yoshiyuki Okazaki, Masamitsu Takahashi, Takamasa Tsukada