Patents by Inventor Masato Ogawa

Masato Ogawa 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: 20240146580
    Abstract: An estimation system generates, from a value of a time series of an estimation object in a past period, a plurality of patterns of a transition of a value of the estimation object. Based on the plurality of generated patterns and a value of a time series of a factor in the past period, the estimation system specifies a dependency relationship between a transition pattern and a value of the factor and a transition pattern at a past (or future) time point and identifies a model in accordance with the specified dependency relationship. By inputting a value of a time series of the factor in a future period to the estimation model, the estimation system specifies a time series of a value in the future period of the estimation object using at least one transition pattern.
    Type: Application
    Filed: March 8, 2022
    Publication date: May 2, 2024
    Inventors: Masato UTSUMI, Tohru WATANABE, Kazuki NAMBA, Ikuo SHIGEMORI, Hiroshi IIMURA, Hiroaki OGAWA, Daisuke HAMABA, Jun YAMAZAKI
  • Publication number: 20240146024
    Abstract: There is provided a surface emitting laser capable of making a confinement effect of light and current different between at least two mesa structures, and capable of improving productivity.
    Type: Application
    Filed: January 14, 2022
    Publication date: May 2, 2024
    Inventors: Shinichi AGATUMA, Masato OGAWA
  • Publication number: 20240107758
    Abstract: A method of forming a three-dimensional semiconductor device includes forming an alternating stack of insulating layers and spacer material layers over a substrate, forming memory openings formed in the memory array region and monitor openings formed in a monitor region though the alternating stack, forming memory opening fill structures in the memory openings, forming monitor opening fill structures by depositing a monitor opening fill material in the monitor openings, recessing first portions of the alternating stack in a contact region and second portions of the alternating stack in the monitor region, and determining at least one characteristic of the recessed surfaces of the monitor opening fill structures. At least one characteristic of the memory openings or memory opening fill structures may be determined based on the determining at least one characteristic of the recessed surfaces of the monitor opening fill structures.
    Type: Application
    Filed: September 28, 2022
    Publication date: March 28, 2024
    Inventors: Hiroyuki OGAWA, Masato MIYAMOTO, Keisuke SHIGEMURA
  • Publication number: 20240105406
    Abstract: A limit switch includes: a switch main body capable of being switched on and off; and an operation unit connected to the switch main body.
    Type: Application
    Filed: March 11, 2021
    Publication date: March 28, 2024
    Inventors: Kouhei YOSHIDA, Kazuyuki TSUKIMORI, Sho OGAWA, Mamoru ITO, Masato MATOBA
  • Patent number: 11890859
    Abstract: A sheet heater includes a first conveyance belt configured to convey a sheet on which a liquid has been discharged in a conveyance direction, a heating unit facing the first conveyance belt, the heating unit configured to heat the sheet conveyed by the first conveyance belt, and a second conveyance belt disposed upstream of the first conveyance belt in the conveyance direction, the second conveyance belt configured to convey the sheet to the first conveyance belt. A surface temperature of the second conveyance belt is lower than a surface temperature of the first conveyance belt when the first conveyance belt and the second conveyance belt convey the sheet.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: February 6, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kohki Asada, Kazuaki Kamihara, Masato Ogawa, Hiroshi Sawase, Yoshihiro Takahashi, Ryusaku Hida, Kenji Nozawa, Genichiroh Kawamichi
  • Publication number: 20230198465
    Abstract: A crystal oscillator internally includes a package storing a crystal unit. The crystal oscillator is configured to include: a substrate having one surface side on which the crystal unit is disposed and another surface side on which a circuit component and a heating element are disposed, the circuit component including an oscillator circuit that oscillates the crystal unit, and the heating element regulating a temperature inside the package; a stepped portion formed at an inner wall of the package to support only an end portion of the substrate from the one surface side such that the crystal unit, the circuit component, and the heating element are spaced from a wall portion of the package; and a wire that connects between a terminal disposed at the heating element and a terminal disposed inside the package without via the substrate.
    Type: Application
    Filed: January 26, 2021
    Publication date: June 22, 2023
    Applicant: NIHON DEMPA KOGYO CO., LTD.
    Inventors: Masato OGAWA, Kenji IRIE
  • Publication number: 20230178963
    Abstract: Provided is a surface emitting laser capable of reducing resistance while suppressing a decrease in manufacturing efficiency. The present technology provides a surface emitting laser including: a first multilayer film reflector; a second multilayer film reflector; and an active layer disposed between the first multilayer film reflector and the second multilayer film reflector, in which in the first multilayer film reflector and/or the second multilayer film reflector, a high-concentration impurity region having a higher impurity concentration than other regions is partially provided in a thickness direction. According to the present technology, there is provided a surface emitting laser capable of reducing resistance while suppressing a decrease in manufacturing efficiency.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 8, 2023
    Inventors: YOSHITERU TACHIKAWA, SHINICHI AGATUMA, MASATO OGAWA, HITOSHI DOMON, MASATO OISHI
  • Patent number: 11652927
    Abstract: Provided is an image reading device including: a reading unit reading an image on a document; a carriage moving with the reading unit; a detector included in the carriage and having a predetermined width in a movement direction of the carriage; a detection sensor being in a detection state when the detector is located at a position where the detector faces the detection sensor and being in a non-detection state when the detector is located at a position where the detector does not face the detection sensor; and a control portion configured to perform a positional shift determination operation of determining a positional shift of the carriage, in which, as the positional shift determination operation, the control portion starts to move the carriage when the detection sensor is in the detection state and determines the positional shift of the carriage, based on a moving amount of the carriage.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: May 16, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Seiji Kawabata, Kazunori Mori, Yutaro Kajitani, Masato Ogawa
  • Patent number: 11640128
    Abstract: A sheet conveyor includes a conveyance belt configured to rotate to convey a sheet on which a liquid has been applied in a conveyance direction, and a guide configured to guide the sheet to the conveyance belt, a position of the guide being variable in the conveyance direction.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: May 2, 2023
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuhiro Shimojima, Kenji Nozawa, Genichiroh Kawamichi, Masato Ogawa, Kohki Asada, Kazuaki Kamihara, Hiroshi Sawase, Ryusaku Hida
  • Publication number: 20230108116
    Abstract: A heating device includes a conveyor configured to convey a sheet, the sheet having a first surface on which a liquid is applied and a second surface contacting the conveyor, a first heater facing the first surface opposite to the second surface of the sheet, the first heater configured to heat the sheet, and a second heater configured to heat the conveyor.
    Type: Application
    Filed: December 5, 2022
    Publication date: April 6, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Hiroshi Sawase, Kazuaki Kamihara, Ryusaku Hida, Masato Ogawa, Kohki Asada, Yoshihiro Takahashi
  • Patent number: 11597217
    Abstract: A sheet conveyor includes an endless conveyance belt configured to rotate to convey a sheet, a belt heater configured to heat the conveyance belt; and circuitry configured to control the conveyance belt to rotate. The conveyance belt has a belt joint joining both ends of a sheet member to form the conveyance belt, and the circuitry controls the conveyance belt to rotate to receive the sheet in an area of the conveyance belt other than the belt joint of the conveyance belt.
    Type: Grant
    Filed: September 17, 2021
    Date of Patent: March 7, 2023
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuaki Kamihara, Masato Ogawa, Kohki Asada, Hiroshi Sawase, Yoshihiro Takahashi, Ryusaku Hida
  • Patent number: 11590773
    Abstract: A sheet conveyor includes a conveyance belt configured to convey a sheet on a first surface of the conveyance belt in a conveyance direction, a suction device configured to suck the sheet onto the conveyance belt via the conveyance belt, and multiple supports between the conveyance belt and the suction device in a vertical direction, the multiple supports configured to support a second surface of the conveyance belt. A longitudinal direction of each of the multiple supports is parallel to a direction intersecting the conveyance direction, and the multiple supports are arrayed in the conveyance direction.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: February 28, 2023
    Assignee: Ricoh Company, Ltd.
    Inventors: Genichiroh Kawamichi, Masato Ogawa
  • Patent number: 11559997
    Abstract: A heating device includes a conveyor configured to convey a sheet, the sheet having a first surface on which a liquid is applied and a second surface contacting the conveyor, a first heater facing the first surface opposite to the second surface of the sheet, the first heater configured to heat the sheet, and a second heater configured to heat the conveyor.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: January 24, 2023
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroshi Sawase, Kazuaki Kamihara, Ryusaku Hida, Masato Ogawa, Kohki Asada, Yoshihiro Takahashi
  • Publication number: 20220394148
    Abstract: An image reading apparatus includes a platen on which a document is to be placed, an image sensor configured to read an image of the document on the platen, an opening/closing member configured to cover and uncover the platen, a document pressing layer disposed on a surface of the opening/closing member and configured to press the document on the plate when the opening/closing member covers the platen, elastic layers located between the document pressing layer and the opening/closing member and spaced apart from each other on a surface of the document pressing layer, and connection layers connecting the elastic layers to the opening/closing member. An area of the elastic layer is larger than an area of the connection layer.
    Type: Application
    Filed: August 11, 2022
    Publication date: December 8, 2022
    Inventors: Koji MIGITA, Yutaro KAJITANI, Masato OGAWA
  • Patent number: 11463601
    Abstract: An image reading apparatus includes a platen on which a document is to be placed, an image sensor configured to read an image of the document on the platen, an opening/closing member configured to cover and uncover the platen, a document pressing layer disposed on a surface of the opening/closing member and configured to press the document on the plate when the opening/closing member covers the platen, elastic layers located between the document pressing layer and the opening/closing member and spaced apart from each other on a surface of the document pressing layer, and connection layers connecting the elastic layers to the opening/closing member. An area of the elastic layer is larger than an area of the connection layer.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: October 4, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Koji Migita, Yutaro Kajitani, Masato Ogawa
  • Publication number: 20220303412
    Abstract: An image reading apparatus includes a document bed on which a document is placed, an automatic document feeder (an example of an opening/closing member) configured to be opened/closed with respect to the document bed, a rotational supporting section provided at one end of the document bed and rotatably supporting the automatic document feeder with respect to the document bed, and a height adjustment mechanism that adjusts the height of the automatic document feeder relative to the document bed. The rotational supporting section has a holding section fixed to the document bed and a rotary fulcrum section attached to the holding section and being movable in the up-down direction relative to the holding section. The height adjustment mechanism adjusts the height of the rotary fulcrum section relative to the holding section to adjust the height of the automatic document feeder relative to the document bed and overlaps the holding section and the rotary fulcrum section in the vertical direction.
    Type: Application
    Filed: March 14, 2022
    Publication date: September 22, 2022
    Inventors: Seiji KAWABATA, Kazunori MORI, Masato OGAWA
  • Publication number: 20220239787
    Abstract: Provided is an image reading device including: a reading unit reading an image on a document; a carriage moving with the reading unit; a detector included in the carriage and having a predetermined width in a movement direction of the carriage; a detection sensor being in a detection state when the detector is located at a position where the detector faces the detection sensor and being in a non-detection state when the detector is located at a position where the detector does not face the detection sensor; and a control portion configured to perform a positional shift determination operation of determining a positional shift of the carriage, in which, as the positional shift determination operation, the control portion starts to move the carriage when the detection sensor is in the detection state and determines the positional shift of the carriage, based on a moving amount of the carriage.
    Type: Application
    Filed: January 25, 2022
    Publication date: July 28, 2022
    Inventors: Seiji KAWABATA, Kazunori MORI, Yutaro KAJITANI, Masato OGAWA
  • Publication number: 20220111663
    Abstract: A sheet conveyor includes an endless conveyance belt configured to rotate to convey a sheet, a belt heater configured to heat the conveyance belt; and circuitry configured to control the conveyance belt to rotate. The conveyance belt has a belt joint joining both ends of a sheet member to form the conveyance belt, and the circuitry controls the conveyance belt to rotate to receive the sheet in an area of the conveyance belt other than the belt joint of the conveyance belt.
    Type: Application
    Filed: September 17, 2021
    Publication date: April 14, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Kazuaki Kamihara, Masato Ogawa, Kohki Asada, Hiroshi Sawase, Yoshihiro Takahashi, Ryusaku Hida
  • Patent number: 11292271
    Abstract: A heating device includes a heat irradiator configured to heat a sheet on which a liquid is applied and is conveyed in a conveyance direction, an ultraviolet irradiator on a downstream of the heat irradiator in the conveyance direction, the ultraviolet irradiator configured to heat a portion of the sheet, and a circuitry configured to control an output of the heat irradiator and an output of the ultraviolet irradiator based on a thickness of the sheet.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: April 5, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Daisuke Nakamura, Masato Ogawa, Kenji Nozawa, Kohki Asada, Hiroshi Sawase, Kazuaki Kamihara, Yoshihiro Takahashi, Ryusaku Hida
  • Patent number: D972989
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: December 20, 2022
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Masato Ogawa, Koji Miyamoto, Maki Ogawa, Mai Utagawa, Masahiro Kagekata, Yumi Kumagai