Patents by Inventor Hideki Hashimoto

Hideki Hashimoto 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: 20210269327
    Abstract: An iron oxide powder which has an aluminum content of from 10 mol % to 80 mol % (inclusive), and which is composed of porous structures that have a diameter of from 0.3 ?m to 2 ?m (inclusive).
    Type: Application
    Filed: June 21, 2019
    Publication date: September 2, 2021
    Applicant: KOGAKUIN UNIVERSITY et al.
    Inventors: Hideki Hashimoto, Hidetaka Asoh, Jun Takada, Tatsuo Fujii
  • Publication number: 20210218860
    Abstract: An image reading device includes a light source configured to irradiate a subject; a reading unit configured to detect reflected light generated by a subject reflecting light emitted from the light source, to perform reading; and a control unit configured to perform turn-on control on the light source. The control unit is configured to perform the turn-on control to change a turn-on condition such that the light source is turned on during a period when at least a detection region including an image pattern on the subject passes through a reading position of a reading unit, based on position information of the image pattern of the subject in a first operation mode for reading the subject, and perform the turn-on control to make the turn-on condition of the light source constant regardless of the image pattern of the subject in a second operation mode for reading the subject.
    Type: Application
    Filed: January 5, 2021
    Publication date: July 15, 2021
    Inventors: Daisuke NIKAKU, Tatsuya ISHII, Hideki HASHIMOTO, Yutaka OHMIYA, Takayuki KAWAMOTO
  • Publication number: 20210014441
    Abstract: An abnormal-pixel detecting device includes an image sensor and an image processor. The image sensor is configured to capture an image of a subject. The image processor is configured to calculate: a ratio between a first plurality of pixel values captured by the image sensor and a second plurality of pixel values whose reference position is shifted relative to the first plurality of pixel values in a main scanning direction to obtain a third plurality of pixel values; and detect an abnormal pixel in the third plurality of pixel values.
    Type: Application
    Filed: July 10, 2020
    Publication date: January 14, 2021
    Inventors: Yutaka OHMIYA, Hideki HASHIMOTO, Masamoto NAKAZAWA
  • Patent number: 10834292
    Abstract: An image processing apparatus includes an image forming device, a reading device, and circuitry. The image forming device is configured to form a first pattern on a recording medium. The first pattern includes a plurality of patches in a plurality of tones. The reading device is configured to read the first pattern. The circuitry is configured to acquire read data of the first pattern from the reading device. The read data includes red, green, and blue (RGB) color space values. The circuitry is further configured to: correct the read data based on information indicating a relationship between a color and a position in the first pattern to reduce variation in readings due to a read position of the first pattern; convert the read data corrected into device-independent data; and adjust a color reproduction characteristic of the image forming device based on the device-independent data.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: November 10, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Manabu Komatsu, Hideki Hashimoto, Masamoto Nakazawa
  • Patent number: 10827101
    Abstract: A color inspection device includes a reading device and circuitry. The reading device images a reference object and a color detection object to obtain readings of each of the reference object and the color detection object. The circuitry corrects the readings of the color detection object by using a correction coefficient that is generated from the readings of the reference object and color information measured for each arbitrary region of the reference object.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: November 3, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideki Hashimoto, Masamoto Nakazawa, Manabu Komatsu, Yoshio Konno
  • Patent number: 10757280
    Abstract: An image reader includes a reading device to read an image on a recording medium, a first conveying roller pair upstream of the reading device in a conveyance direction of the recording medium, a second conveying roller pair downstream of the reading device in the conveyance direction, to hold the recording medium together with the first conveying roller pair to convey the recording medium, and a driver to drive the first conveying roller pair and the second conveying roller pair so that a relative relation between a reading position of the reading device and the recording medium held by the first conveying roller pair and the second conveying roller pair is constant. The reading device determines that the image read from the recording medium is effective in a period in which the relative relation is constant.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: August 25, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Osamu Inage, Masamoto Nakazawa, Daisuke Nikaku, Ryohma Ikemoto, Hideki Hashimoto, Shinichiroh Wada
  • Patent number: 10735625
    Abstract: An information detecting device detects information from a target. The information detecting device includes processing circuitry. The processing circuitry is configured to perform a first information acquisition operation of acquiring first information from a target criterion, a second information acquisition operation of acquiring second information from the target, and an information conversion operation of converting the second information acquired by the second information acquisition operation, into third information, with the first information acquired by the first information acquisition operation, the third information having a dimension different from respective dimensions of the first information and the second information; and perform control such that an information-acquisition condition in the first information acquisition operation is identical to an information-acquisition condition in the second information acquisition operation.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: August 4, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Masamoto Nakazawa, Hideki Hashimoto, Daisuke Nikaku
  • Publication number: 20200038842
    Abstract: A metal compound-graphene oxide composite that can be used for manufacture of hydrogen. A composite has graphene oxide and at least one metal compound selected from cobalt compounds, nickel compounds, and molybdenum compounds. If the metal compound includes a cobalt compound or a nickel compound, in the infrared absorption spectrum of the complex, absorption derived from C—O groups is present and absorptions derived from O—H groups and C?O groups and absorption derived from bonds between graphene oxide and cobalt or nickel via oxygen atoms are essentially absent. If the metal compound is a molybdenum compound, in the infrared absorption spectrum of the complex, absorptions derived from C—O groups, O—H groups, and C?O groups, and absorption derived from bonds between graphene oxide and cobalt or nickel via oxygen atoms, are all essentially absent.
    Type: Application
    Filed: October 5, 2017
    Publication date: February 6, 2020
    Inventors: Hideki HASHIMOTO, Kiyoshi ISOBE, Tomoko HORIBE, Yoshihiko SERA, Eiji YAMASHITA
  • Patent number: 10554849
    Abstract: A photoelectric conversion device includes a plurality of light receiving elements, a plurality of A/D conversion units, and an offset giving unit. The light receiving elements are arrayed in one direction and each convert a light signal into an electrical signal. The A/D conversion units perform A/D conversion on the electrical signals output from the light receiving elements. The offset giving unit gives an offset voltage of a certain level to the electrical signals output from the light receiving elements without flowing a steady current before the electrical signals are input into the A/D conversion units.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: February 4, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideki Hashimoto, Masamoto Nakazawa
  • Publication number: 20190387131
    Abstract: An image processing apparatus includes an image forming device, a reading device, and circuitry. The image forming device is configured to form a first pattern on a recording medium. The first pattern includes a plurality of patches in a plurality of tones. The reading device is configured to read the first pattern. The circuitry is configured to acquire read data of the first pattern from the reading device. The read data includes red, green, and blue (RGB) color space values. The circuitry is further configured to: correct the read data based on information indicating a relationship between a color and a position in the first pattern to reduce variation in readings due to a read position of the first pattern; convert the read data corrected into device-independent data; and adjust a color reproduction characteristic of the image forming device based on the device-independent data.
    Type: Application
    Filed: May 10, 2019
    Publication date: December 19, 2019
    Inventors: Manabu Komatsu, Hideki Hashimoto, Masamoto Nakazawa
  • Publication number: 20190358862
    Abstract: Damage of the outer surface of a rubber hose due to friction can be prevented while the sealing performance and the productivity are ensured. The following components are provided: a pipe 11 whose one end is connected to a vulcanization pipe and in which pressed liquid is pumped from an inlet 11a disposed at the side face of the other end side; an annular member 12 which is attached to the pipe 11 so as to close an opening of the other end side of the pipe 11, and includes a hole 12a whose diameter is larger than the outer diameter of a rubber hose and in which the rubber hose passes through; and a pump which pumps more liquid than the liquid discharged outside the pipe 11 through the gap between the hole 12a and the rubber hose into an inlet 11a.
    Type: Application
    Filed: May 2, 2017
    Publication date: November 28, 2019
    Applicant: NICHIRIN CO., LTD.
    Inventor: Hideki HASHIMOTO
  • Publication number: 20190335061
    Abstract: An information detecting device detects information from a target. The information detecting device includes processing circuitry. The processing circuitry is configured to perform a first information acquisition operation of acquiring first information from a target criterion, a second information acquisition operation of acquiring second information from the target, and an information conversion operation of converting the second information acquired by the second information acquisition operation, into third information, with the first information acquired by the first information acquisition operation, the third information having a dimension different from respective dimensions of the first information and the second information; and perform control such that an information-acquisition condition in the first information acquisition operation is identical to an information-acquisition condition in the second information acquisition operation.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 31, 2019
    Inventors: Masamoto NAKAZAWA, Hideki Hashimoto, Daisuke Nikaku
  • Publication number: 20190327387
    Abstract: A color inspection device includes a reading device and circuitry. The reading device images a reference object and a color detection object to obtain readings of each of the reference object and the color detection object. The circuitry corrects the readings of the color detection object by using a correction coefficient that is generated from the readings of the reference object and color information measured for each arbitrary region of the reference object.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 24, 2019
    Inventors: Hideki HASHIMOTO, Masamoto NAKAZAWA, Manabu KOMATSU, Yoshio KONNO
  • Publication number: 20190289163
    Abstract: A photoelectric conversion device includes a plurality of light receiving elements, a plurality of A/D conversion units, and an offset giving unit. The light receiving elements are arrayed in one direction and each convert a light signal into an electrical signal. The A/D conversion units perform A/D conversion on the electrical signals output from the light receiving elements. The offset giving unit gives an offset voltage of a certain level to the electrical signals output from the light receiving elements without flowing a steady current before the electrical signals are input into the A/D conversion units.
    Type: Application
    Filed: May 31, 2019
    Publication date: September 19, 2019
    Inventors: Hideki HASHIMOTO, Masamoto NAKAZAWA
  • Publication number: 20190238717
    Abstract: An image reader includes a reading device to read an image on a recording medium, a first conveying roller pair upstream of the reading device in a conveyance direction of the recording medium, a second conveying roller pair downstream of the reading device in the conveyance direction, to hold the recording medium together with the first conveying roller pair to convey the recording medium, and a driver to drive the first conveying roller pair and the second conveying roller pair so that a relative relation between a reading position of the reading device and the recording medium held by the first conveying roller pair and the second conveying roller pair is constant. The reading device determines that the image read from the recording medium is effective in a period in which the relative relation is constant.
    Type: Application
    Filed: January 24, 2019
    Publication date: August 1, 2019
    Inventors: Osamu INAGE, Masamoto NAKAZAWA, Daisuke NIKAKU, Ryohma IKEMOTO, Hideki HASHIMOTO, Shinichiroh WADA
  • Patent number: 10356272
    Abstract: A photoelectric conversion device includes a plurality of light receiving elements, a plurality of A/D conversion units, and an offset giving unit. The light receiving elements are arrayed in one direction and each convert a light signal into an electrical signal. The A/D conversion units perform A/D conversion on the electrical signals output from the light receiving elements. The offset giving unit gives an offset voltage of a certain level to the electrical signals output from the light receiving elements without flowing a steady current before the electrical signals are input into the A/D conversion units.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: July 16, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideki Hashimoto, Masamoto Nakazawa
  • Patent number: 10298866
    Abstract: A photoelectric conversion element includes: light receiving elements that convert an optical signal into an electrical signal per pixel; offset fixing units that fix an offset of an output level of each of the light receiving elements to a reference level; analog/digital conversion units that convert signals respectively corresponding to a signal level being converted from an optical signal and output by the light receiving elements and a reset level output independent of an optical signal, into digital signals, according to the reference level; amplifier units that amplify a signal; and correlated double sampling units that perform correlated double sampling per each of the light receiving elements by using a signal based on the reset level and a signal based on the signal level, wherein the amplifier units amplify the signal corresponding to the reset level and the signal corresponding to the signal level before implementing the correlated double sampling.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: May 21, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideki Hashimoto, Masamoto Nakazawa
  • Patent number: 10182177
    Abstract: A signal processing device includes a signal output circuit, a controller, and a corrector. The signal output circuit outputs a signal according to a physical quantity being input. The controller controls the signal output circuit. The corrector corrects a signal to be corrected. The signal to be corrected is output from the signal output circuit. The signal output circuit selectively performs one of first operation of outputting a characteristic signal that indicates characteristics of the signal output circuit and second operation of outputting a pseudo signal that is generated spuriously, according to control of the controller. The corrector corrects the signal to be corrected based on one of the characteristic signal and the pseudo signal output from the signal output circuit.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: January 15, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomohiro Sasa, Masamoto Nakazawa, Hiroki Shirado, Hideki Hashimoto
  • Publication number: 20190001307
    Abstract: Provided is a novel composite of an iron compound and a graphene oxide which is extremely useful as a photocatalyst or an active ingredient of an electrode. In this composite of an iron compound and graphene oxide, iron compound particles are supported on the graphene oxide.
    Type: Application
    Filed: March 25, 2016
    Publication date: January 3, 2019
    Inventors: Isamu KINOSHITA, Hideki HASHIMOTO, Kiyoshi ISOBE, Yoshihiko SERA, Eiji YAMASHITA, Tomoko HORIBE
  • Patent number: 10167988
    Abstract: A manufacturing work machine including a beam member arranged in an X-axis direction of an XY horizontal plane, both ends of the beam member being supported to be movable in the Y-axis direction; a Y-axis drive device provided on one drive side end section of the beam member, the Y-axis drive device being configured to move the beam member in the Y-axis direction; and an X-axis drive member configured to move a work head provided on the beam member in the X-axis direction, wherein the beam member is a tube with an internal hollow running through in the X-axis direction, and is formed such that a beam width in the Y-axis direction is uniform, and a height direction dimension becomes smaller from the drive side end section to an end section on another side.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: January 1, 2019
    Assignee: FUJI CORPORATION
    Inventors: Hideki Hashimoto, Atsushi Yamazaki, Kazuhisa Kamiyama