Patents by Inventor Satoshi Iwanami

Satoshi Iwanami 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: 10769505
    Abstract: An optical sensor device includes a first light source, a second light source, a sensor, and control circuitry. The first light source has a plurality of peak wavelengths in a wavelength range of 400 nm to 780 nm. The second light source emits ultraviolet light. The control circuitry adjusts a light amount of the first light source based on an output of the sensor in a state the first light source is on and the second light source is off, adjusts a light amount of the second light source based on an output of the sensor in a state the second light source is on and the first light source is off, and acquires a correction value of data output by the sensor, based on an output of the sensor in a state each of the first and second light sources is on with the light amount adjusted.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: September 8, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Iwanami, Nobuyuki Satoh, Hirohito Murate
  • Patent number: 10771646
    Abstract: A reading device includes a position reference member and a reader. The position reference member has a reference pattern that includes a line extending in a prescribed direction. The position reference member is configured to relatively move in a direction orthogonal to the prescribed direction. The reader includes a plurality of sensor chips, each of the sensor chips including a plurality of pixels. The reference pattern corresponds to each of the sensor chips of the reader.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: September 8, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Tatsuya Ishii, Yoshiko Niki, Satoshi Iwanami, Osamu Inage, Shinichiroh Wada, Masamoto Nakazawa, Ryohma Ikemoto, Daisuke Nikaku
  • Patent number: 10766282
    Abstract: An image forming apparatus includes a conveyance device to convey a recording medium in a first direction and a second direction opposite the first direction; an image forming device; an imaging device; and circuitry to control the image forming apparatus. Controlled by the circuitry, the image forming device forms the colorimetric pattern on the recording medium that has been conveyed in the first direction by a predetermined distance after the marker pattern is formed. Controlled by the circuitry, after the colorimetric pattern is fixed, the circuitry causes the conveyance device to convey the recording medium in the second direction by an amount equivalent to a distance from the marker pattern to an imaging position by the imaging device plus a margin, conveys the recording medium in the first direction until the imaging device detects the marker pattern, and conveys the recording medium in the first direction to a colorimetry position.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: September 8, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Masayuki Fujii, Nobuyuki Satoh, Suguru Masunaga, Satoshi Iwanami
  • Publication number: 20190294935
    Abstract: An optical sensor device includes a first light source, a second light source, a sensor, and control circuitry. The first light source has a plurality of peak wavelengths in a wavelength range of 400 nm to 780 nm. The second light source emits ultraviolet light. The control circuitry adjusts a light amount of the first light source based on an output of the sensor in a state the first light source is on and the second light source is off, adjusts a light amount of the second light source based on an output of the sensor in a state the second light source is on and the first light source is off, and acquires a correction value of data output by the sensor, based on an output of the sensor in a state each of the first and second light sources is on with the light amount adjusted.
    Type: Application
    Filed: March 18, 2019
    Publication date: September 26, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Satoshi Iwanami, Nobuyuki Satoh, Hirohito Murate
  • Publication number: 20190283469
    Abstract: An image forming apparatus includes a conveyance device to convey a recording medium in a first direction and a second direction opposite the first direction; an image forming device; an imaging device; and circuitry to control the image forming apparatus. Controlled by the circuitry, the image forming device forms the colorimetric pattern on the recording medium that has been conveyed in the first direction by a predetermined distance after the marker pattern is formed. Controlled by the circuitry, after the colorimetric pattern is fixed, the circuitry causes the conveyance device to convey the recording medium in the second direction by an amount equivalent to a distance from the marker pattern to an imaging position by the imaging device plus a margin, conveys the recording medium in the first direction until the imaging device detects the marker pattern, and conveys the recording medium in the first direction to a colorimetry position.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Masayuki Fujii, Nobuyuki Satoh, Suguru Masunaga, Satoshi Iwanami
  • Publication number: 20190166274
    Abstract: A reading device includes a position reference member and a reader. The position reference member has a reference pattern that includes a line extending in a prescribed direction. The position reference member is configured to relatively move in a direction orthogonal to the prescribed direction. The reader includes a plurality of sensor chips, each of the sensor chips including a plurality of pixels. The reference pattern corresponds to each of the sensor chips of the reader.
    Type: Application
    Filed: October 9, 2018
    Publication date: May 30, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Tatsuya Ishii, Yoshiko Niki, Satoshi Iwanami, Osamu Inage, Shinichiroh Wada, Masamoto Nakazawa, Ryohma Ikemoto, Daisuke Nikaku
  • Publication number: 20190166275
    Abstract: A reading device including a position reference member having a reference pattern having a line extending along a first direction of the position reference member, the position reference member movable in a second direction orthogonal to the first direction; a reader including a plurality of sensor chips arranged along the first direction, each of the sensor chips having a length defined by a plurality of pixels; and circuitry. The circuitry is configured to detect the reference pattern of the position reference member using the reader; determine coordinates of at least two sensor chips in the second direction, based on the detected reference pattern of the position reference member; and correct a position of a reading target in the second direction based on the coordinates determined for the at least two sensor chips of the reader in the second direction.
    Type: Application
    Filed: October 9, 2018
    Publication date: May 30, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Tatsuya Ishii, Satoshi Iwanami, Daisuke Nikaku, Masamoto Nakazawa, Osamu Inage, Shinichiroh Wada, Ryohma Ikemoto
  • Publication number: 20190163112
    Abstract: A position detector includes a reading device, a position reference member having a mark opposite the reading device, and circuitry. The circuitry controls the reading device to detect the contour of the processing target and the position of the image pattern on the processing target and the position of the mark and corrects a processing position for the processing target to offset distortion of the reading device.
    Type: Application
    Filed: September 19, 2018
    Publication date: May 30, 2019
    Inventors: Daisuke Nikaku, Masamoto Nakazawa, Ryohma Ikemoto, Osamu Inage, Tatsuya Ishii, Satoshi Iwanami, Hideyo Makino, Kimiharu Yamazaki, Kohta Aoyagi, Satoshi Nakayama
  • Patent number: 9355340
    Abstract: An image capturing device includes an image capturing unit, a moving unit, a detector, and a determiner. The image capturing unit includes an optical transmission member; and a sensor capturing an image of the subject via the optical transmission member. The moving unit moves the image capturing unit in an optical axis direction of the sensor. The detector detects a contamination from first and second images. The first and second images are captured by the sensor when the image capturing unit is located at first and second positions in the optical axis direction, respectively. The second position is spaced away from the subject than the first position in the optical axis direction. The determiner determines that a contamination is deposited on the optical transmission member when a difference in the number of pixels in which a contamination is detected between the first and second images is less than a threshold.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: May 31, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hideaki Suzuki, Kazushi Takei, Satoshi Iwanami, Masahiro Shigemoto, Nobuyuki Satoh
  • Patent number: 9286551
    Abstract: An image capturing unit includes a sensor section that images a predetermined range including a subject; a reference chart section that is imaged by the sensor section with the subject; and an illumination light source that illuminates the subject and the reference chart section. The illumination light source is arranged at a position where a mirror reflection region that mirror reflects light entering from the illumination light source to the sensor section is outside a region of the subject and the reference chart section.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: March 15, 2016
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Suguru Yokozawa, Nobuyuki Satoh, Yasuyuki Suzuki, Masato Kobayashi, Yuichi Sakurada, Mamoru Yorimoto, Tatsuhiko Okada, Daisaku Horikawa, Masahiro Shigemoto, Kazushi Takei, Hideaki Suzuki, Satoshi Iwanami
  • Patent number: 9288367
    Abstract: A glossiness determining device includes: a light source; a two-dimensional sensor that receives reflected light containing a specular reflection component of a subject illuminated by the light source, and outputs an image of the subject; and a determining unit that determines glossiness of the subject by using a saturated image, which is the image of the subject output by the two-dimensional sensor and in which pixel values of a partial area are saturated.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: March 15, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Satoshi Hirata, Nobuyuki Satoh, Yasuyuki Suzuki, Hideaki Suzuki, Satoshi Iwanami, Mamoru Yorimoto, Masayuki Fujii, Masato Kobayashi, Hiroshi Matsumoto
  • Patent number: 9270836
    Abstract: A color measuring device includes a housing; a sensor unit configured to capture an image of a region, the sensor unit being held to the housing; an illumination light source configured to illuminate the region, the illumination light source being held to the housing; a detecting unit configured to detect a distance between predetermined two points from image data of the region obtained by the sensor unit; a correcting unit configured to correct the image data including a subject whose color is to be measured according to a ratio of the detected distance to a reference distance; and a calculating unit configured to calculate a colorimetric value of the subject based on the corrected image data.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: February 23, 2016
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Masahiro Shigemoto, Nobuyuki Satoh, Kazushi Takei, Hideaki Suzuki, Satoshi Iwanami
  • Publication number: 20150109646
    Abstract: An image capturing unit includes a sensor section that images a predetermined range including a subject; a reference chart section that is imaged by the sensor section with the subject; and an illumination light source that illuminates the subject and the reference chart section. The illumination light source is arranged at a position where a mirror reflection region that mirror reflects light entering from the illumination light source to the sensor section is outside a region of the subject and the reference chart section.
    Type: Application
    Filed: December 29, 2014
    Publication date: April 23, 2015
    Inventors: Suguru YOKOZAWA, Nobuyuki Satoh, Yasuyuki Suzuki, Masato Kobayashi, Yuichi Sakurada, Mamoru Yorimoto, Tatsuhiko Okada, Daisaku Horikawa, Masahiro Shigemoto, Kazushi Takei, Hideaki Suzuki, Satoshi Iwanami
  • Publication number: 20150085305
    Abstract: An image capturing device includes an image capturing unit, a moving unit, a detector, and a determiner. The image capturing unit includes an optical transmission member; and a sensor capturing an image of the subject via the optical transmission member. The moving unit moves the image capturing unit in an optical axis direction of the sensor. The detector detects a contamination from first and second images. The first and second images are captured by the sensor when the image capturing unit is located at first and second positions in the optical axis direction, respectively. The second position is spaced away from the subject than the first position in the optical axis direction. The determiner determines that a contamination is deposited on the optical transmission member when a difference in the number of pixels in which a contamination is detected between the first and second images is less than a threshold.
    Type: Application
    Filed: November 26, 2014
    Publication date: March 26, 2015
    Inventors: Hideaki Suzuki, Kazushi Takei, Satoshi Iwanami, Masahiro Shigemoto, Nobuyuki Satoh
  • Publication number: 20150070737
    Abstract: A glossiness determining device includes: a light source; a two-dimensional sensor that receives reflected light containing a specular reflection component of a subject illuminated by the light source, and outputs an image of the subject; and a determining unit that determines glossiness of the subject by using a saturated image, which is the image of the subject output by the two-dimensional sensor and in which pixel values of a partial area are saturated.
    Type: Application
    Filed: September 10, 2014
    Publication date: March 12, 2015
    Applicant: Ricoh Company, Ltd.
    Inventors: Satoshi Hirata, Nobuyuki Satoh, Yasuyuki Suzuki, Hideaki Suzuki, Satoshi Iwanami, Mamoru Yorimoto, Masayuki Fujii, Masato Kobayashi, Hiroshi Matsumoto
  • Patent number: 8947724
    Abstract: An image capturing unit includes a sensor section that images a predetermined range including a subject; a reference chart section that is imaged by the sensor section with the subject; and an illumination light source that illuminates the subject and the reference chart section. The illumination light source is arranged at a position where a mirror reflection region that mirror reflects light entering from the illumination light source to the sensor section is outside a region of the subject and the reference chart section.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: February 3, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Suguru Yokozawa, Nobuyuki Satoh, Yasuyuki Suzuki, Masato Kobayashi, Yuichi Sakurada, Mamoru Yorimoto, Tatsuhiko Okada, Daisaku Horikawa, Masahiro Shigemoto, Kazushi Takei, Hideaki Suzuki, Satoshi Iwanami
  • Patent number: 8922831
    Abstract: An image capturing device includes an image capturing unit, a moving unit, a detector, and a determiner. The image capturing unit includes an optical transmission member; and a sensor capturing an image of the subject via the optical transmission member. The moving unit moves the image capturing unit in an optical axis direction of the sensor. The detector detects a contamination from first and second images. The first and second images are captured by the sensor when the image capturing unit is located at first and second positions in the optical axis direction, respectively. The second position is spaced away from the subject than the first position in the optical axis direction. The determiner determines that a contamination is deposited on the optical transmission member when a difference in the number of pixels in which a contamination is detected between the first and second images is less than a threshold.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: December 30, 2014
    Assignee: Ricoh Company, Limited
    Inventors: Hideaki Suzuki, Kazushi Takei, Satoshi Iwanami, Masahiro Shigemoto, Nobuyuki Satoh
  • Publication number: 20130258368
    Abstract: A color measuring device includes a housing; a sensor unit configured to capture an image of a region, the sensor unit being held to the housing; an illumination light source configured to illuminate the region, the illumination light source being held to the housing; a detecting unit configured to detect a distance between predetermined two points from image data of the region obtained by the sensor unit; a correcting unit configured to correct the image data including a subject whose color is to be measured according to a ratio of the detected distance to a reference distance; and a calculating unit configured to calculate a colorimetric value of the subject based on the corrected image data.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 3, 2013
    Inventors: Masahiro Shigemoto, Nobuyuki Satoh, Kazushi Takei, Hideaki Suzuki, Satoshi Iwanami
  • Publication number: 20130258369
    Abstract: An image capturing device includes an image capturing unit, a moving unit, a detector, and a determiner. The image capturing unit includes an optical transmission member; and a sensor capturing an image of the subject via the optical transmission member. The moving unit moves the image capturing unit in an optical axis direction of the sensor. The detector detects a contamination from first and second images. The first and second images are captured by the sensor when the image capturing unit is located at first and second positions in the optical axis direction, respectively. The second position is spaced away from the subject than the first position in the optical axis direction. The determiner determines that a contamination is deposited on the optical transmission member when a difference in the number of pixels in which a contamination is detected between the first and second images is less than a threshold.
    Type: Application
    Filed: March 28, 2013
    Publication date: October 3, 2013
    Inventors: Hideaki SUZUKI, Kazushi Takei, Satoshi Iwanami, Masahiro Shigemoto, Nobuyuki Satoh
  • Publication number: 20130229671
    Abstract: An image capturing unit includes a sensor section that images a predetermined range including a subject; a reference chart section that is imaged by the sensor section with the subject; and an illumination light source that illuminates the subject and the reference chart section. The illumination light source is arranged at a position where a mirror reflection region that mirror reflects light entering from the illumination light source to the sensor section is outside a region of the subject and the reference chart section.
    Type: Application
    Filed: February 28, 2013
    Publication date: September 5, 2013
    Inventors: Suguru YOKOZAWA, Nobuyuki Satoh, Yasuyuki Suzuki, Masato Kobayashi, Yuichi Sakurada, Mamoru Yorimoto, Tatsuhiko Okada, Daisaku Horikawa, Masahiro Shigemoto, Kazushi Takei, Hideaki Suzuki, Satoshi Iwanami