Patents by Inventor Yuuki Satoh

Yuuki Satoh 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: 20220099968
    Abstract: A projector includes an image forming unit configured to emit image light that forms an image and an imaging optical system configured to form an image by reflecting the image light. S magnification power at a point of the imaging optical system where the image light is incident and optical-path length between the image forming unit and the imaging optical system is short is made higher than a magnification power at a point of the imaging optical system where the image light is incident and the optical-path length between the image forming unit and the imaging optical system is long.
    Type: Application
    Filed: February 25, 2020
    Publication date: March 31, 2022
    Inventors: Yuuki SATOH, Kazuhiro FUJITA
  • Patent number: 11275327
    Abstract: A toner container includes a container body, an opening, a cover, a toner discharge port, a shutter, a cylindrical structure, protrusions, and an identifier. The shutter is attached to the cover and includes a main shutter covering the toner discharge port. The main shutter moves between a closed position to close the toner discharge port and an open position to open the toner discharge port. The protrusions are on both sides of the cover and protrude in a direction orthogonal to a toner container mounting direction. The identifier is on the cover to indicate a toner color. The cylindrical structure's leading end is downstream of leading ends of the protrusions in the mounting direction. The main shutter's leading end is downstream of the protrusions' leading ends in the mounting direction when the main shutter is in the closed position. The protrusions are downstream of the identifier in the mounting direction.
    Type: Grant
    Filed: July 27, 2021
    Date of Patent: March 15, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yasufumi Takahashi, Kunihiro Ohyama, Masayuki Yamane, Takeshi Uchitani, Tadashi Hayakawa, Takuji Takahashi, Shouji Okabe, Akira Shinshi, Yuichiro Ueda, Masaki Takahashi, Yuuki Satoh
  • Patent number: 11188007
    Abstract: A toner container includes a container body, an opening, a cover, a toner discharge port, a shutter, a cylindrical structure, protrusions, and an identifier. The shutter is attached to the cover and includes a main shutter covering the toner discharge port. The main shutter moves between a closed position to close the toner discharge port and an open position to open the toner discharge port. The protrusions are on both sides of the cover and protrude in a direction orthogonal to a toner container mounting direction. The identifier is on the cover to indicate a toner color. The cylindrical structure's leading end is downstream of leading ends of the protrusions in the mounting direction. The main shutter's leading end is downstream of the protrusions' leading ends in the mounting direction when the main shutter is in the closed position. The protrusions are downstream of the identifier in the mounting direction.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: November 30, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yasufumi Takahashi, Kunihiro Ohyama, Masayuki Yamane, Takeshi Uchitani, Tadashi Hayakawa, Takuji Takahashi, Shouji Okabe, Akira Shinshi, Yuichiro Ueda, Masaki Takahashi, Yuuki Satoh
  • Publication number: 20210356884
    Abstract: A toner container includes a container body, an opening, a cover, a toner discharge port, a shutter, a cylindrical structure, protrusions, and an identifier. The shutter is attached to the cover and includes a main shutter covering the toner discharge port. The main shutter moves between a closed position to close the toner discharge port and an open position to open the toner discharge port. The protrusions are on both sides of the cover and protrude in a direction orthogonal to a toner container mounting direction. The identifier is on the cover to indicate a toner color. The cylindrical structure's leading end is downstream of leading ends of the protrusions in the mounting direction. The main shutter's leading end is downstream of the protrusions' leading ends in the mounting direction when the main shutter is in the closed position. The protrusions are downstream of the identifier in the mounting direction.
    Type: Application
    Filed: July 27, 2021
    Publication date: November 18, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Yasufumi TAKAHASHI, Kunihiro OHYAMA, Masayuki YAMANE, Takeshi UCHITANI, Tadashi HAYAKAWA, Takuji TAKAHASHI, Shouji OKABE, Akira SHINSHI, Yuichiro UEDA, Masaki TAKAHASHI, Yuuki SATOH
  • Patent number: 11061227
    Abstract: A display device includes an image forming unit to form an image and project the image on a transmissive reflector to display a virtual image, an optical element to direct light of the image to the transmissive reflector, a wavelength selective mirror disposed between the image forming unit and the optical element and to separate infrared light from a light beam, and a shielding part to shield or attenuate infrared light. The optical element condenses external light travelling along an optical path opposite to an optical path of the light diffused. The wavelength selective mirror separates infrared light included in the external light condensed by the optical element, and the shielding part is disposed between the wavelength selective mirror and a focal point of the infrared light separated by the wavelength selective mirror. An apparatus includes the display device and the transmissive reflector.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: July 13, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kazuhiro Fujita, Yuuki Satoh, Maiko Yasui, Takehide Ohno
  • Patent number: 11048081
    Abstract: A display device, a display system, and a mobile object. The display device includes an image forming unit through which image light exits, an imaging optical system having a reflection plane and configured to form an image by reflecting the image light on the reflection plane, and a housing accommodating the image forming unit and the imaging optical system. The housing has a transmissive area through which the image light reflected by the imaging optical system passes through, and an inclination of the reflection plane is changed to reduce a project area of the reflection plane. The project area is projected to outside of the housing through the transmissive area. The display system includes the display device, and a reflector configured to reflect the image light reflected by the imaging optical system. The mobile object includes the display system, and the reflector is a front windshield.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: June 29, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yuuki Satoh, Kazuhiro Fujita, Maiko Yasui
  • Patent number: 10976544
    Abstract: A display device and an apparatus. The display device includes light emitter to emit light, an image generator to generate image light using the light emitted from the light emitter, a diffusion plate configured to diffuse the image light, and a light condensing element to receive and condense the image light diffused by the diffusion plate. A component in an optical path between the light emitter and the diffusion plate is disposed at a position different from a position of a light condensing portion of external light having transmitted through the diffusion plate via the light condensing element. The apparatus includes a light emitter to emit light, an image generator to generate image light using the light emitted from the light emitter, a diffusion plate to diffuse the image light, and a concave mirror to reflect the image light diffused by the diffusion plate to a transmission reflection member.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: April 13, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yuuki Satoh, Kazuhiro Fujita
  • Publication number: 20210088933
    Abstract: A toner container includes a container body, an opening, a cover, a toner discharge port, a shutter, a cylindrical structure, protrusions, and an identifier. The shutter is attached to the cover and includes a main shutter covering the toner discharge port. The main shutter moves between a closed position to close the toner discharge port and an open position to open the toner discharge port. The protrusions are on both sides of the cover and protrude in a direction orthogonal to a toner container mounting direction. The identifier is on the cover to indicate a toner color. The cylindrical structure's leading end is downstream of leading ends of the protrusions in the mounting direction. The main shutter's leading end is downstream of the protrusions' leading ends in the mounting direction when the main shutter is in the closed position. The protrusions are downstream of the identifier in the mounting direction.
    Type: Application
    Filed: December 3, 2020
    Publication date: March 25, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Yasufumi TAKAHASHI, Kunihiro OHYAMA, Masayuki YAMANE, Takeshi UCHITANI, Tadashi HAYAKAWA, Takuji TAKAHASHI, Shouji OKABE, Akira SHINSHI, Yuichiro UEDA, Masaki TAKAHASHI, Yuuki SATOH
  • Publication number: 20210033861
    Abstract: A display system includes an optical element through which light diverges and an imaging optical system configured to form an image by projecting diverging light diverging through the optical element. In the display system, the image formed by the imaging optical system is visually recognized by a viewer, and a condition in an equation tan 0?(T×B)/(S×O) is satisfied, where ? denotes a divergence angle of the optical element, T denotes distance between the image forming optical system and the formed image, B denotes a range of an eye box that is an area through which the formed image can visually be recognized, S denotes distance between the formed image and a viewpoint of the viewer of the formed image, and O denotes distance between the optical element and the image forming optical system. In the above equation, each distance indicates length of an optical path that passes through a center of an image formed by the light when an object is observed from a reference eyepoint.
    Type: Application
    Filed: April 15, 2019
    Publication date: February 4, 2021
    Inventors: Kento NAKAMURA, Shimpei OGINO, Yuuki SATOH
  • Publication number: 20200348615
    Abstract: A toner container includes a container body, an opening, a cover, a toner discharge port, a shutter, a cylindrical structure, protrusions, and an identifier. The shutter is attached to the cover and includes a main shutter covering the toner discharge port. The main shutter moves between a closed position to close the toner discharge port and an open position to open the toner discharge port. The protrusions are on both sides of the cover and protrude in a direction orthogonal to a toner container mounting direction. The identifier is on the cover to indicate a toner color. The cylindrical structure's leading end is downstream of leading ends of the protrusions in the mounting direction. The main shutter's leading end is downstream of the protrusions' leading ends in the mounting direction when the main shutter is in the closed position. The protrusions are downstream of the identifier in the mounting direction.
    Type: Application
    Filed: July 15, 2020
    Publication date: November 5, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Yasufumi TAKAHASHI, Kunihiro OHYAMA, Masayuki YAMANE, Takeshi UCHITANI, Tadashi HAYAKAWA, Takuji TAKAHASHI, Shouji OKABE, Akira SHINSHI, Yuichiro UEDA, Masaki TAKAHASHI, Yuuki SATOH
  • Patent number: 10754275
    Abstract: A toner container includes a container body, an opening, a cover, a toner discharge port, a shutter, a cylindrical structure, protrusions, and an identifier. The shutter is attached to the cover and includes a main shutter covering the toner discharge port. The main shutter moves between a closed position to close the toner discharge port and an open position to open the toner discharge port. The protrusions are on both sides of the cover and protrude in a direction orthogonal to a toner container mounting direction. The identifier is on the cover to indicate a toner color. The cylindrical structure's leading end is downstream of leading ends of the protrusions in the mounting direction. The main shutter's leading end is downstream of the protrusions' leading ends in the mounting direction when the main shutter is in the closed position. The protrusions are downstream of the identifier in the mounting direction.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: August 25, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yasufumi Takahashi, Kunihiro Ohyama, Masayuki Yamane, Takeshi Uchitani, Tadashi Hayakawa, Takuji Takahashi, Shouji Okabe, Akira Shinshi, Yuichiro Ueda, Masaki Takahashi, Yuuki Satoh
  • Patent number: 10725398
    Abstract: A toner container includes a container body, an opening, a cover, a toner discharge port, a shutter, a cylindrical structure, protrusions, and an identifier. The shutter is attached to the cover and includes a main shutter covering the toner discharge port. The main shutter moves between a closed position to close the toner discharge port and an open position to open the toner discharge port. The protrusions are on both sides of the cover and protrude in a direction orthogonal to a toner container mounting direction. The identifier is on the cover to indicate a toner color. The cylindrical structure's leading end is downstream of leading ends of the protrusions in the mounting direction. The main shutter's leading end is downstream of the protrusions' leading ends in the mounting direction when the main shutter is in the closed position. The protrusions are downstream of the identifier in the mounting direction.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: July 28, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yasufumi Takahashi, Kunihiro Ohyama, Masayuki Yamane, Takeshi Uchitani, Tadashi Hayakawa, Takuji Takahashi, Shouji Okabe, Akira Shinshi, Yuichiro Ueda, Masaki Takahashi, Yuuki Satoh
  • Publication number: 20200150433
    Abstract: A display device, a display system, and a mobile object. The display device includes an image forming unit through which image light exits, an imaging optical system having a reflection plane and configured to form an image by reflecting the image light on the reflection plane, and a housing accommodating the image forming unit and the imaging optical system. The housing has a transmissive area through which the image light reflected by the imaging optical system passes through, and an inclination of the reflection plane is changed to reduce a project area of the reflection plane. The project area is projected to outside of the housing through the transmissive area. The display system includes the display device, and a reflector configured to reflect the image light reflected by the imaging optical system. The mobile object includes the display system, and the reflector is a front windshield.
    Type: Application
    Filed: October 21, 2019
    Publication date: May 14, 2020
    Inventors: Yuuki SATOH, Kazuhiro FUJITA, Maiko YASUI
  • Publication number: 20200026220
    Abstract: A toner container includes a container body, an opening, a cover, a toner discharge port, a shutter, a cylindrical structure, protrusions, and an identifier. The shutter is attached to the cover and includes a main shutter covering the toner discharge port. The main shutter moves between a closed position to close the toner discharge port and an open position to open the toner discharge port. The protrusions are on both sides of the cover and protrude in a direction orthogonal to a toner container mounting direction. The identifier is on the cover to indicate a toner color. The cylindrical structure's leading end is downstream of leading ends of the protrusions in the mounting direction. The main shutter's leading end is downstream of the protrusions' leading ends in the mounting direction when the main shutter is in the closed position. The protrusions are downstream of the identifier in the mounting direction.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Yasufumi TAKAHASHI, Kunihiro OHYAMA, Masayuki YAMANE, Takeshi UCHITANI, Tadashi HAYAKAWA, Takuji TAKAHASHI, Shouji OKABE, Akira SHINSHI, Yuichiro UEDA, Masaki TAKAHASHI, Yuuki SATOH
  • Patent number: 10496009
    Abstract: A toner container includes a container body, an opening, a cover, a toner discharge port, a shutter, a cylindrical structure, protrusions, and an identifier. The shutter is attached to the cover and includes a main shutter covering the toner discharge port. The main shutter moves between a closed position to close the toner discharge port and an open position to open the toner discharge port. The protrusions are on both sides of the cover and protrude in a direction orthogonal to a toner container mounting direction. The identifier is on the cover to indicate a toner color. The cylindrical structure's leading end is downstream of leading ends of the protrusions in the mounting direction. The main shutter's leading end is downstream of the protrusions' leading ends in the mounting direction when the main shutter is in the closed position. The protrusions are downstream of the identifier in the mounting direction.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: December 3, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yasufumi Takahashi, Kunihiro Ohyama, Masayuki Yamane, Takeshi Uchitani, Tadashi Hayakawa, Takuji Takahashi, Shouji Okabe, Akira Shinshi, Yuichiro Ueda, Masaki Takahashi, Yuuki Satoh
  • Publication number: 20190285884
    Abstract: A display device includes an image forming unit to form an image and project the image on a transmissive reflector to display a virtual image, an optical element to direct light of the image to the transmissive reflector, a wavelength selective mirror disposed between the image forming unit and the optical element and to separate infrared light from a light beam, and a shielding part to shield or attenuate infrared light. The optical element condenses external light travelling along an optical path opposite to an optical path of the light diffused. The wavelength selective mirror separates infrared light included in the external light condensed by the optical element, and the shielding part is disposed between the wavelength selective mirror and a focal point of the infrared light separated by the wavelength selective mirror. An apparatus includes the display device and the transmissive reflector.
    Type: Application
    Filed: February 7, 2019
    Publication date: September 19, 2019
    Applicant: RICOH COMPANY, LTD.
    Inventors: Kazuhiro FUJITA, Yuuki SATOH, Maiko YASUI, Takehide OHNO
  • Publication number: 20190285885
    Abstract: A display device and an apparatus. The display device includes light emitter to emit light, an image generator to generate image light using the light emitted from the light emitter, a diffusion plate configured to diffuse the image light, and a light condensing element to receive and condense the image light diffused by the diffusion plate. A component in an optical path between the light emitter and the diffusion plate is disposed at a position different from a position of a light condensing portion of external light having transmitted through the diffusion plate via the light condensing element. The apparatus includes a light emitter to emit light, an image generator to generate image light using the light emitted from the light emitter, a diffusion plate to diffuse the image light, and a concave mirror to reflect the image light diffused by the diffusion plate to a transmission reflection member.
    Type: Application
    Filed: February 8, 2019
    Publication date: September 19, 2019
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yuuki SATOH, Kazuhiro Fujita
  • Publication number: 20180253028
    Abstract: A toner container includes a container body, an opening, a cover, a toner discharge port, a shutter, a cylindrical structure, protrusions, and an identifier. The shutter is attached to the cover and includes a main shutter covering the toner discharge port. The main shutter moves between a closed position to close the toner discharge port and an open position to open the toner discharge port. The protrusions are on both sides of the cover and protrude in a direction orthogonal to a toner container mounting direction. The identifier is on the cover to indicate a toner color. The cylindrical structure's leading end is downstream of leading ends of the protrusions in the mounting direction. The main shutter's leading end is downstream of the protrusions' leading ends in the mounting direction when the main shutter is in the closed position. The protrusions are downstream of the identifier in the mounting direction.
    Type: Application
    Filed: May 3, 2018
    Publication date: September 6, 2018
    Inventors: Yasufumi TAKAHASHI, Kunihiro OHYAMA, Masayuki YAMANE, Takeshi UCHITANI, Tadashi HAYAKAWA, Takuji TAKAHASHI, Shouji OKABE, Akira SHINSHI, Yuichiro UEDA, Masaki TAKAHASHI, Yuuki SATOH
  • Patent number: 9989887
    Abstract: An information storage device installed in a removable device configured to be removably installed in an image forming apparatus body, includes: an information storage unit that stores information communicated between the image forming apparatus body and the removable device; a terminal that comes in contact with a body side terminal; and a substrate that holds the information storage unit and the terminal and includes a hole configured to be engaged with a protruding section installed in the image forming apparatus body. The terminal includes a plurality of terminals each including one of a plurality of metallic plates arranged in a transverse direction thereof. An earth terminal, which comes in contact with a body side earth terminal formed in the protruding section, is formed in the hole. The hole is disposed at a position sandwiched between two metallic plates among the plurality of metallic plates.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: June 5, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yasufumi Takahashi, Kunihiro Ohyama, Masayuki Yamane, Takeshi Uchitani, Tadashi Hayakawa, Takuji Takahashi, Shouji Okabe, Akira Shinshi, Yuichiro Ueda, Masaki Takahashi, Yuuki Satoh
  • Publication number: 20170153572
    Abstract: An information storage device installed in a removable device configured to be removably installed in an image forming apparatus body, includes: an information storage unit that stores information communicated between the image forming apparatus body and the removable device; a terminal that comes in contact with a body side terminal; and a substrate that holds the information storage unit and the terminal and includes a hole configured to be engaged with a protruding section installed in the image forming apparatus body. The terminal includes a plurality of terminals each including one of a plurality of metallic plates arranged in a transverse direction thereof. An earth terminal, which comes in contact with a body side earth terminal formed in the protruding section, is formed in the hole. The hole is disposed at a position sandwiched between two metallic plates among the plurality of metallic plates.
    Type: Application
    Filed: February 10, 2017
    Publication date: June 1, 2017
    Inventors: Yasufumi TAKAHASHI, Kunihiro OHYAMA, Masayuki YAMANE, Takeshi UCHITANI, Tadashi HAYAKAWA, Takuji TAKAHASHI, Shouji OKABE, Akira SHINSHI, Yuichiro UEDA, Masaki TAKAHASHI, Yuuki SATOH