Patents by Inventor Takeshi Uchitani

Takeshi Uchitani 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: 11768448
    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 21, 2022
    Date of Patent: September 26, 2023
    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: 11740574
    Abstract: A lubricant replacement case for an image forming apparatus includes a housing including a plurality of storage compartments to accommodate at least one lubricant unit. The plurality of storage compartments include at least one storage compartment for unused lubricant to be inserted into the image forming apparatus and at least one storage compartment for used lubricant to be retrieved from the image forming apparatus.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: August 29, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Katsushi Higashida, Takeshi Uchitani
  • Publication number: 20230195027
    Abstract: An example lubricant coating device includes a rotatable applicator to apply lubricant from a solid lubricant source to a member to be coated, and a supporting device to support the solid lubricant source in a contact state with the rotatable applicator. The supporting device changes a supporting angle of the solid lubricant source relative to the rotatable applicator when a consumption of the solid lubricant source reaches a consumption threshold.
    Type: Application
    Filed: May 19, 2021
    Publication date: June 22, 2023
    Inventors: Katsushi HIGASHIDA, Takeshi UCHITANI, Takayuki WAKAI
  • Publication number: 20230049612
    Abstract: A lubricant replacement case for an image forming apparatus includes a housing including a plurality of storage compartments to accommodate at least one lubricant unit. The plurality of storage compartments include at least one storage compartment for unused lubricant to be inserted into the image forming apparatus and at least one storage compartment for used lubricant to be retrieved from the image forming apparatus.
    Type: Application
    Filed: February 15, 2022
    Publication date: February 16, 2023
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Katsushi HIGASHIDA, Takeshi UCHITANI
  • Patent number: 11579557
    Abstract: An example lubricant application device includes a rotatable applicator to apply a lubricant from a solid lubricant source to a rotating member, a support member to support the solid lubricant source in contact with the rotatable applicator, a near-end detection member and an end detection member coupled to the support member. The near-end detection member is coupled to the support member such that it comes in contact with the rotatable applicator after a first amount of the solid lubricant source has been consumed. The end detection member is coupled to the support member such that it comes in contact with the rotatable applicator after a second amount of the solid lubricant source has been consumed.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: February 14, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Takeshi Uchitani, Katsushi Higashida, Takayuki Wakai
  • Publication number: 20230029966
    Abstract: An imaging system includes a lubricant roller to transfer a lubricant to the image carrier, a solid lubricant in contact the lubricant roller to supply the lubricant to the lubricant roller, and a pressing member to urge the solid lubricant against the lubricant roller. The lubricant roller includes a foam that is in contact with the image carrier. The foam is selected to have a permeability of approximately 0.15 dm3/s to 1.4 dm3/s.
    Type: Application
    Filed: October 21, 2020
    Publication date: February 2, 2023
    Inventors: Takeshi UCHITANI, Katsushi HIGASHIDA, Takayuki WAKAI
  • Publication number: 20220357684
    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 21, 2022
    Publication date: November 10, 2022
    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: 11454916
    Abstract: A lubricant application device for an image forming apparatus includes a grinding roller that is rotatable to scrape off a lubricant from a solid lubricant source, and a scattering member to scatter the lubricant from the grinding roller toward a separate rotating member.
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: September 27, 2022
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Takayuki Wakai, Takeshi Uchitani, Katsushi Higashida
  • Patent number: 11429036
    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: December 3, 2020
    Date of Patent: August 30, 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
  • Publication number: 20220197208
    Abstract: A lubricant application device for an image forming apparatus includes a grinding roller that is rotatable to scrape off a lubricant from a solid lubricant source, and a scattering member to scatter the lubricant from the grinding roller toward a separate rotating member.
    Type: Application
    Filed: August 26, 2020
    Publication date: June 23, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Takayuki Wakai, Takeshi Uchitani, Katsushi Higashida
  • Publication number: 20220179352
    Abstract: An example lubricant application device includes a rotatable applicator to apply a lubricant from a solid lubricant source to a rotating member, a support member to support the solid lubricant source in contact with the rotatable applicator, a near-end detection member and an end detection member coupled to the support member. The near-end detection member is coupled to the support member such that it comes in contact with the rotatable applicator after a first amount of the solid lubricant source has been consumed. The end detection member is coupled to the support member such that it comes in contact with the rotatable applicator after a second amount of the solid lubricant source has been consumed.
    Type: Application
    Filed: August 13, 2020
    Publication date: June 9, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Takeshi Uchitani, Katsushi Higashida, Takayuki Wakai
  • Patent number: 11353812
    Abstract: A fixing device includes a rotary endless fixing belt; a nip forming member disposed in an interior of the fixing belt; a rotary opposed member to contact the nip forming member via the fixing belt to form a nip together with the fixing belt; a heat source to directly heat the fixing belt at a portion other than the nip, including at lease one heat-generation part disposed outside lateral ends of a maximum area of the fixing belt where a recording medium passes through, wherein a recording medium carrying an unfixed image is conveyed to the nip and the fixing device fixes the unfixed image onto the recording medium; and a shielding member disposed between the fixing belt and the heat generation part of the heat source and configured to shield heat from the heat source at least at an area outside the maximum passing area of the recording medium.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: June 7, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takamasa Hase, Hiroshi Yoshinaga, Takeshi Uchitani, Yutaka Ikebuchi, Takuya Seshita, Shuutaroh Yuasa
  • 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
  • Publication number: 20210223730
    Abstract: A fixing device includes a rotary endless fixing belt; a nip forming member disposed in an interior of the fixing belt; a rotary opposed member to contact the nip forming member via the fixing belt to form a nip together with the fixing belt; a heat source to directly heat the fixing belt at a portion other than the nip, including at lease one heat-generation part disposed outside lateral ends of a maximum area of the fixing belt where a recording medium passes through, wherein a recording medium carrying an unfixed image is conveyed to the nip and the fixing device fixes the unfixed image onto the recording medium; and a shielding member disposed between the fixing belt and the heat generation part of the heat source and configured to shield heat from the heat source at least at an area outside the maximum passing area of the recording medium.
    Type: Application
    Filed: April 8, 2021
    Publication date: July 22, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Takamasa HASE, Hiroshi YOSHINAGA, Takeshi UCHITANI, Yutaka IKEBUCHI, Takuya SESHITA, Shuutaroh YUASA
  • Patent number: 11003119
    Abstract: A fixing device includes a rotary endless fixing belt; a nip forming member disposed in an interior of the fixing belt; a rotary opposed member to contact the nip forming member via the fixing belt to form a nip together with the fixing belt; a heat source to directly heat the fixing belt at a portion other than the nip, including at lease one heat-generation part disposed outside lateral ends of a maximum area of the fixing belt where a recording medium passes through, wherein a recording medium carrying an unfixed image is conveyed to the nip and the fixing device fixes the unfixed image onto the recording medium; and a shielding member disposed between the fixing belt and the heat generation part of the heat source and configured to shield heat from the heat source at least at an area outside the maximum passing area of the recording medium.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: May 11, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Takamasa Hase, Hiroshi Yoshinaga, Takeshi Uchitani, Yutaka Ikebuchi, Takuya Seshita, Shuutaroh Yuasa
  • 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
  • Patent number: 10935911
    Abstract: A fixing device includes an endless belt rotatable in a predetermined direction of rotation and a nip formation assembly disposed opposite an inner circumferential surface of the endless belt. An opposed rotary body is pressed against the nip formation assembly via the endless belt to form a fixing nip between the endless belt and the opposed rotary body through which a recording medium bearing a toner image is conveyed. A belt holder contacts and supports each lateral end of the endless belt in an axial direction thereof. The belt holder is isolated from the opposed rotary body with a first interval interposed therebetween in the axial direction of the endless belt.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: March 2, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Teppei Kawata, Masahiko Satoh, Masaaki Yoshikawa, Kenji Ishii, Hiroshi Yoshinaga, Tadashi Ogawa, Takahiro Imada, Hiromasa Takagi, Kazuya Saito, Naoki Iwaya, Kensuke Yamaji, Takamasa Hase, Toshihiko Shimokawa, Shuutaroh Yuasa, Takuya Seshita, Takeshi Uchitani, Arinobu Yoshiura, Hajime Gotoh, Akira Suzuki
  • 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