Patents by Inventor Susumu Tateyama

Susumu Tateyama 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: 20210080864
    Abstract: A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.
    Type: Application
    Filed: November 24, 2020
    Publication date: March 18, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Kentaro NODERA, Emi KITA, Akihiro TAKAYAMA, Susumu TATEYAMA, Shinnosuke KOSHIZUKA, Tatsuya KUBO, Teppei KIKUCHI
  • Patent number: 10871729
    Abstract: A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: December 22, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Kentaro Nodera, Emi Kita, Akihiro Takayama, Susumu Tateyama, Shinnosuke Koshizuka, Tatsuya Kubo, Teppei Kikuchi
  • Publication number: 20200183302
    Abstract: A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.
    Type: Application
    Filed: February 17, 2020
    Publication date: June 11, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Kentaro NODERA, Emi KITA, Akihiro TAKAYAMA, Susumu TATEYAMA, Shinnosuke KOSHIZUKA, Tatsuya KUBO, Teppei KIKUCHI
  • Patent number: 10606187
    Abstract: A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: March 31, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kentaro Nodera, Emi Kita, Akihiro Takayama, Susumu Tateyama, Shinnosuke Koshizuka, Tatsuya Kubo, Teppei Kikuchi
  • Publication number: 20190064699
    Abstract: A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.
    Type: Application
    Filed: October 26, 2018
    Publication date: February 28, 2019
    Inventors: Kentaro NODERA, Emi KITA, Akihiro TAKAYAMA, Susumu TATEYAMA, Shinnosuke KOSHIZUKA, Tatsuya KUBO, Teppei KIKUCHI
  • Patent number: 10146154
    Abstract: A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: December 4, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Kentaro Nodera, Emi Kita, Akihiro Takayama, Susumu Tateyama, Shinnosuke Koshizuka, Tatsuya Kubo, Teppei Kikuchi
  • Patent number: 10082768
    Abstract: An image forming apparatus includes a conveyance path to convey a recording medium; an image forming device to form an image on the recording medium; a heating device to heat the recording medium; an image detector disposed downstream from the heating device in a direction of conveyance of the recording medium, to detect the image on the recording medium; and a protector projecting beyond the image detector toward the conveyance path. The protector is to protect the image detector; and a heat conductive holder holds the protector.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 25, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiromitsu Fujiya, Susumu Tateyama, Keisuke Yuasa, Yuusuke Kumagawa
  • Publication number: 20180181060
    Abstract: An image forming apparatus includes a conveyance path to convey a recording medium; an image forming device to form an image on the recording medium; a heating device to heat the recording medium; an image detector disposed downstream from the heating device in a direction of conveyance of the recording medium, to detect the image on the recording medium; and a protector projecting beyond the image detector toward the conveyance path. The protector is to protect the image detector; and a heat conductive holder holds the protector.
    Type: Application
    Filed: December 22, 2017
    Publication date: June 28, 2018
    Inventors: Hiromitsu Fujiya, Susumu Tateyama, Keisuke Yuasa, Yuusuke Kumagawa
  • Patent number: 9864334
    Abstract: A recording-material cooling device includes a first cooling member, a second cooling member, an approach-and-separation member, and a positioning member. The first cooling member is disposed at a first face side of a recording material to absorb heat of the recording material. The second cooling member is disposed at a second face side of the recording material to absorb heat of the recording material. The approach-and-separation member brings the first cooling member and the second cooling member close to and away from each other. The positioning member positions the first cooling member and the second cooling member relatively brought close to each other by the approach-and-separation member.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: January 9, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Keisuke Ikeda, Tomoyasu Hirasawa, Kenichi Takehara, Hiromitsu Fujiya, Keisuke Yuasa, Yasuaki Toda, Susumu Tateyama, Hiroaki Miyagawa, Kenji Ishii, Takeshi Watanabe
  • Publication number: 20170363987
    Abstract: A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.
    Type: Application
    Filed: August 30, 2017
    Publication date: December 21, 2017
    Inventors: Kentaro NODERA, Emi KITA, Akihiro TAKAYAMA, Susumu TATEYAMA, Shinnosuke KOSHIZUKA, Tatsuya KUBO, Teppei KIKUCHI
  • Patent number: 9835977
    Abstract: A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: December 5, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Kentaro Nodera, Emi Kita, Akihiro Takayama, Susumu Tateyama, Shinnosuke Koshizuka, Tatsuya Kubo, Teppei Kikuchi
  • Publication number: 20160363887
    Abstract: A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.
    Type: Application
    Filed: August 25, 2016
    Publication date: December 15, 2016
    Inventors: Kentaro NODERA, Emi KITA, Akihiro TAKAYAMA, Susumu TATEYAMA, Shinnosuke KOSHIZUKA, Tatsuya KUBO, Teppei KIKUCHI
  • Publication number: 20160342136
    Abstract: A recording-material cooling device includes a first cooling member, a second cooling member, an approach-and-separation member, and a positioning member. The first cooling member is disposed at a first face side of a recording material to absorb heat of the recording material. The second cooling member is disposed at a second face side of the recording material to absorb heat of the recording material. The approach-and-separation member brings the first cooling member and the second cooling member close to and away from each other. The positioning member positions the first cooling member and the second cooling member relatively brought close to each other by the approach-and-separation member.
    Type: Application
    Filed: August 5, 2016
    Publication date: November 24, 2016
    Inventors: Keisuke IKEDA, Tomoyasu HIRASAWA, Kenichi TAKEHARA, Hiromitsu FUJIYA, Keisuke YUASA, Yasuaki TODA, Susumu TATEYAMA, Hiroaki MIYAGAWA, Kenji ISHII, Takeshi WATANABE
  • Patent number: 9483018
    Abstract: A recording-material cooling device includes a first belt, a first cooling unit, and a second cooling unit. The first belt is disposed at a first face side of a recording material. The first cooling unit has a first heat absorbing surface to contact the first belt to absorb heat of the recording material. The second cooling unit has a second heat absorbing surface to directly or indirectly contact the recording material to absorb heat of the recording material. The second cooling unit is disposed at a second face side of the recording material. The first and second cooling units are offset from each other in a transport direction of the recording material. Each of the first and second surfaces has a shape in which an inner area protrudes beyond opposed ends in the transport direction. The first and second surfaces overlap each other in a direction crossing the transport direction.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: November 1, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoyasu Hirasawa, Kenichi Takehara, Hiromitsu Fujiya, Keisuke Yuasa, Yasuaki Toda, Yutaka Shoji, Kenji Ishii, Makoto Nakura, Susumu Tateyama, Hiroaki Miyagawa, Keisuke Ikeda, Takeshi Watanabe
  • Patent number: 9465358
    Abstract: A recording-material cooling device includes a first cooling member, a second cooling member, an approach-and-separation member, and a positioning member. The first cooling member is disposed at a first face side of a recording material to absorb heat of the recording material. The second cooling member is disposed at a second face side of the recording material to absorb heat of the recording material. The approach-and-separation member brings the first cooling member and the second cooling member close to and away from each other. The positioning member positions the first cooling member and the second cooling member relatively brought close to each other by the approach-and-separation member.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: October 11, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Keisuke Ikeda, Tomoyasu Hirasawa, Kenichi Takehara, Hiromitsu Fujiya, Keisuke Yuasa, Yasuaki Toda, Susumu Tateyama, Hiroaki Miyagawa, Kenji Ishii, Takeshi Watanabe
  • Patent number: 9459556
    Abstract: A powder container includes a powder chamber for containing powder for forming images, a powder outlet formed in a face of the powder container, and a shutter assembly to open and close the powder outlet and including first and second shutters. The first shutter is movable between a sealing position to close the powder outlet and an open position to open the powder outlet and includes a pressed member to cancel retention of the first shutter at the sealing position. The second shutter includes a pressing projection that interferes with the pressed member of the first shutter and is movable between a shielding position to cover the pressed member without interference between the pressing projection and the pressed member and a releasing position to press the pressed member with the pressing projection.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: October 4, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Kentaro Nodera, Emi Kita, Akihiro Takayama, Susumu Tateyama, Shinnosuke Koshizuka, Tatsuya Kubo, Teppei Kikuchi
  • Patent number: 9372465
    Abstract: A recording-material cooling device is disposed downstream from a fixing device in a transport direction of a recording material. The fixing device includes a fixing member and a pressing member to fix an unfixed toner image on the recording material. The recording-material cooling device includes a first cooling unit disposed at a same side as the pressing member relative to the recording material, a second cooling unit disposed at a same side as the fixing member relative to the recording material, and a third cooling unit disposed at the same side as the pressing member relative to the recording material. The first cooling unit, the second cooling unit, and the third cooling unit are arranged in an order of the first cooling unit, the second cooling unit, and the third cooling unit from upstream to downstream in the transport direction of the recording material.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: June 21, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Keisuke Ikeda, Tomoyasu Hirasawa, Yutaka Shoji, Kenji Ishii, Takeshi Watanabe, Susumu Tateyama, Hiroaki Miyagawa, Hiromitsu Fujiya
  • Patent number: 9360838
    Abstract: A liquid type cooling device, which is incorporated in an image forming apparatus, includes a heat releasing unit to release heat of a coolant that passes therethrough, and multiple air blowing fans disposed facing the heat releasing unit to blow air to the heat releasing unit. A cooling capacity of the liquid type cooling device varies according to a type of a recording medium on which an image is formed.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: June 7, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroaki Miyagawa, Satoshi Aizawa, Susumu Tateyama, Tomoyasu Hirasawa
  • Patent number: 9354601
    Abstract: A liquid type cooling device, which is incorporated in an image forming apparatus, includes a heat receiving part including a heat receiving unit to transport heat from a cooling target to a coolant and a heat releasing part including a heat releasing unit, a cooling fan, and an air flowing space. The heat releasing unit has a coolant flowing path and an air flowing path through which air passes and conducts heat exchange with the coolant. The air flowing space has an air inlet port and an air outlet port. When the air flowing path has an upstream region and a downstream region along a coolant flowing direction of the coolant flowing path, air at high temperature flows into the upstream region of the air flowing path. Alternatively, the heat releasing unit may have a coolant inlet port, a coolant outlet port, and the air flowing path.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: May 31, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Tomoyasu Hirasawa, Hiromitsu Fujiya, Keisuke Yuasa, Yasuaki Toda, Kenji Ishii, Susumu Tateyama, Hiroaki Miyagawa, Keisuke Ikeda
  • Patent number: 9335676
    Abstract: An image forming apparatus includes a cooling conveyor to cool a recording material having an image fixed by heat while sandwiching and conveying the recording material. The cooling conveyor includes a conveyance belt, a cooling member, and a cooling unit. The conveyance belt sandwiches and conveys the recording material. The cooling member absorbs heat of the recording material via the conveyance belt. The cooling unit maintains the cooling member at low temperature. The cooling conveyor performs control of stopping the cooling unit in a standby state of the image forming apparatus, activating the cooling unit and performing a preliminary cooling operation to decrease temperature of the cooling member after a shift from the standby state to image forming operation, and then bringing the recording material into contact with the conveyance belt.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: May 10, 2016
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroaki Miyagawa, Tomoyasu Hirasawa, Keisuke Ikeda, Susumu Tateyama, Kenji Ishii