Patents by Inventor Junji Yamabe
Junji Yamabe 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).
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Publication number: 20180074438Abstract: A nozzle insertion member arranged in a powder container includes a nozzle insertion opening; an opening/closing member opening/closing the nozzle insertion opening; a supporting member supporting the opening/closing member; and a biasing member provided to the supporting member to bias the opening/closing member toward a closing position. When the powder is supplied to the conveying nozzle along with rotation of a rotary conveyor arranged inside the powder container, the supporting member rotates with the rotation of the conveyor. The opening/closing member is rotated by a drive transmitting mechanism with rotation of the supporting member. The mechanism includes an elongated member arranged on the opening/closing member and penetrating through an opening formed on the supporting member; and a drive transmitted portion formed on the elongated member; and a drive transmitting portion formed on an inner surface of the opening and configured to come into contact with the drive transmitted portion.Type: ApplicationFiled: November 24, 2017Publication date: March 15, 2018Inventors: KENJI KIKUCHI, Shinji Tamaki, Shunji Katoh, Junji Yamabe
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Publication number: 20180004121Abstract: In a toner container, a powder container that includes a container body configured to store toner, and is rotated by input of rotational drive of a drive output section of an image forming device while being set in the image forming device, the toner container includes an incompatible hole group, as a container-side engagement portion, on a front end surface facing downstream in an insertion direction when inserted in a direction parallel to a rotational center line of the rotational drive and set in the image forming device, the incompatible hole group has a hole shape that is engaged with a body-side projection portion of the drive output section protruding upstream in the insertion direction, and the rotational drive is input by rotation of the drive output section with the incompatible hole group and the body-side projection portion engaged with each other.Type: ApplicationFiled: January 6, 2016Publication date: January 4, 2018Inventor: Junji YAMABE
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Patent number: 9857729Abstract: A nozzle insertion member arranged in a powder container includes a nozzle insertion opening; an opening/closing member opening/closing the nozzle insertion opening; a supporting member supporting the opening/closing member; and a biasing member provided to the supporting member to bias the opening/closing member toward a closing position. When the powder is supplied to the conveying nozzle along with rotation of a rotary conveyor arranged inside the powder container, the supporting member rotates with the rotation of the conveyor. The opening/closing member is rotated by a drive transmitting mechanism with rotation of the supporting member. The mechanism includes an elongated member arranged on the opening/closing member and penetrating through an opening formed on the supporting member; and a drive transmitted portion formed on the elongated member; and a drive transmitting portion formed on an inner surface of the opening and configured to come into contact with the drive transmitted portion.Type: GrantFiled: August 17, 2016Date of Patent: January 2, 2018Assignee: RICOH COMPANY, LTD.Inventors: Kenji Kikuchi, Shinji Tamaki, Shunji Katoh, Junji Yamabe
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Publication number: 20170227885Abstract: A powder container includes a discharge port, and a container identifier shape portion provided on a front end surface of the powder container in an insertion direction and that functions to identify a type of the powder container, the insertion direction being a direction in which the container body is inserted. The powder container further includes a driven portion that interlocks with a first main-body interlocking portion of the image forming apparatus at the time of setting in the main body of the image forming apparatus, and an identifier opening group that starts to interlock with a second main-body interlocking portion of the image forming apparatus after the driven portion starts to interlock with the first main-body interlocking portion. A position of the identifier opening group relative to the driven portion in the circumferential direction varies depending on a type of the powder container to be identified.Type: ApplicationFiled: August 5, 2015Publication date: August 10, 2017Inventors: Junji YAMABE, Nobuo TAKAMI
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Publication number: 20170227922Abstract: A powder container is insertable in an image forming apparatus, and includes a main-body interlocking portion that is rotatable and protrudes toward an upstream side in an insertion direction in which the powder container is inserted, the image forming apparatus including an identifier protrusion that protrudes toward the upstream side in the insertion direction to identify a type of the powder container. The powder container includes a container interlocking portion configured to interlock with the main-body interlocking portion; and an interlocked portion configured to interlock with the identifier protrusion. The interlocked portion is provided in a front end of the powder container in the insertion direction. The container interlocking portion stands outward from an outer circumference of the powder container. The container interlocking portion and the interlocked portion are rotated integrally.Type: ApplicationFiled: August 5, 2015Publication date: August 10, 2017Inventors: Nobuo TAKAMI, Kiyonori TSUDA, Ryoichi TERANISHI, Junichi MATSUMOTO, Toshio KOIKE, Yutaka TAKAHASHI, Junji YAMABE, Akihiro KAWAKAMI, Keinosuke KONDOH, Atsushi INOUE
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Patent number: 9690232Abstract: A toner container that is detachably attached to a main body of an image forming apparatus such that a longitudinal direction of the toner container is parallel to a horizontal direction includes: a cylindrical container body that has an opening on one end thereof in the longitudinal direction, and is configured to convey toner contained therein toward the opening; a cap portion into which the opening of the container body is inserted, and which includes a toner outlet at a bottom portion thereof for discharging toner discharged from the opening of the container body to the outside of the toner container in a vertically downward direction; and a shutter member that is held on the bottom portion of the cap portion, and moves along an outer periphery of the cap portion to thereby open and close the toner outlet, wherein the cap portion is formed by integral molding.Type: GrantFiled: August 2, 2016Date of Patent: June 27, 2017Assignee: Ricoh Company, Ltd.Inventors: Eisuke Hori, Noriyuki Kimura, Nobuo Takami, Yuji Suzuki, Hideki Kimura, Kenji Kikuchi, Junji Yamabe, Masato Suzuki
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Publication number: 20170139350Abstract: According to an embodiment, when a nozzle insertion member is detached from a powder container, an engaging portion and an engaged portion are disengaged from each other by resiliently displacing the engaging portion in a direction in which the engaging portion is disengaged from the engaged portion. Therefore, it is possible to reduce a stress applied to the powder container and the nozzle insertion member at the time of attachment and detachment of the nozzle insertion member. Consequently, it becomes possible to easily detach the nozzle insertion member from the powder container.Type: ApplicationFiled: June 30, 2015Publication date: May 18, 2017Inventors: Keiichi YANO, Junji YAMABE, Ryoichi TERANISHI, Yuuta TANAKA, Seiji TERAZAWA
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Publication number: 20170108799Abstract: A powder conveying device includes: a conveying nozzle, provided with a powder receiving opening; an open/close member to open/close the powder receiving opening; a flange provided to the open/close member; a biasing member to bias the open/close member; and a container setting section to which a part of a powder container is to be fit. The powder container includes: a conveyor to convey the powder from a second end of the powder container to a first end; a container opening protruding from the first end; a nozzle receiving opening into which the conveying nozzle is to be inserted; and a butting portion provided in the container opening, to butt against the flange. When the powder container is attached to the powder conveying device, the container opening is fitted to the container setting section, and the flange and the biasing member are housed in an inner space of the container opening.Type: ApplicationFiled: December 29, 2016Publication date: April 20, 2017Applicant: RICOH COMPANY, LIMITEDInventors: Hiroshi HOSOKAWA, Shunji KATO, Shinji TAMAKI, Hiroshi IKEGUCHI, Seiji TERAZAWA, Junji YAMABE, Kaori MITSUISHI, Toshihide TOMOTAKA, Tsunehiro WATANABE, Kenji KIKUCHI
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Publication number: 20170102638Abstract: A nozzle receiver is to be arranged in a powder container used in an image forming apparatus. The nozzle receiver includes a nozzle receiving opening, in which a conveying nozzle for conveying powder supplied from the powder container is inserted in the image forming apparatus; an opening/closing member to open and to close the nozzle receiving opening; and a supporter to support the opening/closing member. The opening/closing member includes a sealing portion to seal the nozzle insertion opening. The supporter includes an end surface portion perpendicular to a moving direction of the opening/closing member. The projection area of the end surface portion in the moving direction of the opening/closing member is smaller than a projection area of the sealing portion in the moving direction of the opening/closing member.Type: ApplicationFiled: December 22, 2016Publication date: April 13, 2017Inventors: Junji YAMABE, Keiichi YANO, Michiharu SUZUKI, Hideki KIMURA, Hideki ZEMBA, Takahiro IKUMA, Seiji TERAZAWA
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Patent number: 9581937Abstract: A powder conveying device includes: a conveying nozzle, provided with a powder receiving opening; an open/close member to open/close the powder receiving opening; a flange provided to the open/close member; a biasing member to bias the open/close member; and a container setting section to which a part of a powder container is to be fit. The powder container includes: a conveyor to convey the powder from a second end of the powder container to a first end; a container opening protruding from the first end; a nozzle receiving opening into which the conveying nozzle is to be inserted; and a butting portion provided in the container opening, to butt against the flange. When the powder container is attached to the powder conveying device, the container opening is fitted to the container setting section, and the flange and the biasing member are housed in an inner space of the container opening.Type: GrantFiled: February 11, 2016Date of Patent: February 28, 2017Assignee: RICOH COMPANY, LTD.Inventors: Hiroshi Hosokawa, Shunji Kato, Shinji Tamaki, Hiroshi Ikeguchi, Seiji Terazawa, Junji Yamabe, Kaori Mitsuishi, Toshihide Tomotaka, Tsunehiro Watanabe, Kenji Kikuchi
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Patent number: 9557685Abstract: A nozzle receiver is to be arranged in a powder container used in an image forming apparatus. The nozzle receiver includes a nozzle receiving opening, in which a conveying nozzle for conveying powder supplied from the powder container is inserted in the image forming apparatus; an opening/closing member to open and to close the nozzle receiving opening; and a supporter to support the opening/closing member. The opening/closing member includes a sealing portion to seal the nozzle insertion opening. The supporter includes an end surface portion perpendicular to a moving direction of the opening/closing member. The projection area of the end surface portion in the moving direction of the opening/closing member is smaller than a projection area of the sealing portion in the moving direction of the opening/closing member.Type: GrantFiled: March 16, 2015Date of Patent: January 31, 2017Assignee: RICOH COMPANY, LIMITEDInventors: Junji Yamabe, Keiichi Yano, Michiharu Suzuki, Hideki Kimura, Hideki Zemba, Takahiro Ikuma, Seiji Terazawa
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Publication number: 20170010564Abstract: A nozzle insertion member arranged in a powder container includes a nozzle insertion opening; an opening/closing member opening/closing the nozzle insertion opening; a supporting member supporting the opening/closing member; and a biasing member provided to the supporting member to bias the opening/closing member toward a closing position. When the powder is supplied to the conveying nozzle along with rotation of a rotary conveyor arranged inside the powder container, the supporting member rotates with the rotation of the conveyor. The opening/closing member is rotated by a drive transmitting mechanism with rotation of the supporting member. The mechanism includes an elongated member arranged on the opening/closing member and penetrating through an opening formed on the supporting member; and a drive transmitted portion formed on the elongated member; and a drive transmitting portion formed on an inner surface of the opening and configured to come into contact with the drive transmitted portion.Type: ApplicationFiled: August 17, 2016Publication date: January 12, 2017Inventors: Kenji Kikuchi, Shinji Tamaki, Shunji Katoh, Junji Yamabe
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Publication number: 20160342109Abstract: A toner container that is detachably attached to a main body of an image forming apparatus such that a longitudinal direction of the toner container is parallel to a horizontal direction includes: a cylindrical container body that has an opening on one end thereof in the longitudinal direction, and is configured to convey toner contained therein toward the opening; a cap portion into which the opening of the container body is inserted, and which includes a toner outlet at a bottom portion thereof for discharging toner discharged from the opening of the container body to the outside of the toner container in a vertically downward direction; and a shutter member that is held on the bottom portion of the cap portion, and moves along an outer periphery of the cap portion to thereby open and close the toner outlet, wherein the cap portion is formed by integral molding.Type: ApplicationFiled: August 2, 2016Publication date: November 24, 2016Inventors: Eisuke HORI, Noriyuki KIMURA, Nobuo TAKAMI, Yuji SUZUKI, Hideki KIMURA, Kenji KIKUCHI, Junji YAMABE, Masato SUZUKI
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Patent number: 9482988Abstract: A powder conveying device includes: a conveying nozzle, provided with a powder receiving opening; an open/close member to open/close the powder receiving opening; a flange provided to the open/close member; a biasing member to bias the open/close member; and a container setting section to which a part of a powder container is to be fit. The powder container includes: a conveyor to convey the powder from a second end of the powder container to a first end; a container opening protruding from the first end; a nozzle receiving opening into which the conveying nozzle is to be inserted; and a butting portion provided in the container opening, to butt against the flange. When the powder container is attached to the powder conveying device, the container opening is fitted to the container setting section, and the flange and the biasing member are housed in an inner space of the container opening.Type: GrantFiled: May 23, 2014Date of Patent: November 1, 2016Assignee: RICOH COMPANY, LIMITEDInventors: Hiroshi Hosokawa, Shunji Kato, Shinji Tamaki, Hiroshi Ikeguchi, Seiji Terazawa, Junji Yamabe, Kaori Mitsuishi, Toshihide Tomotaka, Tsunehiro Watanabe, Kenji Kikuchi
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Patent number: 9465317Abstract: A nozzle insertion member arranged in a powder container includes a nozzle insertion opening; an opening/closing member opening/closing the nozzle insertion opening; a supporting member supporting the opening/closing member; and a biasing member provided to the supporting member to bias the opening/closing member toward a closing position. When the powder is supplied to the conveying nozzle along with rotation of a rotary conveyor arranged inside the powder container, the supporting member rotates with the rotation of the conveyor. The opening/closing member is rotated by a drive transmitting mechanism with rotation of the supporting member. The mechanism includes an elongated member arranged on the opening/closing member and penetrating through an opening formed on the supporting member; and a drive transmitted portion formed on the elongated member; and a drive transmitting portion formed on an inner surface of the opening and configured to come into contact with the drive transmitted portion.Type: GrantFiled: February 21, 2014Date of Patent: October 11, 2016Assignee: RICOH COMPANY, LTD.Inventors: Kenji Kikuchi, Shinji Tamaki, Shunji Katoh, Junji Yamabe
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Patent number: 9454099Abstract: An image forming apparatus includes a lid pulling mechanism that includes a hook to open a toner discharge opening by pulling, from the bottle head section, a lid member that is in contact with a bottle head section of a toner bottle to close the toner discharge opening, and the lid pulling mechanism pulls the lid member in a direction inclined upward with respect to a virtual line that extends in a horizontal direction. Therefore, the distance is decreased between the lid member and the bottle head section and above the toner discharge opening through which air easily passes; thus, intake of air from the outside to the inside of the bottle head section is prevented. Furthermore, it is possible to prevent the occurrence of spread of toner from the inside of the bottle head section to the outside of the container.Type: GrantFiled: March 13, 2014Date of Patent: September 27, 2016Assignee: RICOH COMPANY, LIMITEDInventors: Junji Yamabe, Seiji Terazawa, Masashi Hasegawa
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Patent number: 9429874Abstract: A toner container that is detachably attached to a main body of an image forming apparatus such that a longitudinal direction of the toner container is parallel to a horizontal direction includes: a cylindrical container body that has an opening on one end thereof in the longitudinal direction, and is configured to convey toner contained therein toward the opening; a cap portion into which the opening of the container body is inserted, and which includes a toner outlet at a bottom portion thereof for discharging toner discharged from the opening of the container body to the outside of the toner container in a vertically downward direction; and a shutter member that is held on the bottom portion of the cap portion, and moves along an outer periphery of the cap portion to thereby open and close the toner outlet, wherein the cap portion is formed by integral molding.Type: GrantFiled: February 3, 2015Date of Patent: August 30, 2016Assignee: Ricoh Company, Ltd.Inventors: Eisuke Hori, Noriyuki Kimura, Nobuo Takami, Yuji Suzuki, Hideki Kimura, Kenji Kikuchi, Junji Yamabe, Masato Suzuki
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Publication number: 20160161885Abstract: A powder conveying device includes: a conveying nozzle, provided with a powder receiving opening; an open/close member to open/close the powder receiving opening; a flange provided to the open/close member; a biasing member to bias the open/close member; and a container setting section to which a part of a powder container is to be fit. The powder container includes: a conveyor to convey the powder from a second end of the powder container to a first end; a container opening protruding from the first end; a nozzle receiving opening into which the conveying nozzle is to be inserted; and a butting portion provided in the container opening, to butt against the flange. When the powder container is attached to the powder conveying device, the container opening is fitted to the container setting section, and the flange and the biasing member are housed in an inner space of the container opening.Type: ApplicationFiled: February 11, 2016Publication date: June 9, 2016Inventors: Hiroshi HOSOKAWA, Shunji KATO, Shinji TAMAKI, Hiroshi IKEGUCHI, Seiji TERAZAWA, Junji YAMABE, Kaori MITSUISHI, Toshihide TOMOTAKA, Tsunehiro WATANABE, Kenji KIKUCHI
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Publication number: 20160124346Abstract: A nozzle receiver is to be arranged in a powder container used in an image forming apparatus. The nozzle receiver includes a nozzle receiving opening, in which a conveying nozzle for conveying powder supplied from the powder container is inserted in the image forming apparatus; an opening/closing member to open and to close the nozzle receiving opening; and a supporter to support the opening/closing member. The opening/closing member includes a sealing portion to seal the nozzle insertion opening. The supporter includes an end surface portion perpendicular to a moving direction of the opening/closing member. The projection area of the end surface portion in the moving direction of the opening/closing member is smaller than a projection area of the sealing portion in the moving direction of the opening/closing member.Type: ApplicationFiled: March 16, 2015Publication date: May 5, 2016Inventors: Junji YAMABE, Keiichi YANO, Michiharu SUZUKI, Hideki KIMURA, Hideki ZEMBA, Takahiro IKUMA, Seiji TERAZAWA
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Publication number: 20160033898Abstract: An image forming apparatus includes a lid pulling mechanism that includes a hook to open a toner discharge opening by pulling, from the bottle head section, a lid member that is in contact with a bottle head section of a toner bottle to close the toner discharge opening, and the lid pulling mechanism pulls the lid member in a direction inclined upward with respect to a virtual line that extends in a horizontal direction. Therefore, the distance is decreased between the lid member and the bottle head section and above the toner discharge opening through which air easily passes; thus, intake of air from the outside to the inside of the bottle head section is prevented. Furthermore, it is possible to prevent the occurrence of spread of toner from the inside of the bottle head section to the outside of the container.Type: ApplicationFiled: March 13, 2014Publication date: February 4, 2016Inventors: Junji YAMABE, Seiji TERAZAWA, Masashi HASEGAWA