Patents by Inventor Yoichiro Iizuka
Yoichiro Iizuka 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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Patent number: 11852999Abstract: An image forming apparatus includes a first metal plate provided with a through hole; a second metal plate provided opposed to the first plate; a third metal plate provided between the first plate and the second plate; and a fixing member fixing the first plate and the third metal plate to each other. The fixing member has a first surface and a second surface extending in a direction crossing the first surface. The third metal plate extends outward in a direction in which the first plate and the second plate opposes to each other, and the third metal plate is provided with a first projection penetrating the through hole, and wherein the first projection is fixed on the first surface. The first plate is fixed on the second surface of the fixing member.Type: GrantFiled: October 4, 2022Date of Patent: December 26, 2023Assignee: Canon Kabushiki KaishaInventors: Yoichiro Iizuka, Kohei Koguchi, Masatoshi Yamashita
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Publication number: 20230023209Abstract: An image forming apparatus includes a first metal plate provided with a through hole; a second metal plate provided opposed to the first plate; a third metal plate provided between the first plate and the second plate; and a fixing member fixing the first plate and the third metal plate to each other. The fixing member has a first surface and a second surface extending in a direction crossing the first surface. The third metal plate extends outward in a direction in which the first plate and the second plate opposes to each other, and the third metal plate is provided with a first projection penetrating the through hole, and wherein the first projection is fixed on the first surface. The first plate is fixed on the second surface of the fixing member.Type: ApplicationFiled: October 4, 2022Publication date: January 26, 2023Inventors: Yoichiro IIZUKA, Kohei KOGUCHI, Masatoshi YAMASHITA
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Patent number: 11493875Abstract: An image forming apparatus includes a first metal plate provided with a through hole; a second metal plate provided opposed to the first plate; a third metal plate provided between the first plate and the second plate; and a fixing member fixing the first plate and the third metal plate to each other. The fixing member has a first surface and a second surface extending in a direction crossing the first surface. The third metal plate extends outward in a direction in which the first plate and the second plate opposes to each other, and the third metal plate is provided with a first projection penetrating the through hole, and wherein the first projection is fixed on the first surface. The first plate is fixed on the second surface of the fixing member.Type: GrantFiled: December 3, 2019Date of Patent: November 8, 2022Assignee: Canon Kabushiki KaishaInventors: Yoichiro Iizuka, Kohei Koguchi, Masatoshi Yamashita
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Publication number: 20220019170Abstract: An image forming apparatus includes a first metal plate provided with a through hole; a second metal plate provided opposed to the first plate; a third metal plate provided between the first plate and the second plate; and a fixing member fixing the first plate and the third metal plate to each other. The fixing member has a first surface and a second surface extending in a direction crossing the first surface. The third metal plate extends outward in a direction in which the first plate and the second plate opposes to each other, and the third metal plate is provided with a first projection penetrating the through hole, and wherein the first projection is fixed on the first surface. The first plate is fixed on the second surface of the fixing member.Type: ApplicationFiled: December 3, 2019Publication date: January 20, 2022Inventors: Yoichiro IIZUKA, Kohei KOGUCHI, Masatoshi YAMASHITA
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Patent number: 11048204Abstract: A positioning apparatus includes an apparatus body, a draw-out portion, and a positioning mechanism configured to position the draw-out portion at an attachment position with respect to the apparatus body, wherein the positioning mechanism includes a first engaging portion provided in one of the apparatus body and the draw-out portion, a first engaged portion provided in another of the apparatus body and the draw-out portion and configured to determine a position of the draw-out portion in an attachment direction by engaging with the first engaging portion, and wherein the first engaged portion includes an inclined surface that is inclined downward toward a downstream side in the attachment direction and causes a force in the attachment direction to act on the draw-out portion on a basis of a weight of the draw-out portion in a state in which the first engaged portion is engaged with the first engaging portion.Type: GrantFiled: February 4, 2020Date of Patent: June 29, 2021Assignee: Canon Kabushiki KaishaInventors: Fumiya Sawashima, Takeo Kawanami, Shunsuke Hijikata, Kohei Koguchi, Yoichiro Iizuka
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Patent number: 10759618Abstract: A sheet conveying apparatus including: a locking member having an abutment surface abutting a sheet to correct skew feed of the sheet; a holding member configured to hold the locking member to rotate from a waiting position when the locking member is pushed by the sheet; a roller pair configured to nip the sheet abutting the abutment surface; a first urging portion configured to urge the holding member to the waiting position; a movable support portion configured to support the locking member in a manner that the locking member is located a retracted position where the locking member contacts a surface of the sheet and allows the sheet to pass; and a second urging portion configured to urge the locking member to a position where the abutment surface abuts a succeeding sheet.Type: GrantFiled: February 28, 2018Date of Patent: September 1, 2020Assignee: Canon Kabushiki KaishaInventor: Yoichiro Iizuka
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Publication number: 20200264554Abstract: A positioning apparatus includes an apparatus body, a draw-out portion, and a positioning mechanism configured to position the draw-out portion at an attachment position with respect to the apparatus body, wherein the positioning mechanism includes a first engaging portion provided in one of the apparatus body and the draw-out portion, a first engaged portion provided in another of the apparatus body and the draw-out portion and configured to determine a position of the draw-out portion in an attachment direction by engaging with the first engaging portion, and wherein the first engaged portion includes an inclined surface that is inclined downward toward a downstream side in the attachment direction and causes a force in the attachment direction to act on the draw-out portion on a basis of a weight of the draw-out portion in a state in which the first engaged portion is engaged with the first engaging portion.Type: ApplicationFiled: February 4, 2020Publication date: August 20, 2020Inventors: Fumiya Sawashima, Takeo Kawanami, Shunsuke Hijikata, Kohei Koguchi, Yoichiro Iizuka
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Patent number: 10627777Abstract: The separation holding member 36 includes a grip portion 36h for detaching the separation holding member 36 from the cartridge B, the grip portion 36h being configured so as to assume a first shape of protruding in a direction of separation from a surface of the cartridge B when the cartridge B mounted with the separation holding member 36 is detached from the apparatus main body A and to assume a second shape in which a gap with the surface of the cartridge B is smaller than in the first shape when the cartridge B mounted with the separation holding member 36 is mounted to the apparatus main body A.Type: GrantFiled: January 22, 2019Date of Patent: April 21, 2020Assignee: CANON KABUSHIKI KAISHAInventors: Kohei Koguchi, Yoichiro Iizuka
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Patent number: 10459382Abstract: The image forming apparatus of the present invention has an apparatus main body including a link mechanism that an opening and closing member contacts, and a regulating portion regulating the movement of a shutter, and when the opening and closing member is further pushed in a closing direction at the time when the shutter is located at a second position, the link mechanism allows to move the opening and closing member in the closing direction while keeping a position of the shutter maintains at the second position by the regulating portion.Type: GrantFiled: November 20, 2018Date of Patent: October 29, 2019Assignee: Canon Kabushiki KaishaInventor: Yoichiro Iizuka
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Publication number: 20190227482Abstract: The separation holding member 36 includes a grip portion 36h for detaching the separation holding member 36 from the cartridge B, the grip portion 36h being configured so as to assume a first shape of protruding in a direction of separation from a surface of the cartridge B when the cartridge B mounted with the separation holding member 36 is detached from the apparatus main body A and to assume a second shape in which a gap with the surface of the cartridge B is smaller than in the first shape when the cartridge B mounted with the separation holding member 36 is mounted to the apparatus main body A.Type: ApplicationFiled: January 22, 2019Publication date: July 25, 2019Inventors: Kohei Koguchi, Yoichiro Iizuka
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Publication number: 20190163103Abstract: The image forming apparatus of the present invention has an apparatus main body including a link mechanism that an opening and closing member contacts, and a regulating portion regulating the movement of a shutter, and when the opening and closing member is further pushed in a closing direction at the time when the shutter is located at a second position, the link mechanism allows to move the opening and closing member in the closing direction while keeping a position of the shutter maintains at the second position by the regulating portion.Type: ApplicationFiled: November 20, 2018Publication date: May 30, 2019Inventor: Yoichiro Iizuka
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Patent number: 10160601Abstract: A belt transporting device includes a belt; first and second adjustment members provided at two respective ends of a tension roller in a belt width direction orthogonal to a direction of rotation of the belt, the first and second adjustment members each being movable by receiving a force from the belt; and a link member that interlocks the movement of the first adjustment member and the movement of the second adjustment member. If the belt is laterally shifted in the belt width direction, one of the first and second adjustment members moves by receiving a force from the belt while the other is moved by the link member such that the tension roller is tilted with respect to a driving roller.Type: GrantFiled: August 22, 2017Date of Patent: December 25, 2018Assignee: Canon Kabushiki KaishaInventors: Takeo Kawanami, Yoshihiro Ito, Kenji Watanabe, Daigo Yamauchi, Fumiya Sawashima, Osamu Sasaoka, Yoichiro Iizuka, Hiromi Fujinaka, Takugo Kasaishi
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Patent number: 10150634Abstract: A sheet detecting apparatus has an abutment member against which a leading edge of a conveyed sheet abuts, a holding member with a positioning portion to hold the abutment member, and an indicator flag moving in association with movement of the abutment member. The abutment member moves between an abutment position and a retracted position, the holding member moves between a first position and a second position retracted from the first position, the abutment member is pushed by the leading edge of the sheet when the holding member is at the first position, with the push moving the holding member to the second position, the holding member is moved in a direction away from the first position so that the leading edge of the sheet is separated from the abutment surface, and the holding member moves from the second position to the first position when the abutment member is pushed by the sheet to the retracted position.Type: GrantFiled: July 7, 2017Date of Patent: December 11, 2018Assignee: Canon Kabushiki KaishaInventor: Yoichiro Iizuka
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Patent number: 10126706Abstract: An image-forming apparatus includes a coupling recess to be engaged with a coupling protrusion to rotate the coupling protrusion, a second gear portion to be engaged with a gear to rotate the gear, and a driving force transmitter that is rotatable about a predetermined rotational axis. A torque required to rotate the gear is larger than a torque required to rotate the second gear portion in a state where the coupling recess does not engage the coupling protrusion.Type: GrantFiled: June 26, 2017Date of Patent: November 13, 2018Assignee: Canon Kabushiki KaishaInventors: Yu Shuhama, Yoichiro Iizuka
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Publication number: 20180186588Abstract: A sheet conveying apparatus including: a locking member having an abutment surface abutting a sheet to correct skew feed of the sheet; a holding member configured to hold the locking member to rotate from a waiting position when the locking member is pushed by the sheet; a roller pair configured to nip the sheet abutting the abutment surface; a first urging portion configured to urge the holding member to the waiting position; a movable support portion configured to support the locking member in a manner that the locking member is located a retracted position where the locking member contacts a surface of the sheet and allows the sheet to pass; and a second urging portion configured to urge the locking member to a position where the abutment surface abuts a succeeding sheet.Type: ApplicationFiled: February 28, 2018Publication date: July 5, 2018Inventor: Yoichiro Iizuka
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Patent number: 9938102Abstract: A sheet conveying apparatus including: a locking member having an abutment surface abutting a sheet to correct skew feed of the sheet; a holding member configured to hold the locking member to rotate from a waiting position when the locking member is pushed by the sheet; a roller pair configured to nip the sheet abutting the abutment surface; a first urging portion configured to urge the holding member to the waiting position; a movable support portion configured to support the locking member in a manner that the locking member is located a retracted position where the locking member contacts a surface of the sheet and allows the sheet to pass; and a second urging portion configured to urge the locking member to a position where the abutment surface abuts a succeeding sheet.Type: GrantFiled: January 19, 2017Date of Patent: April 10, 2018Assignee: Canon Kabushiki KaishaInventor: Yoichiro Iizuka
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Publication number: 20180004153Abstract: An image-forming apparatus includes a coupling recess to be engaged with a coupling protrusion to rotate the coupling protrusion, a second gear portion to be engaged with a gear to rotate the gear, and a driving force transmitter that is rotatable about a predetermined rotational axis. A torque required to rotate the gear is larger than a torque required to rotate the second gear portion in a state where the coupling recess does not engage the coupling protrusion.Type: ApplicationFiled: June 26, 2017Publication date: January 4, 2018Inventors: Yu Shuhama, Yoichiro Iizuka
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Publication number: 20170349378Abstract: A belt transporting device includes a belt; first and second adjustment members provided at two respective ends of a tension roller in a belt width direction orthogonal to a direction of rotation of the belt, the first and second adjustment members each being movable by receiving a force from the belt; and a link member that interlocks the movement of the first adjustment member and the movement of the second adjustment member. If the belt is laterally shifted in the belt width direction, one of the first and second adjustment members moves by receiving a force from the belt while the other is moved by the link member such that the tension roller is tilted with respect to a driving roller.Type: ApplicationFiled: August 22, 2017Publication date: December 7, 2017Inventors: Takeo Kawanami, Yoshihiro Ito, Kenji Watanabe, Daigo Yamauchi, Fumiya Sawashima, Osamu Sasaoka, Yoichiro Iizuka, Hiromi Fujinaka, Takugo Kasaishi
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Publication number: 20170305697Abstract: A sheet detecting apparatus has an abutment member against which a leading edge of a conveyed sheet abuts, a holding member with positioning portion to hold the abutment member, and an indicator flag moving in association with movement of the abutment member. The abutment member moves between an abutment position and a retracted position, the holding member moves between a first position and a second position retracted from the first position, the abutment member is pushed by the leading edge of the sheet when the holding member is at the first position, the push moves the holding member the second position, the holding member is moves in a direction away from the first position so that the leading edge of the sheet is separated from the abutment surface, and the holding member moves from the second position to the first position when the abutment member is pushed by the sheet to the retracted position.Type: ApplicationFiled: July 7, 2017Publication date: October 26, 2017Inventor: Yoichiro Iizuka
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Patent number: 9771221Abstract: A belt transporting device includes a belt; first and second adjustment members provided at two respective ends of a tension roller in a belt width direction orthogonal to a direction of rotation of the belt, the first and second adjustment members each being movable by receiving a force from the belt; and a link member that interlocks the movement of the first adjustment member and the movement of the second adjustment member. If the belt is laterally shifted in the belt width direction, one of the first and second adjustment members moves by receiving a force from the belt while the other is moved by the link member such that the tension roller is tilted with respect to a driving roller.Type: GrantFiled: July 27, 2015Date of Patent: September 26, 2017Assignee: Canon Kabushiki KaishaInventors: Takeo Kawanami, Yoshihiro Ito, Kenji Watanabe, Daigo Yamauchi, Fumiya Sawashima, Osamu Sasaoka, Yoichiro Iizuka, Hiromi Fujinaka, Takugo Kasaishi