Patents by Inventor Tatsuro Harada
Tatsuro Harada 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: 11809123Abstract: An image forming unit to be attached to an apparatus body of an image forming apparatus includes a first cartridge including a driven portion configured to rotate on a first rotational axis; and a second cartridge configured separable from the first cartridge. The second cartridge includes an input portion configured to receive driving force from the apparatus body; and a drive transmission portion configured to rotate on a second rotational axis and to transmit the driving force to the driven portion.Type: GrantFiled: May 24, 2022Date of Patent: November 7, 2023Assignee: Canon Kabushiki KaishaInventors: Kazutaka Sueshige, Tatsuro Harada, Takayuki Yada, Akinobu Hirayama
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Patent number: 11550255Abstract: An image forming apparatus including a photosensitive member, a developing cartridge that has a developing member, a developing frame, an end member attached to the developing frame, and a restricting portion restricting a swing movement of the end member, and an apparatus body to which the developing cartridge is attachable. The apparatus body includes a movement unit moving the developing cartridge from a first position to a second position, a positioning portion engaging with the end member when the developing cartridge is located at the second position, and a restriction releasing portion acting on the restricting portion with a movement of the developing cartridge from the first position to the second position and releasing restriction of the swing movement of the end member, the restriction releasing portion being provided at a part of the apparatus main body excluding the movement unit.Type: GrantFiled: July 2, 2021Date of Patent: January 10, 2023Assignee: Canon Kabushiki KaishaInventors: Masato Tanabe, Masakazu Tatsumi, Tatsuro Harada
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Publication number: 20220283535Abstract: An image forming unit to be attached to an apparatus body of an image forming apparatus includes a first cartridge including a driven portion configured to rotate on a first rotational axis; and a second cartridge configured separable from the first cartridge. The second cartridge includes an input portion configured to receive driving force from the apparatus body; and a drive transmission portion configured to rotate on a second rotational axis and to transmit the driving force to the driven portion.Type: ApplicationFiled: May 24, 2022Publication date: September 8, 2022Inventors: Kazutaka Sueshige, Tatsuro Harada, Takayuki Yada, Akinobu Hirayama
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Patent number: 11378909Abstract: An image forming unit to be attached to an apparatus body of an image forming apparatus includes a first cartridge including a driven portion configured to rotate on a first rotational axis; and a second cartridge configured separable from the first cartridge. The second cartridge includes an input portion configured to receive driving force from the apparatus body; and a drive transmission portion configured to rotate on a second rotational axis and to transmit the driving force to the driven portion.Type: GrantFiled: March 15, 2021Date of Patent: July 5, 2022Assignee: Canon Kabushiki KaishaInventors: Kazutaka Sueshige, Tatsuro Harada, Takayuki Yada, Akinobu Hirayama
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Publication number: 20210333742Abstract: An image forming apparatus including a photosensitive member, a developing cartridge that has a developing member, a developing frame, an end member attached to the developing frame, and a restricting portion restricting a swing movement of the end member, and an apparatus body to which the developing cartridge is attachable. The apparatus body includes a movement unit moving the developing cartridge from a first position to a second position, a positioning portion engaging with the end member when the developing cartridge is located at the second position, and a restriction releasing portion acting on the restricting portion with a movement of the developing cartridge from the first position to the second position and releasing restriction of the swing movement of the end member, the restriction releasing portion being provided at a part of the apparatus main body excluding the movement unit.Type: ApplicationFiled: July 2, 2021Publication date: October 28, 2021Inventors: Masato Tanabe, Masakazu Tatsumi, Tatsuro Harada
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Patent number: 11086267Abstract: An image forming apparatus including a photosensitive member, a developing cartridge that has a developing member, a developing frame, an end member attached to the developing frame, and a restricting portion restricting a swing movement of the end member, and an apparatus body to which the developing cartridge is attachable. The apparatus body includes a movement unit moving the developing cartridge from a first position to a second position, a positioning portion engaging with the end member when the developing cartridge is located at the second position, and a restriction releasing portion acting on the restricting portion with a movement of the developing cartridge from the first position to the second position and releasing restriction of the swing movement of the end member, the restriction releasing portion being provided at a part of the apparatus main body excluding the movement unit.Type: GrantFiled: September 13, 2019Date of Patent: August 10, 2021Assignee: Canon Kabushiki KaishaInventors: Masato Tanabe, Masakazu Tatsumi, Tatsuro Harada
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Publication number: 20210216034Abstract: An image forming unit to be attached to an apparatus body of an image forming apparatus includes a first cartridge including a driven portion configured to rotate on a first rotational axis; and a second cartridge configured separable from the first cartridge. The second cartridge includes an input portion configured to receive driving force from the apparatus body; and a drive transmission portion configured to rotate on a second rotational axis and to transmit the driving force to the driven portion.Type: ApplicationFiled: March 15, 2021Publication date: July 15, 2021Inventors: Kazutaka Sueshige, Tatsuro Harada, Takayuki Yada, Akinobu Hirayama
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Patent number: 10983475Abstract: An image forming unit to be attached to an apparatus body of an image forming apparatus includes a first cartridge including a driven portion configured to rotate on a first rotational axis; and a second cartridge configured separable from the first cartridge. The second cartridge includes an input portion configured to receive driving force from the apparatus body; and a drive transmission portion configured to rotate on a second rotational axis and to transmit the driving force to the driven portion.Type: GrantFiled: February 24, 2020Date of Patent: April 20, 2021Assignee: Canon Kabushiki KaishaInventors: Kazutaka Sueshige, Tatsuro Harada, Takayuki Yada, Akinobu Hirayama
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Patent number: 10969730Abstract: An image forming apparatus includes an apparatus body, a first cartridge detachably attached to the apparatus body, a second cartridge detachably attached to the apparatus body in a state where the first cartridge has been attached to the apparatus body, a guide unit configured to guide the first cartridge, and a drawer member configured to be inserted to and drawn out of the apparatus body in a direction intersecting the axial direction. The drawer member is inserted to the apparatus body in a state supporting the second cartridge. The first cartridge includes an engagement portion and the second cartridge includes an engaged portion, and the second cartridge is supported by the first cartridge via engagement of the engagement portion and the engaged portion.Type: GrantFiled: February 24, 2020Date of Patent: April 6, 2021Assignee: Canon Kabushiki KaishaInventors: Kazutaka Sueshige, Tatsuro Harada, Takayuki Yada, Tetsuo Uesugi, Toru Oguma
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Publication number: 20200272088Abstract: An image forming unit to be attached to an apparatus body of an image forming apparatus includes a first cartridge including a driven portion configured to rotate on a first rotational axis; and a second cartridge configured separable from the first cartridge. The second cartridge includes an input portion configured to receive driving force from the apparatus body; and a drive transmission portion configured to rotate on a second rotational axis and to transmit the driving force to the driven portion.Type: ApplicationFiled: February 24, 2020Publication date: August 27, 2020Inventors: Kazutaka Sueshige, Tatsuro Harada, Takayuki Yada, Akinobu Hirayama
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Publication number: 20200272087Abstract: An image forming apparatus includes an apparatus body, a first cartridge detachably attached to the apparatus body, a second cartridge detachably attached to the apparatus body in a state where the first cartridge has been attached to the apparatus body, a guide unit configured to guide the first cartridge, and a drawer member configured to be inserted to and drawn out of the apparatus body in a direction intersecting the axial direction. The drawer member is inserted to the apparatus body in a state supporting the second cartridge. The first cartridge includes an engagement portion and the second cartridge includes an engaged portion, and the second cartridge is supported by the first cartridge via engagement of the engagement portion and the engaged portion.Type: ApplicationFiled: February 24, 2020Publication date: August 27, 2020Inventors: Kazutaka Sueshige, Tatsuro Harada, Takayuki Yada, Tetsuo Uesugi, Toru Oguma
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Publication number: 20200096935Abstract: An image forming apparatus including a photosensitive member, a developing cartridge that has a developing member, a developing frame, an end member attached to the developing frame, and a restricting portion restricting a swing movement of the end member, and an apparatus body to which the developing cartridge is attachable. The apparatus body includes a movement unit moving the developing cartridge from a first position to a second position, a positioning portion engaging with the end member when the developing cartridge is located at the second position, and a restriction releasing portion acting on the restricting portion with a movement of the developing cartridge from the first position to the second position and releasing restriction of the swing movement of the end member, the restriction releasing portion being provided at a part of the apparatus main body excluding the movement unit.Type: ApplicationFiled: September 13, 2019Publication date: March 26, 2020Inventors: Masato Tanabe, Masakazu Tatsumi, Tatsuro Harada
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Patent number: 10527971Abstract: A developing apparatus includes a first conveying member and a second conveying member shorter than the first conveying member. In a rotational direction of the rotation shaft, the second conveying member is disposed upstream of the first conveying member, with the fixed end of the second conveying member and the fixed end of the first conveying member placed one on another. The free length of the second conveying member at a first position, a second position, and a third position, which sequentially distance away from the driving transmission member in the axial direction of the rotation shaft, sequentially becomes larger.Type: GrantFiled: March 5, 2019Date of Patent: January 7, 2020Assignee: Canon Kabushiki KaishaInventors: Yuuki Nakamura, Tsukasa Abe, Tatsuro Harada
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Patent number: 10466616Abstract: A cartridge attachable to a main body of an image forming apparatus, the cartridge including a developer bearing member, a frame supporting the developer bearing member, a developing blade including a regulating member and a support member, and a collecting member. The collecting member includes a containing portion. The collecting member includes an opening opposing the developer bearing member. The containing portion extends in a rotational axis direction of the developer bearing member, and a sectional area of a longitudinal end portion area of the containing portion, orthogonal to the rotational axis direction, corresponding to a longitudinal end portion of the developer bearing member is larger than that of a longitudinal middle portion area of the containing portion.Type: GrantFiled: August 28, 2018Date of Patent: November 5, 2019Assignee: Canon Kabushiki KaishaInventors: Tatsuro Harada, Osamu Anan, Teruhiko Sasaki, Ryoji Kusudo
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Publication number: 20190278200Abstract: A developing apparatus includes a first conveying member and a second conveying member shorter than the first conveying member. In a rotational direction of the rotation shaft, the second conveying member is disposed upstream of the first conveying member, with the fixed end of the second conveying member and the fixed end of the first conveying member placed one on another. The free length of the second conveying member at a first position, a second position, and a third position, which sequentially distance away from the driving transmission member in the axial direction of the rotation shaft, sequentially becomes larger.Type: ApplicationFiled: March 5, 2019Publication date: September 12, 2019Inventors: Yuuki Nakamura, Tsukasa Abe, Tatsuro Harada
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Patent number: 10281873Abstract: A developing device, detachably mountable to an image forming apparatus main body, includes a developing frame containing a developer, a developing roller performing developing using the developer, and a plurality of electric contact points disposed at one end in an axial direction of the developing roller, on a face that intersects the axial direction. The developing device is pivotably centered on a pivot axis parallel to the axial direction of the developing roller, and electrically conducts with the image forming apparatus main body via the plurality of electric contact points when mounted to the image forming apparatus main body. In a plane perpendicular to the axial direction of the developing roller, a position of the pivot axis is within a polygon having a greatest area formed of outer shapes of the plurality of electric contact points and straight lines connecting the outer shapes of the multiple electric contact points.Type: GrantFiled: January 23, 2018Date of Patent: May 7, 2019Assignee: CANON KABUSHIKI KAISHAInventors: Daisuke Makiguchi, Tatsuro Harada, Hiroki Shimizu, Osamu Anan
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Patent number: 10241438Abstract: A developing device includes a developing unit including a developer bearing member and a developing frame member configured to support the developer bearing member. The developing unit is supported to be pivotable about a first shaft and a second shaft. A biasing member configured to bias the first shaft is provided.Type: GrantFiled: March 20, 2017Date of Patent: March 26, 2019Assignee: Canon Kabushiki KaishaInventors: Tsukasa Abe, Masato Tanabe, Tatsuro Harada, Kazutaka Sueshige, Takashi Yano
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Publication number: 20190064697Abstract: A cartridge attachable to a main body of an image forming apparatus, the cartridge including a developer bearing member, a frame supporting the developer bearing member, a developing blade including a regulating member and a support member, and a collecting member. The collecting member includes a containing portion. The collecting member includes an opening opposing the developer bearing member. The containing portion extends in a rotational axis direction of the developer bearing member, and a sectional area of a longitudinal end portion area of the containing portion, orthogonal to the rotational axis direction, corresponding to a longitudinal end portion of the developer bearing member is larger than that of a longitudinal middle portion area of the containing portion.Type: ApplicationFiled: August 28, 2018Publication date: February 28, 2019Inventors: Tatsuro Harada, Osamu Anan, Teruhiko Sasaki, Ryoji Kusudo
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Patent number: 10138762Abstract: A power generation system in which the combustion heat of hydrocarbon gas is used to heat the steam for power generation; at the same time, the exhaust heat thereof is used to dry and thy-distill low rank coal. The power generation system includes: a dry distillation step for dry-distilling low rank coal of high moisture content; a cooling step for cooling the fixed carbon obtained in the dry distillation step; a combustion step in which hydrocarbon gas obtained in the dry distillation step is used as the main fuel; and a power generation step in which there are provided a power generator moving a steam turbine by main steam generated in the combustion step and a condenser.Type: GrantFiled: September 13, 2013Date of Patent: November 27, 2018Assignee: KYUSHU ELECTRIC POWER CO., INC.Inventors: Tatsuro Harada, Seiichiro Matsuda, Isao Mochida, Jun-ichiro Hayashi, Yohsuke Matsushita, Tsuyoshi Yamamoto
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Patent number: D881986Type: GrantFiled: February 1, 2018Date of Patent: April 21, 2020Inventors: Tatsuro Harada, Masakazu Tatsumi, Teruhiko Sasaki