Patents by Inventor Ryosuke Tsuruga
Ryosuke Tsuruga 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: 11960221Abstract: An image forming apparatus includes an image forming portion, a belt, a plurality of stretching rollers including an inner roller and an upstream roller, an outer member, an urging member, a first position changing mechanism, a storing portion, a controller, and an operating portion. The controller controls the first position changing mechanism on the basis of a kind of a recording material on which an image is formed, first set information stored in the storing portion, and first input information for changing setting of a position of the urging member inputted to the controller through the operating portion.Type: GrantFiled: October 6, 2022Date of Patent: April 16, 2024Assignee: Canon Kabushiki KaishaInventors: Ryosuke Tsuruga, Yutaka Kakehi, Tatsuya Kohno, Manato Kobayashi
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Patent number: 11947285Abstract: An image forming apparatus includes an image forming portion, a rotatable endless belt, a plurality of stretching rollers including an inner roller and an upstream roller, an outer member, a guiding member, a sheet-like pressing member, and a coating member. The coating member is disposed on the pressing member so as not to contact the belt and is electrically grounded or electrically conducted to the guiding member. The coating member is formed of a material lower in surface resistivity than the pressing member.Type: GrantFiled: October 21, 2022Date of Patent: April 2, 2024Assignee: Canon Kabushiki KaishaInventors: Ryosuke Tsuruga, Manato Kobayashi, Yutaka Kakehi
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Publication number: 20230130018Abstract: An image forming apparatus includes an image forming portion, a rotatable endless belt, a plurality of stretching rollers including an inner roller and an upstream roller, an outer member, a guiding member, a sheet-like pressing member, and a coating member. The coating member is disposed on the pressing member so as not to contact the belt and is electrically grounded or electrically conducted to the guiding member. The coating member is formed of a material lower in surface resistivity than the pressing member.Type: ApplicationFiled: October 21, 2022Publication date: April 27, 2023Inventors: Ryosuke Tsuruga, Manato Kobayashi, Yutaka Kakehi
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Publication number: 20230107683Abstract: An image forming apparatus includes an image forming portion, a belt, a plurality of stretching rollers including an inner roller and an upstream roller, an outer member, an urging member, a first position changing mechanism, a storing portion, a controller, and an operating portion. The controller controls the first position changing mechanism on the basis of a kind of a recording material on which an image is formed, first set information stored in the storing portion, and first input information for changing setting of a position of the urging member inputted to the controller through the operating portion.Type: ApplicationFiled: October 6, 2022Publication date: April 6, 2023Inventors: Ryosuke Tsuruga, Yutaka Kakehi, Tatsuya Kohno, Manato Kobayashi
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Patent number: 11556082Abstract: An intermediary transfer belt having surface resistivity ?s of 1×109 ?/square or more and volume resistivity ?v of 1×1012 ?·cm or less includes a thermoplastic resin material containing carbon black. The carbon black contained in the thermoplastic resin material has a weight ratio of 22.5-28.5 weight % and include first carbon black and second carbon black. The first carbon black of the carbon black contained in the thermoplastic resin material has a weight ratio of 50-90 weight % and dibutyl phthalate absorption of 93-127 ml/100 g, and the second carbon black of the carbon black contained in the thermoplastic resin material has a weight ratio of 10-50 weight % and dibutyl phthalate absorption of 36-79 ml/100 g.Type: GrantFiled: July 10, 2019Date of Patent: January 17, 2023Assignee: CANON KABUSHIKI KAISHAInventors: Ryosuke Tsuruga, Toshiyuki Yoshida, Jun Ohira, Akeshi Asaka, Hiroto Sugimoto, Takanori Ueno, Koji Sato, Midai Suzuki, Atsushi Hori, Kaoru Okamoto, Megumi Uchino, Kazuhisa Shirayama, Naoto Kameyama, Kiyonori Soutome, Shigeo Kuroda, Akira Okano, Hiroshi Tominaga
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Patent number: 11500309Abstract: An image forming apparatus includes an image forming portion, a belt, a plurality of stretching rollers including an inner roller and an upstream roller, an outer member, an urging member, a first position changing mechanism, a storing portion, a controller, and an operating portion. The controller controls the first position changing mechanism on the basis of a kind of a recording material on which an image is formed, first set information stored in the storing portion, and first input information for changing setting of a position of the urging member inputted to the controller through the operating portion.Type: GrantFiled: June 15, 2021Date of Patent: November 15, 2022Assignee: Canon Kabushiki KaishaInventors: Ryosuke Tsuruga, Yutaka Kakehi, Tatsuya Kohno, Manato Kobayashi
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Patent number: 11347165Abstract: An image forming apparatus includes an image forming portion, a belt, an inner roller, an outer member, an inner roller position changing mechanism, an acquiring portion, and a controller. In a case that information acquired by the acquiring portion shows that first and second recording materials are coated paper, the controller controls a position changing mechanism so that a position of the inner roller when a toner image is transferred onto the second recording material is changed to a second position. In a case that the information acquired by the acquiring portion shows that the first and second recording materials are plain paper, the controller controls the position changing mechanism so that the position of the inner roller when the toner image is transferred onto the second recording material is maintained at a first position.Type: GrantFiled: June 17, 2021Date of Patent: May 31, 2022Assignee: Canon Kabushiki KaishaInventors: Yutaka Kakehi, Ryosuke Tsuruga, Tatsuya Kohno, Manato Kobayashi
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Publication number: 20210397113Abstract: An image forming apparatus includes an image forming portion, a belt, an inner roller, an outer member, an inner roller position changing mechanism, an acquiring portion, and a controller. In a case that second information acquired by the acquiring portion shows that first and second recording materials are coated paper, the controller controls a position changing mechanism so that a position of the inner roller when a toner image is transferred onto the second recording material is changed to a second position. In a case that the second information acquired by the acquiring portion shows that the first and second recording materials are plain paper, the controller controls the position changing mechanism so that the position of the inner roller when the toner image is transferred onto the second recording material is maintained at a first position.Type: ApplicationFiled: June 17, 2021Publication date: December 23, 2021Inventors: Yutaka Kakehi, Ryosuke Tsuruga, Tatsuya Kohno, Manato Kobayashi
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Publication number: 20210397112Abstract: An image forming apparatus includes an image forming portion, a belt, a plurality of stretching rollers including an inner roller and an upstream roller, an outer member, an urging member, a first position changing mechanism, a storing portion, a controller, and an operating portion. The controller controls the first position changing mechanism on the basis of a kind of a recording material on which an image is formed, first set information stored in the storing portion, and first input information for changing setting of a position of the urging member inputted to the controller through the operating portion.Type: ApplicationFiled: June 15, 2021Publication date: December 23, 2021Inventors: Ryosuke Tsuruga, Yutaka Kakehi, Tatsuya Kohno, Manato Kobayashi
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Patent number: 10768557Abstract: An intermediary transfer belt includes a base layer; an elastic layer laminated on or above the base layer and formed with a silicone rubber as an elastic member; an intermediary layer laminated on or above the elastic layer; and a surface layer laminated on or above the intermediary layer. The elastic layer is 60 degrees or less in JIS-A hardness and is 5 degrees or more in JIS-E hardness. The intermediary layer is 0.1 g/m2·24 h or more and 600 g/m2·24 h or less in water vapor permeability coefficient and is 1 ?m or more and 15 ?m or less in average thickness.Type: GrantFiled: December 17, 2019Date of Patent: September 8, 2020Assignee: CANON KABUSHIKI KAISHAInventors: Kaoru Okamoto, Kazuhisa Shirayama, Ryosuke Tsuruga, Yasutomo Tsuji
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Publication number: 20200201209Abstract: An intermediary transfer belt includes a base layer; an elastic layer laminated on or above the base layer and formed with a silicone rubber as an elastic member; an intermediary layer laminated on or above the elastic layer; and a surface layer laminated on or above the intermediary layer. The elastic layer is 60 degrees or less in JIS-A hardness and is 5 degrees or more in JIS-E hardness. The intermediary layer is 0.1 g/m2·24 h or more and 600 g/m2·24 h or less in water vapor permeability coefficient and is 1 ?m or more and 15 ?m or less in average thickness.Type: ApplicationFiled: December 17, 2019Publication date: June 25, 2020Inventors: Kaoru Okamoto, Kazuhisa Shirayama, Ryosuke Tsuruga, Yasutomo Tsuji
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Publication number: 20200019093Abstract: An intermediary transfer belt having surface resistivity ?s of 1×109 ?/square or more and volume resistivity ?v of 1×1012 ?·cm or less includes a thermoplastic resin material containing carbon black. The carbon black contained in the thermoplastic resin material has a weight ratio of 22.5-28.5 weight % and include first carbon black and second carbon black. The first carbon black of the carbon black contained in the thermoplastic resin material has a weight ratio of 50-90 weight % and dibutyl phthalate absorption of 93-127 ml/100 g, and the second carbon black of the carbon black contained in the thermoplastic resin material has a weight ratio of 10-50 weight % and dibutyl phthalate absorption of 36-79 ml/100 g.Type: ApplicationFiled: July 10, 2019Publication date: January 16, 2020Inventors: Ryosuke Tsuruga, Toshiyuki Yoshida, Jun Ohira, Akeshi Asaka, Hiroto Sugimoto, Takanori Ueno, Koji Sato, Midai Suzuki, Atsushi Hori, Kaoru Okamoto, Megumi Uchino, Kazuhisa Shirayama, Naoto Kameyama, Kiyonori Soutome, Shigeo Kuroda, Akira Okano, Hiroshi Tominaga