Patents by Inventor Akira Yoshimura
Akira Yoshimura 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: 20220035308Abstract: A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit containing the drum, a developing unit containing the roller and being movable so the roller contacts and is spaced from the drum, and a first force receiver receiving a force from a main-assembly first force applier by movement of a door from open to closed positions when mounting the cartridge and a second force receiver movable from a stand-by position by movement of the first force receiver by a force received from the first force applier. The second force receiver takes a projected position receiving a force from the second force applier to move the developing unit so the roller moves out of contact with the drum, the projected position being higher than the stand-by position.Type: ApplicationFiled: October 18, 2021Publication date: February 3, 2022Inventors: Akira Yoshimura, Kazunari Murayama, Susumu Nittani, Atsushi Numagami
-
Patent number: 11215949Abstract: A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit containing the drum, a developing unit containing the roller and being movable so the roller contacts and is spaced from the drum, and a first force receiver receiving a force from a main-assembly first force applier by movement of a door from open to closed positions when mounting the cartridge and a second force receiver movable from a stand-by position by movement of the first force receiver by a force received from the first force applier. The second force receiver takes a projected position receiving a force from the second force applier to move the developing unit so the roller moves out of contact with the drum, the projected position being higher than the stand-by position.Type: GrantFiled: July 23, 2020Date of Patent: January 4, 2022Assignee: Canon Kabushiki KaishaInventors: Akira Yoshimura, Kazunari Murayama, Susumu Nittani, Atsushi Numagami
-
Publication number: 20210405583Abstract: An image forming apparatus includes a mounting portion for mounting a process cartridge, the process cartridge including a first unit having an image bearing drum, and a second unit having a developing roller, the second unit being movable between a contact position in which the roller contacts the drum and a spaced position in which they are mutually spaced; an engageable member engageable with a force receiving portion provided on the second unit; wherein the engageable member is movable between a first position for maintaining the second unit in the spaced position by engaging with the force receiving portion, a second position for permitting movement of the second unit from the spaced position to the contact position; and a third position for permitting the process cartridge to be mounted, by being pressed by the process cartridge to retract, when the process cartridge is mounted to the mounting portion.Type: ApplicationFiled: September 9, 2021Publication date: December 30, 2021Inventors: Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Satoshi Nishiya, Yosuke Kashiide
-
Patent number: 11204580Abstract: According to an aspect of the present disclosure, an image forming apparatus includes a feeding module, an image forming module, and a fixing module. The feeding module feeds a recording material. The image forming module includes a photosensitive drum and forms a developer image on the recording material fed to the image forming module by the feeding module. The fixing module fixes the developer image formed by the image forming module to the recording material. The image forming module includes a scanner frame that supports an exposure unit configured to expose the photosensitive drum. The feeding module is installed on the scanner frame.Type: GrantFiled: December 11, 2020Date of Patent: December 21, 2021Assignee: Canon Kabushiki KaishaInventors: Yoshinori Hashimoto, Shogo Miyakawa, Akira Yoshimura, Hiromi Fujinaka, Isao Matsuoka, Shigeru Hoashi, Tomoya Kuruma
-
Patent number: 11181860Abstract: A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit containing the drum, a developing unit containing the roller and being movable so the roller contacts and is spaced from the drum, and a first force receiver receiving a force from a main-assembly first force applier by movement of a door from open to closed positions when mounting the cartridge and a second force receiver movable from a stand-by position by movement of the first force receiver by a force received from the first force applier. The second force receiver takes a projected position receiving a force from the second force applier to move the developing unit so the roller moves out of contact with the drum, the projected position being higher than the stand-by position.Type: GrantFiled: July 23, 2020Date of Patent: November 23, 2021Assignee: Canon Kabushiki KaishaInventors: Akira Yoshimura, Kazunari Murayama, Susumu Nittani, Atsushi Numagami
-
Patent number: 11156954Abstract: An image forming apparatus includes a mounting portion for mounting a process cartridge, the process cartridge including a first unit having an image bearing drum, and a second unit having a developing roller, the second unit being movable between a contact position in which the roller contacts the drum and a spaced position in which they are mutually spaced; an engageable member engageable with a force receiving portion provided on the second unit; wherein the engageable member is movable between a first position for maintaining the second unit in the spaced position by engaging with the force receiving portion, a second position for permitting movement of the second unit from the spaced position to the contact position; and a third position for permitting the process cartridge to be mounted, by being pressed by the process cartridge to retract, when the process cartridge is mounted to the mounting portion.Type: GrantFiled: December 19, 2019Date of Patent: October 26, 2021Assignee: Canon Kabushiki KaishaInventors: Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Satoshi Nishiya, Yosuke Kashiide
-
Publication number: 20210255562Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.Type: ApplicationFiled: May 3, 2021Publication date: August 19, 2021Inventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota
-
Publication number: 20210240126Abstract: An image forming apparatus including a first member having a first face, a first protrusion and a second protrusion projecting from the first face, and a groove portion formed in the first face, and a second member having a second face provided with a first hole and a second hole. The first protrusion and the second protrusion are inserted into the first hole and the second hole. The second face is superposed on the first face so that the groove portion located between the first member and the second member is in a visible state. The second face is sandwiched between a part of the first protrusion inserted in the first hole and the first face. The second hole in which the second protrusion has been inserted has a gap between the second hole and the second protrusion in an extending direction of the groove portion.Type: ApplicationFiled: January 27, 2021Publication date: August 5, 2021Inventors: Shogo NAGAMINE, Akira YOSHIMURA, Shoji YAMAMOTO
-
Publication number: 20210200139Abstract: According to an aspect of the present disclosure, an image forming apparatus includes a feeding module, an image forming module, and a fixing module. The feeding module feeds a recording material. The image forming module includes a photosensitive drum and forms a developer image on the recording material fed to the image forming module by the feeding module. The fixing module fixes the developer image formed by the image forming module to the recording material. The image forming module includes a scanner frame that supports an exposure unit configured to expose the photosensitive drum. The feeding module is installed on the scanner frame.Type: ApplicationFiled: December 11, 2020Publication date: July 1, 2021Inventors: Yoshinori Hashimoto, Shogo Miyakawa, Akira Yoshimura, Hiromi Fujinaka, Isao Matsuoka, Shigeru Hoashi, Tomoya Kuruma
-
Publication number: 20210181671Abstract: A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit containing the drum, a developing unit containing the roller and being movable so the roller contacts and is spaced from the drum, and a first force receiver receiving a force from a main-assembly first force applier by movement of a door from open to closed positions when mounting the cartridge and a second force receiver movable from a stand-by position by movement of the first force receiver by a force received from the first force applier. The second force receiver takes a projected position receiving a force from the second force applier to move the developing unit so the roller moves out of contact with the drum, the projected position being higher than the stand-by position.Type: ApplicationFiled: March 2, 2021Publication date: June 17, 2021Inventors: Akira Yoshimura, Kazunari Murayama, Susumu Nittani, Atsushi Numagami
-
Patent number: 11022908Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.Type: GrantFiled: October 26, 2020Date of Patent: June 1, 2021Assignee: Canon Kabushiki KaishaInventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota
-
Publication number: 20210132521Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.Type: ApplicationFiled: October 26, 2020Publication date: May 6, 2021Inventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota
-
Patent number: 10990433Abstract: An apparatus determines a similarity of names of a plurality of virtual machines, and divides the plurality of virtual machines into clusters based on a result of the determination such that virtual machines having a value that represents the similarity of the names that is equal to or less than a given threshold are included in a first cluster and virtual machines having a value that represents the similarity of the names that is greater than the given threshold are included in a second cluster. The apparatus places virtual machines included in the first cluster on different host machines.Type: GrantFiled: January 25, 2019Date of Patent: April 27, 2021Assignee: FUJITSU LIMITEDInventors: Satoshi Iwata, Hideaki Haruna, Akira Yoshimura, Yu Tomiyama, Tatsuya Koike, Jiaxing Xu
-
Patent number: 10976696Abstract: A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit containing the drum, a developing unit containing the roller and being movable so the roller contacts and is spaced from the drum, and a first force receiver receiving a force from a main-assembly first force applier by movement of a door from open to closed positions when mounting the cartridge and a second force receiver movable from a stand-by position by movement of the first force receiver by a force received from the first force applier. The second force receiver takes a projected position receiving a force from the second force applier to move the developing unit so the roller moves out of contact with the drum, the projected position being higher than the stand-by position.Type: GrantFiled: March 31, 2020Date of Patent: April 13, 2021Assignee: Canon Kabushiki KaishaInventors: Akira Yoshimura, Kazunari Murayama, Susumu Nittani, Atsushi Numagami
-
Publication number: 20210084189Abstract: An image forming apparatus includes an apparatus body, a sheet supporting portion, a sheet feeding portion configured to feed a sheet supported on the sheet supporting portion, a sheet regulation portion configured to regulate a position of the sheet in a width direction, an image forming portion including an exposing portion configured to expose a charged surface of an image bearing member, the image forming portion being configured to form an image on the sheet fed by the sheet feeding portion, and a frame member provided inside the apparatus body. A position of the exposing portion is determined with respect to the frame member. A position of the sheet regulation portion is determined with respect to the frame member.Type: ApplicationFiled: September 8, 2020Publication date: March 18, 2021Inventors: Masaki Sato, Akira Yoshimura
-
Patent number: 10883155Abstract: A method for recovering gold from an ore or a refining intermediate containing gold, comprising a step of contacting a gold-containing raw material obtained from the ore or the refining intermediate with an acidic solution containing a copper ion, an iron ion and a halide ion while supplying an oxidizing agent to leach the gold component in the raw material. The halide ion in the acidic solution is only a bromide ion, wherein the concentration of the bromide ion in the acidic solution is 100 g/L or more or the concentration of the bromide ion in the acidic solution is less than 100 g/L. When the concentration of the bromide ion is less than 100 g/L, a concentration ratio of the halide ion in the acidic solution is such that a ratio of the concentration of the chloride ion to the concentration of the bromide ion is ? or less.Type: GrantFiled: March 30, 2017Date of Patent: January 5, 2021Assignee: JX NIPPON MINING & METALS CORPORATIONInventors: Akira Yoshimura, Yoshifumi Abe
-
Publication number: 20200356046Abstract: A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit containing the drum, a developing unit containing the roller and being movable so the roller contacts and is spaced from the drum, and a first force receiver receiving a force from a main-assembly first force applier by movement of a door from open to closed positions when mounting the cartridge and a second force receiver movable from a stand-by position by movement of the first force receiver by a force received from the first force applier. The second force receiver takes a projected position receiving a force from the second force applier to move the developing unit so the roller moves out of contact with the drum, the projected position being higher than the stand-by position.Type: ApplicationFiled: July 23, 2020Publication date: November 12, 2020Inventors: Akira Yoshimura, Kazunari Murayama, Susumu Nittani, Atsushi Numagami
-
Patent number: 10761478Abstract: A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit containing the drum, a developing unit containing the roller and being movable so the roller contacts and is spaced from the drum, and a first force receiver receiving a force from a main-assembly first force applier by movement of a door from open to closed positions when mounting the cartridge and a second force receiver movable from a stand-by position by movement of the first force receiver by a force received from the first force applier. The second force receiver takes a projected position receiving a force from the second force applier to move the developing unit so the roller moves out of contact with the drum, the projected position being higher than the stand-by position.Type: GrantFiled: September 25, 2019Date of Patent: September 1, 2020Assignee: Canon Kabushiki KaishaInventors: Akira Yoshimura, Kazunari Murayama, Susumu Nittani, Atsushi Numagami
-
Publication number: 20200233374Abstract: A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit containing the drum, a developing unit containing the roller and being movable so the roller contacts and is spaced from the drum, and a first force receiver receiving a force from a main-assembly first force applier by movement of a door from open to closed positions when mounting the cartridge and a second force receiver movable from a stand-by position by movement of the first force receiver by a force received from the first force applier. The second force receiver takes a projected position receiving a force from the second force applier to move the developing unit so the roller moves out of contact with the drum, the projected position being higher than the stand-by position.Type: ApplicationFiled: March 31, 2020Publication date: July 23, 2020Inventors: Akira Yoshimura, Kazunari Murayama, Susumu Nittani, Atsushi Numagami
-
Publication number: 20200225616Abstract: An image forming apparatus includes a mounting portion for mounting a process cartridge, the process cartridge including a first unit having an image bearing drum, and a second unit having a developing roller, the second unit being movable between a contact position in which the roller contacts the drum and a spaced position in which they are mutually spaced; an engageable member engageable with a force receiving portion provided on the second unit; wherein the engageable member is movable between a first position for maintaining the second unit in the spaced position by engaging with the force receiving portion, a second position for permitting movement of the second unit from the spaced position to the contact position; and a third position for permitting the process cartridge to be mounted, by being pressed by the process cartridge to retract, when the process cartridge is mounted to the mounting portion.Type: ApplicationFiled: December 19, 2019Publication date: July 16, 2020Inventors: Akira Yoshimura, Tomio Noguchi, Yukio Kubo, Masaaki Sato, Satoshi Nishiya, Yosuke Kashiide