Patents by Inventor Takeyuki Takagi

Takeyuki Takagi 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: 20150160603
    Abstract: A developing cartridge may include a housing configured to hold toner. The cartridge may further include a developing roller including a developing roller shaft, a supply roller including a supply roller shaft, a developing electrode and a supply electrode. The developing electrode and supply electrode may be configured to guide an electrical contact of an image forming apparatus in one or more directions. In some examples, the developing electrode and supply electrode may have angled surfaces that extend toward one another.
    Type: Application
    Filed: February 13, 2015
    Publication date: June 11, 2015
    Inventors: Takeyuki Takagi, Hiroki Mori
  • Publication number: 20150160606
    Abstract: A developing cartridge may include a housing configured to hold toner. The cartridge may further include a developing roller including a developing roller shaft, a supply roller including a supply roller shaft, a developing electrode and a supply electrode. The developing electrode and supply electrode may be configured to guide an electrical contact of an image forming apparatus in one or more directions. In some examples, the developing electrode and supply electrode may be arranged relative to an arrangement direction of fixing members used to fix the electrodes to the cartridge.
    Type: Application
    Filed: February 13, 2015
    Publication date: June 11, 2015
    Inventors: Takeyuki Takagi, Hiroki Mori
  • Publication number: 20150160604
    Abstract: A developing cartridge may include a housing configured to hold toner. The cartridge may further include a developing roller including a developing roller shaft, a supply roller including a supply roller shaft, a developing electrode and a supply electrode. The developing electrode and supply electrode may be configured to guide an electrical contact of an image forming apparatus in one or more directions. In some examples, the developing electrode and supply electrode may have angled surfaces that extend toward one another.
    Type: Application
    Filed: February 13, 2015
    Publication date: June 11, 2015
    Inventors: Takeyuki Takagi, Hiroki Mori
  • Patent number: 9042777
    Abstract: A developing cartridge includes a receiving member which receives a driving force from outside; a first rotary member which rotates by the driving force; a second rotary member which takes a driven position where the second rotary member rotates by the driving force from the first rotary member and a non-driven position where transmission of the driving force from the first rotary member is cut off; a detectable member which moves as the rotation of the second rotary member, and a first portion which rotates by the driving force. The second rotary member includes a second portion. When the second rotary member is in the non-driven position, the second portion is provided on a rotating locus drawn by the first portion. The first portion engages with the second portion as the first portion rotates, so that the second rotary member rotates from the non-driven position to the driven position.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: May 26, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Takeyuki Takagi
  • Patent number: 9037032
    Abstract: A developing cartridge includes: a housing including a developing chamber and a developer accommodating chamber; a developing roller including a developing roller shaft; a supply roller including a supply roller shaft; a developing electrode, which is provided on an outer side of one sidewall of the housing, which is electrically connected to the developing roller shaft, and which includes a developing protrusion protruding parallel to the developing roller shaft at a position different from the developing roller shaft; and a supply electrode, which is provided on the outer side of the one sidewall, which is electrically connected to the supply roller shaft, and which includes a supply protrusion protruding parallel to the supply roller shaft at a position different from the supply roller shaft. The developing protrusion and the supply protrusion are arranged in an arrangement direction of the developing chamber and the developer accommodating chamber.
    Type: Grant
    Filed: October 4, 2013
    Date of Patent: May 19, 2015
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takeyuki Takagi, Hiroki Mori
  • Publication number: 20150055986
    Abstract: A developing cartridge may include a housing configured to hold toner. The cartridge may further include a developing roller including a developing roller shaft, a supply roller including a supply roller shaft, a developing electrode and a supply electrode. The developing electrode and supply electrode may be configured to guide an electrical contact of an image forming apparatus in one or more directions. In some examples, the developing electrode and supply electrode may have angled surfaces that extend toward one another.
    Type: Application
    Filed: October 31, 2014
    Publication date: February 26, 2015
    Inventors: Takeyuki Takagi, Hiroki Mori
  • Publication number: 20150010332
    Abstract: A developing cartridge includes: a developing roller that is rotatable about a developing roller axis line, which extends in a predetermined direction; a supply roller, which is rotatable about a supply roller axis line, which extends in the predetermined direction, and which supplies developer to the developing roller; a developing roller driving gear that is connected to the developing roller; a supply roller driving gear that is connected to the supply roller; and a driving force transmission gear, which is rotatable about a gear axis line extending in the predetermined direction, and which includes: a first gear part meshed with the developing roller driving gear; and a second gear part meshed with the supply roller driving gear. The driving force transmission gear transmits driving force to the developing roller driving gear and the supply roller driving gear.
    Type: Application
    Filed: September 23, 2014
    Publication date: January 8, 2015
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Takeyuki Takagi, Hiroki Mori
  • Publication number: 20150010321
    Abstract: A developing cartridge includes a case having a first sidewall and a second sidewall opposite to the first sidewall, and a developing roller disposed between the first sidewall and second sidewall. The developing roller can include a developing roller shaft and a developing roller member configured to carry a developing agent thereon, the developing roller member disposed around the developing roller shaft. Also, the developing cartridge can include an electrode disposed on the first sidewall adjacent to the developing roller shaft, the electrode electrically connected to the developing roller member, and a driven coupling disposed on the second sidewall. The electrode can include, an extending portion extending in a direction away from the first sidewall. An outermost periphery of the driven coupling defines a projection plane projecting in a direction towards the electrode, wherein at least a part of the extending portion is disposed within the projection plane.
    Type: Application
    Filed: September 25, 2014
    Publication date: January 8, 2015
    Inventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
  • Patent number: 8886076
    Abstract: A developing cartridge includes a case having a first sidewall and a second sidewall opposite to the first sidewall, and a developing roller disposed between the first sidewall and second sidewall. The developing roller can include a developing roller shaft and a developing roller member configured to carry a developing agent thereon, the developing roller member disposed around the developing roller shaft. Also, the developing cartridge can include an electrode disposed on the first sidewall adjacent to the developing roller shaft, the electrode electrically connected to the developing roller member, and a driven coupling disposed on the second sidewall. The electrode can include, an extending portion extending in a direction away from the first sidewall. An outermost periphery of the driven coupling defines a projection plane projecting in a direction towards the electrode, wherein at least a part of the extending portion is disposed within the projection plane.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: November 11, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
  • Patent number: 8873993
    Abstract: A developing cartridge includes a case having a first sidewall and a second sidewall opposite to the first sidewall, and a developing roller disposed between the first sidewall and second sidewall. The developing roller can include a developing roller shaft and a developing roller member configured to carry a developing agent thereon, the developing roller member disposed around the developing roller shaft. Also, the developing cartridge can include an electrode disposed on the first sidewall adjacent to the developing roller shaft, the electrode electrically connected to the developing roller member, and a driven coupling disposed on the second sidewall. The electrode can include, an extending portion extending in a direction away from the first sidewall. An outermost periphery of the driven coupling defines a projection plane projecting in a direction towards the electrode, wherein at least a part of the extending portion is disposed within the projection plane.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: October 28, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
  • Publication number: 20140241756
    Abstract: A developing cartridge is provided. The developing cartridge includes a housing which accommodates developer therein, a receiving member which receives a driving force output member provided in an image forming apparatus, a developing roller which rotates by the driving force received by the receiving member, and a detectable rotary member including a detectable portion, which is a detection target to be detected by a detection member provided in the image forming apparatus, and a contact portion which is provided away from the detectable portion. The detectable rotary member rotates from a retreat position to an initial position where the detectable rotary member is rotated by the driving force received by the receiving member, by the contact portion contacting an interference member fixed in the image forming apparatus in a process of mounting the developing cartridge into the image forming apparatus.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 28, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Takeyuki TAKAGI
  • Patent number: 8798492
    Abstract: A developing cartridge includes a case having a first sidewall and a second sidewall opposite to the first sidewall, and a developing roller disposed between the first sidewall and second sidewall. The developing roller can include a developing roller shaft and a developing roller member configured to carry a developing agent thereon, the developing roller member disposed around the developing roller shaft. Also, the developing cartridge can include an electrode disposed on the first sidewall adjacent to the developing roller shaft, the electrode electrically connected to the developing roller member, and a driven coupling disposed on the second sidewall. The electrode can include, an extending portion extending in a direction away from the first sidewall. An outermost periphery of the driven coupling defines a projection plane projecting in a direction towards the electrode, wherein at least a part of the extending portion is disposed within the projection plane.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: August 5, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
  • Publication number: 20140212172
    Abstract: A developing cartridge includes a receiving member which receives a driving force from outside; a first rotary member which rotates by the driving force; a second rotary member which takes a driven position where the second rotary member rotates by the driving force from the first rotary member and a non-driven position where transmission of the driving force from the first rotary member is cut off; a detectable member which moves as the rotation of the second rotary member, and a first portion which rotates by the driving force. The second rotary member includes a second portion. When the second rotary member is in the non-driven position, the second portion is provided on a rotating locus drawn by the first portion. The first portion engages with the second portion as the first portion rotates, so that the second rotary member rotates from the non-driven position to the driven position.
    Type: Application
    Filed: March 28, 2014
    Publication date: July 31, 2014
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventor: Takeyuki TAKAGI
  • Patent number: 8787786
    Abstract: A developing cartridge includes a case having a first sidewall and a second sidewall opposite to the first sidewall, and a developing roller disposed between the first sidewall and second sidewall. The developing roller can include a developing roller shaft and a developing roller member configured to carry a developing agent thereon, the developing roller member disposed around the developing roller shaft. Also, the developing cartridge can include an electrode disposed on the first sidewall adjacent to the developing roller shaft, the electrode electrically connected to the developing roller member, and a driven coupling disposed on the second sidewall. The electrode can include, an extending portion extending in a direction away from the first sidewall. An outermost periphery of the driven coupling defines a projection plane projecting in a direction towards the electrode, wherein at least a part of the extending portion is disposed within the projection plane.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: July 22, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
  • Publication number: 20140153973
    Abstract: A developing cartridge includes: a developing roller that is rotatable about a developing roller axis line, which extends in a predetermined direction; a supply roller, which is rotatable about a supply roller axis line, which extends in the predetermined direction, and which supplies developer to the developing roller; a developing roller driving gear that is connected to the developing roller; a supply roller driving gear that is connected to the supply roller; and a driving force transmission gear, which is rotatable about a gear axis line extending in the predetermined direction, and which includes: a first gear part meshed with the developing roller driving gear; and a second gear part meshed with the supply roller driving gear. The driving force transmission gear transmits driving force to the developing roller driving gear and the supply roller driving gear.
    Type: Application
    Filed: October 14, 2013
    Publication date: June 5, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Takeyuki TAKAGI, Hiroki MORI
  • Patent number: 8712286
    Abstract: A developing cartridge includes a receiving member which receives a driving force from outside; a first rotary member which rotates by the driving force; a second rotary member which takes a driven position where the second rotary member rotates by the driving force from the first rotary member and a non-driven position where transmission of the driving force from the first rotary member is cut off; a detectable member which moves as the rotation of the second rotary member, and a first portion which rotates by the driving force. The second rotary member includes a second portion. When the second rotary member is in the non-driven position, the second portion is provided on a rotating locus drawn by the first portion. The first portion engages with the second portion as the first portion rotates, so that the second rotary member rotates from the non-driven position to the driven position.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: April 29, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Takeyuki Takagi
  • Patent number: 8693914
    Abstract: A developing cartridge includes a case having a first sidewall and a second sidewall opposite to the first sidewall, and a developing roller disposed between the first sidewall and second sidewall. The developing roller can include a developing roller shaft and a developing roller member configured to carry a developing agent thereon, the developing roller member disposed around the developing roller shaft. Also, the developing cartridge can include an electrode disposed on the first sidewall adjacent to the developing roller shaft, the electrode electrically connected to the developing roller member, and a driven coupling disposed on the second sidewall. The electrode can include, an extending portion extending in a direction away from the first sidewall. An outermost periphery of the driven coupling defines a projection plane projecting in a direction towards the electrode, wherein at least a part of the extending portion is disposed within the projection plane.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: April 8, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
  • Patent number: 8676064
    Abstract: A developing cartridge is provided. The developing cartridge includes a housing which accommodates developer therein, a receiving member which receives a driving force output member provided in an image forming apparatus, a developing roller which rotates by the driving force received by the receiving member, and a detectable rotary member including a detectable portion, which is a detection target to be detected by a detection member provided in the image forming apparatus, and a contact portion which is provided away from the detectable portion. The detectable rotary member rotates from a retreat position to an initial position where the detectable rotary member is rotated by the driving force received by the receiving member, by the contact portion contacting an interference member fixed in the image forming apparatus in a process of mounting the developing cartridge into the image forming apparatus.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: March 18, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Takeyuki Takagi
  • Publication number: 20140050508
    Abstract: A developing cartridge includes a case having a first sidewall and a second sidewall opposite to the first sidewall, and a developing roller disposed between the first sidewall and second sidewall. The developing roller can include a developing roller shaft and a developing roller member configured to carry a developing agent thereon, the developing roller member disposed around the developing roller shaft. Also, the developing cartridge can include an electrode disposed on the first sidewall adjacent to the developing roller shaft, the electrode electrically connected to the developing roller member, and a driven coupling disposed on the second sidewall. The electrode can include, an extending portion extending in a direction away from the first sidewall. An outermost periphery of the driven coupling defines a projection plane projecting in a direction towards the electrode, wherein at least a part of the extending portion is disposed within the projection plane.
    Type: Application
    Filed: October 18, 2013
    Publication date: February 20, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
  • Patent number: D718379
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: November 25, 2014
    Assignee: Brother Industries, Ltd.
    Inventors: Susumu Sakuma, Takeyuki Takagi