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).
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Publication number: 20150160603Abstract: 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: ApplicationFiled: February 13, 2015Publication date: June 11, 2015Inventors: Takeyuki Takagi, Hiroki Mori
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Publication number: 20150160606Abstract: 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: ApplicationFiled: February 13, 2015Publication date: June 11, 2015Inventors: Takeyuki Takagi, Hiroki Mori
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Publication number: 20150160604Abstract: 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: ApplicationFiled: February 13, 2015Publication date: June 11, 2015Inventors: Takeyuki Takagi, Hiroki Mori
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Patent number: 9042777Abstract: 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: GrantFiled: March 28, 2014Date of Patent: May 26, 2015Assignee: Brother Kogyo Kabushiki KaishaInventor: Takeyuki Takagi
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Patent number: 9037032Abstract: 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: GrantFiled: October 4, 2013Date of Patent: May 19, 2015Assignee: Brother Kogyo Kabushiki KaishaInventors: Takeyuki Takagi, Hiroki Mori
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Publication number: 20150055986Abstract: 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: ApplicationFiled: October 31, 2014Publication date: February 26, 2015Inventors: Takeyuki Takagi, Hiroki Mori
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Publication number: 20150010332Abstract: 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: ApplicationFiled: September 23, 2014Publication date: January 8, 2015Applicant: Brother Kogyo Kabushiki KaishaInventors: Takeyuki Takagi, Hiroki Mori
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Publication number: 20150010321Abstract: 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: ApplicationFiled: September 25, 2014Publication date: January 8, 2015Inventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
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Patent number: 8886076Abstract: 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: GrantFiled: October 18, 2013Date of Patent: November 11, 2014Assignee: Brother Kogyo Kabushiki KaishaInventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
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Patent number: 8873993Abstract: 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: GrantFiled: October 18, 2013Date of Patent: October 28, 2014Assignee: Brother Kogyo Kabushiki KaishaInventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
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Publication number: 20140241756Abstract: 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: ApplicationFiled: February 25, 2014Publication date: August 28, 2014Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventor: Takeyuki TAKAGI
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Patent number: 8798492Abstract: 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: GrantFiled: October 18, 2013Date of Patent: August 5, 2014Assignee: Brother Kogyo Kabushiki KaishaInventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
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Publication number: 20140212172Abstract: 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: ApplicationFiled: March 28, 2014Publication date: July 31, 2014Applicant: Brother Kogyo Kabushiki KaishaInventor: Takeyuki TAKAGI
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Patent number: 8787786Abstract: 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: GrantFiled: October 18, 2013Date of Patent: July 22, 2014Assignee: Brother Kogyo Kabushiki KaishaInventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
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Publication number: 20140153973Abstract: 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: ApplicationFiled: October 14, 2013Publication date: June 5, 2014Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Takeyuki TAKAGI, Hiroki MORI
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Patent number: 8712286Abstract: 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: GrantFiled: March 21, 2011Date of Patent: April 29, 2014Assignee: Brother Kogyo Kabushiki KaishaInventor: Takeyuki Takagi
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Patent number: 8693914Abstract: 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: GrantFiled: June 11, 2012Date of Patent: April 8, 2014Assignee: Brother Kogyo Kabushiki KaishaInventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
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Patent number: 8676064Abstract: 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: GrantFiled: March 21, 2011Date of Patent: March 18, 2014Assignee: Brother Kogyo Kabushiki KaishaInventor: Takeyuki Takagi
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Publication number: 20140050508Abstract: 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: ApplicationFiled: October 18, 2013Publication date: February 20, 2014Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
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Patent number: D718379Type: GrantFiled: March 28, 2013Date of Patent: November 25, 2014Assignee: Brother Industries, Ltd.Inventors: Susumu Sakuma, Takeyuki Takagi