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: 20180107152Abstract: 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: December 19, 2017Publication date: April 19, 2018Applicant: BROTHER KOGYO KABUSHIKI KAISHAInventors: Takeyuki TAKAGI, Hiroki MORI
-
Publication number: 20180052406Abstract: A developing cartridge is provided. The developing cartridge includes a housing which accommodates developer therein, a receiving member provided which couples with a force output member of an image forming apparatus to receive a driving force, a developing roller which rotates by the driving force received by the receiving member; a detectable rotary member having a first detectable portion and a second detectable portion and rotates by the driving force from a first rotational position where the first detectable portion is detected by a detection member provided in the image forming apparatus to a second rotational position where the second detectable portion is detected by the detection member, and a cut-off mechanism which cuts off a transmission of the driving force from the receiving member to the detectable rotary member in a state where the detectable rotary member is positioned in the second rational position.Type: ApplicationFiled: October 31, 2017Publication date: February 22, 2018Inventor: Takeyuki Takagi
-
Patent number: 9851689Abstract: 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: GrantFiled: January 9, 2017Date of Patent: December 26, 2017Assignee: Brother Kogyo Kabushiki KaishaInventors: Takeyuki Takagi, Hiroki Mori
-
Patent number: 9835976Abstract: A developing cartridge is provided. The developing cartridge includes a housing which accommodates developer therein, a receiving member provided which couples with a force output member of an image forming apparatus to receive a driving force, a developing roller which rotates by the driving force received by the receiving member; a detectable rotary member having a first detectable portion and a second detectable portion and rotates by the driving force from a first rotational position where the first detectable portion is detected by a detection member provided in the image forming apparatus to a second rotational position where the second detectable portion is detected by the detection member, and a cut-off mechanism which cuts off a transmission of the driving force from the receiving member to the detectable rotary member in a state where the detectable rotary member is positioned in the second rational position.Type: GrantFiled: January 5, 2016Date of Patent: December 5, 2017Assignee: Brother Kogyo Kabushiki KaishaInventor: Takeyuki Takagi
-
Publication number: 20170219974Abstract: A developing cartridge may include a rotary gear rotatable about one axis and a detection gear rotatable about another axis. The detection gear is configured to be not rotatable with the rotary gear in a case where the rotary gear rotates from a first rotational position to a second rotational position, while being configured to be rotatable with the rotary gear in a case where the rotary gear rotates from the second rotational position to a third rotational position.Type: ApplicationFiled: April 11, 2017Publication date: August 3, 2017Inventor: Takeyuki Takagi
-
Patent number: 9720347Abstract: 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: November 29, 2016Date of Patent: August 1, 2017Assignee: Brother Kogyo Kabushiki KaishaInventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
-
Patent number: 9709926Abstract: 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: June 20, 2016Date of Patent: July 18, 2017Assignee: Brother Kogyo Kabushiki KaishaInventor: Takeyuki Takagi
-
Publication number: 20170146949Abstract: 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: January 9, 2017Publication date: May 25, 2017Inventors: Takeyuki Takagi, Hiroki Mori
-
Patent number: 9651895Abstract: A developing cartridge may include multiple rotary members, at least one of the rotary members configured to be detected by an image forming apparatus. In one example, the rotary members may include engagement portions configured to engage with one another to rotate the rotary members. Additionally or alternatively, in a case where one rotary member is in a driven position, the other rotary member may be rotatable a predefined amount from a non-driving state in which the other rotary member is rotatably disengaged from the one rotary member, to a driving state in which the other rotary member rotatably engages the one rotary member with the engagement portions in contact with one another.Type: GrantFiled: August 22, 2016Date of Patent: May 16, 2017Assignee: Brother Kogyo Kabushiki KaishaInventor: Takeyuki Takagi
-
Patent number: 9632456Abstract: 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: GrantFiled: February 29, 2016Date of Patent: April 25, 2017Assignee: Brother Kogyo Kabushiki KaishaInventors: Takeyuki Takagi, Hiroki Mori
-
Publication number: 20170082943Abstract: 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: November 29, 2016Publication date: March 23, 2017Inventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
-
Patent number: 9568856Abstract: 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: GrantFiled: January 11, 2016Date of Patent: February 14, 2017Assignee: Brother Kogyo Kabushiki KaishaInventors: Takeyuki Takagi, Hiroki Mori
-
Publication number: 20160357127Abstract: A developing cartridge may include multiple rotary members, at least one of the rotary members configured to be detected by an image forming apparatus. In one example, the rotary members may include engagement portions configured to engage with one another to rotate the rotary members. Additionally or alternatively, in a case where one rotary member is in a driven position, the other rotary member may be rotatable a predefined amount from a non-driving state in which the other rotary member is rotatably disengaged from the one rotary member, to a driving state in which the other rotary member rotatably engages the one rotary member with the engagement portions in contact with one another.Type: ApplicationFiled: August 22, 2016Publication date: December 8, 2016Inventor: Takeyuki Takagi
-
Patent number: 9513595Abstract: 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: December 18, 2015Date of Patent: December 6, 2016Assignee: Brother Kogyo Kabushiki KaishaInventors: Shougo Sato, Takeyuki Takagi, Naoya Kamimura
-
Publication number: 20160299457Abstract: 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: June 20, 2016Publication date: October 13, 2016Inventor: Takeyuki Takagi
-
Patent number: 9448505Abstract: A developing cartridge may include multiple rotary members, at least one of the rotary members configured to be detected by an image forming apparatus. In one example, the rotary members may include engagement portions configured to engage with one another to rotate the rotary members. Additionally or alternatively, in a case where one rotary member is in a driven position, the other rotary member may be rotatable a predefined amount from a non-driving state in which the other rotary member is rotatably disengaged from the one rotary member, to a driving state in which the other rotary member rotatably engages the one rotary member with the engagement portions in contact with one another.Type: GrantFiled: April 23, 2015Date of Patent: September 20, 2016Assignee: Brother Kogyo Kabushiki KaishaInventor: Takeyuki Takagi
-
Patent number: 9405266Abstract: 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: July 2, 2015Date of Patent: August 2, 2016Assignee: Brother Kogyo Kabushiki KaishaInventor: Takeyuki Takagi
-
Patent number: 9383681Abstract: 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: GrantFiled: August 5, 2015Date of Patent: July 5, 2016Assignee: Brother Kogyo Kabushiki KaishaInventors: Takeyuki Takagi, Hiroki Mori
-
Publication number: 20160179032Abstract: 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 29, 2016Publication date: June 23, 2016Inventors: Takeyuki Takagi, Hiroki Mori
-
Publication number: 20160131995Abstract: A developing cartridge is provided. The developing cartridge includes a housing which accommodates developer therein, a receiving member provided which couples with a force output member of an image forming apparatus to receive a driving force, a developing roller which rotates by the driving force received by the receiving member; a detectable rotary member having a first detectable portion and a second detectable portion and rotates by the driving force from a first rotational position where the first detectable portion is detected by a detection member provided in the image forming apparatus to a second rotational position where the second detectable portion is detected by the detection member, and a cut-off mechanism which cuts off a transmission of the driving force from the receiving member to the detectable rotary member in a state where the detectable rotary member is positioned in the second rational position.Type: ApplicationFiled: January 5, 2016Publication date: May 12, 2016Inventor: Takeyuki Takagi