Patents by Inventor Junhui KIM
Junhui KIM 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: 12572099Abstract: An image forming apparatus includes: a body comprising a developing device, and a mounting unit from which a toner refill cartridge is detachable and which is connected to the developing device and delivers toner accommodated in the toner refill cartridge to the developing device. The body includes a housing having a communication hole so that the toner refill cartridge is mounted on the mounting unit from outside the image forming apparatus. The image forming apparatus includes a drive unit to provide a driving force to the toner refill cartridge so that toner is supplied from the toner refill cartridge to the developing device: a detecting unit to acquire a detected value corresponding to an amount of toner in the toner refill cartridge; and a controller to control an operation of the drive unit based on the detected value.Type: GrantFiled: January 12, 2022Date of Patent: March 10, 2026Assignee: Hewlett-Packard Development Company, L.P.Inventors: Seongho Jeong, Jongwon Han, Sungchul Ahn, Junhui Kim
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Publication number: 20260064039Abstract: A toner cartridge includes a body having a toner outlet therein, a coupler provided on the body, and an electric contact portion for electrical connection with a printing apparatus. Based on a force applied to the electric contact portion by an elastic sealing member between the printing apparatus and the toner outlet being referred to as a first force and a force applied to the electric contact portion by rotation of the coupler being referred to as a second force, a contact surface of the electric contact portion faces between a direction of the first force and a direction of the second force.Type: ApplicationFiled: November 11, 2025Publication date: March 5, 2026Applicant: Hewlett-Packard Development Company, L.P.Inventors: Junhui Kim, Jinsam Park, Sanghoon Lee, Jongin Kim
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Patent number: 12493252Abstract: A toner cartridge includes a body having a toner outlet therein, a coupler provided on the body, and an electric contact portion for electrical connection with a printing apparatus. Based on a force applied to the electric contact portion by an elastic sealing member between the printing apparatus and the toner outlet being referred to as a first force and a force applied to the electric contact portion by rotation of the coupler being referred to as a second force, a contact surface of the electric contact portion faces between a direction of the first force and a direction of the second force.Type: GrantFiled: December 5, 2022Date of Patent: December 9, 2025Assignee: Hewlett-Packard Development Company, L.P.Inventors: Junhui Kim, Jinsam Park, Sanghoon Lee, Jongin Kim
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Publication number: 20250355382Abstract: A toner cartridge includes a body having a toner outlet therein, a coupler provided on the body, and an electric contact portion for electrical connection with a printing apparatus. Based on a force applied to the electric contact portion by an elastic sealing member between the printing apparatus and the toner outlet being referred to as a first force and a force applied to the electric contact portion by rotation of the coupler being referred to as a second force, a contact surface of the electric contact portion faces between a direction of the first force and a direction of the second force.Type: ApplicationFiled: December 5, 2022Publication date: November 20, 2025Applicant: Hewlett-Packard Development Company, L.P.Inventors: Junhui Kim, Jinsam Park, Sanghoon Lee, Jongin Kim
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Patent number: 12393138Abstract: A toner cartridge includes: a body to contain toner and including a toner outlet to discharge the toner to the outside; an agitating member to rotate about a central axis of the body and agitate the toner contained in the body; a shutter member to move along the central axis with respect to the body, and having an open position to open the toner outlet and a blocked position to block the toner outlet; a driving force receiver exposed to the outside through the toner outlet when the shutter member is in the blocked position, and to rotate by receiving a driving force from the outside; and a driving shaft to transmit a rotational force of the driving force receiver to the agitating member.Type: GrantFiled: March 15, 2022Date of Patent: August 19, 2025Assignee: Hewlett-Packard Development Company, L.P.Inventors: Woongyong Choi, Yongnam Ahn, Junhui Kim
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Patent number: 12393157Abstract: A cartridge unit detachable from a main body of an image forming device includes: a rotation member; a driven coupler arranged at one end portion of the rotation member in an axial direction of the rotation member; and a coil spring arranged to be expandable and compressible in the axial direction, a first end portion of the coil spring being fixed onto the driven coupler, and the coil spring being wound in a first direction from the first end portion toward a second end portion. When a rotational force is transmitted to the second end portion of the coil spring in the first direction or in a second direction opposite to the first direction, a portion of the transmitted rotational force is converted into a force that decreases or increases a diameter of the coil spring, and the first end portion of the coil spring presses the driven coupler in a direction perpendicular to the axial direction.Type: GrantFiled: January 5, 2022Date of Patent: August 19, 2025Assignee: Hewlett-Packard Development Company, L.P.Inventors: Seungchan Park, Junhui Kim, Youngkwang Shin
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Publication number: 20250237975Abstract: A toner cartridge includes: a body to contain toner and including a toner outlet to discharge the toner to the outside; an agitating member to rotate about a central axis of the body and agitate the toner contained in the body; a shutter member to move along the central axis with respect to the body, and having an open position to open the toner outlet and a blocked position to block the toner outlet; a driving force receiver exposed to the outside through the toner outlet when the shutter member is in the blocked position, and to rotate by receiving a driving force from the outside; and a driving shaft to transmit a rotational force of the driving force receiver to the agitating member.Type: ApplicationFiled: March 15, 2022Publication date: July 24, 2025Applicant: Hewlett-Packard Development Company, L.P.Inventors: Woongyong CHOI, Yongnam AHN, Junhui KIM
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Patent number: 12346058Abstract: A process cartridge (2) includes: a photosensitive unit (100) including a photosensitive drum (21); and a development unit (200). The development unit includes: a developing roller (22); a toner chamber (203); a toner receiving unit (300) extending from the toner chamber to form a toner supply path (302) to the toner chamber; and a toner inlet (301) provided in the toner receiving unit. The development unit comprising the toner receiving unit is pivotably supported by the photosensitive unit, the development unit pivotable in a direction in which the developing roller approaches or is separated from the photosensitive drum.Type: GrantFiled: March 10, 2022Date of Patent: July 1, 2025Assignee: Hewlett-Packard Development Company, L.P.Inventors: Sanghoon Lee, Junhui Kim, Donguk Kim
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Publication number: 20250181023Abstract: A cartridge unit detachable from a main body of an image forming device includes: a rotation member; a driven coupler arranged at one end portion of the rotation member in an axial direction of the rotation member; and a coil spring arranged to be expandable and compressible in the axial direction, a first end portion of the coil spring being fixed onto the driven coupler, and the coil spring being wound in a first direction from the first end portion toward a second end portion. When a rotational force is transmitted to the second end portion of the coil spring in the first direction or in a second direction opposite to the first direction, a portion of the transmitted rotational force is converted into a force that decreases or increases a diameter of the coil spring, and the first end portion of the coil spring presses the driven coupler in a direction perpendicular to the axial direction.Type: ApplicationFiled: January 5, 2022Publication date: June 5, 2025Applicant: Hewlett-Packard Development Company, L.P.Inventors: Seungchan Park, Junhui Kim, Youngkwang Shin
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Patent number: 12271120Abstract: A toner refill cartridge includes a housing having an opening; a toner storage portion arranged inside the housing and to store a toner; a toner discharge portion at an end of the toner storage portion and to discharge the toner; a pump including a variable volume member capable of retracting and expanding, the pump to provide pressure, through a volume change of the variable volume member, for discharging the toner; a driving force input portion rotatable by a driving force received from outside; and a driving force transmission portion to receive a rotational force of the driving force input portion, convert the rotational force into driving force for changing a volume of the variable volume member, and transmit the driving force to the pump.Type: GrantFiled: January 5, 2022Date of Patent: April 8, 2025Assignee: Hewlett-Packard Development Company, L.P.Inventors: Shinhyup Kang, Yongnam Ahn, Jinhwa Hong, Junhui Kim
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Publication number: 20240427283Abstract: A process cartridge (2) includes: a photosensitive unit (100) including a photosensitive drum (21); and a development unit (200). The development unit includes: a developing roller (22); a toner chamber (203); a toner receiving unit (300) extending from the toner chamber to form a toner supply path (302) to the toner chamber; and a toner inlet (301) provided in the toner receiving unit. The development unit comprising the toner receiving unit is pivotably supported by the photosensitive unit, the development unit pivotable in a direction in which the developing roller approaches or is separated from the photosensitive drum.Type: ApplicationFiled: March 10, 2022Publication date: December 26, 2024Applicant: Hewlett-Packard Development Company, L.P.Inventors: Sanghoon LEE, Junhui KIM, Donguk KIM
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Publication number: 20240393735Abstract: An example image forming apparatus includes a main body including a cartridge chamber, a toner cartridge movable between a mounting position in which the toner cartridge is mounted in the cartridge chamber and a pop-up position in which the toner cartridge protrudes from the cartridge chamber, and a chamber door to open and close the cartridge chamber, wherein the chamber door is to switch to an open position to open the cartridge chamber in association with a pop-up operation of the toner cartridge.Type: ApplicationFiled: February 9, 2022Publication date: November 28, 2024Inventors: Jongin KIM, Junhui KIM, Jeonghyun LEE
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Publication number: 20240345507Abstract: A toner refill cartridge includes a housing having an opening; a toner storage portion arranged inside the housing and to store a toner; a toner discharge portion at an end of the toner storage portion and to discharge the toner; a pump including a variable volume member capable of retracting and expanding, the pump to provide pressure, through a volume change of the variable volume member, for discharging the toner; a driving force input portion rotatable by a driving force received from outside; and a driving force transmission portion to receive a rotational force of the driving force input portion, convert the rotational force into driving force for changing a volume of the variable volume member, and transmit the driving force to the pump.Type: ApplicationFiled: January 5, 2022Publication date: October 17, 2024Applicant: Hewlett-Packard Development Company, L.P.Inventors: Shinhyup Kang, Yongnam Ahn, Jinhwa Hong, Junhui Kim
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Publication number: 20240345518Abstract: An image forming apparatus includes: a body comprising a developing device, and a mounting unit from which a toner refill cartridge is detachable and which is connected to the developing device and delivers toner accommodated in the toner refill cartridge to the developing device. The body includes a housing having a communication hole so that the toner refill cartridge is mounted on the mounting unit from outside the image forming apparatus. The image forming apparatus includes a drive unit to provide a driving force to the toner refill cartridge so that toner is supplied from the toner refill cartridge to the developing device: a detecting unit to acquire a detected value corresponding to an amount of toner in the toner refill cartridge; and a controller to control an operation of the drive unit based on the detected value.Type: ApplicationFiled: January 12, 2022Publication date: October 17, 2024Applicant: Hewlett-Packard Development Company, L.P.Inventors: Seongho Jeong, Jongwon Han, Sungchul Ahn, Junhui Kim
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Patent number: 12111604Abstract: An example image forming apparatus includes a main body including an opening and an accommodation portion, a development cartridge detachable from the main body, a tray on which to mount the development cartridge, the tray being movable between a mounting position inserted into the main body through the opening, a withdrawal position extracted from the main body, and an accommodation position at which the development cartridge is accommodated in the accommodation portion, and an elastic support member to elastically support the development cartridge with respect to the tray while the tray moves between the mounting position, the withdrawal position, and the accommodation position.Type: GrantFiled: April 12, 2021Date of Patent: October 8, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Younghoon Kim, Wontaek Kim, Hohyun Hwang, Hwanghee Ryu, Saehoon Han, Seongho Park, Seunggweon Lee, Woongyong Choi, Sungjin Kim, Junhui Kim
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Patent number: 12085885Abstract: An example connection structure to couple with a toner cartridge includes a connector to be located at a driving position to contact a coupler provided in a toner cartridge, or a tilting position to be tilt with respect to the driving position, and a position maintaining portion to maintain the connector at the tilting position when the connector is separate from the coupler. The connector located at the tilting position is tilted toward a direction opposite to a direction in which the coupler moves when making contact with the connector.Type: GrantFiled: June 23, 2021Date of Patent: September 10, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jaeil Yu, Changwoo Lee, Junhui Kim
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Patent number: 12085886Abstract: An example connection structure includes a connector and a connector support body. The connector is to engage with a coupler of a toner cartridge at a driving position when the toner cartridge is located at an operable position. The connector support body is rotatable about a rotation axis. The connector is also to support the connector to allow the connector to be inclined toward one side or another side with respect to the rotation axis while moving along the rotation axis with respect to the driving position.Type: GrantFiled: March 23, 2021Date of Patent: September 10, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Changwoo Lee, Jaeil Yu, Junhui Kim
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Patent number: 12027172Abstract: Provided is an electronic device that includes a first processor for receiving an audio signal, performing first voice recognition on the audio signal, and transferring a driving signal to a second processor based on a result of the first voice recognition. The second processor performs second voice recognition based on a voice signal by the first voice recognition or the audio signal, in response to the driving signal.Type: GrantFiled: June 8, 2020Date of Patent: July 2, 2024Assignee: Samsung Electronics Co., LtdInventors: Taejin Lee, Subhojit Chakladar, Sanghoon Lee, Kyungtae Kim, Yuna Kim, Junhui Kim, Eunhye Shin, Jaegeun Lee, Hyunwoong Lim
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Publication number: 20230375974Abstract: An example image forming apparatus includes a main body including an opening and an accommodation portion, a development cartridge detachable from the main body, a tray on which to mount the development cartridge, the tray being movable between a mounting position inserted into the main body through the opening, a withdrawal position extracted from the main body, and an accommodation position at which the development cartridge is accommodated in the accommodation portion, and an elastic support member to elastically support the development cartridge with respect to the tray while the tray moves between the mounting position, the withdrawal position, and the accommodation position.Type: ApplicationFiled: April 12, 2021Publication date: November 23, 2023Inventors: Younghoon KIM, Wontaek KIM, Holyun HWANG, Hwanghee RYU, Saehoon HAN, Seongho PARK, Seunggweon LEE, Woongyong CHOI, Sungjin KIM, Junhui KIM
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Publication number: 20230375973Abstract: An example connection structure includes a connector and a connector support body. The connector is to engage with a coupler of a toner cartridge at a driving position when the toner cartridge is located at an operable position. The connector support body is rotatable about a rotation axis. The connector is also to support the connector to allow the connector to be inclined toward one side or another side with respect to the rotation axis while moving along the rotation axis with respect to the driving position.Type: ApplicationFiled: March 23, 2021Publication date: November 23, 2023Inventors: Changwoo LEE, Jaeil Yu, Junhui KIM