Patents by Inventor Jin Sam PARK

Jin Sam PARK 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: 20210240127
    Abstract: A printer includes a main body including a printing unit for printing an image, a developer cartridge for accommodating a developer to be supplied to the printing unit and removable from the main body, a releasing member provided in the main body and pushing the developer cartridge in a removal direction to move the developer cartridge from a mounting position where the developer cartridge is locked to the main body to a removal position where the developer cartridge is unlocked, and a handle provided on the developer cartridge. The handle moves in conjunction with the movement of the developer cartridge from the mounting position to the removal position of the developer cartridge such that the handle is switched from a first position adjacent to a side of the developer cartridge to a second position protruding from the side of the developer cartridge, so that the handle can be gripped.
    Type: Application
    Filed: October 15, 2018
    Publication date: August 5, 2021
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jin Sam PARK, Jin Hong KIM, Seong Woong YANG, Min Woo KANG, Yong Hun KIM, Jeong Sup SIM
  • Publication number: 20210116843
    Abstract: A toner container is detachably attachable to a developing device. The developing device includes an inlet to be poured with a toner, an inlet shutter to move between a closed position, at which the inlet is closed, and an open position, at which the inlet is open, a biasing mechanism to bias the inlet shutter toward the closed position, an engaged structure provided in the inlet shutter, an engaging structure to engage with the engaged structure and to retain the inlet shutter at the open position against a biasing force of the biasing mechanism, and an engagement releasing structure provided in the inlet shutter and to release an engaging state between the engaged structure and the engaging structure. The toner container includes a contacting surface to contact with the engagement releasing structure and to make the engagement releasing structure release the engaging state.
    Type: Application
    Filed: December 29, 2020
    Publication date: April 22, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Tomofumi YOSHIDA, Kohta SAKAYA, Shinichi ARASAWA, Jin Sam PARK, Goo Chul JUNG, Yasunobu OGATA
  • Patent number: 10915040
    Abstract: A toner container is detachably attachable to a developing device. The developing device includes an inlet to be poured with a toner, an inlet shutter to move between a closed position, at which the inlet is closed, and an open position, at which the inlet is open, a biasing mechanism to bias the inlet shutter toward the closed position, an engaged structure provided in the inlet shutter, an engaging structure to engage with the engaged structure and to retain the inlet shutter at the open position against a biasing force of the biasing mechanism, and an engagement releasing structure provided in the inlet shutter and to release an engaging state between the engaged structure and the engaging structure. The toner container includes a contacting surface to contact with the engagement releasing structure and to make the engagement releasing structure release the engaging state.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: February 9, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomofumi Yoshida, Kohta Sakaya, Shinichi Arasawa, Jin Sam Park, Goo Chul Jung, Yasunobu Ogata
  • Publication number: 20200133164
    Abstract: A toner container is detachably attachable to a developing device. The developing device includes an inlet to be poured with a toner, an inlet shutter to move between a closed position, at which the inlet is closed, and an open position, at which the inlet is open, a biasing mechanism to bias the inlet shutter toward the closed position, an engaged structure provided in the inlet shutter, an engaging structure to engage with the engaged structure and to retain the inlet shutter at the open position against a biasing force of the biasing mechanism, and an engagement releasing structure provided in the inlet shutter and to release an engaging state between the engaged structure and the engaging structure. The toner container includes a contacting surface to contact with the engagement releasing structure and to make the engagement releasing structure release the engaging state.
    Type: Application
    Filed: December 26, 2019
    Publication date: April 30, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Tomofumi YOSHIDA, Kohta SAKAYA, Shinichi ARASAWA, Jin Sam PARK, Goo Chul JUNG, Yasunobu OGATA
  • Patent number: 10564572
    Abstract: A toner container is detachably attachable to a developing device. The developing device includes an inlet to be poured with a toner, an inlet shutter to move between a closed position, at which the inlet is closed, and an open position, at which the inlet is open, a biasing mechanism to bias the inlet shutter toward the closed position, an engaged structure provided in the inlet shutter, an engaging structure to engage with the engaged structure and to retain the inlet shutter at the open position against a biasing force of the biasing mechanism, and an engagement releasing structure provided in the inlet shutter and to release an engaging state between the engaged structure and the engaging structure. The toner container includes a contacting surface to contact with the engagement releasing structure and to make the engagement releasing structure release the engaging state.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: February 18, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomofumi Yoshida, Kohta Sakaya, Shinichi Arasawa, Jin Sam Park, Goo Chul Jung, Yasunobu Ogata
  • Publication number: 20190258191
    Abstract: A toner container is detachably attachable to a developing device. The developing device includes an inlet to be poured with a toner, an inlet shutter to move between a closed position, at which the inlet is closed, and an open position, at which the inlet is open, a biasing mechanism to bias the inlet shutter toward the closed position, an engaged structure provided in the inlet shutter, an engaging structure to engage with the engaged structure and to retain the inlet shutter at the open position against a biasing force of the biasing mechanism, and an engagement releasing structure provided in the inlet shutter and to release an engaging state between the engaged structure and the engaging structure. The toner container includes a contacting surface to contact with the engagement releasing structure and to make the engagement releasing structure release the engaging state.
    Type: Application
    Filed: April 30, 2019
    Publication date: August 22, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Tomofumi YOSHIDA, Kohta SAKAYA, Shinichi ARASAWA, Jin Sam PARK, Goo Chul JUNG, Yasunobu OGATA
  • Patent number: 10365584
    Abstract: A toner container is detachably attachable to a developing device. The developing device includes an inlet to be poured with a toner, an inlet shutter to move between a closed position, at which the inlet is closed, and an open position, at which the inlet is open, a biasing mechanism to bias the inlet shutter toward the closed position, an engaged structure provided in the inlet shutter, an engaging structure to engage with the engaged structure and to retain the inlet shutter at the open position against a biasing force of the biasing mechanism, and an engagement releasing structure provided in the inlet shutter and to release an engaging state between the engaged structure and the engaging structure. The toner container includes a contacting surface to contact with the engagement releasing structure and to make the engagement releasing structure release the engaging state.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: July 30, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomofumi Yoshida, Kohta Sakaya, Shinichi Arasawa, Jin Sam Park, Goo Chul Jung, Yasunobu Ogata
  • Patent number: 10317817
    Abstract: A toner container is detachably attachable to a developing device. The developing device includes an inlet to be poured with a toner, an inlet shutter to move between a closed position, at which the inlet is closed, and an open position, at which the inlet is open, a biasing mechanism to bias the inlet shutter toward the closed position, an engaged structure provided in the inlet shutter, an engaging structure to engage with the engaged structure and to retain the inlet shutter at the open position against a biasing force of the biasing mechanism, and an engagement releasing structure provided in the inlet shutter and to release an engaging state between the engaged structure and the engaging structure. The toner container includes a contacting surface to contact with the engagement releasing structure and to make the engagement releasing structure release the engaging state.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: June 11, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomofumi Yoshida, Kohta Sakaya, Shinichi Arasawa, Jin Sam Park, Goo Chul Jung, Yasunobu Ogata
  • Publication number: 20180253032
    Abstract: A toner container is detachably attachable to a developing device. The developing device includes an inlet to be poured with a toner, an inlet shutter to move between a closed position, at which the inlet is closed, and an open position, at which the inlet is open, a biasing mechanism to bias the inlet shutter toward the closed position, an engaged structure provided in the inlet shutter, an engaging structure to engage with the engaged structure and to retain the inlet shutter at the open position against a biasing force of the biasing mechanism, and an engagement releasing structure provided in the inlet shutter and to release an engaging state between the engaged structure and the engaging structure. The toner container includes a contacting surface to contact with the engagement releasing structure and to make the engagement releasing structure release the engaging state.
    Type: Application
    Filed: May 4, 2018
    Publication date: September 6, 2018
    Inventors: Tomofumi YOSHIDA, Kohta SAKAYA, Shinichi ARASAWA, Jin Sam PARK, Goo Chul JUNG, Yasunobu OGATA
  • Patent number: 10025227
    Abstract: A toner container is detachably attachable to a developing device. The developing device includes an inlet to be poured with a toner, an inlet shutter to move between a closed position, at which the inlet is closed, and an open position, at which the inlet is open, a biasing mechanism to bias the inlet shutter toward the closed position, an engaged structure provided in the inlet shutter, an engaging structure to engage with the engaged structure and to retain the inlet shutter at the open position against a biasing force of the biasing mechanism, and an engagement releasing structure provided in the inlet shutter and to release an engaging state between the engaged structure and the engaging structure. The toner container includes a contacting surface to contact with the engagement releasing structure and to make the engagement releasing structure release the engaging state.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: July 17, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tomofumi Yoshida, Kohta Sakaya, Shinichi Arasawa, Jin Sam Park, Goo Chul Jung, Yasunobu Ogata
  • Publication number: 20170219957
    Abstract: A toner container is detachably attachable to a developing device. The developing device includes an inlet to be poured with a toner, an inlet shutter to move between a closed position, at which the inlet is closed, and an open position, at which the inlet is open, a biasing mechanism to bias the inlet shutter toward the closed position, an engaged structure provided in the inlet shutter, an engaging structure to engage with the engaged structure and to retain the inlet shutter at the open position against a biasing force of the biasing mechanism, and an engagement releasing structure provided in the inlet shutter and to release an engaging state between the engaged structure and the engaging structure. The toner container includes a contacting surface to contact with the engagement releasing structure and to make the engagement releasing structure release the engaging state.
    Type: Application
    Filed: April 18, 2017
    Publication date: August 3, 2017
    Inventors: Tomofumi YOSHIDA, Kohta SAKAYA, Shinichi ARASAWA, Jin Sam PARK, Goo Chul JUNG, Yasunobu OGATA
  • Patent number: 9690231
    Abstract: A toner container includes a container body that is used to house a toner and that is detachably attachable to a mounting portion in a developing device; and an operating member that is used to open and close a shutter. The shutter as well as the operating member includes an engaging portion that can engage with a linking member which is disposed in the mounting portion and which can perform a reciprocating linear movement. In the state in which the container body is not mounted in the mounting portion, the shutter and the operating member are in a non-linked state with each other. In contrast, in the state in which the container body is mounted in the mounting portion, the shutter and the operating member become able to be linked to each other via the linking member.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: June 27, 2017
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Tomofumi Yoshida, Kohta Sakaya, Shinichi Arasawa, Jin Sam Park, Goo Chul Jung, Yasunobu Ogata
  • Patent number: 9575459
    Abstract: Provided is a toner recycling device for an image forming apparatus, including a waste toner conveying screw which conveys waste toner collected out of a surface of a photosensitive drum to one side; a toner recycling means which is connected with the waste toner conveying screw to be rotated by rotation of waste toner conveying screw, filters a foreign substance out of the waste toner conveyed by the waste toner conveying screw, supplies the recycled toner from which the foreign substance is removed toward a developing unit, and discharges the foreign substance filtered out of the waste toner to an outside of a drum unit; and a collecting case which is integrally formed with the drum unit at one side of the drum unit to collect the foreign substance filtered by the toner recycling means, wherein the foreign substance like paper dust contained in the waste toner is filtered, and then the recycled toner is supplied again toward the developing unit, thus it is possible to prevent the quality of a printed image
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: February 21, 2017
    Assignee: SINDOH CO., LTD.
    Inventors: Byung Bag Lee, Woo Sung Jung, Jin Sam Park
  • Publication number: 20160334752
    Abstract: Provided is a toner recycling device for an image forming apparatus, including a waste toner conveying screw which conveys waste toner collected out of a surface of a photosensitive drum to one side; a toner recycling means which is connected with the waste toner conveying screw to be rotated by rotation of waste toner conveying screw, filters a foreign substance out of the waste toner conveyed by the waste toner conveying screw, supplies the recycled toner from which the foreign substance is removed toward a developing unit, and discharges the foreign substance filtered out of the waste toner to an outside of a drum unit; and a collecting case which is integrally formed with the drum unit at one side of the drum unit to collect the foreign substance filtered by the toner recycling means, wherein the foreign substance like paper dust contained in the waste toner is filtered, and then the recycled toner is supplied again toward the developing unit, thus it is possible to prevent the quality of a printed image
    Type: Application
    Filed: October 30, 2015
    Publication date: November 17, 2016
    Inventors: Byung Bag LEE, Woo Sung JUNG, Jin Sam PARK
  • Patent number: 9405228
    Abstract: Disclosed is a developer discharging device for an image forming apparatus, which is installed in a developing unit configured to transfer and discharge a developer collected from a drum unit or a newly introduced developer, such that the developer is discharged to a developer collecting unit, including a first discharging part configured to extend from an end of a transferring screw installed in the developing unit, and a second discharging part disposed above the first discharging part in parallel with the first discharging part, wherein the developer discharged from the second discharging part falls into the developer collecting unit. Therefore, it is possible to prevent the developer from being sharply discharged, and thus to constantly maintain an amount of the developer.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: August 2, 2016
    Assignee: SINDOH CO., LTD.
    Inventors: Byoung Bag Lee, Goo Chul Jung, Jin Sam Park
  • Patent number: 9383716
    Abstract: A cartridge assembly for an image forming apparatus, including a drum unit provided with a waste toner conveyor which conveys waste toner collected from a surface of a photosensitive drum to one side; a developing unit connected with the drum unit, configured to receive the waste toner collected from the drum unit, and having a developer discharger to discharge a developer therein to an outside; and a developer collecting unit integrally formed with the drum unit at one side of the drum unit, and configured to collect the developer discharged by the developer discharger of the developing unit, wherein the drum unit includes a toner injector which connects the waste toner conveyor, a new toner supply unit and the developing unit so that the waste toner conveyed by the waste toner conveyor and new toner supplied from the new toner supply unit are injected together into the developing unit.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: July 5, 2016
    Assignee: SINDOH CO., LTD.
    Inventors: Byoung Bag Lee, Goo Chul Jung, Jin Sam Park, Woo Sung Jung
  • Publication number: 20160147179
    Abstract: Disclosed is a developer discharging device for an image forming apparatus, which is installed in a developing unit configured to transfer and discharge a developer collected from a drum unit or a newly introduced developer, such that the developer is discharged to a developer collecting unit, including a first discharging part configured to extend from an end of a transferring screw installed in the developing unit, and a second discharging part disposed above the first discharging part in parallel with the first discharging part, wherein the developer discharged from the second discharging part falls into the developer collecting unit. Therefore, it is possible to prevent the developer from being sharply discharged, and thus to constantly maintain an amount of the developer.
    Type: Application
    Filed: May 28, 2015
    Publication date: May 26, 2016
    Inventors: Byoung Bag LEE, Goo Chul JUNG, Jin Sam PARK
  • Publication number: 20160109827
    Abstract: A toner container includes a container body that is used to house a toner and that is detachably attachable to a mounting portion in a developing device; and an operating member that is used to open and close a shutter. The shutter as well as the operating member includes an engaging portion that can engage with a linking member which is disposed in the mounting portion and which can perform a reciprocating linear movement. In the state in which the container body is not mounted in the mounting portion, the shutter and the operating member are in a non-linked state with each other. In contrast, in the state in which the container body is mounted in the mounting portion, the shutter and the operating member become able to be linked to each other via the linking member.
    Type: Application
    Filed: May 30, 2014
    Publication date: April 21, 2016
    Inventors: Tomofumi YOSHIDA, Kohta SAKAYA, Shinichi ARASAWA, Jin Sam PARK, Goo Chul JUNG, Yasunobu OGATA
  • Publication number: 20160062304
    Abstract: Provided is a cartridge assembly for an image forming apparatus, including a drum unit provided with a waste toner conveying means which conveys waste toner collected from a surface of a photosensitive drum to one side; a developing unit connected with the drum unit, configured to receive the waste toner collected from the drum unit, and having a developer discharging means to discharge a developer therein to an outside; and a developer collecting unit integrally formed with the drum unit at one side of the drum unit, and configured to collect the developer discharged by the developer discharging means of the developing unit, wherein the drum unit includes a toner injecting means which connects the waste toner conveying means, a new toner supply unit and the developing unit so that the waste toner conveyed by the waste toner conveying means and new toner supplied from the new toner supply unit are injected together into the developing unit.
    Type: Application
    Filed: August 25, 2015
    Publication date: March 3, 2016
    Inventors: Byoung Bag LEE, Goo Chul JUNG, Jin Sam PARK, Woo Sung JUNG