Patents by Inventor Il-kwon Kang
Il-kwon Kang 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: 9081362Abstract: An image forming apparatus has a structure which prevents contamination of charging units charging photoconductors. The image forming apparatus includes photoconductor units, charging units charging the photoconductor units, and a fan-motor unit changing the flow of air between the photoconductor units and the charging units to prevent substances of fine particles from flowing into the charging units.Type: GrantFiled: December 18, 2012Date of Patent: July 14, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hwan Jin Yoon, Il Kwon Kang, Mi Hyun Hwang
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Patent number: 9042765Abstract: An image forming apparatus includes a developing unit to form a visible image on a printing medium using developer, a fixing device to fix the developer to the printing medium, and a heat plate placed between the developing unit and the fixing device such that heat generated from the fixing device is absorbed by the heat plate, and transmission of heat to the developing unit is restricted.Type: GrantFiled: January 14, 2013Date of Patent: May 26, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Il Kwon Kang, Hwan Jin Yoon, Jeong Jae Seong
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Patent number: 8601330Abstract: A device for repair analysis includes a selection unit and an analysis unit. The selection unit is configured to select a part of the row addresses of a plurality of spare pivot fault cells and a part of the column addresses of the spare pivot fault cells in response to a control code. The analysis unit is configured to generate an analysis signal indicating whether row addresses of a plurality of non-spare pivot fault cells are included in selected row addresses and column addresses of the non-spare pivot fault cells are included in selected column addresses.Type: GrantFiled: December 30, 2010Date of Patent: December 3, 2013Assignee: Hynix Semiconductor Inc.Inventors: Woo-Sik Jeong, Kang-Chil Lee, Jeong-Ho Cho, Kyoung-Shub Lee, Il-Kwon Kang, Sungho Kang, Joo Hwan Lee
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Publication number: 20130183060Abstract: An image forming apparatus includes a developing unit to form a visible image on a printing medium using developer, a fixing device to fix the developer to the printing medium, and a heat plate placed between the developing unit and the fixing device such that heat generated from the fixing device is absorbed by the heat plate, and transmission of heat to the developing unit is restricted.Type: ApplicationFiled: January 14, 2013Publication date: July 18, 2013Applicant: SAMSUNG Electronics Co., Ltd.Inventors: Il Kwon KANG, Hwan Jin YOON, Jeong Jae SEONG
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Patent number: 8432758Abstract: A device for storing error information of a memory device includes a plurality of parent memories and a plurality of child memories. Each of the parent memories stores a row address and a column address of one defective cell. Each of the child memories stores a column address of a defective cell, having a row address identical to a row address stored in the corresponding parent memory, or a row address of a defective cell, having a column address identical to a column address stored in the corresponding parent memory. Herein, each of the parent memories stores information about information about whether a row repair must be performed to repair a defective cell stored in the parent memory and information about whether a column repair must be performed to repair a defective cell stored in the parent memory.Type: GrantFiled: December 30, 2010Date of Patent: April 30, 2013Assignee: Hynix Semiconductor Inc.Inventors: Woo-Sik Jeong, Kang-Chil Lee, Jeong-Ho Cho, Kyoung-Shub Lee, Il-Kwon Kang, Sungho Kang, Joo Hwan Lee
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Publication number: 20120131396Abstract: A device for repair analysis includes a selection unit and an analysis unit. The selection unit is configured to select a part of the row addresses of a plurality of spare pivot fault cells and a part of the column addresses of the spare pivot fault cells in response to a control code. The analysis unit is configured to generate an analysis signal indicating whether row addresses of a plurality of non-spare pivot fault cells are included in selected row addresses and column addresses of the non-spare pivot fault cells are included in selected column addresses.Type: ApplicationFiled: December 30, 2010Publication date: May 24, 2012Inventors: Woo-Sik JEONG, Kang-Chil LEE, Jeong-Ho CHO, Kyoung-Shub LEE, Il-Kwon KANG, Sungho KANG, Joo Hwan LEE
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Publication number: 20120127813Abstract: A device for storing error information of a memory device includes a plurality of parent memories and a plurality of child memories. Each of the parent memories stores a row address and a column address of one defective cell. Each of the child memories stores a column address of a defective cell, having a row address identical to a row address stored in the corresponding parent memory, or a row address of a defective cell, having a column address identical to a column address stored in the corresponding parent memory. Herein, each of the parent memories stores information about information about whether a row repair must be performed to repair a defective cell stored in the parent memory and information about whether a column repair must be performed to repair a defective cell stored in the parent memory.Type: ApplicationFiled: December 30, 2010Publication date: May 24, 2012Applicant: Hynix Semiconductor Inc.Inventors: Woo-Sik JEONG, Kang-Chil Lee, Jeong-Ho Cho, Kyoung-Shub Lee, Il-Kwon Kang, Sungho Kang, Joo Hwan Lee
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Patent number: 8070153Abstract: An image forming apparatus and a printing medium feeding unit thereof are disclosed. The image forming apparatus includes a main body, a cassette removably mounted in the main body to load a printing medium therein, and a sensing unit provided in the main body to sense whether the cassette is mounted in the main body and whether the printing medium is in the cassette. The sensing unit includes a first actuator mounted in the main body to sense whether the printing medium is in the cassette, a second actuator mounted in the main body to sense whether the cassette is mounted in the main body, and a sensor having a sensing part to sense operation of the first actuator and the second actuator. Accordingly, the image forming apparatus can sense whether the cassette is properly mounted in the main body and whether the printing medium is in the cassette, with a simple constitution while minimizing the number of sensors.Type: GrantFiled: June 19, 2008Date of Patent: December 6, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Il Kwon Kang
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Patent number: 7983599Abstract: An automatic belt tension apparatus of an image forming device having: a tension actuating part connected to the driving unit and operating by a driving force of a driving unit; a tension applying part to selectively apply a predetermined tension to a belt, installed with respect to the belt; and a tension releasing part to operate the tension applying part to not apply the predetermined tension to the belt, installed with respect to the tension applying part.Type: GrantFiled: January 26, 2006Date of Patent: July 19, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Ki-Ju Pak, Hyo-jin Lee, Il-kwon Kang
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Publication number: 20110142504Abstract: Disclosed herein is an image forming apparatus and method thereof. The image forming apparatus includes a rotating member provided close to a distal end of a guide surface used to guide a printing medium to be introduced into a fusing unit. The rotating member comes into rolling contact with the printing medium to prevent jamming of the printing medium due to matter adhered to the distal end of the guide surface.Type: ApplicationFiled: November 22, 2010Publication date: June 16, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Il Kwon Kang, Sang Cheol Moon
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Patent number: 7783230Abstract: A transfer unit and an image forming apparatus having the same. The transfer unit includes a transfer unit body to accommodate a printing medium conveyor, which makes a printing medium receive an image while moving the printing medium, a body handle used to mount the transfer unit body in an image forming apparatus and to separate the transfer unit body from the image forming apparatus, and a locking and releasing unit to lock the transfer unit body to the image forming apparatus and to release a locking connection therebetween. The locking and releasing unit is disposed to carry out a releasing operation by grasping the body handle.Type: GrantFiled: May 17, 2007Date of Patent: August 24, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jeong-yong Ju, Il-kwon Kang, Gyeong-sun Park
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Patent number: 7712734Abstract: A multi-purpose feeder (MPF) for office automation (OA) machinery includes an MPF tray installed rotatably on a main body panel so that it can be opened and closed. An auxiliary stocker is rotatably installed on the tray by a hinge. An auxiliary stocker pivoting unit automatically pivots the auxiliary stocker as the MPF tray is opened and closed. Since the auxiliary stocker is automatically opened and folded when the MPF tray is opened and closed with respect to the main body, the MPF has improved user's convenience.Type: GrantFiled: January 4, 2006Date of Patent: May 11, 2010Assignee: Samsung Electronics Co., Ltd.Inventor: Il-kwon Kang
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Patent number: 7693450Abstract: A developing unit and an image forming apparatus having the developing unit are disclosed. The developing unit includes a developing unit main body having a supporting groove that contacts and is supported by the supporting protrusion of a frame when the developing unit is mounted on the mounting frame. A photoconductor is rotatably disposed in the developing unit main body and has ends that form a supporting shaft and are supported by a supporting unit. A driven unit is disposed in the developing unit main body and geared with the driving unit when the developing unit main body is mounted on the mounting frame. One of side surfaces of the developing unit main body includes an interference unit that interferes with the mounting frame and push the developing unit main body into engagement with the driving gear when the developing main body is mounted on the mounting frame.Type: GrantFiled: February 22, 2006Date of Patent: April 6, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Soo-yong Kim, Il-kwon Kang, Byeong-hwa Ahn
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Patent number: 7672614Abstract: A driving apparatus includes a driving gear connected to a driving motor, a driven gear engaged with the driving gear, and a driving force coupling part coupling the driving gear and the driven gear to not move with respect to each other. The driving force coupling part includes an axle distance maintaining member to maintain a substantially constant distance between axes of the driving gear and the driven gear. The driving apparatus couples the driving gear and the driven gear to not move with respect to each other when a driving force is transmitted from the driving gear to the driven gear, thereby maintaining a substantially uniform distance between axes of the driving gear and the driven gear. Accordingly, a driven gear shaft is substantially prevented from changing position and deformation of a process cartridge is substantially prevented due to a driving torque of the driving gear and a load torque of the driven gear.Type: GrantFiled: March 10, 2006Date of Patent: March 2, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Il-kwon Kang, Byeong-hwa Ahn
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Patent number: 7657207Abstract: An image forming apparatus includes a developing unit which develops toner to form an image, a transfer unit which transfers the image onto a printing medium, and a fusing unit to fuse the image transferred onto the printing medium, wherein the transfer unit includes a belt, a plurality of rollers which rotatably supports the belt, and a belt tension applying unit which moves a first roller of the plurality of rollers between a belt tension release position at which a tension of the belt releases and a belt tension applying position at which the tension of the belt applies by the interlocking motion between the belt tension applying unit and a second roller of the plurality of rollers.Type: GrantFiled: August 1, 2007Date of Patent: February 2, 2010Assignee: Samsung Electronics Co., Ltd.Inventor: Il-kwon Kang
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Publication number: 20090129790Abstract: An image forming apparatus and a printing medium feeding unit thereof are disclosed. The image forming apparatus includes a main body, a cassette removably mounted in the main body to load a printing medium therein, and a sensing unit provided in the main body to sense whether the cassette is mounted in the main body and whether the printing medium is in the cassette. The sensing unit includes a first actuator mounted in the main body to sense whether the printing medium is in the cassette, a second actuator mounted in the main body to sense whether the cassette is mounted in the main body, and a sensor having a sensing part to sense operation of the first actuator and the second actuator. Accordingly, the image forming apparatus can sense whether the cassette is properly mounted in the main body and whether the printing medium is in the cassette, with a simple constitution while minimizing the number of sensors.Type: ApplicationFiled: June 19, 2008Publication date: May 21, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventor: Il Kwon KANG
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Publication number: 20080138111Abstract: A transfer unit and an image forming apparatus having the same. The transfer unit includes a transfer unit body to accommodate a printing medium conveyor, which makes a printing medium receive an image while moving the printing medium, a body handle used to mount the transfer unit body in an image forming apparatus and to separate the transfer unit body from the image forming apparatus, and a locking and releasing unit to lock the transfer unit body to the image forming apparatus and to release a locking connection therebetween. The locking and releasing unit is disposed to carry out a releasing operation by grasping the body handle.Type: ApplicationFiled: May 17, 2007Publication date: June 12, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Jeong-yong Ju, Il-kwon Kang, Gyeong-sun Park
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Publication number: 20080124120Abstract: An image forming apparatus includes a developing unit which develops toner to form an image, a transfer unit which transfers the image onto a printing medium, and a fusing unit to fuse the image transferred onto the printing medium, wherein the transfer unit includes a belt, a plurality of rollers which rotatably supports the belt, and a belt tension applying unit which moves a first roller of the plurality of rollers between a belt tension release position at which a tension of the belt releases and a belt tension applying position at which the tension of the belt applies by the interlocking motion between the belt tension applying unit and a second roller of the plurality of rollers.Type: ApplicationFiled: August 1, 2007Publication date: May 29, 2008Applicant: Samsung Electronics Co., Ltd.Inventor: Il-kwon KANG
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Publication number: 20070077091Abstract: A driving apparatus includes a driving gear connected to a driving motor, a driven gear engaged with the driving gear, and a driving force coupling part coupling the driving gear and the driven gear to not move with respect to each other. The driving force coupling part includes an axle distance maintaining member to maintain a substantially constant distance between axes of the driving gear and the driven gear. The driving apparatus couples the driving gear and the driven gear to not move with respect to each other when a driving force is transmitted from the driving gear to the driven gear, thereby maintaining a substantially uniform distance between axes of the driving gear and the driven gear. Accordingly, a driven gear shaft is substantially prevented from changing position and deformation of a process cartridge is substantially prevented due to a driving torque of the driving gear and a load torque of the driven gear.Type: ApplicationFiled: March 10, 2006Publication date: April 5, 2007Inventors: Il-kwon Kang, Byeong-hwa Ahn
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Publication number: 20070065176Abstract: A developing unit and an image forming apparatus having the developing unit are disclosed. The developing unit includes a developing unit main body having a supporting groove that contacts and is supported by the supporting protrusion of a frame when the developing unit is mounted on the mounting frame. A photoconductor is rotatably disposed in the developing unit main body and has ends that form a supporting shaft and are supported by a supporting unit. A driven unit is disposed in the developing unit main body and geared with the driving unit when the developing unit main body is mounted on the mounting frame. One of side surfaces of the developing unit main body includes an interference unit that interferes with the mounting frame and push the developing unit main body into engagement with the driving gear when the developing main body is mounted on the mounting frame.Type: ApplicationFiled: February 22, 2006Publication date: March 22, 2007Inventors: Soo-yong Kim, Il-kwon Kang, Byeong-hwa Ahn