Patents by Inventor Chang Ho

Chang Ho 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).

  • Patent number: 7616744
    Abstract: The present invention relates to improvements of member management and business efficiency so that order information received through a customer's wired or wireless telephone can be used to write an order slip and then output through a print output unit while being displayed on a LCD screen window.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: November 10, 2009
    Assignee: Aimenet Co., Ltd.
    Inventor: Chang Ho Son
  • Patent number: 7616518
    Abstract: A multi-port memory device includes a plurality of ports located at a center region of the multi-port memory device, each for performing a data communication with a corresponding external device; a plurality of banks arranged at upper and lower regions of the multi-port memory device in a row direction on the basis of the plurality of ports; and first and second global I/O data buses arranged in the row direction between the banks and the ports, each for independently performing a data transmission between the banks and the ports.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: November 10, 2009
    Assignee: Hynix Semiconductor Inc.
    Inventors: Jae-Hyuk Im, Chang-Ho Do
  • Patent number: 7615291
    Abstract: There is provided a coating material having heat and abrasion resistance and low friction characteristics, as well as a method of utilizing the same. The coating material comprises 20 to 40 wt % Cr2O3, 40 to 60 wt % binder, 10 to 20 wt % WS2, and 10 to 20 wt % Ag. The binder comprises 60 to 80 wt % Ni and 20 to 40 wt % Cr. The binder may further comprise above 0 to 10 wt % Al. The coating method comprises the steps of pulverizing the coating material, pulverizing a binder, applying the pulverized binder to a surface of a workpiece to form a first layer, applying the pulverized coating material to the first layer to form a second layer, and grinding and polishing the surface of the second layer.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: November 10, 2009
    Assignee: Korea Institute of Science and Technology
    Inventors: Yong Bok Lee, Chang Ho Kim, Hosung Kong, Hung Gu Han, Jeon Kook Lee, Jun Hyeon Jo, Byoung Su Lee
  • Publication number: 20090273992
    Abstract: A semiconductor device includes a pad configured to receive a data strobe signal, and a path selector configured to output the data strobe signal through a corresponding input path during a normal operation, and to output the data strobe signal through a plurality of input paths in response to a path selection signal during a test operation.
    Type: Application
    Filed: June 30, 2008
    Publication date: November 5, 2009
    Applicant: HYNIX SEMICONDUCTOR, INC.
    Inventors: Ki-Ho KIM, Chang-Ho Do
  • Publication number: 20090273373
    Abstract: A semiconductor device includes a reference voltage generating unit configured to produce a reference voltage by dividing a voltage difference between a positive clock terminal and a negative clock terminal, and a logic determination unit configured to determine a logic level of an external signal based on the reference voltage.
    Type: Application
    Filed: June 30, 2008
    Publication date: November 5, 2009
    Applicant: HYNIX SEMICONDUCTOR, INC.
    Inventor: Chang-Ho DO
  • Publication number: 20090266382
    Abstract: A vacuum cleaner and a method of controlling the vacuum cleaner are provided. The vacuum cleaner may include a main body, a dust collection device mounted in the main body, at least one compression member that compresses the dust in the dust collection device, and a driver that drives the compressing member.
    Type: Application
    Filed: March 20, 2009
    Publication date: October 29, 2009
    Inventors: Man Tae HWANG, Hae Seock YANG, Hoi Kil JEONG, Myung Sig YOO, Jae Kyum KIM, Moo Hyun KO, Kie Tak HYUN, Jong Su CHOO, Young Bok SON, Kyeong Seon JEONG, Min PARK, Sung Hwa LEE, Il Joong KIM, Jin Hyouk SHIN, Gun Ho HA, Jin Wook SEO, Chang Ho YUN, Jin Young KIM, Chang Hoon LEE, Yun Hee PARK, Hyuk-Min KWON, Young-Gun MIN
  • Publication number: 20090267684
    Abstract: An internal voltage generating circuit of a semiconductor device includes a first voltage driver configured to pull up an internal voltage terminal during a period where a level of the internal voltage terminal is lower than a target level, and a second voltage driver configured to pull up the internal voltage terminal during a predefined time in each period corresponding to a frequency of an external clock.
    Type: Application
    Filed: June 30, 2008
    Publication date: October 29, 2009
    Applicant: HYNIX SEMICONDUCTOR, INC.
    Inventor: Chang-Ho DO
  • Publication number: 20090262296
    Abstract: A liquid crystal display device includes a plurality of liquid crystal cells on a substrate, a plurality of drive lines extending along first and second directions and connected to the plurality of liquid crystal cells, a plurality of pad lines extending from each of the plurality of drive lines at a first angle from one of the first and second directions, and a plurality of pads extending at the first angle and connected to each of the plurality of pad lines for supplying external drive signals.
    Type: Application
    Filed: June 17, 2009
    Publication date: October 22, 2009
    Inventors: Chang Ho OH, Su Woong LEE
  • Patent number: 7605147
    Abstract: The present invention relates to an acyclic nucleoside phosphonate derivative represented by the following formula (1): in which represents single bond or double bond, R1, R2, R3, R7 and R8 are defined herein, Y represents —O—, —S—, —CH(Z)-, ?C(Z)-, —N(Z)-, ?N—, or —SiH(Z)-, wherein Z represents hydrogen, hydroxy or halogen, or represents C1-C7-alkyl, C1-C5-alkoxy, allyl, hydroxy-C1-C7-alkyl, C1-C7-aminoalkyl or phenyl, Q represents a group having the following formula: wherein X1, and X2 independently of one another represent hydrogen, amino, hydroxy or halogen, or represent C1-C7-alkyl, C1-C5-alkoxy, allyl, hydroxy-C1-C7-alkyl, phenyl or phenoxy each of which is optionally substituted by nitro or C1-C5-alkoxy, or represent C6-C10-arylthio which is optionally substituted by nitro, amino, C1-C6-alkyl or C1-C4-alkoxy, or represent C6-C12-arylamino, C1-C7-alkylamino, di(C1-C7-alkyl)amino, C3-C6-cycloalkylamino or a structure of wherein n denotes an integer of 1 or 2 and Y1 represents O, CH2 or N—
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: October 20, 2009
    Assignee: LG Life Sciences Ltd.
    Inventors: Dong-Gyu Cho, Jae-Hong Lim, Jae-Taeg Hwang, Woo-Young Cho, Hyun-Sook Jang, Chang-Ho Lee, Tae-Saeng Choi, Chung-Mi Kim, Yong-Zu Kim, Tae-Kyun Kim, Seung-Joo Cho, Gyoung-Won Kim, Jong-Ryoo Choi, Jeong-Min Kim, Kee-Yoon Roh
  • Patent number: 7604557
    Abstract: A vehicle transmission includes a crankshaft box unit, a clutch unit, and a transmission box unit. The crankshaft box unit includes a crankshaft box, a crankshaft extending through the clutch unit and into the transmission box unit, a driven shaft disposed in the transmission box unit and having an end sleeved on a connecting end of the crankshaft, and a bearing disposed between the crankshaft and the driven shaft. The clutch unit includes a seal cover disposed in proximity to the crankshaft box, and a wet clutch disposed between the seal cover and the crankshaft box. The crankshaft extends through the seal cover. The connecting end of the crankshaft is disposed in a transmission box of the transmission box unit.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: October 20, 2009
    Assignee: Kwang Yang Motor Co., Ltd.
    Inventor: Chao-Chang Ho
  • Publication number: 20090255083
    Abstract: A vacuum cleaner is provided. The vacuum cleaner may include a dust collection container that stores dust, a compression member that is provided in the dust collection container and which is capable of rotating in first and second directions, and a driver that rotates the compression member. The compression member rotates in a first space corresponding to a first angle range and at least a portion of the dust is stored in a second space corresponding to a second angle range.
    Type: Application
    Filed: March 20, 2009
    Publication date: October 15, 2009
    Inventors: Man Tae HWANG, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim, Moo Hyun Ko, Kie Tak Hyun, Jong Su Choo, Young Bok Son, Kyeong Seon Jeong, Min Park, Sung Hwa Lee, Il Joong Kim, Jin Hyouk Shin, Gun Ho Ha, Jin Wook Seo, Chang Ho Yun, Jin Young Kim, Chang Hoon Lee, Yun Hee Park, Hyuk-Min Kwon
  • Patent number: 7602872
    Abstract: In multicarrier communication system using N subcarriers, in which a transmitter communicates with K receivers, the transmitter determines a channel quality information (CQI) feedback quantity indicative of the number of subcarriers for which CQIs will be fed back among the N subcarriers, for the K receivers, and transmits the CQI feedback quantity to the K receivers. Thereafter, upon receiving CQIs corresponding to the determined CQI feedback quantity, being fed back from the K receivers, the transmitter allocates subcarriers for which there are CQIs being fed back from at least one receiver among the K receivers among the N subcarriers, to any one receiver among the receivers that have fed back CQIs according to a first scheme, thereby guaranteeing the maximum throughput and the maximum fairness.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: October 13, 2009
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Chang-Ho Suh, Seung-Hoon Park, Seok-Hyun Yoon, Sung-Kwon Hong, Young-Kwon Cho
  • Patent number: 7601188
    Abstract: A vacuum cleaner includes at least one cyclone dust separation unit. A cover is formed over the cyclone dust separation unit to attenuate noise generated by the cyclone unit. Dimples or recesses may be formed on the interior of the cover to further attenuate noise. In addition, a noise attenuating material may be inserted between the cyclone dust separation unit and the cover.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: October 13, 2009
    Assignee: LG Electronics Inc.
    Inventors: Man Tae Hwang, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim, Moo Hyun Ko, Kie Tak Hyun, Jong Su Choo, Young Bok Son, Kyeong Seon Jeong, Min Park, Sung Hwa Lee, Il Joong Kim, Jin Hyouk Shin, Gun Ho Ha, Jin Wook Seo, Chang Ho Yun, Jin Young Kim, Chang Hoon Lee, Yun Hee Park
  • Publication number: 20090249578
    Abstract: A vacuum cleaner is provided. The vacuum cleaner may include a main body, a dust collector, at least one pressing member, and a driver. The dust collector may be detachably attached to the main body and may include a dust storage chamber. The at least one pressing member may compress dust stored in the dust storage chamber. The driver may be disposed in the dust collector and actuate the at least one pressing member.
    Type: Application
    Filed: March 20, 2009
    Publication date: October 8, 2009
    Inventors: Man Tae HWANG, Hae Seock YANG, Hoi Kil JEONG, Myung Sig YOO, Jae Kyum KIM, Moo Hyun KO, Kie Tak HYUN, Jong Su CHOO, Young Bok SON, Kyeong Seon JEONG, Min PARK, Sung Hwa LEE, Il Joong KIM, Jin Hyouk SHIN, Gun Ho HA, Jin Wook SEO, Chang Ho YUN, Jin Young KIM, Chang Hoon LEE, Yun Hee PARK
  • Publication number: 20090251046
    Abstract: Disclosed herein are novel electrochromic materials. The electrochromic materials produce various colors. The electrochromic materials can be used to form red electrochromic layers in a simple manner. Therefore, the electrochromic materials are suitable for use in the fabrication of RGB full-color electrochromic devices. Also disclosed herein are electrochromic devices fabricated using the electrochromic materials.
    Type: Application
    Filed: October 29, 2008
    Publication date: October 8, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Uk Son, Chang Ho Noh, Ji Min Lee
  • Patent number: 7599242
    Abstract: A semiconductor memory device includes a read bus line for transferring read data; a write bus line for transferring write data; and a temporary data storage unit connected between the read bus line and the write bus line and controlled by a test mode signal enabled during a test mode.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: October 6, 2009
    Assignee: Hynix Semiconductor Inc.
    Inventors: Hwang Hur, Chang-Ho Do
  • Publication number: 20090241286
    Abstract: A vacuum cleaner is disclosed. The vacuum cleaner may include a cleaner body, in which a suction motor is provided; a dust collector selectively attached to the cleaner body, in which a dust container is formed; at least one pressing element that presses dust stored in the dust container; and a drive device that drives the at least one pressing element.
    Type: Application
    Filed: March 20, 2009
    Publication date: October 1, 2009
    Inventors: Man Tae HWANG, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim, Moo Hyun Ko, Kie Tak Hyun, Jong Su Choo, Young Bok Son, Kyeong Seon Jeong, Min Park, Sung Hwa Lee, Il Joong Kim, Jin Hyouk Shin, Gun Ho Ha, Jin Wook Seo, Chang Ho Yun, Jin Young Kim, Chang Hoon Lee, Yun Hee Park, Hyuk-Min Kwon
  • Publication number: 20090242674
    Abstract: A waste disposal system includes a pulverizing tank where wastes are put into; a pulverizing device for pulverizing the wastes and making them into slurry; one or more heat and dry tanks connected to the pulverizing tank for drying and heating the slurry; a heating device for heating the heat and dry tank; and a vapor discharge device for discharging vapors generated by the heat and dry process of the slurry. The waste disposal system further includes a slurry drain unit for discharging the heated and dried slurry.
    Type: Application
    Filed: March 26, 2009
    Publication date: October 1, 2009
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yong Bok LEE, Choong Hyun KIM, Chang Ho KIM
  • Patent number: 7595700
    Abstract: Embodiments of the invention may provide for an LC quadrature oscillator that includes two LC oscillators that are cross-coupled with each other to generate I/Q clock signals and a phase and amplitude mismatch compensator. The phase and amplitude mismatch detector may include an amplitude mismatch detector, a transconductor, and a capacitor for compensating for both phase and amplitude mismatches between I/Q clock signals generated in the LC quadrature oscillator.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: September 29, 2009
    Assignees: Samsung Electro-Mechanics, Georgia Tech Research Corporation
    Inventors: Sangjin Byun, Chang-Ho Lee, Haksun Kim, Joy Laskar
  • Publication number: 20090235956
    Abstract: A vacuum cleaner includes a dust collector that compresses dust stored inside a dust container to minimize the volume of the dust. The dust collector would include one or more pressing plates that are used to compress the dust stored in dust collector. Various methods are used to control movements of the movable pressing plates to facilitate the compression operations. Also, various methods are used to determine when the dust collector is full and needs to be emptied.
    Type: Application
    Filed: March 16, 2009
    Publication date: September 24, 2009
    Inventors: Man Tae HWANG, Hae Seock Yang, Hoi Kil Jeong, Myung Sig Yoo, Jae Kyum Kim, Moo Hyun Ko, Kie Tak Hyun, Jong Su Choo, Young Bok Son, Kyeong Seon Jeong, Min Park, Sung Hwa Lee, Il Joong Kim, Jin Hyouk Shin, Gun Ho Ha, Jin Wook Seo, Chang Ho Yun, Jin Young Kim, Chang Hoon Lee, Yun Hee Park