Patents by Inventor Hye-won Yang

Hye-won Yang 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).

  • Catalyst composition for hydroformylation reaction and hydroformylation process using the same
    Patent number: 8889916
    Abstract: The present invention relates to a catalyst composition for hydroformylation reaction and a hydroformylation process using the same. In the hydroformylation process using the catalyst composition according to the present invention, increased catalytic stability and high catalytic activity can be obtained, and the selectivity of iso-aldehyde produced can be desirably controlled.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: November 18, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Jae-Hui Choi, Dong-Hyun Ko, O-Hak Kwon, Sung-Shik Eom, Moo-Ho Hong, Hye-Won Yang
  • Electrostatic speaker having ventilative diaphragm
    Patent number: 8284967
    Abstract: The present invention relates to an electrostatic speaker including a fixed electrode and a diaphragm that is arranged with a predetermined gap from the fixed electrode and has a plurality of ventilation holes. The ventilative diaphragm reduces air resistance caused by the ground effect between the fixed electrode and the diaphragm, and increases the sound pressure output from the speaker. As a result, the ventilative diaphragm makes it possible to obtain a uniform frequency reproduction characteristic over the entire frequency range. In particular, when the diaphragm is made from Korean paper, it is possible to effectively reduce the ground effect occurring between the fixed electrode and the diaphragm due to the air permeable characteristic of the Korean paper and the air resistance due to a surge input signal, while satisfying physical characteristics of the existing diaphragm. In addition, since the Korean paper has high formability, it is possible to easily form the diaphragm in a hemispherical shape.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: October 9, 2012
    Inventors: Kilseob Yang, Hye-won Yang, Sung-min Yang
  • CATALYST COMPOSITION FOR HYDROFORMYLATION REACTION AND HYDROFORMYLATION PROCESS USING THE SAME
    Publication number: 20120059195
    Abstract: The present invention relates to a catalyst composition for hydroformylation reaction and a hydroformylation process using the same. In the hydroformylation process using the catalyst composition according to the present invention, increased catalytic stability and high catalytic activity can be obtained, and the selectivity of iso-aldehyde produced can be desirably controlled.
    Type: Application
    Filed: July 28, 2011
    Publication date: March 8, 2012
    Applicant: LG Chem, Ltd.
    Inventors: Jae-Hui Choi, Dong-Hyun Ko, O-Hak Kwon, Sung-Shik Eom, Moo-Ho Hong, Hye-Won Yang
  • Electrostatic Speaker having Ventilative Diaphragm
    Publication number: 20100278363
    Abstract: The present invention relates to an electrostatic speaker including a fixed electrode and a diaphragm that is arranged with a predetermined gap from the fixed electrode and has a plurality of ventilation holes. The ventilative diaphragm reduces air resistance caused by the ground effect between the fixed electrode and the diaphragm, and increases the sound pressure output from the speaker. As a result, the ventilative diaphragm makes it possible to obtain a uniform frequency reproduction characteristic over the entire frequency range. In particular, when the diaphragm is made from Korean paper, it is possible to effectively reduce the ground effect occurring between the fixed electrode and the diaphragm due to the air permeable characteristic of the Korean paper and the air resistance due to a surge input signal, while satisfying physical characteristics of the existing diaphragm. In addition, since the Korean paper has high formability, it is possible to easily form the diaphragm in a hemispherical shape.
    Type: Application
    Filed: June 26, 2007
    Publication date: November 4, 2010
    Inventors: Kilseob Yang, Hye-Won Yang, Sung-min Yang
  • Apparatus and method of executing multi-clipboard
    Patent number: 7516398
    Abstract: Provided are an apparatus and method of executing a multi-clipboard. In order to execute the multi-clipboard, it is determined whether a predetermined amount of time has passed after a paste is activated. Then data stored in a basic clipboard is pasted if a signal indicating a user's selection to paste is received before the predetermined amount of time has passed. If the predetermined amount of time has passed, data stored in a multi-clipboard is displayed. As such, it is possible to support a user-friendly multi-clipboard function based on a general clipboard without the need for additional software or hardware.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: April 7, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hye-won Yang
  • Apparatus and method of executing multi-clipboard
    Publication number: 20040230907
    Abstract: Provided are an apparatus and method of executing a multi-clipboard. In order to execute the multi-clipboard, it is determined whether a predetermined amount of time has passed after a paste is activated. Then data stored in a basic clipboard is pasted if a signal indicating a user's selection to paste is received before the predetermined amount of time has passed. If the predetermined amount of time has passed, data stored in a multi-clipboard is displayed. As such, it is possible to support a user-friendly multi-clipboard function based on a general clipboard without the need for additional software or hardware.
    Type: Application
    Filed: December 23, 2003
    Publication date: November 18, 2004
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Hye-won Yang