Patents by Inventor Shu Hua Wu

Shu Hua Wu 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: 20220113199
    Abstract: The present disclosure provides embodiments of semiconductor devices. In one embodiment, the semiconductor device includes a dielectric layer and a fin-shaped structure disposed over the dielectric layer. The fin-shaped structure includes a first p-type doped region, a second p-type doped region, and a third p-type doped region, and a first n-type doped region, a second n-type doped region, and a third n-type doped region interleaving the first p-type doped region, the second p-type doped region, and the third p-type doped region. The first p-type doped region, the third p-type doped region and the third n-type doped region are electrically coupled to a first potential. The second p-type doped region, the first p-type doped region and the second p-type doped region are electrically coupled to a second potential different from the first potential.
    Type: Application
    Filed: October 13, 2020
    Publication date: April 14, 2022
    Inventors: Zi-Ang Su, Ming-Shuan Li, Shu-Hua Wu, Chih Chieh Yeh, Chih-Hung Wang, Wen-Hsing Hsieh
  • Publication number: 20210255383
    Abstract: The disclosure provides an optical device including a diffusion layer, a light-emitting device, and a first photoluminescent film. The diffusion layer is disposed opposite to the light-emitting device, and the light-emitting device includes a plurality of light-emitting units. The first photoluminescent film is between the diffusion layer and the light-emitting device. A first distance between the first photoluminescent film and the diffusion layer is greater than a second distance between the first photoluminescent film and one of the plurality of light-emitting units. The optical device of the disclosure may improve brightness efficiency.
    Type: Application
    Filed: January 27, 2021
    Publication date: August 19, 2021
    Applicant: Innolux Corporation
    Inventors: Chieh Ying Chen, Ming Yen Lin, Chun Hsu Lin, Hsin-Yi Huang, Shu Hua Wu
  • Patent number: 7025820
    Abstract: A method for forming an aqueous carbon black dispersion including providing a reaction mixture including carbon black having a DBP uptake of greater than 90 cc/100 g of the carbon black, a monovalent ion persulfate, an aqueous medium, and, in some embodiments, a strong acid; subjecting the reaction mixture to a first temperature of from 40° C. to 90° C. for from 2 hours to 24 hours; neutralizing the reaction mixture to a pH greater than 7.0, and, in certain embodiments, subjecting the neutralized reaction mixture to a second temperature of from 20° C. to 40° C. higher than the first temperature for from 2 hours to 12 hours is provided. In an alternative aspect carbon black having a particle diameter less than 18 nanometers in diameter and a DBP uptake of less than 70 cc/100 g carbon black is provided. The aqueous carbon black dispersion so formed and an aqueous inkjet ink containing the aqueous carbon black dispersion are also provided.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: April 11, 2006
    Assignee: Rohm and Haas Company
    Inventors: Tabb Robertson Champlin, Stephen Andrew Crescimanno, Eric Jon Langenmayr, Richard Shu-Hua Wu
  • Patent number: 6991763
    Abstract: Disclosed is a process for controlling the level of in-process monomer in an emulsion polymerization reaction. Also disclosed is a method of controlling particle size by controlling the level of in-process monomer.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: January 31, 2006
    Assignee: Rohm and Haas Company
    Inventors: Michael Raymond Connelly, Dennis Patrick Stack, Richard Shu-Hua Wu, Ronald Ray Zimmer
  • Patent number: 6896212
    Abstract: A method of using polymeric grinding media to produce fine solid particles or fine solid dispersions in liquid, such as pigment dispersions for inks, is provided. The method of the present invention limits packing and plugging problems associated with polymeric media to allow efficient milling operation.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: May 24, 2005
    Assignee: Rohm and Haas Company
    Inventors: Vere Orland Archibald, Richard Shu-Hua Wu
  • Publication number: 20040255980
    Abstract: This invention relates to a process for cleaning reactors. The process utilizes a solvent fed from multiple pressure sources to clean reactors of residual polymers. The reactors are equipped with agitators and stationary nozzles aimed at the agitator blades. The agitator is rotated during cleaning. The process may also utilize heated aqueous base to clean heat exchangers in external loops. In one aspect, a mixture of at least one organic solvent and aqueous base are utilized to clean certain reactors.
    Type: Application
    Filed: March 3, 2004
    Publication date: December 23, 2004
    Inventors: Spencer Wayne Bruce, James Kent Carpenter, Jeanine Lee Hurry, Joseph Richard Povernick, Frank Randolph Robertson, Robert Hugh Schwartz, Richard Shu-Hua Wu
  • Publication number: 20040251331
    Abstract: A method of using polymeric grinding media to produce fine solid particles or fine solid dispersions in liquid, such as pigment dispersions for inks, is provided. The method of the present invention limits packing and plugging problems associated with polymeric media to allow efficient milling operation.
    Type: Application
    Filed: September 4, 2003
    Publication date: December 16, 2004
    Inventors: Vere Orland Archibald, Richard Shu-Hua Wu
  • Publication number: 20040143053
    Abstract: A method of preparing an emulsion polymer having a low residual monomer content, wherein the method includes the simultaneous addition of an oxidizing agent and a reducing agent to different locations on the process side of a heat exchanger is provided.
    Type: Application
    Filed: January 7, 2004
    Publication date: July 22, 2004
    Inventors: Richard Shu-Hua Wu, David Arthur Pierce, Owen Clifford Hallerud
  • Publication number: 20040103822
    Abstract: A method for forming an aqueous carbon black dispersion including providing a reaction mixture including carbon black having a DBP uptake of greater than 90 cc/100 g of the carbon black, a monovalent ion persulfate, an aqueous medium, and, in some embodiments, a strong acid; subjecting the reaction mixture to a first temperature of from 40° C. to 90° C. for from 2 hours to 24 hours; neutralizing the reaction mixture to a pH greater than 7.0, and, in certain embodiments, subjecting the neutralized reaction mixture to a second temperature of from 20° C. to 40° C. higher than the first temperature for from 2 hours to 12 hours is provided. In an alternative aspect carbon black having a particle diameter less than 18 nanometers in diameter and a DBP uptake of less than 70 cc/100 g carbon black is provided. The aqueous carbon black dispersion so formed and an aqueous inkjet ink containing the aqueous carbon black dispersion are also provided.
    Type: Application
    Filed: November 3, 2003
    Publication date: June 3, 2004
    Inventors: Tabb Robertson Champlin, Stephen Andrew Crescimanno, Eric Jon Langenmayr, Richard Shu-Hua Wu
  • Patent number: 6723161
    Abstract: A method for oxidizing an organic pigment including dispersing the pigment in an aqueous medium and exposing the dispersed pigment to ultrasonic radiation, whereby the exposed pigment exhibits from 3 to 10 microequivalents of carboxylic acid, or salts thereof, per square meter of pigment surface.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: April 20, 2004
    Assignee: Rohm and Haas Company
    Inventors: Eric Jon Langenmayr, Richard Shu-Hua Wu
  • Patent number: 6722377
    Abstract: This invention relates to a process for cleaning reactors. The process utilizes a solvent fed from multiple pressure sources to clean reactors of residual polymers. The reactors are equipped with agitators and stationary nozzles aimed at the agitator blades. The agitator is rotated during cleaning. The process may also utilize heated aqueous base to clean heat exchangers in external loops. In one aspect, a mixture of at least one organic solvent and aqueous base are utilized to clean certain reactors.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: April 20, 2004
    Assignee: Rohm and Haas Company
    Inventors: Spencer Wayne Bruce, James Kent Carpenter, Jeanine Lee Hurry, Joseph Richard Povernick, Frank Randolph Robertson, III, Robert Hugh Schwartz, Richard Shu-Hua Wu
  • Publication number: 20030101909
    Abstract: A method for oxidizing an organic pigment including dispersing the pigment in an aqueous medium and exposing the dispersed pigment to ultrasonic radiation, whereby the exposed pigment exhibits from 3 to 10 microequivalents of carboxylic acid, or salts thereof, per square meter of pigment surface.
    Type: Application
    Filed: November 18, 2002
    Publication date: June 5, 2003
    Inventors: Eric Jon Langenmayr, Richard Shu-Hua Wu
  • Patent number: 6515082
    Abstract: This invention relates to a process for preparing polymers which contain as polymerized units hydrophobic monomers wherein a stable emulsion is formed and the formation of suspension particles is minimized. The process includes making a concentrated monomer emulsion, diluting the concentrated monomer emulsion with water, feeding the diluted monomer emulsion to a reactor, and polymerizing the monomer.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: February 4, 2003
    Assignee: Rohm And Haas Company
    Inventors: Jeffrey Lewis Brown, Dennis Patrick Stack, Richard Shu-Hua Wu
  • Patent number: 6380324
    Abstract: A continuous process for preparing polymers in a non-cylindrical heat exchanger is disclosed. The amount of monomer fed and polymer in the reactor is controlled to minimize fouling of the reactor. The use of steam to control the temperature of the reaction mixture is also disclosed.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: April 30, 2002
    Assignee: Rohm and Haas Company
    Inventors: Dawn Marie McFadden, Richard Shu-Hua Wu
  • Patent number: 6353087
    Abstract: This invention relates to a process for stripping polymer reaction compositions. The process reduces gel in the polymer reaction composition by adjusting the pH of the polymer to from 7 to 11 prior to stripping and maintaining the adjusted pH during stripping, maintaining the temperature of the polymer at from 30° C. to 70° C. during stripping, utilizing a continuous stripping operation, or combinations thereof.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: March 5, 2002
    Assignee: Rohm and Haas Company
    Inventors: I-Hwa Midey Chang-Mateu, James Michael Lipovsky, Dawn Marie McFadden, Richard Shu-Hua Wu
  • Publication number: 20020001547
    Abstract: Disclosed is a process for controlling the level of in-process monomer in an emulsion polymerization reaction. Also disclosed is a method of controlling particle size by controlling the level of in-process monomer.
    Type: Application
    Filed: April 4, 2001
    Publication date: January 3, 2002
    Inventors: Michael Raymond Connelly, Dennis Patrick Stack, Richard Shu-Hua Wu, Ronald Ray Zimmer
  • Patent number: 6320000
    Abstract: A process for preparing polymers is disclosed. The process utilizes displacement of air in a polymerization reactor with water vapor, a closed system, and a pump at high operating pressure to pump the polymer through a heat exchanger in an external loop, resulting in reduced volatile organic compound emissions.
    Type: Grant
    Filed: April 5, 2000
    Date of Patent: November 20, 2001
    Inventors: Jeanine Lee Hurry, Robert Hugh Schwartz, Richard Shu-Hua Wu
  • Patent number: 6252016
    Abstract: A continuous process for preparing polymers is disclosed. The continuous process includes the steps of continuously feeding a reaction mixture containing a monomer into a non-cylindrical channel, continuously controlling the temperature of the non-cylindrical channel by exposing the surface of the non-cylindrical channel not exposed to the monomer to a temperature control medium, polymerizing the monomer in the non-cylindrical channel, and continuously removing the polymer from the non-cylindrical channel. The continuous process is suitable for the preparation of polymers containing ethylenically unsaturated monomers as polymerized units by emulsion polymerization, solution polymerization, and suspension polymerization.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: June 26, 2001
    Assignee: Rohm and Haas Company
    Inventors: Richard Shu-Hua Wu, Jill Ann Wudarski, James Szkolnick Kempner