Patents by Inventor E-Ming Wu

E-Ming 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: 20250076763
    Abstract: A photosensitive resin laminate and application thereof are provided. The photosensitive resin laminate consists of two or more photosensitive resin layers and includes a second component, wherein: when the photosensitive resin laminate is characterized by gas chromatography with added toluene as an internal standard, an elution peak of the second component is at a retention time ranging from 0.55 min to 1.30 min, an elution peak of the added toluene is at a retention time ranging from 1.32 min to 1.65 min, and the following formula is satisfied: Area ? of ? the ? elution ? peak of ? the ? second ? component Area ? of ? the ? elution ? peak of ? the ? added ? toluene × Amount ? of ? the added ? toluene Mass ? of ? the ? photosensitive ? resin ? laminate × 100 ? % = 0.1 % - 7.
    Type: Application
    Filed: February 28, 2024
    Publication date: March 6, 2025
    Inventors: ZIH-I CHUANG, YUN-JUNG WU, E-MING HO
  • Patent number: 4273706
    Abstract: Nondiffusible compounds are described having at least one releasable 2-(2-heterocyclylazo)-1-naphthol dye moiety having the formula: ##STR1## wherein: G is hydroxy, a salt thereof, or a hydrolyzable precursor thereof; or a group which together with ##STR2## is CAR, said CAR being bonded to the naphthalene group through the oxygen of said ##STR3## group; Z represents the atoms necessary to complete a heterocyclic ring;CAR represents a ballasted carrier moiety; andt is a positive integer of 1 to 2.
    Type: Grant
    Filed: September 14, 1979
    Date of Patent: June 16, 1981
    Assignee: Eastman Kodak Company
    Inventors: Derek D. Chapman, E-ming Wu
  • Patent number: 4228073
    Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable azo dye moiety. The compound has the formula: ##STR1## wherein: G is a metal chelating group (or a salt or hydrolyzable precursor thereof) or a group which together with a ##STR2## group is CAR (bonded through the oxygen); G.sup.1 is a hydroxy group (or a salt or hydrolyzable precursor thereof);Z is an electron withdrawing group;Z' is alkyl, aryl or N(R).sub.2 (R being H, alkyl or aryl);CAR is a ballasted carrier moiety; andt is 0 or 1.The dye can be transferred imagewise to an image-receiving layer where it can be contacted with metal ions to form a metal-complexed azo dye transfer image of excellent stability. The retained dye image in the photographic element can also be bleached, fixed and metallized to form a color transparency or a motion picture film.
    Type: Grant
    Filed: March 29, 1979
    Date of Patent: October 14, 1980
    Assignee: Eastman Kodak Company
    Inventors: Derek D. Chapman, E-Ming Wu
  • Patent number: 4207104
    Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable 2-(2-heterocyclylazo)-1-naphthol dye moiety which contains a nitrogen atom adjacent to the point of attachment to the azo linkage. The compound contains a ballasted carrier moiety which is capable of releasing the diffusible azo dye under alkaline conditions. The dye is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed azo dye transfer image of excellent stability.
    Type: Grant
    Filed: January 9, 1979
    Date of Patent: June 10, 1980
    Assignee: Eastman Kodak Company
    Inventors: Derek D. Chapman, E-Ming Wu
  • Patent number: 4204870
    Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable 2-(2-heterocyclylazo)-1-naphthol dye moiety which contains a nitrogen atom adjacent to the point of attachment to the azo linkage. The compound contains a ballasted carrier moiety which is capable of releasing the diffusible azo dye under alkaline conditions. The dye is transferred imagewise to an image-receiving layer where it is contacted with metal ions to form a metal-complexed azo dye transfer image of excellent stability.
    Type: Grant
    Filed: January 9, 1979
    Date of Patent: May 27, 1980
    Assignee: Eastman Kodak Company
    Inventors: Derek D. Chapman, E-ming Wu
  • Patent number: 4183755
    Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable azo dye moiety. The compound has the formula: ##STR1## wherein: G is a metal chelating group (or a salt or hydrolyzable precursor thereof) or a group which together with a ##STR2## is CAR (bonded through the oxygen); G.sup.1 is a hydroxy group (or a salt or hydrolyzable precursor thereof);Z is an electron withdrawing group;Z' is alkyl, aryl or N(R).sub.2 (R being H, alkyl or aryl);CAR is a ballasted carrier moiety; andt is 0 or 1.The dye can be transferred imagewise to an image-receiving layer where it can be contacted with metal ions to form a metal-complexed azo dye transfer image of excellent stability. The retained dye image in the photographic element can also be bleached, fixed and metallized to form a color transparency or a motion picture film.
    Type: Grant
    Filed: October 10, 1978
    Date of Patent: January 15, 1980
    Assignee: Eastman Kodak Company
    Inventors: Derek D. Chapman, E-Ming Wu
  • Patent number: 4148643
    Abstract: Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable azo dye moiety. The compound has the formula: ##STR1## wherein: G is a metal chelating group (or a salt or hydrolyzable precursor thereof) or a group which together with a ##STR2## IS CAR (bonded through the oxygen); G.sup.1 is a hydroxy group (or a salt of hydrolyzable precursor thereof);Z is an electron withdrawing group;Z' is alkyl, aryl or N(R).sub.2 (R being H, alkyl or aryl);Car is a ballasted carrier moiety; andT is 0 or 1.The dye can be transferred imagewise to an image-receiving layer where it can be contacted with metal ions to form a metal-complexed azo dye transfer image of excellent stability. The retained dye image in the photographic element can also be bleached, fixed and metallized to form a color transparency or a motion picture film.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: April 10, 1979
    Assignee: Eastman Kodak Company
    Inventors: Derek D. Chapman, E-Ming Wu