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Xuzhi Qin

from Covina, CA

Xuzhi Qin Phones & Addresses

  • Covina, CA
  • 2417 Kiska Ave, Hacienda Heights, CA 91745
  • West Covina, CA
Name / Title
Company / Classification
Phones & Addresses
Xuzhi Qin
President
J&J DOLLAR CITY
581 N Azusa Ave, Covina, CA 91722
Xuzhi Qin
President
J&J DOLLAR MART
3031 - 3035 Allgyer Ave, El Monte, CA 91732
581 N Azusa Ave, Covina, CA 91722
518 N Azusa Ave, Covina, CA 91722

Us Patents

  • Photochromic Benzodioxine Fused Naphthopyran Compounds, Compositions And Articles Containing Those Naphthopyran Compounds

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  • US Patent:
    6858732, Feb 22, 2005
  • Filed:
    Mar 1, 2002
  • Appl. No.:
    10/090594
  • Inventors:
    Xuzhi Qin - Hacienda Heights CA, US
    J. Thomas Ippoliti - St. Paul MN, US
  • Assignee:
    Vision-Ease Lens, Inc. - Ramsey MN
  • International Classification:
    C07D405/00
    C07D409/00
    C07D313/00
    C07D309/00
    C07D335/04
  • US Classification:
    546 41, 5462801, 5462824, 5462827, 549 12, 549 24, 549 25, 549 41, 549354, 549358
  • Abstract:
    Benzodioxino-naphtho[1,2-b]pyran compounds having particularly advantageous photochromic properties, such as, high sensitivity/coloration, two distinct absorption bands in the 430-500 nm range and 520-620 nm range of the visible spectrum may be generally described as a naphthopyran having a central nucleus of the formula: wherein F is a 1,4-benzodioxine ring.
  • Naphthopyran Compounds, Photoresponsive Compositions And Lenses

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  • US Patent:
    6863843, Mar 8, 2005
  • Filed:
    Dec 21, 2000
  • Appl. No.:
    09/746322
  • Inventors:
    Frank J. Hughes - Edina MN, US
    Xuzhi Qin - Hacienda Heights CA, US
    J. Thomas Ippoliti - St. Paul MN, US
  • Assignee:
    Vision-Ease Lens, Inc. - Ramsey MN
  • International Classification:
    G02B005/23
  • US Classification:
    252586, 351163, 549389, 548525
  • Abstract:
    A photochromic [1,2-b] naphthopyran having a fluoro substituent in at least one of the 7-position or the 9-position of the naphthopyran provides a stable photochromic compound with a narrow range of absorption. A preferred photochromic naphthopyran has the 2-position of the naphthopyran with two aromatic substituents thereon. It is further preferred to have at least one 2-position aromatic substituent comprising a phenyl group. The photochromic naphthopyran may also have at least one 2-position aromatic substituent comprise a phenyl group having one substituent selected from the group consisting of an anthranilyl, azepinyl, benzoxazolyl, dialkylamino, diazepinyl, diazolyl, imidazolidinyl, imidazolyl, imidazolinyl, indazolyl, indo eninyl, indolinyl, indolizinyl, indolyl, indoxazinyl, isobenzazolyl, isoindolyl, isooxazolyl, isooxazyl, isopyrrol, isoquinolyl, isothiazolyl, julolideno, morpholino, morpholinyl, oxadiazolyl, oxathiazolyl, oxathiazyl, oxathiolyl, oxatriazolyl, oxazolyl, piperazinyl, piperazyl, piperidyl, purinyl, pyranopyrrolyl, pyrazinyl, pyrazolidinyl, pyrazolinyl, pyrazolyl, pyrazyl, pyridazinyl, pyridazyl, pyridyl, pyrimidinyl, pyrimidyl, pyridenyl, pyrrolidinyl, pyrrolinyl, pyrroyl, quinolizinyl, quinocyclidinyl, quinolyl, thiazolyl, triazolyl and triazyl group.
  • Oxygen-Containing Heterocyclic Fused Naphthopyrans

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  • US Patent:
    6963003, Nov 8, 2005
  • Filed:
    Oct 27, 2003
  • Appl. No.:
    10/694111
  • Inventors:
    Xuzhi Qin - Hacienda Heights CA, US
  • Assignee:
    Vision-Ease Lane - Ramsey MN
  • International Classification:
    C07D311/78
  • US Classification:
    549383, 549384
  • Abstract:
    This invention relates to novel naphthopyrans having an oxygen-containing heterocyclic group F annelated on the i, j, or k side of the naphthopyran ring, having certain substituents at the 2, 5, and 6 positions of the naphthopyran ring. These naphthopyrans may have the formula (I) presented below: These compounds (I) have interesting photochromic properties. Also related to this invention are host materials that contain such naphthopyran compounds, and articles such as ophthalmic lenses or other plastic transparencies that incorporate the naphthopyran compounds.
  • Photochromic Naphthopyran Compounds: Compositions And Articles Containing Those Naphthopyran Compounds

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  • US Patent:
    7008568, Mar 7, 2006
  • Filed:
    Nov 20, 2001
  • Appl. No.:
    10/038350
  • Inventors:
    Xuzhi Qin - Hacienda Heights CA, US
  • Assignee:
    Vision-Ease Lens, Inc. - Ramsey MN
  • International Classification:
    G02B 5/23
    C07D 311/78
    C07D 471/00
  • US Classification:
    252586, 549381, 549330, 549331, 549354, 546 41, 548417, 540576
  • Abstract:
    A photochromic naphthopyran displays good color distribution when the naphthopyran has a central nucleus of the formula:.
  • Laminated Functional Wafer For Plastic Optical Elements

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  • US Patent:
    7036932, May 2, 2006
  • Filed:
    Oct 6, 2003
  • Appl. No.:
    10/680658
  • Inventors:
    Michael S. Boulineau - Forest Lake MN, US
    Eric J. Woelfle - Princeton MN, US
    Xuzhi Qin - Hacienda Heights CA, US
    Hideyo Sugimura - Northoaks MN, US
    Derek Harris - Woodbury MN, US
  • Assignee:
    Vision-Ease Lens - Ramsey MN
  • International Classification:
    G02C 7/10
  • US Classification:
    351163, 351177, 351166
  • Abstract:
    A functional wafer of the present invention is disclosed to solve manufacturing difficulties involved in the production of optical elements such as polycarbonate ophthalmic lenses. The functional wafer may include a front layer, a functional layer, and a back layer, whereas the front layer and the back layer are bonded to the functional layer with or without additional adhesive. Said functional layer is smaller than at least the front layer by about 0. 5 mm to 5 mm along the perimeter edge. A functional wafer of this construction can be conveniently and effectively incorporated into a lens through an insert injection molding process, in which said back layer will be in contact with the lens material.
  • Oxygen-Containing Heterocyclic Fused Naphthopyrans

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  • US Patent:
    7074943, Jul 11, 2006
  • Filed:
    Oct 3, 2005
  • Appl. No.:
    11/242199
  • Inventors:
    Xuzhi Qin - Hacienda Heights CA, US
  • Assignee:
    Vision-Ease Lens - Ramsey MN
  • International Classification:
    C07D 311/78
  • US Classification:
    549383, 549384
  • Abstract:
    This invention relates to novel naphthopyrans having an oxygen-containing heterocyclic group F annelated on the i, j, or k side of the naphthopyran ring, having certain substituents at the 2, 5, and 6 positions of the naphthopyran ring. These naphthopyrans may have the formula (I) presented below:.
  • Polarizing Plate With Melanin

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  • US Patent:
    7354150, Apr 8, 2008
  • Filed:
    Aug 18, 2005
  • Appl. No.:
    11/207373
  • Inventors:
    Hideyo Sugimura - North Oaks MN, US
    Xuzhi Qin - Hacienda Heights CA, US
    Michael S. Boulineau - Forest Lake MN, US
  • Assignee:
    Insight Equity A.P.X., L.P. - Ramsey MN
  • International Classification:
    G02C 7/10
  • US Classification:
    351163, 351 49, 351159, 351177, 264 132
  • Abstract:
    The present invention is directed to the incorporation of melanin in an optical article with polarization properties. Such an article includes a first polymer layer containing a polarizing agent, a second polymer layer containing melanin and wherein the second polymer layer is disposed upon the first polymer layer.
  • Laminated Functional Wafer For Plastic Optical Elements

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  • US Patent:
    7377639, May 27, 2008
  • Filed:
    Apr 5, 2006
  • Appl. No.:
    11/398814
  • Inventors:
    Michael S. Boulineau - Forest Lake MN, US
    Eric J. Woelfle - Princeton MN, US
    Xuzhi Qin - Hacienda Heights CA, US
    Hideyo Sugimura - Northoaks MN, US
    Derek Harris - Woodbury MN, US
  • Assignee:
    Insight Equity A.P. X, LP - Ramsey MN
  • International Classification:
    G02C 7/02
  • US Classification:
    351177, 351163, 351166, 351172
  • Abstract:
    A functional wafer of the present invention is disclosed to solve manufacturing difficulties involved in the production of optical elements such as polycarbonate ophthalmic lenses. The functional wafer may include a front layer, a functional layer, and a back layer, whereas the front layer and the back layer are bonded to the functional layer with or without additional adhesive. Said functional layer is smaller than at least the front layer by about 0. 5 mm to 5 mm along the perimeter edge. A functional wafer of this construction can be conveniently and effectively incorporated into a lens through an insert injection molding process, in which said back layer will be in contact with the lens material.

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