Lufei Lufei Lin from 9335 Laurentian Dr, San Diego, CA 92129, age 65, Phone: (858)6499034

Us Patents

Methods For Tagging And Authenticating Inks Using Compositions
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US Patent:

20070111314, May 17, 2007
Filed:

Nov 8, 2005
Appl. No.:

11/269093
Inventors:

Lufei Lin - San Diego CA, US
John Helfrick - San Diego CA, US
Sundar Vasudevan - Corvallis OR, US
LeAnn Bell - Corvallis OR, US
Mark Wisnosky - San Diego CA, US
International Classification:

G01N 33/24
US Classification:

436027000
Abstract:

A method for tagging an ink with an isotopic tagging composition is provided. The method includes tagging the ink with a tagging composition having an artificial abundance of at least one isotope of an element to produce an authentic ink having an artificial abundance of the at least one isotope of the element which exceeds a natural abundance thereof in the authentic ink. A method for authenticating unidentified ink samples by comparing isotope abundances and/or abundance ratios in the unidentified ink samples with isotope abundances and/or abundance ratios in authentic inks tagged with isotopic tagging compositions is also provided. The method also includes tagging a pigment-based ink with trityl-protected thiol additives and methods for identifying inks containing the same.

Charge Director For Liquid Toner
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US Patent:

20090311614, Dec 17, 2009
Filed:

May 10, 2006
Appl. No.:

12/300305
Inventors:

Yaacov Almog - Nes Ziona, IL
Avi Koller - Rehovot, IL
Elliad Silcoff - Tel Aviv, IL
Albert Teishev - Rishon le-zion, IL
Yaffa Israeli - Tel Aviv, IL
Gary Larson - San Diego CA, US
Lufei Lin - San Diego CA, US
Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX
International Classification:

G03C 3/00
G03G 9/135
G03G 13/10
US Classification:

430 9, 430115, 4301371, 4301171, 977773
Abstract:

A charge director material for charging a liquid toner, the charge director material comprising (a) nanoparticles of a simple salt and (b) a sulfosuccinate salt of the general formula MA, wherein M is a metal, n is the valence of M, and A is an ion of the general formula (I)

Charge Director For Liquid Toner
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US Patent:

20120018683, Jan 26, 2012
Filed:

Sep 27, 2011
Appl. No.:

13/246563
Inventors:

Yaacov Almog - Ness Ziona, IL
Avi Koller - Rehovot, IL
Elliad Silcoff - Tel Aviv, IL
Albert Teishev - Rishon Ie-zion, IL
Yaffa Israell - Tel Aviv, IL
Gary Larson - San Diego CA, US
Lufei Lin - San Diego CA, US
International Classification:

H01B 1/12
B82Y 30/00
US Classification:

2525192, 252500, 2525193, 977773
Abstract:

A charge director material for charging a liquid toner, the charge director material comprising (a) nanoparticles of a simple salt and (b) a sulfosuccinate salt of the general formula MA, wherein M is a metal, n is the valence of M, and A is an ion of the general formula (I)

Methods And Systems For Identifying Ink
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US Patent:

20130221277, Aug 29, 2013
Filed:

Feb 12, 2013
Appl. No.:

13/765131
Inventors:

HEWLETT-PACKARD DEVELOPMENT COMPANY L.P. - , US
Gary William Larson - San Diego CA, US
Lufei Lin - San Diego CA, US
Assignee:

HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. - Fort Collins CO
International Classification:

C09D 11/02
US Classification:

25230116, 106 3113
Abstract:

An ink composition includes a colorant visible under visible light and a tagging composition, including a carrier and a detectable marker dispersed or dissolved in the carrier. The detectable marker is an isotope of an element, the isotope being present in the ink composition in a concentration ranging from about 1 parts per billion (ppb) to about 1000 ppb.

Methods And Systems For Identifying Ink
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US Patent:

20070102635, May 10, 2007
Filed:

Nov 8, 2005
Appl. No.:

11/269041
Inventors:

Zeying Ma - San Diego CA, US
Gary Larson - San Diego CA, US
Lufei Lin - San Diego CA, US
International Classification:

G01J 5/00
US Classification:

250338100
Abstract:

The present invention relates to methods for tagging an ink with a detectable marker and methods for identifying an ink. The tagged ink includes a colorant visible under visible light and a detectable marker capable of fluorescing when subjected to infrared light. A method for identifying an ink includes obtaining a sample of an unidentified ink, subjecting the sample to infrared light such that a detectable marker, if present, fluoresces, and determining whether any fluorescence emitted from the sample corresponds to fluorescence from a tagged ink. A system for identifying an unidentified ink is also disclosed.

Charge Director For Liquid Toner
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US Patent:

20160170320, Jun 16, 2016
Filed:

Feb 23, 2016
Appl. No.:

15/050892
Inventors:

- Fort Collins CO, US
Avi Koller - Nes Ziona, IL
Elliad Silcoff - Nes Ziona, IL
Albert Teishev - Nes Ziona, IL
Yaffa Israeli - Nes Ziona, IL
Gary Larson - San Diego CA, US
Lufei Lin - San Diego CA, US
International Classification:

G03G 9/097
Abstract:

A charge director material for charging a liquid toner, the charge director material comprising (a) nanoparticles of a simple salt and (b) a sulfosuccinate salt of the general formula MA, wherein M is a metal, n is the valence of M, and A is an ion of the general formula (I)wherein each of Rand Ris an alkyl group; said charge director material being substantially free of acids of the general formula (I), wherein one or both of R1 and R2 is hydrogen, and if only one of them is hydrogen, the other is an alkyl group,

Resumes

Lufei Lin

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Location:

San Diego, CA

Industry:

Computer Hardware

Work:

Hewlett-Packard Aug 1997 - Oct 2008
Chemist
Lightstream Photocatalytic Mar 1995 - Jul 1997
Research Engineer
Shaman Pharmaceutical Aug 1991 - Nov 1994
Senior Research Associate
Shanghai Maecf 1982 - 1988
Project Leader

Education:

University of Missouri - Columbia 1989 - 1991
Master of Science, Masters, Chemistry East China University of Science and Technology
Bachelors, Bachelor of Science

Skills:

Coatings
R&D
Hplc
Analytical Chemistry
Uv/Vis
Process Simulation

Interests:

Badminton
I Am Interested In Playing Ping Pong
Running
Tennis
Swimming