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Yuan Yu Phones & Addresses

  • 72 Parlmont Park, North Billerica, MA 01862
  • Billerica, MA
  • 8 Butterfield Ln, Westford, MA 01886 (603) 889-2271
  • 3 Smokey Ln, Nashua, NH 03062
  • Webster, NY
  • Minneapolis, MN
  • 8 Butterfield Ln, Westford, MA 01886

Resumes

Resumes

Yuan Yu Photo 1

R And D Director

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Location:
Billerica, MA
Industry:
Chemicals
Work:
Dsm
R and D Director

Cabot Corporation 2008 - 2017
Business Development Manager

Cabot Corporation May 2004 - Sep 2008
Research Project Leader

Cabot Corporation Jan 1998 - Apr 2004
Senior Research Scientist

University of Minnesota 1991 - 1996
Graduate Student
Education:
University of Minnesota 1991 - 1996
Doctorates, Doctor of Philosophy, Chemistry
Peking University 1986 - 1990
Bachelors, Bachelor of Science, Chemistry
Skills:
Polymers
Chemistry
Coatings
R&D
Materials Science
Product Development
Patents

Publications

Us Patents

Crosslinkable Polymer Compositions For Donor Roll Coatings

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US Patent:
6340528, Jan 22, 2002
Filed:
Jan 19, 2000
Appl. No.:
09/487288
Inventors:
Bing R. Hsieh - Webster NY
Yuan Yu - North Billerica MA
Timothy J. Fuller - Pittsford NY
John F. Yanus - Webster NY
Damodar M. Pai - Fairport NY
Heiko Rommelmann - Webster NY
Allen J. Thompson - Sodus NY
Donald S. Stanton - Penfield NY
Michelle L. Schlafer - Fairport NY
Alan R. Kuntz - Webster NY
Ann M. Kazakos - Webster NY
William H. Wayman - Ontario NY
Steven C. Hart - Ontario NY
Assignee:
Xerox Corporation - Stamford CT
International Classification:
B23B 2736
US Classification:
428412, 428325, 428327, 428332, 4289231, 428447, 4289735, 4284794, 428480, 428500, 428906, 4289088, 399 3, 399 63, 492 18, 492 53
Abstract:
A donor member, useful in ionographic or electrophotographic apparatuses and preferably useful in hybrid scavengeless development units, has a substrate and an oxidized transport coating thereover. The oxidized transport coating includes a polymer binder, charge transporting molecules and one or more oxidizing agents. The polymer binder of the donor roll coating preferably includes one of (1) a crosslinked polymer with charge transporting molecules dispersed therein, or (2) a crosslinked polyamide binder with hydroxy charge transport molecules dispersed therein. The donor roll is preferably included in a printing machine that develops latent images formed on a photoconductive member.

Process For Preparing Colored Pigments

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US Patent:
6398858, Jun 4, 2002
Filed:
Mar 3, 2000
Appl. No.:
09/517857
Inventors:
Yuan Yu - North Billerica MA
Ronald J. Gambale - Wakefield MA
Robert M. Amici - Berlin MA
Assignee:
Cabot Corporation - Boston MA
International Classification:
C09B 6700
US Classification:
106 3164, 106412, 106413, 106472, 106476, 106493, 106494, 106495, 106496, 106497, 106498
Abstract:
The present invention relates to a process for preparing surface-modified colored pigments. The process includes the steps of: preparing a reaction batch comprising a treating agent and a diazotizing agent; adding a colored pigment to the batch; and mixing the colored pigment and the batch under high shear conditions to form a reaction product comprising a surface-modified colored pigment. The treating agent has an organic group which comprises at least one diazotizable group. In a preferred embodiment the diazotizable group comprises a) at least one aromatic group or at least one C -C alkyl group, and b) at least one ionic group, ionizable group, nonionic group, or a mixture thereof. The surface-modified colored pigments prepared by the process of the present invention have been found useful in aqueous or solvent based compositions and particularly in ink jet ink compositions.

Modified Carbon Products Useful In Gas Diffusion Electrodes

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US Patent:
6399202, Jun 4, 2002
Filed:
Oct 12, 1999
Appl. No.:
09/416088
Inventors:
Yuan Yu - North Billerica MA
Laurent Kosbach - Puteaux, FR
Assignee:
Cabot Corporation - Boston MA
International Classification:
B32B 516
US Classification:
428403, 428407, 429 29, 429 43, 429213, 429217
Abstract:
Gas-diffusion electrodes containing modified carbon products are described wherein the modified carbon product is a carbon product having attached at least one organic group. The modified carbon product can be used for at least one component of the electrodes such as the active layer and/or the blocking layer. Methods to extend the service life of electrodes as well as methods to reduce the amount of fluorine containing compounds are also described.

Ink Jet Inks, Inks, And Other Compositions Containing Colored Pigments

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US Patent:
6494943, Dec 17, 2002
Filed:
Oct 27, 2000
Appl. No.:
09/698468
Inventors:
Yuan Yu - Nashua NH
Friedrich K. von Gottberg - Cambridge MA
Robert M. Amici - Berlin MA
Paul S. Palumbo - West Newton MA
Assignee:
Cabot Corporation - Boston MA
International Classification:
C09D 1100
US Classification:
106 3165, 106412, 106415, 106419, 106494, 106495, 106496, 106497, 106498, 106484, 106432, 106436, 106450, 106452, 106453, 106455, 106461, 106479, 106480, 106485
Abstract:
Colored pigments having one or more desired parameters and/or properties are described. These parameters and/or properties include: a) a particles size of from about 10 nm to about 300 nm; b) an accusizer number of less than 10 particles/ml of dispersion at 15% solids which are greater than 0. 5 micron; c) a filterability such that when in a liquid medium, 100 ml having 10% solids of the colored pigment filters through a 3 micron nylon absolute filter; d) a colored pigment purity of greater than about 80%, based on extractable material; and/or e) a stability such that the above-described properties do not change by more than 50% at 25 degrees C. for at least one week. Colored pigments having at least one organic group and having one or more of the above-described characteristics is also described as well as a process for preparing surface-modified colored pigments. The process involves combining at least one treating agent and at least one type of colored pigment(s) in a container to form a mixture and subjecting the mixture to high shearing and introducing at least one diazotizing agent to the mixture at least for a portion of time while the high shearing is taking place, and preferably during the entire time that high shearing is taking place, such that a reaction product is formed and contains surface-modified colored pigment(s).

Ink Jet Inks, Inks, And Other Compositions Containing Colored Pigments

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US Patent:
6506245, Jan 14, 2003
Filed:
Oct 27, 2000
Appl. No.:
09/698328
Inventors:
Thomas A. Kinney - Boston MA
Friedrich K. von Gottberg - Cambridge MA
Yuan Yu - Nashua NH
John F. Welch - Winchester MA
Assignee:
Cabot Corporation - Boston MA
International Classification:
C09B 6700
US Classification:
106493, 106412, 106413, 106472, 106476, 106494, 106495, 106496, 106497, 106498
Abstract:
Colored pigments having one or more desired parameters and/or properties are described. These parameters and/or properties include: a) a particles size of from about 10 nm to about 300 nm; b) an accusizer number of less than 10 particles/ml of dispersion at 15% solids which are greater than 0. 5 micron; c) a filterability such that when in a liquid medium, 100 ml having 10% solids of the colored pigment filters through a 3 micron nylon absolute filter; d) a colored pigment purity of greater than about 80%, based on extractable material; and/or e) a stability such that the above-described properties do not change by more than 50% at 25 degrees C for at least one week. Colored pigments having at least one organic group and having one or more of the above-described characteristics is also described as well as a process for preparing surface-modified colored pigments. The process involves combining at least one treating agent and at least one type of colored pigment(s) in a container to form a mixture and subjecting the mixture to high shearing and introducing at least one diazotizing agent to the mixture at least for a portion of time while the high shearing is taking place, and preferably during the entire time that high shearing is taking place, such that a reaction product is formed and contains surface-modified colored pigment(s).

Capacitors And Supercapacitors Containing Modified Carbon Products

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US Patent:
6522522, Feb 18, 2003
Filed:
Feb 1, 2000
Appl. No.:
09/495798
Inventors:
Yuan Yu - North Billerica MA
Curtis E. Adams - Watertown MA
Assignee:
Cabot Corporation - Boston MA
International Classification:
H01G 900
US Classification:
361502, 361503
Abstract:
Capacitors, including supercapacitors, are described wherein the electrode contains at least one modified carbon product, wherein the modified carbon product is at least one carbon product having attached at least one organic group. The use of the modified carbon product in the electrodes for capacitors preferably leads to improved capacitance and/or lower internal resistance of the capacitor. Further, the use of modified carbon products in the electrodes for capacitors permits easier manufacturing steps for the production of capacitors.

Electrical Charge Relaxable Wear Resistant Coating For Bias Charging Or Transfer Member

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US Patent:
6548154, Apr 15, 2003
Filed:
Nov 28, 2000
Appl. No.:
09/722513
Inventors:
Donald S. Stanton - Penfield NY
Bing R. Hsieh - Webster NY
Allen J. Thompson - Sodus NY
Yuan Yu - Nashua NH
William H. Wayman - Ontario NY
Michelle L. Schlafer - Fairport NY
Heiko Rommelmann - Penfield NY
Ann M. Kazakos - Webster NY
Alan R. Kuntz - Webster NY
Assignee:
Xerox Corporation - Stamford CT
International Classification:
B32B 702
US Classification:
428212, 428220, 428323, 428329, 428332, 428339, 4284231, 4284235, 4284237, 4284242, 4284744, 4284752, 4284758, 428515, 428906, 428931
Abstract:
A bias transfer member or bias charging member for a xerographic device includes a support substrate, and a multi-layer conductive surface coating over the support substrate. The multi-layer coating includes a base layer of metal-containing particles in a polymer binder, an intermediate layer of conductive particles in a polymer binder, and a top layer of conductive particles in a polymer binder, wherein the amount of the conductive particles in the top layer is greater than the amount of the conductive particles in the intermediate layer. The multi-layer coating exhibits ideal electrical and abrasion resistance performance for use in bias charging or transfer members.

Gas Diffusion Electrodes Containing Modified Carbon Products

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US Patent:
6630268, Oct 7, 2003
Filed:
May 18, 2001
Appl. No.:
09/860952
Inventors:
Paolo Tosco - Turin, IT
Laurent Kosbach - Puteaux, FR
Yuan Yu - North Billerica MA
Claudio Orecchia - Castello dAnnone, IT
Assignee:
Cabot Corporation - Billerica MA
Edison Termoelettrica S.p.A. - Milan
International Classification:
H01M 490
US Classification:
429 41, 429 42, 429 44, 204283, 204284, 106 316, 106472, 264105, 264127, 502101
Abstract:
Gas-diffusion electrodes containing modified carbon products are described wherein the modified carbon product is a carbon product having attached at least one organic group. The modified carbon product can be used for at least one component of the electrodes such as the active layer and/or the blocking layer. Methods to extend the service life of electrodes as well as methods to reduce the amount of fluorine containing compounds are also described.

Isbn (Books And Publications)

Software Configuration Management Using Vesta

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Author

Yuan Yu

ISBN #

0387002294

Yuan Yu from Billerica, MA, age ~58 Get Report