Patent news.

Method of making a gyricon display
using magnetic latching
U.S. patent: 6,251,329
Issued: June 26, 2001
Inventor: Nicholas K. Sheridon
Assigned: Xerox
Keywords: Rotating elements with
attached magnetic particles with a liquid
elastomer. Magnetic field is applied
to orient the elements and the elastomer
is cured.

Inversion carbon blacks and method
for their manufacture
U.S. patent: 6,251,983
Issued: June 26, 2001
Inventors: Conny Vogler, Karl Vogel.
Werner Niedermeier. Burkhard Freund
and Paul Messer
Assigned: Degussa - Huls AG
Keywords: Particle size distribution
contains a smaller proportion of particles
with large diameters, lower rolling
resistance, and improved abrasion

Tire having an airtight layer with a
ductile metal layer
U.S. patent: 6,253,814
Issued: July 3, 2001
Inventor: Georges Peyron
Assigned: Compagnie Generale des
Establissements Michelin - Michelin &
Cie

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Tire components having improved
tear strength
U.S. patent: 6,255,372
Issued: July 3, 2001
Inventors: Chen-Chy Lin and Hamada
Tatsuro
Assigned: Bridgestone
Keywords: Polypropylene and anhydride
compatibilizing agent

Star-branched rubber thermoplastic
elastomer vulcanizates
U.S. patent: 6,255,389
Issued: July 3, 2001
Inventors: Trazollah Ouhadi, Donald
S.T. Wang and Paul A. Schacht
Assigned: Advanced Elastomer Systems

High-impact vinylaromatic polymer
obtained from a rubber bearing a
group which generates a stable free
radical
U.S. patent: 6,255,402
Issued: July 3, 2001
Inventors: Jean-Marc Boutillier and
Nathalie Forges
Assigned: Atofina
Keywords: Enhances gloss

Low-aspect tire
U.S. patent: 6,257,290
Issued: July 10, 2001
Inventors: Masayuki Sakamoto,
Atsushi Yamakage and Kazuya Suzuki
Assigned: Sumitomo Rubber

Race tire containing band element
U.S. patent: 6,260,593
Issued: July 17, 2001
Inventors: Charles D. Spragg, Gregory
D. Chaplin, Dale R. Harrigle, Jr. and
James M. Kirby
Assigned: Bridgestone/Firestone
Research

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Composite gasket and assembly comprising
such a gasket
U.S. patent: 6,260,851
Issued: July 17, 2001
Inventor: Daniel Baron
Assigned: Manuli Auto France

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Pneumatic tires and method of
making
U.S. patent: 6,261,399
Issued: July 17, 2001
Inventors: Alain Emile Francois Roesgen,
David Craig, Atte Smits, Eric
Packbier and Marie-Rita Thise
Assigned: Goodyear Tire & Rubber
Keywords: Novel tire construction
wherein the tire preform (10) will not
experience substantially meridional
stretch

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Treatment for rubber-reinforcing
fibers, reinforcing fibers and reinforced
rubbers
U.S. patent: 6,262,154
Issued: July 17, 2001
Inventors: Akinobu Okamura, Takuo
Hamaguchi, Mitsuharu Akiyama,
Osamu Mori and Mitsugu Ishiara
Assigned: Nippon Sheet Glass and Nippon
Zeon
Keywords: Treatment agent comprises
a latex, a resorcinal-formaldehyde condensate
and triazine thiol

Rubber composition for tire tread
U.S. patent: 6,262,158
Issued: July 17, 2001
Inventors: Yoichi Mizuno and Toshiro
Matsuo
Assigned: Sumitomo Rubber
Keywords: Tire tread with decreased
rolling resistance without decreasing
abrasion resistance with
N,N'-bis(2-methyl-2-nitropyl)-1,6-hexane-diamine

Deproteinizing agent and method of
preparing cationic deproteinized natural
rubber latex using the same

U.S. patent: 6,265,479
Issued: July 24, 2001
Inventors: Naoya Ichikawa, Akihiko
Hamada, and Masaharu Hayashi
Assigned: Sumitomo Rubber Industries,
Ltd., and Kao