Carbon fibers, catalyst for production of carbon fibers, and method for evaluation of carbon fibers

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9114992
APP PUB NO 20140054179A1
SERIAL NO

13973545

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Provided are carbon fibers with low metal ion elution amount without subjecting to high-temperature heat treatment, in which the metal ion may be sometimes precipitated on an electrode of electrochemical devices such as batteries and capacitors to cause short-circuit. The carbon fibers comprises Fe, at least one catalyst metal selected from the group consisting of Mo and V, and a carrier; wherein the carbon fibers have an R value (ID/IG) as measured by Raman spectrometry of 0.5 to 2.0 and have an electrochemical metal elution amount of not more than 0.01% by mass.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
RESONAC CORPORATION13-9 SHIBA DAIMON 1-CHOME MINATO-KU TOKYO 105-8518

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakamura, Takeshi Tokyo, JP 571 5819
Yamada, Yuusuke Tokyo, JP 10 83
Yamamoto, Ryuji Tokyo, JP 108 1484

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
11.5 Year Payment $7400.00 $3700.00 $1850.00 Feb 25, 2027
Fee Large entity fee small entity fee micro entity fee
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00