Method for producing slit separator, method for producing separator roll, and method for slitting separator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9687990
SERIAL NO

14780590

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A good-quality slit separator having a small amount of fuzziness at a slit part thereof is to be obtained. The present invention includes: a step (S101) of conveying an original sheet (S); and a step (S102) of slitting the original sheet (S) by causing a slitting blade (72) to cut into the original sheet (S) such that a d tangent plane angle (θ3) in a tangent plane, on which a slitting position is in contact with the original sheet (S), is in a range of not less than 3° to not more than 35°.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • SUMITOMO CHEMICAL COMPANY, LIMITED

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kataoka, Tatsuya Niihama, JP 61 922
Kondo, Masaya Niihama, JP 51 611
Nomura, Kiyomu Niihama, JP 11 6
Oohira, Satoshi Osaka, JP 11 291

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
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 27, 2024
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 27, 2028
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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