Polishing composition for magnetic disc substrate

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10233358
APP PUB NO 20180057712A1
SERIAL NO

15684543

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

Embodiments relate to a polishing composition for a magnetic disk substrate, where the polishing composition contains colloidal silica, a water-soluble polymer compound, and water. According to at least one embodiment, the water-soluble polymer compound has a weight average molecular weight of 20,000 to 10,000,000 and a concentration of 0.0001 to 2.0% by mass.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
YAMAGUCHI SEIKEN KOGYO CO LTD1631 SHIMIZUYAMA 2-CHOME MIDORI-KU NAGOYA-SHI AICHI 4598009

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ando, Junichiro Aichi, JP 6 3

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 Sep 19, 2026
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 19, 2030
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