Light-colored magnetic particles having improved durability and chemical resistance

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11694827
APP PUB NO 20200357544A1
SERIAL NO

16958308

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention can provide light-colored magnetic particles having a zirconium oxide coating layer formed on a magnetic core, and having a silver coating layer formed on the zirconium oxide coating layer, and a part of the surface of the zirconium oxide coating layer is exposed to the outside, but chemical resistance is excellent, and thus the magnetic particles hardly cause a change of magnetic characteristics so as to be suitable for security elements.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • KOREA MINTING, SECURITY PRINTING & ID CARD OPERATING CORP.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Choe, Won Gyun Daejeon, KR 8 16
Choi, Hye Jun Daejeon, KR 2 0
Kang, Ju Hee Daejeon, KR 13 9
Kim, E Den Gwangju, KR 5 1
Kim, Hong Keon Daejeon, KR 8 1
Kim, Hyun Soo Daejeon, KR 232 1324
Kim, Su Dong Daejeon, KR 8 9

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
3.5 Year Payment $1600.00 $800.00 $400.00 Jan 4, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 4, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 4, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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