Method of fluorescent nanodiamonds production

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12012537
APP PUB NO 20210371742A1
SERIAL NO

17319095

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention relates to a fluorescent nanodiamond preparing method including a first operation of preparing nanodiamonds having an average particle diameter of 10 nm or less, a second operation of implanting plasma ions into the nanodiamonds, a third operation of heat-treating the nanodiamonds implanted with the plasma ions under a vacuum or inert gas atmosphere, a fourth operation of oxygen treatment of the heat-treated nanodiamonds under a gas atmosphere including oxygen to oxidize the surfaces of the nanodiamonds, a fifth operation of acid-treating the oxygen-treated nanodiamonds, a sixth operation of centrifuging and cleaning the acid-treated nanodiamonds, and a seventh operation of drying the cleaned nanodiamonds, wherein, in the second operation, the plasma ions are implanted at an incident ion dose of 1013 ions/cm2 or more and 1020 ions/cm2 or less.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYSEOUL SOUTH KOREA SEOUL

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cho, Min Gyeong Seoul, KR 1 0
Han, Seung Hee Seoul, KR 720 14838
Han, Sung Ju Seoul, KR 2 0
Seo, Min Seoul, KR 1 0

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 Dec 18, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Dec 18, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Dec 18, 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