Ac
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Dec 31, 2024
Grant Date -
Nov 17, 2022
app pub date -
Jun 25, 2020
filing date -
Jun 25, 2020
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
An object of the present invention is to provide a method for purifying efficiently and easily a 226Ra-containing solution obtained when 225Ac is produced from a 226Ra target, a method for producing a 226Ra target by using the purified 226Ra-containing solution obtained by the above purification method, and a method for producing 225Ac including these above methods. The method for purifying a 226Ra-containing solution according to the present invention is characterized by including an adsorption step (R1) of allowing 226Ra ions to adsorb onto a carrier having a function of selectively adsorbing divalent cations by bringing a 226Ra-containing solution (a) into contact with the carrier under an alkaline condition; and an elution step (R2) of eluting the 226Ra ions from the carrier under an acidic condition.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
NIHON MEDI-PHYSICS CO LTD | KOTO-KU TOKYO 136-0075 |
International Classification(s)

- 2020 Application Filing Year
- G21G Class
- 74 Applications Filed
- 46 Patents Issued To-Date
- 62.17 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Honda, Yoshio | Tokyo, JP | 29 | 410 |
# of filed Patents : 29 Total Citations : 410 | |||
Yano, Shinya | Tokyo, JP | 39 | 120 |
# of filed Patents : 39 Total Citations : 120 |
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Patent Citation Ranking
- 0 Citation Count
- G21G Class
- 0 % this patent is cited more than
- 1 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jun 30, 2028 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 30, 2032 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 30, 2036 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
Full Text

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