The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 08, 2022

Filed:

Jun. 14, 2018
Applicant:

Riken, Wako, JP;

Inventors:

Tohru Kobayashi, Wako, JP;

Katsumi Midorikawa, Wako, JP;

Assignee:

RIKEN, Wako, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 59/34 (2006.01); B01J 19/12 (2006.01); H01S 3/00 (2006.01);
U.S. Cl.
CPC ...
B01D 59/34 (2013.01); B01J 19/121 (2013.01); H01S 3/0007 (2013.01); Y10S 423/07 (2013.01);
Abstract

First and second laser beams having respective first and second wavelengths respectively excite palladium isotopes at a ground level to a first excited level then to a second excited level. At first and second excitation steps, palladium isotopes having an odd mass number are selectively excited to the second excited level, with the identity of the ion core state of each of the palladium isotopes retained between the first excited level and the second excited level. The first wavelength and the second wavelength are selected to allow the second excited level to be an autoionization level or, in a case where the second excited level is not the autoionization level, the first wavelength, the second wavelength, and a third wavelength are selected to excite the palladium isotopes at the second excited level to the autoionization level with a third laser beam having the third wavelength at a third excitation step.


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