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:
Feb. 21, 2023

Filed:

Mar. 05, 2022
Applicant:

Randaemon Sp. Z O.o, Warsaw, PL;

Inventors:

Janusz Jerzy Borodzinski, Warsaw, PL;

Jan Jakub Tatarkiewicz, San Diego, CA (US);

Assignee:

RANDAEMON SP. Z O.O., Warsaw, PL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D 3/12 (2006.01); G06F 7/58 (2006.01); C25D 7/06 (2006.01); C25D 5/02 (2006.01); C25D 5/12 (2006.01); G21H 5/00 (2006.01);
U.S. Cl.
CPC ...
G06F 7/588 (2013.01); C25D 3/12 (2013.01); C25D 5/022 (2013.01); C25D 5/12 (2013.01); C25D 7/0614 (2013.01); C25D 7/0692 (2013.01); G21H 5/00 (2013.01); H05K 2203/0723 (2013.01);
Abstract

A method for electro-depositing a radioactive material onto a metal substrate is disclosed. This is particularly well-suited for true random number generators. The method includes (a) at least partially masking the metal substrate to expose a metallic surface on the metal substrate; (b) connecting the metal substrate to a cathode of a current source; (c) submersing the exposed metallic surface into a solution containing radioactive metal ions, wherein the solution is connected to an anode of the current source; (d) removing the exposed metallic surface from the solution; (e) removing the solution from the exposed metallic surface; (f) measuring the amount of radioactivity emitted from the exposed metallic surface; and (g) repeating steps (c) through (f) until the amount of radioactivity measured in step (f) is stabilized relative to a previous measurement.


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