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.
Patent No.:
Date of Patent:
Jun. 15, 2010
Filed:
Oct. 26, 2007
Applicants:
Hong-shi Kuo, Taiwan, TW;
Ing-shouh Hwang, Taipei, TW;
Tien T. Tsong, Kirkland, WA (US);
Tsu-yi Fu, Taipei, TW;
Inventors:
Hong-Shi Kuo, Taiwan, TW;
Ing-Shouh Hwang, Taipei, TW;
Tien T. Tsong, Kirkland, WA (US);
Tsu-Yi Fu, Taipei, TW;
Assignee:
Academia Sinica, Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 27/00 (2006.01); H01J 27/24 (2006.01); H01T 23/00 (2006.01); G01Q 70/10 (2010.01); G01Q 70/14 (2010.01); G01Q 70/16 (2010.01);
U.S. Cl.
CPC ...
Abstract
A method for preparing an iridium tip with atomic sharpness. The method includes tapering an iridium wire to a needle shape and heating the iridium needle in an oxygen atmosphere. Also disclosed is an iridium needle having a pyramidal structure which terminates with a small number of atoms prepared by the methods.