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:
May. 09, 2006
Filed:
Oct. 14, 2003
Xinbing Liu, Acton, MA (US);
Ming LI, Chelmsford, MA (US);
Makoto Ishizuka, Osaka, JP;
Daniel Hogan, Acton, MA (US);
Kazuaki Ohkubo, Takatsuki, JP;
Mitsuhiko Kimoto, Nara, JP;
Xinbing Liu, Acton, MA (US);
Ming Li, Chelmsford, MA (US);
Makoto Ishizuka, Osaka, JP;
Daniel Hogan, Acton, MA (US);
Kazuaki Ohkubo, Takatsuki, JP;
Mitsuhiko Kimoto, Nara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A microcavity forming device is provided for making microcavities in a tungsten wire. The microcavity forming device includes a source of particles; a housing for receiving a heated tungsten wire; and a plurality of jet nozzles disposed in the housing for spraying the particles toward the heated tungsten wire. The particles are 0.35–0.75 micron in diameter. The heated tungsten wire is received in the housing and the jet nozzles spray the particles toward the tungsten wire to form the microcavities in the tungsten wire.