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.:

US 7258590 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 21, 2007

Filed:

Jun. 06, 2006
Applicants:

Kazunari Oyama, Kanagawa, JP;

Takeo Tsukamoto, Kanagawa, JP;

Inventors:

Kazunari Oyama, Kanagawa, JP;

Takeo Tsukamoto, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 9/40 (2006.01); D01F 9/12 (2006.01); H01J 1/50 (2006.01);
U.S. Cl.
CPC ...
Abstract

There is provided an electron emitting device utilizing a plurality of carbon fibers, in which a mean diameter value of the plurality of carbon fibers is in a range from a minimum of 10 nm to a maximum of 10 nm, and a standard deviation of diameter distribution of the plurality of carbon fibers is equal to or less than 30% of the mean diameter value.


Find Patent Forward Citations

Oyama, Kazunari. (2007). Electron emitting device using carbon fiber; electron source; image display device; method of manufacturing the electron emitting device; method of manufacturing electron source using the electron emitting device; and method of manufacturing image display device (U.S. Patent No. 7258590). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7258590

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