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 7431878 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 07, 2008

Filed:

Nov. 20, 2002
Applicant:

Masato Yamanobe, Tokyo, JP;

Inventor:

Masato Yamanobe, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 5/12 (2006.01); C01B 31/02 (2006.01); H01J 9/02 (2006.01); H05B 3/03 (2006.01); H05B 6/54 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of making an electron-emitting device including the steps of (A) preparing a member comprising first and second substances composed of carbon, wherein the substances have respective reaction rates different from each other for a gas, and (B) heating the member in an atmosphere containing the gas.


Find Patent Forward Citations

Quick Actions:

Yamanobe, Masato. (2008). Process of making an electron-emitting device (U.S. Patent No. 7431878). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7431878

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…