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:
Dec. 04, 2007
Filed:
Feb. 13, 2003
Susumu Sasaki, Chiba, JP;
Yoshiyuki Kaneko, Hachioji, JP;
Shigemi Hirasawa, Chiba, JP;
Yuuichi Kijima, Chosei, JP;
Kenji Miyata, Hitachinaka, JP;
Susumu Sasaki, Chiba, JP;
Yoshiyuki Kaneko, Hachioji, JP;
Shigemi Hirasawa, Chiba, JP;
Yuuichi Kijima, Chosei, JP;
Kenji Miyata, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
To obtain a paste for electron sources which can enhance heat resistance of carbon nanotubes, which can suppress burn-out of the carbon nanotubes even during heating at a high temperature, and can exhibit a high electron emission performance, boron (B) is added to the paste formed of the carbon nanotubes and metal. Due to the addition of boron, the oxidation of the carbon nanotubes can be suppressed, and the degradation of the electron emission characteristics and the degradation of the uniformity of the emission of electrons during the heating process such as baking can be prevented.