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:
Mar. 15, 2011
Filed:
Apr. 10, 2007
Hitoshi Inaba, Tokyo, JP;
Yoshinori Okubo, Tokyo, JP;
Yoshiyuki Yagi, Tokyo, JP;
Shunichi Sato, Kawagoe, JP;
Kazuhito Nishimura, Nankoku, JP;
Hitoshi Inaba, Tokyo, JP;
Yoshinori Okubo, Tokyo, JP;
Yoshiyuki Yagi, Tokyo, JP;
Shunichi Sato, Kawagoe, JP;
Kazuhito Nishimura, Nankoku, JP;
Casio Computer Co., Ltd., Tokyo, JP;
Kochi Industrial Promotion Center, Kochi-Shi, JP;
Abstract
The present invention aims to suppress calorific value and prolong a lifetime of an apparatus that generates soft X-rays. Thus, the present invention provides a static elimination apparatus that includes an emitter as an electron emitting portion and a target, in which a thin film formed of diamond particles each having a particle size of 2 nm to 100 nm is formed on a surface of the emitter. The thin film has a diamond XRD pattern in an XRD measurement and, in a Raman spectroscopic measurement, a ratio of an sp3 bonding component to an sp2 bonding component within the film of 2.5 to 2.7:1. When a DC voltage is applied to the emitter, with a threshold electric field intensity of 1 V/μm or less, electrons larger in number than the prior art are emitted from the emitter and moreover, a temperature of the emitter is hardly increased, thus obtaining a longer lifetime.