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:
Aug. 28, 2001
Filed:
May. 12, 1999
Shimpei Koshigoe, Fukaya, JP;
Syunji Ookubo, Kumagaya, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A cathode structure of an electron gun includes a rectangular insulating substrate made of an anisotropically heat decomposable boron nitride, a cathode base mounted on one surface of the insulating substrate with a conductive layer interposed therebetween, and a heater prepared by patterning an anisotropically heat decomposable graphite film formed on the other surface of the insulating substrate. A slit is formed in each of the end portions of the insulating substrate, and the end portions of the insulating substrate are fixed to support members of a holder by ribbons wound on the end portion so the insulating substrate with being passed through the slits.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile