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:
Jan. 25, 2011
Filed:
Oct. 23, 2008
Tomohiro Ishizu, Hamamatsu, JP;
Yasuyuki Egawa, Hamamatsu, JP;
Atsuhito Fukasawa, Hamamatsu, JP;
Motohiro Suyama, Hamamatsu, JP;
Tomohiro Ishizu, Hamamatsu, JP;
Yasuyuki Egawa, Hamamatsu, JP;
Atsuhito Fukasawa, Hamamatsu, JP;
Motohiro Suyama, Hamamatsu, JP;
Hamamatsu Photonics K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
An electron tube of the present invention includes: a vacuum vessel including a stem portion made of quartz and formed with an opening; a lid portion connected to the stem portion via a joining member made of aluminum so as to seal the opening, having a recess portion depressed to a vacuum side in the opening, and made of Kovar; a voltage applying section arranged in the vacuum vessel; and wiring for electrically connecting the voltage applying section and the lid portion.