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:
Jun. 22, 2010
Filed:
Jun. 28, 2006
Hiroyuki Sugiyama, Hamamatsu, JP;
Keisuke Inoue, Hamamatsu, JP;
Hitoshi Kishita, Hamamatsu, JP;
Hideki Shimoi, Hamamatsu, JP;
Hiroyuki Kyushima, Hamamatsu, JP;
Hiroyuki Sugiyama, Hamamatsu, JP;
Keisuke Inoue, Hamamatsu, JP;
Hitoshi Kishita, Hamamatsu, JP;
Hideki Shimoi, Hamamatsu, JP;
Hiroyuki Kyushima, Hamamatsu, JP;
Hamamatsu Photonics K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
A photomultiplier tubeis an electron tube comprising an envelopeincluding a framehaving at least one end part formed with an opening and an upper substrateairtightly joined to the opening, and a photocathodecontained within the envelope, the photocathodeemitting a photoelectron into the envelopein response to light incident thereon from the outside; wherein multilayer metal filmseach constituted by a metal film made of titanium, a metal film made of platinum, and a metal film made of gold laminated in this order are formed at the opening and the joint part between the upper substrateand opening; and wherein the frameand upper side substrateare joined to each other by holding a joint layercontaining indium between the respective multilayer metal films