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:
May. 29, 2012
Filed:
Feb. 23, 2010
Hiroyuki Sugiyama, Hamamatsu, JP;
Hideki Shimoi, Hamamatsu, JP;
Tsuyoshi Kodama, Hamamatsu, JP;
Hitoshi Kishita, Hamamatsu, JP;
Yasuyuki Kohno, Hamamatsu, JP;
Keisuke Inoue, Hamamatsu, JP;
Hiroyuki Sugiyama, Hamamatsu, JP;
Hideki Shimoi, Hamamatsu, JP;
Tsuyoshi Kodama, Hamamatsu, JP;
Hitoshi Kishita, Hamamatsu, JP;
Yasuyuki Kohno, Hamamatsu, JP;
Keisuke Inoue, Hamamatsu, JP;
Hamamatsu Photonics K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
A photomultiplier tube including a casing having a glass substrate with a main surface made with an insulating material, dynodes having a 1stage to an Nstage which are arrayed to be spaced away sequentially from a first end side to a second end side on the main surface, a photocathode installed on the first end side to be spaced away from the 1stage dynode to emit photoelectrons, and an anode part installed on the second end side to be spaced away from the Nstage dynode, wherein a groove is formed between two adjacent dynodes on the main surface of the glass substrate, and the 1stage to the Nstage dynodes are fixed on raised parts adjacent to the grooves.