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. 05, 1992
Filed:
Sep. 10, 1990
Applicant:
Inventor:
Mitsuo Watanabe, Shizuoka, JP;
Assignee:
Hamamatsu Photonics K. K., Shizuoka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; G01T / ;
U.S. Cl.
CPC ...
25036302 ; 250207 ;
Abstract
A photomultiplier tube has a multi-anode array consisting of a first group of anodes arranged in the Y-direction and a second group of anodes arranged in the X-direction in the form of a plurality of rows. Each of the anodes of the first group for detecting a receiving position of photoelectrons in the Y-direction contains the associated anodes of the second group for detecting the receiving position of photoelectrons in the X-direction so as to form an empty space therebetween.