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.

Date of Patent:
Feb. 08, 2005

Filed:

May. 08, 2000
Applicants:

Hiroyuki Kyushima, Hamamatsu, JP;

Akira Atsumi, Hamamatsu, JP;

Hideki Shimoi, Hamamatsu, JP;

Inventors:

Hiroyuki Kyushima, Hamamatsu, JP;

Akira Atsumi, Hamamatsu, JP;

Hideki Shimoi, Hamamatsu, JP;

Assignee:

Hamamatsu Photonics K. K., Hamamatsu, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01T001/164 ; H01J043/28 ;
U.S. Cl.
CPC ...
Abstract

A photomultiplier tube enhanced in simplicity and flexibility of mounting, a photomultiplier tube unit enhanced in photomultiplier tube assembling efficiency when unitized, and a radiation detector enhanced in assembling efficiency for a plurality of photomultiplier tubes. The photomultiplier tube () has a hermetically sealed vessel () easily screw-fixed in a predetermined position due to screwing means () provided in the stem plate (). As a result, the photomultiplier tube () can be very easily attached or detached so that even an unskilled person can mount the photomultiplier tube () easily and accurately in a predetermined position by screwing.


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