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, 2005
Filed:
Jul. 19, 2001
Tomohiro Ishizu, Hamamatsu, JP;
Suenori Kimura, Hamamatsu, JP;
Tomohiro Ishizu, Hamamatsu, JP;
Suenori Kimura, Hamamatsu, JP;
Hamamatsu Photonics K.K., Hamamatsu, JP;
Abstract
A photomultiplier tube excellent in vibration resistance and having an anode with good pulse linearity characteristic. The photomultiplier tube has a mesh anode (A) composed of an anode frame (A) and a mesh electrode (A) supported and surrounded by the anode frame (A). The central portion of one long side (AB) of the anode frame (A) serves as an electron converging part (F). The inner side of the anode frame (A) swells toward the inner part of the anode (A), more from the middle of the long side (AB) toward the corners of the anode frame (A) along the long side (AB), and therefore the thickness of the anode frame (A) increases from the middle of the long side (A) to the corners along the long side (AB).