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:
Feb. 21, 2006
Filed:
Nov. 12, 2003
Yasuharu Negi, Hamamatsu, JP;
Yasuyuki Egawa, Hamamatsu, JP;
Toru Hirohata, Hamamatsu, JP;
Minoru Niigaki, Hamamatsu, JP;
Yasuharu Negi, Hamamatsu, JP;
Yasuyuki Egawa, Hamamatsu, JP;
Toru Hirohata, Hamamatsu, JP;
Minoru Niigaki, Hamamatsu, JP;
Hamamatsu Photonics K.K., Shizuoka, JP;
Abstract
The invention relates to a photocathode and the like having such structure for holding a photocathode plate on a light transparent member with good reliability and workability. In the photocathode, claw portions of a holding member fixed to the light transparent member is pressed against the lower surface of a supporting plate so that a photocathode plate is sandwiched between the light transparent member and the supporting plate. Thus, the supporting plate is pressed against the photocathode plate, so that the photocathode plate is pressed against the light transparent plate by the supporting plate. This allows the photocathode plate to be held reliably by the light transparent member. This simple configuration further provides good workability in assembling.