logo

For the Inventor, By the Inventor

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.:

US 5336966 B1

PDFFull Text
Date of Patent:
Aug. 09, 1994

Filed:

Sep. 11, 1992

4-layer structure reflection type photocathode and photomultiplier using

Applicant:
Inventors:

Kiyoshi Nakatsugawa, Hamamatsu, JP;

Kazuyoshi Oguri, Hamamatsu, JP;

Hiroyuki Onda, Hamamatsu, JP;

Hiroyuki Watanabe, Hamamatsu, JP;

Assignee:

Hamamatsu Photonics K.K., Shizuoka, JP;

Attorney:

Sughrue, Mion, Zinn, Macpeak & Seas

Primary Examiner:

Donald J Yusko

Assistant Examiner:

N D Patel

Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313532 ; 313542 ; 313530 ; 2502141 ; 250207 ;
Abstract

A high performance reflection type photocathode for use in a photomultiplier tube is formed by sequentially depositing three layers on a substrate made of nickel. The first layer is made of either one of chromium, manganese and magnesium as a major component and is deposited over the substrate. The second layer is made of aluminum as a major component and is deposited over the first layer. The third layer is made of antimony and at least one kind of alkaline metals and is deposited over the second layer.

Find Patent Forward Citations

Quick Actions:

Nakatsugawa, Kiyoshi. (1994). 4-layer structure reflection type photocathode and photomultiplier using (U.S. Patent No. 5336966). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5336966

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…