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:
Dec. 06, 1994
Filed:
Nov. 30, 1992
Applicant:
Inventors:
Keiichi Ohishi, Hamamatsu, JP;
Hideaki Suzuki, Hamamatsu, JP;
Hiroyuki Watanabe, Hamamatsu, JP;
Junichi Takeuchi, Hamamatsu, JP;
Assignee:
Hamamatsu Photonics K.K., Hamamatsu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313532 ; 3131 / ; 3131 / ; 313535 ; 313536 ; 313542 ;
Abstract
There is disclosed a process for forming a photocathode having high quantum yield which comprises the first step of making a number of fine concavities and convexities in a surface of a substrate finished substantially in a mirror; the second step of blunting the fine concavities and convexities; and the third step of coating a photoelectron emissive material on the surface of the substrate.
Ohishi, Keiichi. (1994). Photoelectron emitting device having a photocathode made of (U.S. Patent No. 5371435). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5371435
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile