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:
Jun. 17, 1993
Applicant:
Inventor:
Takao Marui, Hadano, JP;
Assignee:
Shimadzu Corporation, Kyoto, US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250309 ; 250305 ; 250287 ; 250307 ;
Abstract
A time-of-flight (TOF) type ion scattering spectroscope (ISS) using a mixture of ions of different masses. Ions having a mass smaller than the smallest mass of the atoms in the sample surface can precisely discriminate light-weight object atoms of slightly different masses. Ions having an intermediate mass between heavy-weight atoms and light-weight atoms in the sample surface can precisely discriminate heavy-weight object atoms of slightly different masses.