Patents Assigned to NCR Corproation - Justia Patents Search

Patents Assigned to NCR Corproation

Time-temperature indicators activated with thermal transfer printing and methods for their production

Patent number: 6517239

Abstract: Time-temperature indicators (TTIs) which are generated by converting indicator compounds from an inactive state to an active state using a thermal transfer printing apparatus are described.

Type: Grant

Filed: April 30, 1999

Date of Patent: February 11, 2003

Assignee: NCR Corproation

Inventors: Joseph D. Roth, John C. Rosenbaum
Input/output terminal with display

Patent number: D313793

Type: Grant

Filed: April 26, 1989

Date of Patent: January 15, 1991

Assignee: NCR Corproation

Inventor: Shuzo Kato