Portfolio comparison
Hitachi Automotive Systems vs AST Research Inc
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Hitachi Automotive Systems
Patents indexed
1
Year range
2016
Most recent
2016
automotiveenergyconsumer_electronicssoftwaretelecommunications
Top Patents1 enriched
US 9397374· 2016
How to Grade Used Batteries for a Second Life
Activity by Decade
2010s1
Top Patents1 enriched
US 5754176· 1998
How Interactive Pop-up Help Windows Work in Computer Interfaces
Activity by Decade
1990s1
How to use
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