Portfolio comparison
Tokyo Shibaura Electric Co Ltd vs Wham O Manufacturing Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Tokyo Shibaura Electric Co Ltd
Patents indexed
1
Year range
1985
Most recent
1985
semiconductorsconsumer_electronics
Top Patents1 enriched
US 4531203· 1985
How Flash Memory Cells Use an Erase Gate to Clear Data
Activity by Decade
1980s1
Company B
Wham O Manufacturing Co
Patents indexed
1
Year range
1967
Most recent
1967
mechanicalconsumer_electronics
Top Patents1 enriched
US 3359678· 1967
How the Modern Frisbee Design Works
Activity by Decade
1960s1
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