Portfolio comparison
Nichia Chemical Industries Ltd vs William F. Semple
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
Nichia Chemical Industries Ltd
Patents indexed
1
Year range
1996
Most recent
1996
semiconductorsconsumer_electronicsenergy
Top Patents1 enriched
US 5563422· 1996
How Nichia Created the First Practical Blue LED Electrodes
Activity by Decade
1990s1
Top Patents1 enriched
US 98304· 1869
William Semple's 1869 Patent for Improved Chewing Gum
Activity by Decade
1860s1
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