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USPTO Patent Rankings Data through Dec 31, 2025
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Hirohisa Kawamoto — 3 Patents

RCRca: 3 patents #426 of 1,739Top 25%
Princeton, NJ: #958 of 2,186 inventorsTop 45%
New Jersey: #23,671 of 69,400 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Hirohisa Kawamoto has been granted 3 US patents while listed as an inventor at Rca. The first was granted in 1980 and the most recent in December 1985. Hirohisa Kawamoto ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Hirohisa Kawamoto in Princeton, NJ, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
4561087 Conductive video disc Leonard P. Fox, Pabitra Datta, Dennis Lee Matthies 1985-12-24 $3,089,000
4296144 Ion implanted stylus Edward W. Maby, Pierre V. Valembois 1981-10-20 $601,000
4220915 Resistivity measurement system Elmer Lawrence Allen, Jr. 1980-09-02 $902,000