Inventor · disambiguated record
Sumio Nakagawa
Also filed as: NAKAGAWA SUMIO · TANAKA TOSHIO
11 granted patents·276 citations·filing 1977–1997
91Inventor score
Top patents by PatentIndex Score
11 records- 0187US4600200AThree-dimensional image display systemIKEGAMI TSUSHINKI KK·Filed 1983·Granted Jul 15, 1986·89 cites·19 claims
- 0279US6021159ACircuit for measuring transmission quality of demodulated digital signal transmitted under carrier modulation transmission systemIKEGAMI TSUSHINKI KK·Filed 1997·Granted Feb 1, 2000·64 cites·11 claims
- 0377US4145179ACombustion control systemHITACHI LTD·Filed 1977·Granted Mar 20, 1979·27 cites·5 claims
- 0475US4192641ACombustion control apparatusHITACHI LTD·Filed 1977·Granted Mar 11, 1980·23 cites·27 claims
- 0572US4469839AProcess for preparing an aqueous emulsion of a polymer by emulsion polymerization in the presence of an emulsifierNIPPON SYNTHETIC CHEM IND·Filed 1983·Granted Sep 4, 1984·21 cites·6 claims
- 0657US4389184ACombustion control apparatusHITACHI LTD·Filed 1980·Granted Jun 21, 1983·13 cites·14 claims
- 0755US4445841ACombustion control apparatusHITACHI LTD·Filed 1981·Granted May 1, 1984·12 cites·7 claims
- 0852US4370126ACombustion control apparatusHITACHI LTD·Filed 1979·Granted Jan 25, 1983·11 cites·3 claims
- 0950US4239478ACheck circuit for combustion process control timerHITACHI LTD·Filed 1978·Granted Dec 16, 1980·9 cites·13 claims
- 1040US4455656ACombustion control circuitHITACHI LTD·Filed 1980·Granted Jun 19, 1984·7 cites·3 claims
- 1118US4929768AProcess for preparing dialdehydeNIPPON SYNTHETIC CHEM IND·Filed 1989·Granted May 29, 1990·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →