Inventor · disambiguated record
Atsumi Watanabe
Also filed as: WATANABE ATSUMI
11 granted patents·267 citations·filing 1975–1991
92Inventor score
Files withHITACHI LTD11
Top patents by PatentIndex Score
11 records- 0193US4622922ACombustion control methodHITACHI LTD·Filed 1985·Granted Nov 18, 1986·80 cites·19 claims
- 0286US4841514AOptical recording method and apparatus using two fight spotsHITACHI LTD·Filed 1986·Granted Jun 20, 1989·35 cites·13 claims
- 0382US5177717AOptical memory medium and its information recording and erasing method and apparatusHITACHI LTD·Filed 1991·Granted Jan 5, 1993·32 cites·40 claims
- 0477US4718053AOptical information apparatus and method of recording and erasing informationHITACHI LTD·Filed 1985·Granted Jan 5, 1988·23 cites·21 claims
- 0570US4028607AInverter control systemHITACHI LTD·Filed 1975·Granted Jun 7, 1977·16 cites·8 claims
- 0669US4764913ASignal processing apparatus for disc memory devicesHITACHI LTD·Filed 1986·Granted Aug 16, 1988·17 cites·6 claims
- 0766US4100434AGate controlling apparatus for a thyristor valveHITACHI LTD·Filed 1976·Granted Jul 11, 1978·14 cites·12 claims
- 0862US4620491AMethod and apparatus for supervising combustion stateHITACHI LTD·Filed 1985·Granted Nov 4, 1986·18 cites·17 claims
- 0957US4210956AMethod and system of controlling high voltage direct current power transmission plantsHITACHI LTD·Filed 1977·Granted Jul 1, 1980·22 cites·34 claims
- 1045US4223236AGate controlling apparatus for a thyristor valveHITACHI LTD·Filed 1978·Granted Sep 16, 1980·7 cites·6 claims
- 1131US4562507AProtective relayHITACHI LTD·Filed 1984·Granted Dec 31, 1985·3 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →