Inventor · disambiguated record
Tetsuo Matsushima
Also filed as: MATSUSHIMA TETSUO
12 granted patents·1 pending application·191 citations·filing 1976–2021
92Inventor score
Top patents by PatentIndex Score
13 records- 0183US5576625ATest method and apparatus for testing a protective relay systemTOSHIBA KK·Filed 1995·Granted Nov 19, 1996·57 cites·3 claims
- 0275US5786699ATest method and apparatus for testing a protective relay systemTOSHIBA KK·Filed 1997·Granted Jul 28, 1998·36 cites·6 claims
- 0367US4344143ADigital type distance relay systemTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted Aug 10, 1982·24 cites·12 claims
- 0465US4073009AApparatus for calculating amplitude values of sinusoidal wavesTOKYO SHIBAURA ELECTRIC CO·Filed 1976·Granted Feb 7, 1978·16 cites·14 claims
- 0552US6498709B2Digital distance relayTOSHIBA KK·Filed 2001·Granted Dec 24, 2002·6 cites·12 claims
- 0652US4212046ADistance relaying systemsTOKYO DENRYOKI K K·Filed 1978·Granted Jul 8, 1980·11 cites·4 claims
- 0750US4857854ADigital fault locatorTOSHIBA KK·Filed 1986·Granted Aug 15, 1989·12 cites·7 claims
- 0850US4333151AMethod for protecting an electric power system and digital protective systemTOKYO SHIBAURA ELECTRIC CO·Filed 1979·Granted Jun 1, 1982·9 cites·16 claims
- 0947US2023181400A1Negative-pressure shield deviceMEDICAL TRANSP INC·Filed 2021·Application pending·0 cites
- 1043US7233470B2Distance relay apparatusTOSHIBA KK·Filed 2003·Granted Jun 19, 2007·2 cites·14 claims
- 1139US4357666ADigital distance relaysTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted Nov 2, 1982·8 cites·6 claims
- 1238US4073008AApparatus for calculating amplitude valuesTOKYO SHIBAURA ELECTRIC CO·Filed 1976·Granted Feb 7, 1978·4 cites·5 claims
- 1336US5666060ATest method and apparatus for testing a protective relay systemTOSHIBA KK·Filed 1996·Granted Sep 9, 1997·6 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →