Inventor · disambiguated record
Yoshio Koguchi
Also filed as: KOGUCHI YOSHIO
5 granted patents·1 pending application·94 citations·filing 1994–2004
82Inventor score
Files withHITACHI LTD5
Top patents by PatentIndex Score
6 records- 0183US5852266AVacuum circuit breaker as well as vacuum valve and electric contact used in sameHITACHI LTD·Filed 1997·Granted Dec 22, 1998·32 cites·10 claims
- 0274US5557083AVacuum circuit breaker and electric contactHITACHI LTD·Filed 1994·Granted Sep 17, 1996·22 cites·31 claims
- 0368US6048216AVacuum circuit breaker as well as vacuum valve and electric contact used in sameHITACHI LTD·Filed 1998·Granted Apr 11, 2000·18 cites·3 claims
- 0463US5697150AMethod forming an electric contact in a vacuum circuit breakerHITACHI LTD·Filed 1995·Granted Dec 16, 1997·17 cites·9 claims
- 0560US2004141271A1Electrode for vacuum interrupter, vacuum interrupter using the same and vaccum circuit-breakerFiled 2004·Application pending·0 cites
- 0647US6753494B2Sintered body and electrode, method for surface densitication of these, process for manufacturing electrode by this method and circuit breakerHITACHI LTD·Filed 2002·Granted Jun 22, 2004·5 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →