Inventor · disambiguated record
Hiroshi Suzuyama
Also filed as: SUZUYAMA HIROSHI
10 granted patents·188 citations·filing 1985–1993
90Inventor score
Files withHITACHI LTD10
Top patents by PatentIndex Score
10 records- 0182US5045968AGas insulated switchgear with bus-section-unit circuit breaker and disconnect switches connected to external lead-out means connectable to other gas insulated switchgearHITACHI LTD·Filed 1989·Granted Sep 3, 1991·52 cites·33 claims
- 0275US5001599AGas-insulated switchgear apparatusHITACHI LTD·Filed 1989·Granted Mar 19, 1991·22 cites·9 claims
- 0368US4888458AApparatus for disconnecting a switch of a high voltage electric circuitHITACHI LTD·Filed 1988·Granted Dec 19, 1989·17 cites·18 claims
- 0468US4862319AGas-insulated switchgearHITACHI LTD·Filed 1987·Granted Aug 29, 1989·27 cites·22 claims
- 0562US5177664AGas insulated switchgearHITACHI LTD·Filed 1990·Granted Jan 5, 1993·24 cites·17 claims
- 0656US5453910AGas insulated switchgear deviceHITACHI LTD·Filed 1993·Granted Sep 26, 1995·22 cites·8 claims
- 0740US5134542AThree-phase package-type gas-insulated switch gear having isolators being aligned in a first plane and earthing switches disposed laterally side by side on a second planeHITACHI LTD·Filed 1990·Granted Jul 28, 1992·10 cites·7 claims
- 0840US4651255AConnecting system for gas-insulated switchgear apparatusHITACHI LTD·Filed 1985·Granted Mar 17, 1987·8 cites·10 claims
- 0930US5367432AInstrument current transformer for power cablesHITACHI LTD·Filed 1993·Granted Nov 22, 1994·4 cites·7 claims
- 1030US4577075AEarthing switch for gas-insulated switchgear apparatusHITACHI LTD·Filed 1985·Granted Mar 18, 1986·2 cites·7 claims
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