Inventor · Hitachi, JP

Minoru Sakaguchi

15Patents
7h-index
21Co-inventors
66Inventor score

Filing activity: Apr 17, 1978 → Jan 12, 2001

Most-cited inventions

PatentTitleAreaCited byStatus
US5045968A Gas insulated switchgear with bus-section-unit circuit breaker and disconnect switches connected to external lead-out means connectable to other gas insulated switchgear Electricity 39 Expired
US4862319A Gas-insulated switchgear Electricity 24 Expired
US4967307A Gas insulated switchgear apparatus Electricity 24 Expired
US4215256A Gas-insulated switchgear apparatus Electricity 13 Expired
US5453910A Gas insulated switchgear device Electricity 13 Expired
US5001599A Gas-insulated switchgear apparatus Electricity 11 Expired
US5177664A Gas insulated switchgear Electricity 9 Expired
US4888458A Apparatus for disconnecting a switch of a high voltage electric circuit Electricity 7 Expired
US4651255A Connecting system for gas-insulated switchgear apparatus Electricity 6 Expired
US5670767A Gas-insulated switchgear with improved insulation joint Electricity 4 Expired
US6491458B2 Printing system Physics 4 Expired
US5134542A Three-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 plane Electricity 4 Expired
US6268562A Sealed container and method for assembling it Electricity 4 Expired
US4577075A Earthing switch for gas-insulated switchgear apparatus Electricity 1 Expired
US4458099A Three-phase combined type gas insulated electrical apparatus Electricity 1 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.