Seizo Nakano
19Patents
9h-index
46Co-inventors
72Inventor score
Filing activity: May 14, 1974 → Mar 16, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4009458A | Puffer type gas circuit breaker | Electricity | 24 | Expired |
| US4032820A | Horizontal double plane high voltage switching assembly | Electricity | 21 | Expired |
| US6407900B1 | Lightning protection system for wind power generation installation | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4237520A | Gas insulated switch-gear apparatus | Electricity | 14 | Expired |
| US4587592A | Zinc oxide lightning protector | Electricity | 13 | Expired |
| US4215256A | Gas-insulated switchgear apparatus | Electricity | 13 | Expired |
| US5498849A | Structure of metal container having trunk pipe and branch pipe, and manufacturing method and apparatus therefor | Performing Operations; Transporting | 12 | Expired |
| US4570202A | Gas-insulated switchgear equipment | Electricity | 12 | Expired |
| US4045634A | Gas insulated switch-gear apparatus | Electricity | 11 | Expired |
| US5444206A | Structure of metal container having trunk pipe and branch pipe, and manufacturing method and apparatus therefor | Performing Operations; Transporting | 9 | Expired |
| US4354220A | Gas insulated power switch-gear apparatus | Electricity | 9 | Expired |
| US4675773A | Transmission line protection system | Electricity | 7 | Expired |
| US4207446A | Grounded tank type gas circuit breaker | Electricity | 6 | Expired |
| US4658329A | Gas-insulated switchgear apparatus | Electricity | 6 | Expired |
| US4403125A | Gas-insulated disconnecting switch | Electricity | 6 | Expired |
| US3941963A | Circuit breaker | Electricity | 6 | Expired |
| US4321651A | Enclosed-type zinc-oxide surge arrester | Electricity | 4 | Expired |
| US3943777A | Operating apparatus for circuit breaker | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4263491A | Method for checking electric contacts of an enclosed-type switching device and an auxiliary apparatus for use with the switching device to use the method | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.