Masao Horikawa
5Patents
4h-index
3Co-inventors
50Inventor score
Filing activity: May 20, 1974 → Mar 8, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5325744A | Wrench having wrench sleeves reversible upside down | Performing Operations; Transporting | 14 | Expired |
| US4388506A | Circuit interrupter | Electricity | 8 | Expired |
| US5837950A | Drawer type circuit breaker with drawer contacts biased against contact arcuate portions and external connection terminals | Electricity | 4 | Expired |
| US3940723A | Instantaneously tripping device for circuit interrupter | Electricity | 4 | Expired |
| US6034341A | Circuit breaker | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.