Hitoshi Ohkubo
44Patents
7h-index
44Co-inventors
69Inventor score
Filing activity: Jan 25, 1978 → Aug 30, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4727350A | Surge absorber | Electricity | 36 | Expired |
| US9236171B2 | Coil component and method for producing same | Emerging Cross-Sectional Technologies | 23 | Active |
| US4781218A | Valve assembly for use in a fuel tank of a vehicle | Emerging Cross-Sectional Technologies | 21 | Expired |
| US8975997B2 | Planar coil element | Electricity | 18 | Active |
| US7212095B2 | Inductive element and manufacturing method of the same | Electricity | 15 | Expired |
| US10147540B2 | Planar coil element and method for producing the same | Electricity | 9 | Active |
| US9142343B2 | Coil component | Electricity | 8 | Active |
| US9406420B2 | Coil component and magnetic metal powder containing resin used therefor | Electricity | 6 | Active |
| US10559417B2 | Coil component | Electricity | 5 | Active |
| US11183320B2 | Magnetic core and coil component | Chemistry; Metallurgy | 3 | Active |
| US4194148A | Measuring apparatus for measuring a charging degree of liquid | Physics | 3 | Expired |
| US8048228B2 | Masking apparatus and method of fabricating electronic component | Emerging Cross-Sectional Technologies | 3 | Active |
| US6035127A | Apparatus for closing a film gate in a film cartridge in a single-use camera | Physics | 2 | Expired |
| US11569024B2 | Coil component | Electricity | 2 | Active |
| US10943719B2 | Coil component | Electricity | 2 | Active |
| US5679420A | Polymer resin packaging material for photographic light sensitive material | Emerging Cross-Sectional Technologies | 2 | Expired |
| US10210974B2 | Coil component with covering resin having multiple kinds of metal powders | Electricity | 2 | Active |
| US7905012B2 | Method for manufacturing electronic components | Emerging Cross-Sectional Technologies | 2 | Active |
| US6191592A | Connection inspecting apparatus for a cord and a method for inspecting a connection of a cord | Physics | 1 | Expired |
| US11049641B2 | Coil device | Electricity | 1 | Active |
| US9349522B2 | Coil component | Electricity | 1 | Active |
| US12020854B2 | Coil component | Electricity | 1 | Active |
| US11680307B2 | Magnetic core and coil component | Chemistry; Metallurgy | 1 | Active |
| US10468184B2 | Coil component having resin walls and method for manufacturing the same | Electricity | 1 | Active |
| US11657949B2 | Magnetic core and coil component | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.