Hideaki Kikuchi
78Patents
12h-index
100Co-inventors
87Inventor score
Filing activity: Feb 20, 1975 → Mar 4, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6208932A | Navigation apparatus | Physics | 203 | Expired |
| US6125326A | Navigation system | Physics | 116 | Expired |
| US5864808A | Erroneous input processing method and apparatus in information processing system using composite input | Physics | 32 | Expired |
| US5620526A | In-situ cleaning of plasma treatment chamber | Chemistry; Metallurgy | 31 | Expired |
| US3982971A | Rare earth-containing permanent magnets | Electricity | 21 | Expired |
| US6926985B2 | Fuel cell stack | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6002345A | Assurance of intercommunication and position recognition between mobile stations with navigation apparatuses | Physics | 16 | Expired |
| US6855448B2 | Fuel cell stack | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6692860B2 | Fuel cell comprising dual seal assembly | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5498849A | Structure of metal container having trunk pipe and branch pipe, and manufacturing method and apparatus therefor | Performing Operations; Transporting | 12 | Expired |
| US7082650B2 | Snap fit mechanism | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7598557B2 | Semiconductor device and method for fabricating a semicondutor device including first and second hydrogen diffusion preventing films | Electricity | 12 | Expired |
| US6746258B2 | Arc-resistant structure of connector | Electricity | 12 | Expired |
| US6815115B2 | Fuel cell and fuel cell stack | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6682944B2 | Semiconductor device manufacturing method | Electricity | 11 | Expired |
| US7174977B2 | Vehicle with electric motor mounted thereon | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5444206A | Structure of metal container having trunk pipe and branch pipe, and manufacturing method and apparatus therefor | Performing Operations; Transporting | 9 | Expired |
| US4733087A | Ion beam treating apparatus | Physics | 9 | Expired |
| US8227337B2 | Semiconductor device having metal wirings of laminated structure | Electricity | 6 | Active |
| US7178374B2 | Press forming apparatus for fuel cell metal separator | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6872483B2 | Fuel cell stack, method of holding fuel cell stack under pressure, and separators | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5104454A | Cleaning method and an apparatus thereof | Chemistry; Metallurgy | 5 | Expired |
| US7201987B2 | Membrane electrode assembly, and fuel cell unit | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7384703B2 | Fuel cell system | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6674264B2 | Cell voltage detector for fuel cell | Emerging Cross-Sectional Technologies | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.