Nobuyuki Okuda
33Patents
11h-index
55Co-inventors
78Inventor score
Filing activity: Sep 12, 1991 → Jun 30, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5593187A | Pipe joint | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5725257A | Pipe joint | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5821003A | Organic electroluminescent device | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5765877A | Pipe joint | Emerging Cross-Sectional Technologies | 27 | Expired |
| US7416815B2 | Negative electrode member for lithium battery and process for producing the same | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5152337A | Stack type evaporator | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6070428A | Stack type evaporator | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5514248A | Stack type evaporator | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5380595A | Carbon cluster film having electrical conductivity and method of preparing the same | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5800673A | Stack type evaporator | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5470431A | Stack type evaporator | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6646164B2 | Triphenylamine derivative and organic electroluminescence device comprising the same | Electricity | 10 | Expired |
| US5538763A | Method of preparing carbon cluster film having electrical conductivity | Emerging Cross-Sectional Technologies | 7 | Expired |
| US8852363B2 | Magnesium alloy sheet material | Emerging Cross-Sectional Technologies | 7 | Active |
| US6572683B2 | Substance separation structure and method of preparing the same | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5792567A | Triazole derivatives and organic electroluminescent devices produced therefrom | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6641647B2 | Hydrogen-permeable structure and method of manufacturing the same | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5637260A | Process for producing stabilized carbon cluster conducting material | Emerging Cross-Sectional Technologies | 6 | Expired |
| US9071025B2 | Socket for electronic components | Emerging Cross-Sectional Technologies | 4 | Active |
| US5635455A | Process for producing stabilized carbon cluster conducting or superconducting material | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6453990B2 | Layered heat exchanger | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US6828037B2 | Hydrogen-permeable structure and method for manufacture thereof or repair thereof | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8906294B2 | Magnesium alloy material | Chemistry; Metallurgy | 2 | Active |
| US7775808B2 | Contact sheet with spiral contactors serving as elastic contactors and connecting device including the same | Electricity | 2 | Active |
| US7331798B2 | Connecting element and circuit connecting device using the connecting element | Electricity | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.