Tadao Ohnaka
3Patents
2h-index
11Co-inventors
37Inventor score
Filing activity: Dec 18, 1990 → Mar 19, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5194333A | Packing material for reversed phase chromatography and process for its preparation | Emerging Cross-Sectional Technologies | 83 | Expired |
| US5445698A | Method of fabricating an internal composite layer composed of an electrically insulating substrate with a copper layer formed thereon and a film of a coupling agent covering the copper layer for a multilayer circuit board | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6618447B1 | Multiple signal processing unit for utility wiring by receiver/LAN and utility wiring system by receiver/LAN | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.