Yoshiaki Ouchi
17Patents
7h-index
45Co-inventors
62Inventor score
Filing activity: Sep 23, 1983 → Dec 17, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4562555A | Semiconductor memory device | Physics | 57 | Expired |
| US5150325A | Bi-CMOS semiconductor memory device, including improved layout structure and testing method | Physics | 28 | Expired |
| US4868584A | Heat-resistant polyimide insulative coated thermal head | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5276648A | Testing method for a semiconductor memory device | Physics | 12 | Expired |
| US5506804A | Dynamic Random Access Type Semiconductor Device | Physics | 9 | Expired |
| US6034469A | Impregnated type cathode assembly, cathode substrate for use in the assembly, electron gun using the assembly, and electron tube using the cathode assembly | Electricity | 8 | Expired |
| US4760370A | Resistor and an electron tube incorporating the same | Electricity | 7 | Expired |
| US4835548A | Thermal head | Performing Operations; Transporting | 5 | Expired |
| US5157107A | Heat-resistant insulating coating material and thermal head making use thereof | Electricity | 4 | Expired |
| US4906893A | X-ray image intensifier and method of manufacturing the same | Chemistry; Metallurgy | 4 | Expired |
| US6447355B1 | Impregnated-type cathode substrate with large particle diameter low porosity region and small particle diameter high porosity region | Electricity | 3 | Expired |
| US4963893A | Heat-resistant insulating substrate, thermal printing head, and thermographic apparatus | Electricity | 3 | Expired |
| US6304024A | Impregnated-type cathode substrate with large particle diameter low porosity region and small particle diameter high porosity region | Electricity | 2 | Expired |
| US4923763A | Perpendicular magnetic recording medium | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5177498A | Heat-resistant insulating substrate, thermal printing head, and thermographic apparatus | Electricity | 1 | Expired |
| US5119112A | Heat-resistant insulating substrate, thermal printing head, and thermographic apparatus | Electricity | 1 | Expired |
| US4928034A | Impregnated cathode | Electricity | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.