Fumitaka Sugaya
12Patents
5h-index
6Co-inventors
59Inventor score
Filing activity: Sep 8, 1995 → Mar 11, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5780893A | Non-volatile semiconductor memory device including memory transistor with a composite gate structure | Electricity | 18 | Expired |
| US6201275A | Semiconductor device having semiconductor regions of different conductivity types isolated by field oxide, and method of manufacturing the same | Electricity | 14 | Expired |
| US6288423A | Composite gate structure memory cell having increased capacitance | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6232182A | Non-volatile semiconductor memory device including memory transistor with a composite gate structure and method of manufacturing the same | Electricity | 7 | Expired |
| US5796149A | Semiconductor memory using different concentration impurity diffused layers | Electricity | 7 | Expired |
| US6482692B2 | METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE, HAVING FIRST AND SECOND SEMICONDUCTOR REGIONS WITH FIELD SHIELD ISOLATION STRUCTURES AND A FIELD OXIDE FILM COVERING A JUNCTION BETWEEN SEMICONDUCTOR REGIONS | Electricity | 5 | Expired |
| US6844268B1 | Method for fabricating a semiconductor storage device having an increased dielectric film area | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6486013B2 | Method of manufacturing a semiconductor device having regions of different conductivity types isolated by field oxide | Electricity | 0 | Expired |
| US10879268B2 | Storage device | Physics | 0 | Active |
| US6656781B2 | METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE, HAVING FIRST AND SECOND SEMICONDUCTOR REGIONS WITH FIELD SHIELD ISOLATION STRUCTURES AND A FIELD OXIDE FILM COVERING A JUNCTION BETWEEN SEMICONDUCTOR REGIONS | Electricity | 0 | Expired |
| USRE42004E1 | Method for fabricating a semiconductor storage device having an increased dielectric film area | General | 0 | Active |
| US12141546B2 | Product-sum calculation device and product-sum calculation method | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.