Toshio Usui
6Patents
5h-index
20Co-inventors
59Inventor score
Filing activity: Dec 13, 1976 → Sep 28, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5310707A | Substrate material for the preparation of oxide superconductors | Electricity | 45 | Expired |
| US5045527A | Method of producing a superconductive oxide conductor | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4101879A | Cursor movement control device for screen-segmented display apparatuses | Physics | 23 | Expired |
| US5369275A | Apparatus for solid surface analysis using X-ray spectroscopy | Physics | 11 | Expired |
| US4851764A | High temperature environmental testing apparatus for a semiconductor device having an improved holding device and operation method of the same | Physics | 10 | Expired |
| US5172736A | Apparatus for manufacturing spring unit | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.