Kazumasa Yamamoto
13Patents
5h-index
23Co-inventors
66Inventor score
Filing activity: Apr 14, 1976 → Nov 10, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4558757A | Position coordinate input device | Electricity | 74 | Expired |
| US7366669B2 | Acoustic model creation method as well as acoustic model creation apparatus and speech recognition apparatus | Physics | 68 | Active |
| US4032286A | Gas combustion device with safety device | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US4475415A | Outside door handle | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4681357A | Automotive door handle container | Emerging Cross-Sectional Technologies | 16 | Expired |
| US10574272B2 | Memory system | Physics | 2 | Active |
| US4487877A | Diaphragm for loudspeaker | Electricity | 2 | Expired |
| US10430275B2 | Memory system | Electricity | 2 | Active |
| US8612824B2 | Semiconductor memory device and controlling method | Physics | 0 | Active |
| US9166674B2 | Satellite communication device, and remote control method | Electricity | 0 | Active |
| US10956264B2 | Memory system | Electricity | 0 | Active |
| US11537465B2 | Memory system | Electricity | 0 | Active |
| US11892907B2 | Memory system | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.