Tetsuo Sakurai
36Patents
8h-index
60Co-inventors
78Inventor score
Filing activity: Oct 10, 1975 → Jun 21, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4183653A | Sheet stripper for an electrostatographic apparatus | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6852161B2 | METHOD OF FABRICATING GROUP-III NITRIDE SEMICONDUCTOR CRYSTAL, METHOD OF FABRICATING GALLIUM NITRIDE-BASED COMPOUND SEMICONDUCTOR, GALLIUM NITRIDE-BASED COMPOUND SEMICONDUCTOR, GALLIUM NITRIDE-BASED COMPOUND SEMICONDUCTOR LIGHT-EMITTING DEVICE, AND LIGHT SOURCE USING THE SEMICONDUCTOR LIGHT-EMITTING DEVICE | Electricity | 18 | Expired |
| US8186542B2 | Medicine supply apparatus and tablet case | Physics | 16 | Active |
| US5119211A | Image reader for an image forming apparatus | Electricity | 12 | Expired |
| US3992089A | Reader-printer apparatus with multiple supply rolls and charging devices | Physics | 11 | Expired |
| US5051839A | Digital copier | Electricity | 10 | Expired |
| US5105286A | Image reading apparatus | Electricity | 9 | Expired |
| US6147776A | Apparatus for controlling a scanning speed of an image scanner | Electricity | 8 | Expired |
| US5172244A | Digital copier | Electricity | 7 | Expired |
| US6628424B2 | Digital synthesizer digital copier and magnification control unit | Electricity | 7 | Expired |
| US6938530B1 | Tablet conveying apparatus and tablet cutting apparatus | Emerging Cross-Sectional Technologies | 7 | Expired |
| USD475794S1 | Tablet cutting machine | General | 6 | Expired |
| US5200837A | Digital copier including means for erasing digital image data over a given area, especially suitable for preventing jamming of paper | Electricity | 5 | Expired |
| US8590327B2 | Refrigerating apparatus | Emerging Cross-Sectional Technologies | 4 | Active |
| US7601979B2 | Gallium nitride-based compound semiconductor multilayer structure and production method thereof | Electricity | 4 | Expired |
| US6515767B1 | Digital synthesizer, digital copier and magnification control unit | Electricity | 4 | Expired |
| US6823980B2 | Tablet conveying apparatus and tablet cutting apparatus | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7728876B2 | Imaging apparatus having camera control unit and separate camera head | Electricity | 3 | Active |
| US7482635B2 | Gallium nitride-based compound semiconductor multilayer structure and production method thereof | Electricity | 3 | Expired |
| US8854513B2 | Imaging device to output an electric signal and vary gain based on temperature of an imaging element | Electricity | 2 | Active |
| US8591656B2 | Compound semiconductor manufacturing device, compound semiconductor manufacturing method, and jig for manufacturing compound semiconductor | Electricity | 1 | Active |
| US6646092B2 | Method for manufacturing amphoteric urethane resin and amphoteric urethane resin and resin composition obtained therewith | Chemistry; Metallurgy | 1 | Expired |
| US7714894B2 | Remote head camera | Electricity | 1 | Active |
| US7855386B2 | N-type group III nitride semiconductor layered structure | Electricity | 1 | Active |
| US8216830B2 | Culture apparatus | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.