Shigeki Takeuchi
33Patents
9h-index
55Co-inventors
78Inventor score
Filing activity: Feb 12, 1990 → Jun 17, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6441832B1 | Hierarchical processing apparatus and hierarchical processing method for video and audio data | Physics | 219 | Expired |
| US5443922A | Organic thin film electroluminescence element | Emerging Cross-Sectional Technologies | 215 | Expired |
| US5790502A | Optical pickup with conversion of diffusion angle of outgoing light relative to diffusion angle of incident light | Physics | 120 | Expired |
| US5783818A | Integrated type optical pickup having packaging with gas-tight seal | Physics | 19 | Expired |
| US8270841B2 | Quantum communication apparatus, quantum communication system and quantum communication method | Electricity | 15 | Active |
| US7211812B2 | Entangled photon pair generating apparatus | Electricity | 15 | Expired |
| US5777975A | Optical pickup incorporating an integrated optical guide member | Physics | 10 | Expired |
| US7088824B1 | Single-photon-emission apparatus | Electricity | 9 | Expired |
| US6057944A | Image scanning device | Electricity | 9 | Expired |
| US5278014A | Electrophotographic photoreceptor | Physics | 7 | Expired |
| US5978614A | Image scanning apparatus with light source condition testing | Electricity | 7 | Expired |
| US5978344A | Method of manufacturing integrated optical pick-up | Physics | 6 | Expired |
| US5013625A | Photoreceptor | Physics | 5 | Expired |
| US8528050B2 | Instant messagings | Electricity | 5 | Active |
| US9886188B2 | Manipulating multiple objects in a graphic user interface | Physics | 3 | Active |
| US7049574B1 | Generator for producing photon number state | Electricity | 3 | Expired |
| US8913744B2 | Filtering confidential information in voice and image data | Physics | 3 | Active |
| US6654320B2 | Optical pickup apparatus | Physics | 2 | Expired |
| US9836723B2 | Exchanging messages during a chat session | Electricity | 2 | Active |
| US8064646B2 | Technique for authenticating an object on basis of features extracted from the object | Electricity | 2 | Active |
| US9330267B2 | Filtering confidential information in voice and image data | Physics | 2 | Active |
| US7707402B2 | Quantum cipher communication system | Electricity | 1 | Expired |
| US6421488B1 | Photon beam generator | Physics | 1 | Expired |
| US11068851B2 | Exchanging messages during a chat session | Electricity | 1 | Active |
| US9513767B2 | Displaying posts in real time along axes on a computer screen | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.