Toru Sekiguchi
40Patents
8h-index
28Co-inventors
75Inventor score
Filing activity: Feb 28, 1983 → Mar 19, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6315504A | Twist Drill | Emerging Cross-Sectional Technologies | 24 | Expired |
| USD540218S1 | Truck cab | General | 21 | Expired |
| US5134606A | Method and optical recording/reproducing apparatus for optimizing laser beam power | Physics | 19 | Expired |
| US5040163A | Laser beam control circuit for optical recording/reproducing apparatus | Physics | 13 | Expired |
| US8967017B2 | Steering device | Performing Operations; Transporting | 13 | Active |
| USD907243S1 | Device for biological or biochemical analysis | General | 12 | Active |
| US4520410A | Scan tracking apparatus for helical scan video tape recorder | Physics | 11 | Expired |
| US6719501B2 | Cemented carbide end mill | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4663679A | Tape address synchronizing apparatus for video tape recorder | Physics | 8 | Expired |
| US5263009A | Focus servo circuit for a magneto-optical disk recording and reproducing apparatus | Physics | 7 | Expired |
| US7021976B2 | Spring connector | Electricity | 6 | Expired |
| US6951489B2 | Spring connector for surface mounting in an electronic device, and method for manufacturing the spring connector | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4630137A | Tape timer apparatus for video tape recorder | Physics | 5 | Expired |
| US4951154A | Magneto-optic recording/reproducing apparatus | Electricity | 4 | Expired |
| US10953911B2 | Steering device | Performing Operations; Transporting | 3 | Active |
| US4587574A | Tape address synchronizing apparatus for video tape recorder | Physics | 3 | Expired |
| US10808658B2 | Connection state determination device for breather pipe | Emerging Cross-Sectional Technologies | 2 | Active |
| US10953910B2 | Steering device | Performing Operations; Transporting | 2 | Active |
| US5253241A | Optical recording apparatus for recording auxillary signals used for focus control | Physics | 2 | Expired |
| US10919561B2 | Steering device | Performing Operations; Transporting | 1 | Active |
| US6898294B2 | Microphone set | Electricity | 1 | Expired |
| US11174765B2 | Abnormality assessment device of internal combustion engine | Emerging Cross-Sectional Technologies | 1 | Active |
| US8851808B2 | Drill having multiple flanks | Emerging Cross-Sectional Technologies | 1 | Active |
| US11053878B2 | Abnormality determination apparatus for internal combustion engine | Emerging Cross-Sectional Technologies | 1 | Active |
| US8071126B2 | Percutaneous absorption type patch | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.