Koji Sekiguchi
17Patents
5h-index
39Co-inventors
66Inventor score
Filing activity: Dec 2, 1975 → Sep 19, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5777212A | Spring relaxation method and rotary viscometer for measuring rheological flow properties of a liquid sample by the method | Physics | 54 | Expired |
| US5287732A | Rotary viscosimeter | Physics | 49 | Expired |
| US5821407A | Automatic viscosity measuring apparatus with rotor automatically detachable | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5201214A | Rotary viscosimeter having pivot protection apparatus | Physics | 11 | Expired |
| US8867324B2 | Reproducing device and reproducing method | Physics | 6 | Active |
| US6514409B2 | Hollow fiber membrane made of an ethylene-vinyl alcohol polymer | Performing Operations; Transporting | 5 | Expired |
| US4054053A | Automatic weld flaw detector | Physics | 5 | Expired |
| US7304001B2 | Fabrication methods of semiconductor integrated circuit device and photomask | Physics | 3 | Expired |
| US7940606B2 | Signal detecting device and signal detecting method | Physics | 1 | Active |
| US11817466B2 | Photoelectric conversion element, photodetector, photodetection system, electronic apparatus, and mobile body | Emerging Cross-Sectional Technologies | 1 | Active |
| US8737181B2 | Optical recording medium, recording/reproducing apparatus, recording/reproducing method | Physics | 0 | Active |
| US10339967B2 | Reproducing apparatus and reproducing method | Physics | 0 | Active |
| US11335371B2 | Reproduction apparatus and reproduction method | Physics | 0 | Active |
| US12187891B2 | Alkylene oxide derivative, defoaming agent, lubricant, cosmetic base material and cosmetics containing same, hair cleaning agent composition, and body cleaning agent composition | Chemistry; Metallurgy | 0 | Active |
| US12255213B2 | Photoelectric conversion element, photodetector, photodetection system, electronic apparatus, and mobile body | Emerging Cross-Sectional Technologies | 0 | Active |
| US9245570B2 | Reproducing apparatus and reproducing method | Physics | 0 | Active |
| US9916856B2 | Playing apparatus and playing method | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.