TOA Electronics Ltd.
6Patents
0Active
6Granted
25Portfolio score
Filing activity: Aug 19, 1991 → Feb 5, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5900136A | Method of measuring concentration of nonelectrolyte in electrolyte solution, method of preparing mixed solution containing electrolytes and nonelectrolytes and apparatus for preparing the solution | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5320735A | Electrode for measuring pH | Physics | 13 | Expired |
| US5512752A | Method of determining type of plastics | Physics | 9 | Expired |
| US5480534A | Electrode for measuring PH | Physics | 7 | Expired |
| US5762769A | Method of measuring concentration of nonelectrolyte in electrolyte solution, method of preparing mixed solution containing electrolytes and nonelectrolytes and apparatus for preparing the solution | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5573798A | Method of manufacturing an electrode for measuring pH | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.