NEMOTO & CO., LTD.
16Patents
5Active
16Granted
37Portfolio score
Filing activity: Oct 23, 1989 → Nov 18, 2016 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5424006A | Phosphorescent phosphor | Chemistry; Metallurgy | 162 | Expired |
| US5686022A | Phosphorescent phosphor | Chemistry; Metallurgy | 32 | Expired |
| US5117467A | Colony counting apparatus | Chemistry; Metallurgy | 23 | Expired |
| US5220166A | Information reading method | Physics | 20 | Expired |
| US7279081B2 | Electrochemical sensor | Physics | 6 | Expired |
| US5645663A | Method of manufacturing a luminous sheet radiating flourescence upon irradiation of ultraviolet rays | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US7427365B2 | Phosphorescent phosphor and method of manufacturing thereof | Chemistry; Metallurgy | 4 | Expired |
| US5091155A | Alcohol concentration sensor | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7422704B2 | Phosphorescent phosphor and method of manufacturing thereof | Chemistry; Metallurgy | 2 | Expired |
| US7837898B2 | Green light emitting phosphor | Chemistry; Metallurgy | 2 | Active |
| US5672876A | Method and apparatus for measuring distribution of radioactive nuclide in subject | Physics | 2 | Expired |
| US7579765B2 | Orange-emitting phosphor | Chemistry; Metallurgy | 1 | Active |
| US10669480B2 | Phosphorescent phosphor | Chemistry; Metallurgy | 0 | Active |
| US10845762B2 | Reddish light emitting phosphorescent phosphor | Electricity | 0 | Active |
| US7135130B2 | Electroluminescent phosphor and its production method | Chemistry; Metallurgy | 0 | Expired |
| US8303846B2 | Infra-red light emitting phosphor | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.