SUNARROW LTD
27Patents
13Active
27Granted
40Portfolio score
Filing activity: Jun 3, 1991 → Aug 19, 2020 · 6 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5128842A | Uniform illumination plate | Emerging Cross-Sectional Technologies | 92 | Expired |
| US5661279A | Pushbutton switch | Electricity | 74 | Expired |
| US7781690B2 | Key sheet and production method thereof | Emerging Cross-Sectional Technologies | 65 | Active |
| US5664667A | Pushbutton switch | Electricity | 48 | Expired |
| US6084190A | Illuminated keypad key and method of manufacture thereof | Electricity | 41 | Expired |
| US5234744A | Illuminated button key | Emerging Cross-Sectional Technologies | 38 | Expired |
| US6670562B2 | Multi stage and multi direction key and multi stage and multi direction key switch using the same | Electricity | 21 | Expired |
| US7531765B2 | Glass key top, key top marking method, and method for manufacturing key unit using the same | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5945463A | Composition for a gasket and process for producing a gasket using the composition | Chemistry; Metallurgy | 15 | Expired |
| US7250937B2 | Hard base key unit | Electricity | 11 | Expired |
| US7348512B2 | Key unit with reinforcing plate | Electricity | 11 | Expired |
| US6677545B2 | Illumination key and method of manufacture | Electricity | 10 | Expired |
| US7705259B2 | Thin key sheet and thin key unit incorporating the thin key sheet | Electricity | 7 | Expired |
| US7616224B2 | Process of producing key units wherein marking on their tops made of light-transmitting material can be completed later on | Emerging Cross-Sectional Technologies | 3 | Expired |
| US7936335B2 | Operation direction judging method for operation key in direction detecting switch | Electricity | 3 | Active |
| US7852321B2 | Direction detection switch | Electricity | 3 | Active |
| US7705256B2 | Thin key sheet | Electricity | 2 | Active |
| US7759594B2 | Thin key sheet and production method thereof | Electricity | 1 | Active |
| US10540912B2 | Organ model | Performing Operations; Transporting | 1 | Active |
| US10987916B2 | Screen printing apparatus and method of printing including controlling the height of the ink droop | Performing Operations; Transporting | 0 | Active |
| US10713973B2 | Model of viscera, tissues, or organs | Physics | 0 | Active |
| US10864704B2 | Molded product | Emerging Cross-Sectional Technologies | 0 | Active |
| US7512229B2 | Key unit, method for marking key top, and method for manufacturing key unit using the same | Electricity | 0 | Expired |
| US11345136B2 | Resin molded article and manufacturing method therefor | Performing Operations; Transporting | 0 | Active |
| US7834284B2 | Key unit with support frame | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.