RICOH ELEMEX CORPORATION
38Patents
10Active
38Granted
42Portfolio score
Filing activity: Dec 14, 1989 → Mar 2, 2018 · 6 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5246367A | Mouth cavity sanitary device | Human Necessities | 157 | Expired |
| US5197460A | Mouth cavity sanitary device | Human Necessities | 146 | Expired |
| US5197458A | Mouth cavity sanitary device | Human Necessities | 132 | Expired |
| USD322314S | Water jet mouth cleaning appliance | General | 132 | Expired |
| US5772129A | Process and apparatus for controlling the cutter of a shredder | Performing Operations; Transporting | 86 | Expired |
| US5662280A | Process and apparatus for controlling paper feed to a shredder | Performing Operations; Transporting | 54 | Expired |
| US5323770A | Mouth cavity sanitary device | Human Necessities | 42 | Expired |
| US7008225B2 | Tooth brusher | Human Necessities | 28 | Expired |
| US5753815A | Thermo-sensitive flow sensor for measuring flow velocity and flow rate of a gas | Physics | 27 | Expired |
| US5852239A | Flow sensor having an intermediate heater between two temperature-sensing heating portions | Physics | 25 | Expired |
| US5763775A | Flow sensor having first and second temperature detecting portions for accurate measuring of a flow rate and a manufacturing method thereof | Physics | 19 | Expired |
| US5983700A | Calibration method of a flow sensor output | Physics | 15 | Expired |
| US5524873A | Finisher for image forming apparatus | Performing Operations; Transporting | 15 | Expired |
| USD569741S1 | Watch | General | 15 | Expired |
| US5703288A | Thermally-sensitive type flow meter having a high accuracy | Physics | 14 | Expired |
| US5957700A | Writing board | Performing Operations; Transporting | 12 | Expired |
| US6118166A | Thin-film microstructure sensor having a temperature-sensitive resistor to provide a large TCR with little variation | Electricity | 12 | Expired |
| US6203673A | Method of producing a thin-film platinum temperature-sensitive resistor for a thin-film microstructure sensor | Electricity | 10 | Expired |
| US6412125B1 | Head/face washing device, shower nozzle with hood, comb-shaped scalp washer and head washing shower brush | Performing Operations; Transporting | 10 | Expired |
| US6230560A | Flow measuring device and flow measuring method | Physics | 8 | Expired |
| US7646678B2 | Analog watch | Physics | 8 | Expired |
| US7702534B1 | Merchandise planning and development system and method for the same, and a computer product | Physics | 7 | Expired |
| US6112591A | Flow sensor | Physics | 6 | Expired |
| US6659768B1 | Oral cavity cleaning device | Human Necessities | 4 | Expired |
| US6094982A | Flow measuring device and flow measuring method | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.