Masayuki Kakuta
45Patents
9h-index
37Co-inventors
75Inventor score
Filing activity: Jan 7, 1993 → Apr 12, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6209861A | Sheet transport device and automatic document feeder | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5879000A | Automatic document conveying device | Performing Operations; Transporting | 21 | Expired |
| US6161831A | Sheet transport device and automatic document feeder | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6206368A | Paper transport device with one roller pair | Performing Operations; Transporting | 19 | Expired |
| US5412462A | Automatic document conveying apparatus | Physics | 17 | Expired |
| US7526924B2 | Refrigerator and air conditioner | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5338018A | Automatic document feeder | Physics | 12 | Expired |
| US6814353B1 | Automatic document feeder and image forming device | Performing Operations; Transporting | 10 | Expired |
| US5754934A | Recirculating document feeder | Physics | 10 | Expired |
| US5434660A | Document discharging tray for an automatic document feeder | Physics | 8 | Expired |
| US6698752B1 | Sheet transport device | Performing Operations; Transporting | 8 | Expired |
| US5280899A | Automatic document feeder | Performing Operations; Transporting | 8 | Expired |
| US5367370A | Mounting apparatus for a document-placing table on an image forming machine document feeder | Physics | 8 | Expired |
| US5797597A | Automatic document conveying device | Performing Operations; Transporting | 7 | Expired |
| US5576823A | Automatic document feeder having document separating mechanism | Physics | 7 | Expired |
| US9022378B2 | Sheet conveyance device, document conveyance device, and image forming apparatus | Performing Operations; Transporting | 4 | Active |
| US7490824B2 | Image forming apparatus | Physics | 4 | Active |
| US7752857B2 | Refrigerator and air conditioner | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US8882107B2 | Sheet conveyance device, document feeder, image forming apparatus, and multi feed detection method | Performing Operations; Transporting | 3 | Active |
| US5428424A | Automatic document feeder | Physics | 2 | Expired |
| US8857811B2 | Sheet transport device and image forming apparatus incorporated with the same | Performing Operations; Transporting | 2 | Active |
| US9221637B2 | Sheet conveyance mechanism, document conveyance apparatus and image forming apparatus including the same | Performing Operations; Transporting | 2 | Active |
| US11661299B2 | Conveyance guide unit | Performing Operations; Transporting | 1 | Active |
| US12140897B2 | Image forming apparatus capable of supporting manual feed tray at predetermined angle | Physics | 1 | Active |
| US5452067A | Document conveyor belt release mechanism | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.