Yoshinori Otsuka
22Patents
10h-index
43Co-inventors
75Inventor score
Filing activity: Aug 16, 1977 → Mar 20, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6495294B1 | Method for manufacturing semiconductor substrate having an epitaxial film in the trench | Electricity | 46 | Expired |
| US6450025B1 | Micro-heater and airflow sensor using the same | Electricity | 34 | Expired |
| US5895851A | Semiconductor yaw rate sensor with a vibrating movable section with vertical and horizontal displacement detection | Physics | 27 | Expired |
| US5583726A | Magneto-resistive head using flux guide | Physics | 19 | Expired |
| USD451127S | Toner cartridge | General | 18 | Expired |
| US6510024B2 | Magnetic head and method of manufacturing the same | Physics | 17 | Expired |
| US6385422B1 | Developing unit equipped with a toner replenishing device configured with a conveying sheet and rotator | Physics | 16 | Expired |
| USD462712S1 | Toner cartridge | General | 14 | Expired |
| US6431362B1 | Apparatus and method for packaging unit having toner storage | Physics | 13 | Expired |
| US6282776A | Magnetic head and method of manufacturing the same | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5416507A | Cap device for an ink jet recording head | Performing Operations; Transporting | 8 | Expired |
| US6415126B2 | Developing unit with agitator and conveying sheet for toner | Physics | 8 | Expired |
| US5802088A | Stack type semiconductor laser device | Electricity | 6 | Expired |
| US6347207B1 | Developing unit and toner replenishing device with conveying apparatus | Physics | 5 | Expired |
| US6272298A | Developer cartridge | Physics | 5 | Expired |
| US7198155B2 | Packing case and packing method for packing image forming apparatus, and image forming apparatus | Performing Operations; Transporting | 5 | Expired |
| US4126015A | Air cooling apparatus | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US7246049B2 | Analysis method and system of lamp member for vehicle | Physics | 2 | Expired |
| US7424954B2 | Packing case and packing method for packing image forming apparatus, and image forming apparatus | Performing Operations; Transporting | 2 | Active |
| US5308200A | Method of producing a die forming lens fisheye steps | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5777827A | Horizontal type magneto-resistive head using flux guide | Physics | 1 | Expired |
| US7469821B2 | Image forming apparatus and processing unit used for the same | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.