Yutaka Shimada
29Patents
9h-index
75Co-inventors
78Inventor score
Filing activity: Jul 16, 1984 → Dec 9, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5383984A | Plasma processing apparatus etching tunnel-type | Emerging Cross-Sectional Technologies | 57 | Expired |
| US5752785A | Drainage pump station and drainage operation method for drainage pump station | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4970435A | Plasma processing apparatus | Electricity | 37 | Expired |
| US4608297A | Multilayer composite soft magnetic material comprising amorphous and insulating layers and a method for manufacturing the core of a magnetic head and a reactor | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5827445A | Composite magnetic article for electromagnetic interference suppressor | Electricity | 32 | Expired |
| US6972097B2 | Composite magnetic material and electromagnetic interference suppressor member using the same | Electricity | 23 | Expired |
| US6055135A | Exchange coupling thin film and magnetoresistive element comprising the same | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6430143B1 | Optical pickup device and optical disc recording and/or reproducing apparatus | Physics | 14 | Expired |
| US7513709B2 | Universal joint | Emerging Cross-Sectional Technologies | 10 | Active |
| US6339543B1 | Writing method for a magnetic immovable memory and a magnetic immovable memory | Electricity | 8 | Expired |
| US4557769A | Soft magnetic material | Electricity | 5 | Expired |
| US4609593A | Magnetic recording medium | Emerging Cross-Sectional Technologies | 4 | Expired |
| US7103895B2 | Optical pickup device, and recorder and/or player | Physics | 4 | Expired |
| US7075163B2 | Electromagnetic noise suppressor, semiconductor device using the same, and method of manufacturing the same | Electricity | 3 | Expired |
| US7000156B2 | Devices for storing and accumulating defect information, semiconductor device and device for testing the same | Physics | 2 | Expired |
| US7355945B2 | Optical pickup adjusting apparatus and adjusting method | Physics | 2 | Expired |
| US7313800B2 | Disk centering system | Physics | 2 | Expired |
| US8323808B2 | Perpendicular magnetic recording medium | Physics | 2 | Active |
| US4641213A | Magnetic head | Physics | 2 | Expired |
| US6623789B2 | Method for fabricating a magnetic recording medium | Physics | 1 | Expired |
| US6740171B2 | Manufacturing method of semiconductor integrated circuit device | Performing Operations; Transporting | 1 | Expired |
| US7073185B2 | Objective lens driving device and optical pickup device employing the objective lens driving device | Physics | 1 | Expired |
| US5135818A | Thin soft magnetic film and method of manufacturing the same | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8691402B2 | Perpendicular magnetic recording medium | Physics | 1 | Active |
| US9023204B2 | Purifier for removing hydrogen fluoride from electrolytic solution | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.