Ken Sawada
49Patents
9h-index
61Co-inventors
78Inventor score
Filing activity: Dec 22, 1983 → Jul 21, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8193129B2 | Refrigerator oil, compressor oil composition, hydraulic fluid composition, metalworking fluid composition, heat treatment oil composition, lubricant composition for machine tool and lubricant composition | Chemistry; Metallurgy | 757 | Active |
| US7718541B2 | Method of processing resist, semiconductor device, and method of producing the same | Electricity | 34 | Active |
| US6439560B2 | Positioning and clamping apparatus | Performing Operations; Transporting | 34 | Expired |
| US5827618A | Rust-proofing steel sheet for fuel tanks and production method thereof | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4758977A | Electronic dictionary with groups of words stored in sets and subsets with display of the first and last words thereof | Physics | 15 | Expired |
| US7429446B2 | Resist pattern forming method and semiconductor device fabrication method | Physics | 14 | Expired |
| US4636977A | Language translator with keys for marking and recalling selected stored words | Physics | 13 | Expired |
| US4604698A | Electronic translator | Physics | 11 | Expired |
| US7888751B2 | Semiconductor device having a fin field effect transistor | Electricity | 10 | Active |
| US8889031B2 | Working fluid composition for refrigerator machine and refrigerating machine oil | Chemistry; Metallurgy | 8 | Active |
| US7923198B2 | Method of manufacturing fine T-shaped electrode | Electricity | 6 | Active |
| US5030101A | Voice output device for use in electronic appliance | Physics | 5 | Expired |
| US7462892B2 | Semiconductor device | Electricity | 5 | Active |
| USD876919S1 | Electric gripper | General | 5 | Active |
| US8227388B2 | Hydraulic oil composition | Chemistry; Metallurgy | 4 | Active |
| US7993543B2 | Refrigerating machine oil for carbon dioxide refrigerant | Chemistry; Metallurgy | 3 | Active |
| US9090806B2 | Refrigerant oil for freezers and operating fluid composition for freezers | Chemistry; Metallurgy | 3 | Active |
| US10926970B2 | Post-processing apparatus, image forming apparatus incorporating the same, and image forming system incorporating the same | Physics | 3 | Active |
| US9688502B2 | Sheet processing apparatus and image forming system for forming a folding line on a sheet | Performing Operations; Transporting | 3 | Active |
| US8299006B2 | Compressor oil composition | Chemistry; Metallurgy | 2 | Active |
| US8786061B2 | Semiconductor device | Electricity | 2 | Active |
| US8318040B2 | Refrigerator oil and working fluid composition for refrigerating machine | Chemistry; Metallurgy | 2 | Active |
| US8227387B2 | Metalworking oil composition | Chemistry; Metallurgy | 2 | Active |
| US7482643B2 | Semiconductor device | Electricity | 1 | Active |
| US10023823B2 | Refrigerator oil and working fluid composition for refrigerator | Chemistry; Metallurgy | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.