Yasuo Kojima
27Patents
12h-index
47Co-inventors
81Inventor score
Filing activity: Feb 19, 1980 → Sep 4, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5238778A | Method of forming printing plates by heat transfer | Performing Operations; Transporting | 44 | Expired |
| US5430591A | Negative pressure flying head slider having siderails with narrow width portion | Physics | 42 | Expired |
| US5232817A | Thermal transfer image receiving material and method for preparing therefrom a proof for printing | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5437952A | Lithographic photosensitive printing plate comprising a photoconductor and a naphtho-quinone diazide sulfonic acid ester of a phenol resin | Physics | 24 | Expired |
| US7101603B2 | Key top plate | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5383073A | Magnetic head supporting apparatus having a fulcrum point of load support offset from a slider center in an air upstream direction | Physics | 17 | Expired |
| US4376371A | Hydraulic circuit for a hydraulically driven vehicle | Performing Operations; Transporting | 17 | Expired |
| US6399915B1 | Method and apparatus for determining quality of welding at weld between working material pieces | Performing Operations; Transporting | 16 | Expired |
| US4542088A | Photopolymerizable compositions and image-forming materials using said compositions | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4324098A | Hydraulic circuit for a hydraulically driven vehicle | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5550002A | Method of producing a printing plate | Physics | 13 | Expired |
| US4547456A | Heat mode recording material and a recording method by the use thereof | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6552877B2 | Magnetic-head supporting mechanism | Physics | 11 | Expired |
| US6226153A | Magnetic-head supporting mechanism | Physics | 9 | Expired |
| US5973880A | Negative pressure flying head slider having improved side rails construction | Physics | 8 | Expired |
| US6180213A | Heat sensitive planographic printing plate, its manufacturing method and image forming method employing the same | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5380612A | Process for manufacturing planographic printing plate | Physics | 7 | Expired |
| US10338486B2 | Electrophotographic photosensitive member and electrophotographic apparatus | Physics | 6 | Active |
| US6958183B2 | Key top plate and a method for manufacturing the same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6621663B2 | Magnetic-head supporting mechanism | Physics | 4 | Expired |
| US7852595B2 | Magnetic disk unit and manufacturing method thereof | Physics | 2 | Active |
| US9129618B1 | Hard disk drive stepped load beam | Physics | 1 | Active |
| US7450345B2 | Magnetic head supporting mechanism with two openings proximate to pivot of load beam | Physics | 1 | Active |
| US10642175B2 | Electrophotographic photosensitive member and method for producing electrophotographic photosensitive member | Physics | 1 | Active |
| US7885039B2 | Magnetic head supporting mechanism with regulating member which prevents over angulation of the slider support | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.