Yoshio Takasu
54Patents
15h-index
76Co-inventors
87Inventor score
Filing activity: Jun 28, 1976 → Sep 9, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4399208A | Electrophotographic photosensitive member | Physics | 57 | Expired |
| US4565761A | Electrophotographic process utilizing an azulenium salt-containing photosensitive member | Emerging Cross-Sectional Technologies | 57 | Expired |
| US4995705A | Device, method and apparatus for optical modulation using ferroelectric polymer liquid crystals | Physics | 52 | Expired |
| US4163892A | Fixing apparatus | Physics | 36 | Expired |
| US4551404A | Disazo electrophotographic photosensitive member | Physics | 31 | Expired |
| US4629670A | Photoconductive film of azulenium salt and electrophotographic photosensitive member | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4673630A | Photoconductive film and electrophotographic photosensitive member contains azulenium salt | Physics | 27 | Expired |
| US4427753A | Electrophotographic photosensitive member with disazo or trisazo compound | Physics | 22 | Expired |
| US5001032A | Photosensitive material containing a photosensitive and heat developable element and a polymerizable layer and image-forming method utilizing the same | Physics | 20 | Expired |
| US4734359A | Thermal recording material for display and image display device utilizing the same | Emerging Cross-Sectional Technologies | 19 | Expired |
| US8338323B2 | Electrode for electrochemical reaction and production process thereof | Chemistry; Metallurgy | 17 | Active |
| US4923390A | Optical recording medium IR-ray absorptive compound and optical recording medium by use thereof | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4423129A | Electrophotographic member having layer containing methylidenyl hydrazone compound | Physics | 17 | Expired |
| US4340660A | Toner for development having crosslinked polymers | Physics | 16 | Expired |
| US4132882A | Process and apparatus for fixing toner with heat and a fixing agent | Physics | 16 | Expired |
| US4456671A | Electrophotographic photosensitive member having a photosensitive layer containing a hydrazone compound | Physics | 15 | Expired |
| US5041369A | Photosensitive material and image forming method | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5258129A | Fluid-permeable agent for non-woven sheets of polyolefin fibers and method of application thereof | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4693951A | Image forming method and image bearing member | Physics | 15 | Expired |
| US4299900A | Electrostatic image magnetic developing process | Physics | 14 | Expired |
| US4548886A | Radiation sensitive organic thin film comprising an azulenium salt | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4336318A | Electrostatic image developing method | Physics | 13 | Expired |
| US4675767A | Opto-magnetic recording medium | Physics | 13 | Expired |
| US4446217A | Electrophotographic photosensitive member having a hydrazone containing layer | Physics | 13 | Expired |
| US5527650A | Image forming method recording medium and visible image reproducing medium | Emerging Cross-Sectional Technologies | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.