Jun Murata
91Patents
18h-index
159Co-inventors
87Inventor score
Filing activity: Sep 19, 1988 → Jan 30, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6737318B2 | Semiconductor integrated circuit device having switching misfet and capacitor element and method of producing the same, including wiring therefor and method of producing such wiring | Electricity | 105 | Expired |
| US5629898A | Dynamic memory device, a memory module, and a method of refreshing a dynamic memory device | Physics | 82 | Expired |
| US5504029A | Method of producing semiconductor integrated circuit device having memory cell and peripheral circuit MISFETs | Electricity | 79 | Expired |
| US5153685A | Semiconductor integrated circuit device having switching MISFET and capacitor element and method of producing the same, including wiring therefor and method of producing such wiring | Electricity | 57 | Expired |
| US5804479A | Method for forming semiconductor integrated circuit device having a capacitor | Electricity | 46 | Expired |
| US7962068B2 | Charging member, process cartridge and electrophotographic apparatus | Emerging Cross-Sectional Technologies | 40 | Active |
| US7693457B2 | Charging member, process cartridge, and electrophotographic apparatus | Physics | 38 | Active |
| US5734188A | Semiconductor integrated circuit, method of fabricating the same and apparatus for fabricating the same | Electricity | 37 | Expired |
| US5034777A | Transferring device having charging device with double oxide and voltage control | Physics | 31 | Expired |
| US5578849A | Semiconductor integrated circuit device including a memory device having memory cells with increased information storage capacitance | Electricity | 25 | Expired |
| US5732009A | Semiconductor integrated circuit device including a DRAM in which a cell selection transistor has a stabilized threshold voltage | Electricity | 22 | Expired |
| US5349218A | Semiconductor integrated circuit device including memory cells having a structure effective in suppression of leak current | Electricity | 22 | Expired |
| US5264712A | Semiconductor integrated circuit, method of fabricating the same and apparatus for fabricating the same | Electricity | 21 | Expired |
| US5917211A | Semiconductor integrated circuit, method of fabricating the same and apparatus for fabricating the same | Electricity | 21 | Expired |
| US5081515A | Semiconductor integrated circuit device | Electricity | 20 | Expired |
| US5171348A | Die for press-molding optical element | Chemistry; Metallurgy | 20 | Expired |
| US5032160A | Method of press molding lens material | Performing Operations; Transporting | 19 | Expired |
| US6023597A | Cellular conductive roller with conductive powder filling open cells in the surface | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5268587A | Semiconductor integrated circuit device including a dielectric breakdown prevention circuit | Electricity | 17 | Expired |
| US5930624A | Method of producing semiconductor integrated circuit device having switching MISFET and capacitor element including wiring | Electricity | 17 | Expired |
| US5751801A | Charging member with surface layer comprising polymers, and image forming apparatus using the same | Physics | 15 | Expired |
| US8064803B2 | Charging member, process cartridge, and electrophotographic apparatus | Emerging Cross-Sectional Technologies | 14 | Active |
| US5270768A | Charging member containing reduced titanium oxide and device using same | Physics | 12 | Expired |
| US7664434B2 | Charging member, process cartridge and electrophotographic apparatus | Emerging Cross-Sectional Technologies | 12 | Active |
| US5766753A | Elastic member for electrophotography and electrophotographic device using the same | Emerging Cross-Sectional Technologies | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.