Akihiro Maruyama
41Patents
11h-index
66Co-inventors
78Inventor score
Filing activity: May 25, 1989 → Feb 14, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8546050B2 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Physics | 37 | Active |
| US8465889B2 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Physics | 33 | Active |
| US9599917B2 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Physics | 32 | Active |
| US8795936B2 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Physics | 31 | Active |
| US9726992B2 | Electrophotographic photosensitive member, manufacturing method of electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Physics | 30 | Active |
| US9274442B2 | Electrophotographic image forming apparatus having charge transport layer with matrix-domain structure and charging member having concavity and protrusion | Physics | 30 | Active |
| US9280071B2 | Method of producing electrophotographic photosensitive member, and emulsion for a charge transporting layer | Physics | 29 | Active |
| US9436107B2 | Method of producing electrophotographic photosensitive member, and emulsion for a charge transporting layer | Physics | 28 | Active |
| US5482645A | Non-ozone depleting cleaning composition for degreasing and defluxing purposes | Electricity | 19 | Expired |
| US9034545B2 | Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Physics | 15 | Active |
| US9235144B2 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Physics | 14 | Active |
| US9507283B2 | Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Physics | 10 | Active |
| US9651879B2 | Electrophotographic photosensitive member, method of producing the electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Physics | 9 | Active |
| US5137931A | Foamable phenolic resin composition and process for preparation thereof | Chemistry; Metallurgy | 9 | Expired |
| US5008297A | Method for producing phenol resin foams and method of making foamed laminates | Chemistry; Metallurgy | 6 | Expired |
| US10164384B2 | Coaxial connector | Emerging Cross-Sectional Technologies | 4 | Active |
| US5707540A | Fiber treatment chemical and fiber treatment composition | Emerging Cross-Sectional Technologies | 2 | Expired |
| US9864284B2 | Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Physics | 2 | Active |
| US7775474B2 | Wire winding apparatus | Electricity | 2 | Active |
| US9753385B2 | Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Physics | 1 | Active |
| US9564687B2 | Directive antenna apparatus mounted on a board | Electricity | 1 | Active |
| US12326689B2 | Electrophotographic apparatus | Physics | 0 | Active |
| US9811008B2 | Image forming method, process cartridge, and electrophotographic apparatus | Physics | 0 | Active |
| US8927184B2 | Method of producing electrophotographic photosensitive member | Physics | 0 | Active |
| US9581920B2 | Coating film-removing method for cylindrical substrate and manufacturing method for electrophotographic photosensitive member | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.