Naoko Ito
33Patents
9h-index
47Co-inventors
75Inventor score
Filing activity: May 8, 1998 → Oct 5, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7250226B2 | Phosphorescent compound, a phosphorescent composition and an organic light-emitting device | Emerging Cross-Sectional Technologies | 819 | Expired |
| US7396598B2 | Light emitting material and organic light-emitting device | Emerging Cross-Sectional Technologies | 806 | Expired |
| US7752273B2 | Group communication system based on presence information and client device | Physics | 55 | Active |
| US7224973B2 | Communication agent apparatus | Electricity | 19 | Expired |
| US7763365B2 | Light emitting material and organic light-emitting device | Emerging Cross-Sectional Technologies | 17 | Active |
| US7844667B2 | Presence system and information processing equipment, dynamic buddy list generation method in presence system, and presence notification destination controlling method and its program for use with presence system | Electricity | 16 | Active |
| US7814120B2 | List management server for managing updating of list by third-party terminal, list management system, list managing method, and program | Electricity | 14 | Active |
| US6848079B2 | Document conversion using an intermediate computer which retrieves and stores position information on document data | Emerging Cross-Sectional Technologies | 13 | Expired |
| US11011200B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium | Chemistry; Metallurgy | 9 | Active |
| US11279664B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium | Chemistry; Metallurgy | 7 | Active |
| US8242169B2 | Emulsion composition | Human Necessities | 5 | Active |
| US9076010B2 | Anonymization device | Electricity | 5 | Active |
| US9051653B2 | Rolling bearing | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US7223483B2 | Light-emitting material and organic light-emitting device | Electricity | 3 | Expired |
| US7953811B2 | Presence system and information processing equipment, dynamic buddy list generation method in presence system, and presence notification destination controlling method and its program for use with presence system | Electricity | 3 | Active |
| US11332686B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium and magnetic recording medium | Chemistry; Metallurgy | 3 | Active |
| US7953821B2 | Presence information providing system, and method and server thereof | Electricity | 2 | Active |
| US11292979B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium and magnetic recording medium | Chemistry; Metallurgy | 2 | Active |
| US7736757B2 | Light emitting material and organic light-emitting device | Emerging Cross-Sectional Technologies | 1 | Active |
| US9327255B2 | Microchemical analysis device, a micro mixing device, and a microchemical analysis system comprising the same | Performing Operations; Transporting | 1 | Active |
| US11555005B2 | Fluorine-containing ether compound, lubricant for magnetic recording medium, and magnetic recording medium | Chemistry; Metallurgy | 1 | Active |
| US8728621B2 | Hard multilayer film formed body and method for manufacturing same | Emerging Cross-Sectional Technologies | 1 | Active |
| US8458272B2 | Presence system and information processing equipment, dynamic buddy list generation method in presence system, and presence notification destination controlling method and its program for use with presence system | Electricity | 0 | Active |
| US7671852B2 | Display device, display method, and computer product | Emerging Cross-Sectional Technologies | 0 | Active |
| US11160744B2 | Gel composition | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.