Akiko Ito
23Patents
11h-index
25Co-inventors
75Inventor score
Filing activity: Aug 25, 1975 → Nov 30, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7783240B2 | Fixing device, image forming apparatus including the fixing device, and fixing method | Physics | 51 | Active |
| US7801457B2 | Fixing device, image forming apparatus including the fixing device, and fixing method | Physics | 49 | Active |
| US7796933B2 | Fixing device using electromagnetic induction heating and image forming apparatus including same | Physics | 45 | Active |
| US8014711B2 | Fixing unit having enhanced temperature control and image forming apparatus using the same | Physics | 31 | Active |
| US7885590B2 | Image forming apparatus and fixing device | Physics | 26 | Active |
| US5814631A | Quinazoline derivatives and applications thereof | Chemistry; Metallurgy | 25 | Expired |
| US7206631B2 | Sleepiness level detection device | Human Necessities | 23 | Expired |
| US7778581B2 | Fixing unit having enhanced heating efficiency and image forming apparatus using the same | Physics | 23 | Active |
| US7817952B2 | Fixer and image forming apparatus including the same | Physics | 22 | Active |
| US3990096A | Semiconductor luminescent device | Electricity | 19 | Expired |
| US5958228A | Method of and an apparatus for producing a mineral water | Chemistry; Metallurgy | 13 | Expired |
| US8112023B2 | Image forming apparatus and fixing device | Physics | 7 | Active |
| US7916245B2 | Display device | Physics | 6 | Active |
| US11021401B2 | Zirconia sintered body and method for manufacturing the same | Chemistry; Metallurgy | 2 | Active |
| US7486924B2 | Image forming apparatus including fixer having fixing roller and methods of manufacturing the same | Physics | 2 | Active |
| US7990499B2 | Display device | Physics | 2 | Active |
| US11548825B2 | Zirconia layered body | Chemistry; Metallurgy | 1 | Active |
| US6867214B1 | Quinazoline derivatives and pharmaceutical applications thereof | Chemistry; Metallurgy | 1 | Expired |
| US11746055B2 | Zirconia sintered body and production method thereof | Chemistry; Metallurgy | 0 | Active |
| US7169951B2 | Quinazoline derivatives and pharmaceutical applications thereof | Chemistry; Metallurgy | 0 | Expired |
| US11479511B2 | Zirconia sintered body and production method thereof | Chemistry; Metallurgy | 0 | Active |
| US11964916B2 | Zirconia layered body | Chemistry; Metallurgy | 0 | Active |
| US11746054B2 | Zirconia sintered body and method for manufacturing the same | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.