Kazuhisa Takeda
75Patents
6h-index
80Co-inventors
75Inventor score
Filing activity: Apr 13, 1988 → Sep 8, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7416813B2 | Lithium secondary battery | Emerging Cross-Sectional Technologies | 50 | Active |
| US7452631B2 | Non-aqueous electrolyte secondary battery | Emerging Cross-Sectional Technologies | 37 | Active |
| US7204577B2 | Waste liquid treating device and liquid ejecting apparatus incorporating the same | Performing Operations; Transporting | 21 | Expired |
| US4889723A | Pharmaceutical compositions comprising esters or amides as active ingredients | Human Necessities | 21 | Expired |
| US5110602A | Pharmaceutical compositions comprising esters or amides as active ingredients | Human Necessities | 16 | Expired |
| US7934717B2 | Sheet transporting device with locking mechanism | Emerging Cross-Sectional Technologies | 10 | Active |
| US6286931A | Ink jet recording apparatus | Performing Operations; Transporting | 4 | Expired |
| US5004612A | Pharmaceutical compositions comprising esters or amides as active ingredients | Human Necessities | 4 | Expired |
| US7857535B2 | Method of controlling transport amount, transport device and recording apparatus | Performing Operations; Transporting | 3 | Active |
| US6647213B2 | Image forming apparatus having a mode in which a process unit may be replaced | Physics | 3 | Expired |
| US9348249B2 | Image forming apparatus and image forming and decoloring system | Physics | 2 | Active |
| US6272303A | Charging device for electrophotography | Physics | 2 | Expired |
| US9291950B2 | Apparatus and method for forming an image with a non-decolorizable material and a decolorizable material | Physics | 2 | Active |
| US9821590B2 | Color erasing apparatus, color erasing system and color erasing control method | Electricity | 1 | Active |
| US9519236B2 | Reversibly allochroic toner, method of producing the same, toner cartridge, and image forming apparatus | Physics | 1 | Active |
| US7681969B2 | Liquid ejection apparatus | Performing Operations; Transporting | 1 | Active |
| US9261805B1 | Toner set for printing system and printing system | Physics | 1 | Active |
| US10723148B2 | Recording apparatus | Performing Operations; Transporting | 1 | Active |
| US8755702B2 | Image forming apparatus and toner replenishing method | Physics | 1 | Active |
| US11575803B1 | Image forming apparatus and method correcting density unevenness for each divided region in a main scanning direction | Electricity | 1 | Active |
| US8790857B2 | Toner and process for production thereof | Physics | 1 | Active |
| US9531033B2 | Lithium secondary battery and manufacturing method therefor | Emerging Cross-Sectional Technologies | 1 | Active |
| US7239840B2 | Fixing member by heating and fixing device in image forming apparatus | Physics | 1 | Expired |
| US5585897A | Contact charging device for charging a surface to a given potential and image forming apparatus using the same | Physics | 1 | Expired |
| US11123998B2 | Medium transport device and recording apparatus | Performing Operations; Transporting | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.