Kazumi Ishima
20Patents
10h-index
13Co-inventors
72Inventor score
Filing activity: May 11, 1978 → Aug 14, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4595948A | Multicolor ink jet recording apparatus having means for preventing blurring of ink | Electricity | 54 | Expired |
| US4604631A | Control system and method for charge control ink jet printer | Performing Operations; Transporting | 29 | Expired |
| US4467183A | Liquid temperature control apparatus comprising initial temperature dependent high power heater drive | Physics | 28 | Expired |
| US4459469A | Ink temperature control apparatus for ink jet printing apparatus | Physics | 25 | Expired |
| US4642653A | Multi-tone recording method for ink jet printer | Performing Operations; Transporting | 23 | Expired |
| US4590362A | Drive circuit for temperature control heater in ink jet printer | Physics | 16 | Expired |
| US4598299A | Deflection control ink jet printing apparatus | Performing Operations; Transporting | 14 | Expired |
| US4494178A | Power supply circuit | Electricity | 12 | Expired |
| US4564749A | Heater drive circuit for controlling ink temperature in ink jet printer | Physics | 11 | Expired |
| US5115327A | Gain control circuit for use in shading compensation circuit | Electricity | 10 | Expired |
| US4989100A | Image reader for an image recording apparatus | Electricity | 9 | Expired |
| US4158848A | Electrostatic recording multi-stylus electrode device | Physics | 8 | Expired |
| US4165514A | Electrostatic recording multi-stylus electrode device | Performing Operations; Transporting | 7 | Expired |
| US6118468A | Image recording apparatus | Performing Operations; Transporting | 3 | Expired |
| US4555713A | Power source device for ink jet printer | Performing Operations; Transporting | 3 | Expired |
| US7432946B2 | Image forming apparatus | Electricity | 2 | Active |
| US7484827B2 | Image forming method and apparatus, and a recording medium storing a program for performing an image forming method | Electricity | 2 | Active |
| US5101281A | Automatic gain control circuit of image reading apparatus | Electricity | 1 | Expired |
| US7880758B2 | Image forming apparatus | Electricity | 0 | Active |
| US7961208B2 | Image forming apparatus, image forming method, and image forming program product | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.