Yasuhiro Numata
26Patents
14h-index
35Co-inventors
81Inventor score
Filing activity: Jan 17, 1992 → Nov 9, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5625384A | Ink jet recording apparatus and method using replaceable recording heads | Performing Operations; Transporting | 69 | Expired |
| US5617122A | Recording apparatus and method for controlling recording head driving timing | Physics | 56 | Expired |
| US5870114A | Image recording apparatus with improved conveying system for recording medium | Performing Operations; Transporting | 46 | Expired |
| US5894314A | Ink jet recording apparatus using thermal energy | Performing Operations; Transporting | 39 | Expired |
| US6457794B1 | Ink jet recording method and apparatus for controlling recording signal parameters | Performing Operations; Transporting | 37 | Expired |
| US5475404A | Ink jet recording apparatus with controlled recovery operation | Performing Operations; Transporting | 37 | Expired |
| US5861895A | Ink jet recording method and apparatus controlling driving signals in accordance with head temperature | Performing Operations; Transporting | 35 | Expired |
| US5956052A | Image forming apparatus with means for correcting image density non-uniformity | Physics | 33 | Expired |
| US6086185A | Ink jet recording method and ink jet recording apparatus | Performing Operations; Transporting | 20 | Expired |
| US6116710A | Ink jet recording method and apparatus using thermal energy | Performing Operations; Transporting | 17 | Expired |
| US6231155A | Image forming apparatus | Physics | 16 | Expired |
| US5717443A | Ink jet recording apparatus including an ink recovery system operated in correlation with the ink sheet feeding system | Performing Operations; Transporting | 14 | Expired |
| US6109724A | Ink jet recording apparatus | Performing Operations; Transporting | 14 | Expired |
| US6095703A | Image recording apparatus utilizing serial recording head and sheet feed and image recording method therefor | Performing Operations; Transporting | 14 | Expired |
| US6126266A | Ink jet recording apparatus and method using replaceable recording heads | Performing Operations; Transporting | 12 | Expired |
| US6595515B2 | Sheet conveying device with increased electric voltage | Performing Operations; Transporting | 9 | Expired |
| US6565184B1 | Ink jet recording apparatus with recovery based on manufacturing time | Performing Operations; Transporting | 9 | Expired |
| US6310636A | Ink jet recording method and apparatus for driving recording head based on head temperature | Performing Operations; Transporting | 9 | Expired |
| US6164761A | Sheet adhering conveying apparatus and recording apparatus | Performing Operations; Transporting | 8 | Expired |
| US6106097A | Ink jet recording apparatus having an exchangeable ink jet head cartridge mountable thereon and recovery method of said cartridge | Performing Operations; Transporting | 6 | Expired |
| US6257701A | Ink jet recording apparatus having an exchangeable ink jet head cartridge mountable thereon and recovery method of said cartridge | Performing Operations; Transporting | 4 | Expired |
| US6860579B2 | Ink jet recording apparatus and method using replaceable recording heads | Performing Operations; Transporting | 1 | Expired |
| US5984453A | Recording apparatus and method by time-division drive | Performing Operations; Transporting | 0 | Expired |
| US7500739B2 | Ink jet recording apparatus and method using replaceable recording heads | Performing Operations; Transporting | 0 | Expired |
| US11294606B2 | Print system including a learned model to select a printer | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.