| Class Number |
Class Name |
No. of Patents |
| 347/900 |
Data processing for electrostatic recording |
133 |
| 347/111 |
Electric marking apparatus or processes |
46 |
| 347/159 |
By electrical discharge (e.g., spark) |
32 |
| 347/161 |
Electrical discharge burning (e.g., oxidation or electroerosion) |
39 |
| 347/162 |
Including driving circuitry |
14 |
| 347/160 |
Rotary head support |
20 |
| 347/163 |
By electrochemical |
16 |
| 347/170 |
Housing or mounting |
23 |
| 347/166 |
Specific head |
11 |
| 347/169 |
Helix drum |
10 |
| 347/168 |
Including driving circuitry |
7 |
| 347/167 |
Including motor for driving head |
4 |
| 347/164 |
With record receiver or handling means therefor |
32 |
| 347/165 |
Including treating means |
9 |
| 347/112 |
Electrostatic |
197 |
| 347/120 |
By information carrying flow of invisible charged particles |
72 |
| 347/121 |
Electron beam generator with air tight envelope |
38 |
| 347/122 |
Including latent image generation using luminescent material |
39 |
| 347/128 |
Including driving circuitry |
69 |
| 347/123 |
Specific ionographic head |
90 |
| 347/125 |
Fluid assisted charged particle flow or generation |
55 |
| 347/126 |
Modified or specific fluid (e.g., heated, dehumidified, specified gas) |
24 |
| 347/124 |
Including simultaneous development |
38 |
| 347/127 |
Laminated head including charged particle generation layer |
55 |
| 347/114 |
Electrothermographic |
33 |
| 347/152 |
Housing or mounting |
102 |
| 347/115 |
Multicolor |
268 |
| 347/117 |
Plural heads |
40 |
| 347/118 |
Using light as exposure means |
127 |
| 347/116 |
Registration |
378 |
| 347/119 |
Single head using light as exposure means |
107 |
| 347/129 |
Photo scanning |
307 |
| 347/132 |
Beam generator driving means |
155 |
| 347/133 |
Having feedback or environmental control |
117 |
| 347/140 |
Developer or charger mechanism |
198 |
| 347/131 |
Dot density or dot size control (e.g., halftone) |
288 |
| 347/138 |
Housing or mounting |
155 |
| 347/130 |
Light emitting diodes |
216 |
| 347/134 |
Optical elements interposed between record receiver and beam generator |
120 |
| 347/137 |
Lens |
64 |
| 347/135 |
Light intensity modulation means |
69 |
| 347/136 |
Shutter device |
66 |
| 347/139 |
Record receiver or conveyor means therefor |
193 |
| 347/141 |
Specific electrostatic head |
122 |
| 347/146 |
Character wheel |
6 |
| 347/150 |
Composition |
23 |
| 347/148 |
Printed circuit or wiring |
55 |
| 347/142 |
Signal switching |
57 |
| 347/143 |
Amplitude modulation |
16 |
| 347/145 |
Block driving |
42 |
| 347/144 |
Time based modulation (e.g., pulse width, duty cycle, rise time) |
34 |
| 347/149 |
Spacing or pressure |
51 |
| 347/147 |
Specific head tip |
56 |
| 347/151 |
Using recording head to selectively charge toner |
52 |
| 347/113 |
Thermoplastic |
37 |
| 347/153 |
With medium for receiving an image or feeding means therefor |
184 |
| 347/154 |
Endless web or belt for the latent image |
94 |
| 347/157 |
Including cutter means |
23 |
| 347/158 |
Including toner delivery means |
131 |
| 347/155 |
Pre or post treatment |
44 |
| 347/156 |
Fixing or fusing |
89 |
| 347/1 |
Ink jet |
222 |
| 347/2 |
Combined |
407 |
| 347/3 |
Reproduction (e.g., facsimile, copier, etc.) |
335 |
| 347/4 |
With conveyed object |
188 |
| 347/5 |
Controller |
512 |
| 347/19 |
Measuring and testing (e.g., diagnostics) |
2092 |
| 347/9 |
Of ejector |
683 |
| 347/12 |
Array |
581 |
| 347/13 |
Full-line array |
250 |
| 347/15 |
Creating plural tones |
923 |
| 347/10 |
Drive waveform |
458 |
| 347/11 |
Plural pulses |
374 |
| 347/14 |
Responsive to condition |
1003 |
| 347/6 |
Of fluid (e.g., ink flow rate, viscosity, etc.) |
170 |
| 347/7 |
Fluid content (e.g., moisture or solvent content, ink refilling, liquid level) |
595 |
| 347/16 |
Of medium |
401 |
| 347/8 |
Of spacing between fluid ejector and receiving medium |
256 |
| 347/17 |
Of temperature or pressure of device or component thereof |
379 |
| 347/18 |
With particular cooling means |
117 |
| 347/20 |
Ejector mechanism (i.e., print head) |
581 |
| 347/40 |
Array of ejectors |
876 |
| 347/43 |
Color type |
1048 |
| 347/42 |
Full-line type |
608 |
| 347/41 |
Interlace |
512 |
| 347/73 |
Continuous stream (includes dispersion) |
85 |
| 347/83 |
With aerosol formation |
37 |
| 347/74 |
With individual drop generation and/or control |
206 |
| 347/76 |
Drop charge means |
164 |
| 347/78 |
Drop correction |
68 |
| 347/79 |
Charge compensation |
24 |
| 347/81 |
Drop sensors |
67 |
| 347/80 |
Synchronization of drop separation and charge time |
42 |
| 347/77 |
Drop deflection means |
181 |
| 347/75 |
Drop generation means |
159 |
| 347/82 |
With stream deflection |
74 |
| 347/44 |
Discharge means |
329 |
| 347/46 |
Free surface |
148 |
| 347/47 |
Nozzles |
811 |
| 347/45 |
Surface treated |
278 |
| 347/54 |
Drop-on-demand |
992 |
| 347/55 |
With electric field ejection (applied to fluid) |
726 |
| 347/68 |
With piezoelectric force ejection |
995 |
| 347/71 |
Layers, plates |
575 |
| 347/72 |
Plural piezoelectric laminate |
181 |
| 347/69 |
Shear mode |
141 |
| 347/70 |
With vibratory plate |
505 |
| 347/56 |
With thermal force ejection |
465 |
| 347/63 |
Composite ejector |
475 |
| 347/65 |
Flow path |
925 |
| 347/64 |
Protective |
189 |
| 347/57 |
Drive signal application |
269 |
| 347/58 |
Wiring |
264 |
| 347/59 |
Integrated |
197 |
| 347/66 |
Head separate from fluid supply |
46 |
| 347/60 |
Preheat |
120 |
| 347/61 |
Thermal force generators |
189 |
| 347/62 |
Resistor specifics |
290 |
| 347/67 |
With additional feature |
168 |
| 347/50 |
Electrical connector means |
521 |
| 347/52 |
Electron beam acting on fluid |
7 |
| 347/53 |
Magnetic |
62 |
| 347/49 |
Modular |
557 |
| 347/51 |
Optical energy acting on fluid |
63 |
| 347/21 |
With additional fluid |
185 |
| 347/22 |
With cleaning or protector |
336 |
| 347/24 |
For color |
79 |
| 347/25 |
Gas |
73 |
| 347/26 |
Heat |
28 |
| 347/34 |
Mist or dust removal |
101 |
| 347/29 |
Nozzle cap, cover, or protection |
737 |
| 347/31 |
Absorber |
114 |
| 347/32 |
Movement |
458 |
| 347/30 |
Suction |
570 |
| 347/35 |
Purging without a cap |
308 |
| 347/23 |
Responsive to condition |
485 |
| 347/28 |
Solvent |
186 |
| 347/27 |
Vibration |
48 |
| 347/36 |
Waste storage |
234 |
| 347/33 |
Wiping |
647 |
| 347/37 |
With means to scan fluid ejector relative to the receiving medium |
657 |
| 347/39 |
With oscillatory motion |
46 |
| 347/38 |
With rotary motion |
46 |
| 347/48 |
With plural transducers |
223 |
| 347/84 |
Fluid or fluid source handling means |
296 |
| 347/95 |
Fluid (e.g., fluid specifics) |
268 |
| 347/98 |
Colorless |
121 |
| 347/97 |
Gas |
7 |
| 347/99 |
Hot-melt (e.g., phase-change) |
191 |
| 347/100 |
Ink |
1685 |
| 347/96 |
Reactive |
279 |
| 347/85 |
Fluid supply system |
1393 |
| 347/86 |
Cartridge |
1992 |
| 347/87 |
With integral ejector |
650 |
| 347/88 |
For hot-melt fluid (e.g., phase-change) |
338 |
| 347/89 |
With recirculation |
239 |
| 347/90 |
Collector`s or catcher`s specifics |
100 |
| 347/91 |
With carrier |
54 |
| 347/93 |
With fluid treatment (e.g., filtering) |
231 |
| 347/94 |
With means to reduce vibration in the fluid (damping) |
261 |
| 347/92 |
With means to remove and/or accommodate bubbles in the fluid |
275 |
| 347/108 |
Housing |
338 |
| 347/109 |
Hand-held |
164 |
| 347/101 |
Medium and processing means |
774 |
| 347/102 |
Drying or curing |
573 |
| 347/104 |
Physical handling |
1098 |
| 347/105 |
Receiving medium |
927 |
| 347/106 |
Physical characteristics |
362 |
| 347/103 |
Transfer of fluid to another record medium |
269 |
| 347/107 |
With unique pattern |
172 |
| 347/224 |
Light or beam marking apparatus or processes |
319 |
| 347/225 |
Scan of light |
166 |
| 347/226 |
Cathode ray device |
71 |
| 347/231 |
Having deflecting means |
26 |
| 347/228 |
Having developing means |
48 |
| 347/230 |
Having optical means interposed between the screen of the cathode ray device and the record receiver |
31 |
| 347/229 |
Synchronization of light with record receiver |
37 |
| 347/227 |
With record receiver in an evacuated enclosure |
11 |
| 347/247 |
Driving circuitry |
332 |
| 347/246 |
Feedback of light for intensity control |
180 |
| 347/263 |
Housing or mounting |
141 |
| 347/232 |
Multicolor |
359 |
| 347/233 |
Plural beam scan |
190 |
| 347/237 |
Driving circuitry |
376 |
| 347/236 |
Feed back of light for intensity control |
143 |
| 347/245 |
Housing or mounting |
87 |
| 347/235 |
Scan synchronization (e.g., start-of-scan, end-of-scan) |
232 |
| 347/239 |
Specific light modulator |
280 |
| 347/238 |
Specific light source (e.g., leds assembly) |
400 |
| 347/241 |
Specific optical structure |
391 |
| 347/242 |
Having mounting or supporting means |
150 |
| 347/243 |
Including deflector |
268 |
| 347/244 |
Specific lens |
268 |
| 347/234 |
Synchronization of light with medium |
243 |
| 347/240 |
Tone marking |
226 |
| 347/250 |
Scan synchronization (e.g., start-of-scan, end-of-scan) |
275 |
| 347/255 |
Specific light modulator |
236 |
| 347/256 |
Specific optical structure |
310 |
| 347/260 |
Having deflector |
150 |
| 347/261 |
Polygon |
204 |
| 347/258 |
Having lens |
217 |
| 347/259 |
Including deflector |
246 |
| 347/257 |
Having mounting or supporting means |
188 |
| 347/248 |
Synchronization of light with medium |
283 |
| 347/249 |
By clock deviation |
87 |
| 347/251 |
Tone marking |
219 |
| 347/252 |
By adjusting pulse width of light beam |
137 |
| 347/254 |
By varying dotting density |
87 |
| 347/253 |
By varying intensity of light beam |
122 |
| 347/262 |
With record receiver or handling means therefor |
353 |
| 347/264 |
With record receiver or handling means therefor |
404 |
| 347/110 |
Marking devices |
12 |
| 347/171 |
Thermal marking apparatus or processes |
512 |
| 347/180 |
Block driving |
93 |
| 347/182 |
Sequentially |
68 |
| 347/181 |
Simultaneously |
22 |
| 347/188 |
Density control |
179 |
| 347/195 |
By history of recording elements |
94 |
| 347/196 |
Using pulse width modulation |
34 |
| 347/190 |
By number of heated recording elements |
52 |
| 347/193 |
By transfer material or record receiver |
53 |
| 347/192 |
By variation in power supply |
54 |
| 347/189 |
In accordance with ambient temperature |
33 |
| 347/194 |
In accordance with temperature of the recording means |
109 |
| 347/191 |
In accordance with thermal output characteristic of the recording means |
63 |
| 347/199 |
Electroconductive recording means |
90 |
| 347/183 |
Gradational recording |
152 |
| 347/184 |
Look up table |
75 |
| 347/213 |
Having an intermediate medium for transferring ink |
99 |
| 347/211 |
Having driving circuitry for recording means |
206 |
| 347/222 |
Housing or mounting |
186 |
| 347/223 |
Including cooling device |
50 |
| 347/214 |
Ink cassette or cartridge |
196 |
| 347/172 |
Multicolor |
228 |
| 347/173 |
Single pass |
56 |
| 347/174 |
Single-head type (e.g., multipass) |
36 |
| 347/175 |
Having multilayers colored transfer material |
82 |
| 347/176 |
Having single layer colored transfer material |
147 |
| 347/177 |
Including sensor means |
44 |
| 347/178 |
For detecting color |
45 |
| 347/220 |
Platen or engaging means therefor |
141 |
| 347/212 |
Pre or post image recording treatment |
131 |
| 347/185 |
Preheating |
33 |
| 347/186 |
Recording means |
66 |
| 347/187 |
Transfer material or recording medium |
50 |
| 347/215 |
Record receiver and transfer medium feeding or driving means |
192 |
| 347/216 |
Including separating means |
53 |
| 347/218 |
Record receiver driving means |
293 |
| 347/219 |
Including tensioning means |
45 |
| 347/197 |
Recording means engaging or holding means |
267 |
| 347/198 |
Adjustable |
93 |
| 347/200 |
Specific resistance recording element type |
130 |
| 347/201 |
Edge or end face type |
37 |
| 347/202 |
Glazed layer |
68 |
| 347/207 |
Having auxiliary means for conducting heat |
14 |
| 347/205 |
Head substrate |
71 |
| 347/204 |
Heat resistance layer |
79 |
| 347/206 |
Heating resistive elements |
65 |
| 347/203 |
Protective layer |
106 |
| 347/208 |
Specific conductor means (e.g., electrode, conducting pattern, etc.) |
135 |
| 347/209 |
With means for driving or supplying current to the resistive heating elements |
93 |
| 347/210 |
Including switching means |
56 |
| 347/179 |
With correction or erasing means |
60 |
| 347/221 |
With recording medium |
134 |
| 347/217 |
With transfer medium or driving means therefor |
287 |
