Easy To Use Patents Search & Patent Lawyer Directory

At Patents you can conduct a Patent Search, File a Patent Application, find a Patent Attorney, or search available technology through our Patent Exchange. Patents are available using simple keyword or date criteria. If you are looking to hire a patent attorney, you've come to the right place. Protect your idea and hire a patent lawyer.

Searching: ricoh





Search by keyword, patent number, inventor, assignee, city or state:




Patent # Description
US-7,890,039 Sheet separation device, sheet conveyance apparatus, and image forming system
A sheet separation member having a separation pick includes a substrate made of hard material, which is swingable around a support shaft connected to a stable...
US-7,890,033 Developing device, process unit, and image forming apparatus which prevents ingrass of the developing agent in...
A developing device that prevents the formation of agglomerated masses of developing agent in the bottom of the developing agent housing chamber near the...
US-7,890,031 Developing device and process cartridge used in image forming apparatus
The invention provides a developing device, a process cartridge and an image forming apparatus that allow preventing abrupt variations in toner charge on a...
US-7,890,030 Magnetic roller, developer carrier, developing device, process cartridge, and image forming apparatus
A magnetic roller includes a cylindrical magnetic field generation part (140), a cylindrical support part (143) that contacts both of the edges of the magnetic...
US-7,890,028 Developing device and image forming apparatus comprising the same
A developing device and image forming apparatus that can satisfy stability over time in relation to amount of developer carried, and prevent developer retention,...
US-7,890,017 Fixing device and image forming apparatus
A fixing device includes a pair of first frames that support an axis of each of a fixing roller and a pressing roller and a pair of second frames arranged in...
US-7,890,007 Image formation apparatus, an image formation method, an image formation program, and a computer-readable...
An image formation apparatus, an image formation method, an image formation program, and a computer-readable recording medium are provided, a rotation of the...
US-7,890,001 Image forming apparatus and output setting method of consumed status of consumable items of the image forming...
An image forming apparatus including a plurality of consumable items. The apparatus includes a consumption status detecting unit that detects a respective...
US-7,889,816 Clock and data recovery circuit and communications apparatus including the clock and data recovery circuit
A clock and data recovery circuit that includes a unit to output N-phase clocks each of which has a phase shifted from the others by a time T2 obtained by...
US-7,889,409 Optical scanning device and image forming apparatus using the same
An optical scanning device including a light beam emission unit configured to emit a light beam, a main scanning line deflection unit configured to deflect the...
US-7,889,405 Image processing apparatus and computer program product for overlaying and displaying images in a stack
A finished-image generating unit generates a finished image showing a result of a process performed on a target image. A transparent-finished-image generating...
US-7,889,404 Image reading device, image forming apparatus, and reading-unit install method
An adjusting unit adjusts an output level of digital data converted from image data, based on a correction coefficient for each color. A color correction unit...
US-7,889,393 Document reading apparatus and an image formation apparatus therewith
A document reading apparatus and an image formation apparatus are disclosed. The document reading apparatus detects a locally patent image pixel in a main...
US-7,889,385 Digital image printing system, control method therefor, printing device, control method therefor, and computer...
In a digital image printing system, an external device capable of storing digital image data, and a printing apparatus capable of printing the digital image data...
US-7,889,362 Image forming apparatus for printing images properly arranged relative to index tab
An image forming apparatus prints images on print sheets, and insets tab-index sheets between the printed print sheets. The image forming apparatus includes an...
US-7,889,344 Transmitted-light-intensity measuring device, medium identifying device, medium conveying device, and image...
A device for measuring intensity of a transmitted light, includes a first measuring unit that measures a first intensity of a light transmitted through a medium...
US-7,889,264 End-to-end design of superresolution electro-optic imaging systems
A superresolution electro-optic imaging system operates in a manner that takes into account the different subsystems. For example, rather than designing the...
US-7,889,240 Digital camera which detects a connection to an external device
An electronic camera and method of operating an electronic camera which detects whether an external device such as a personal computer is properly connected to...
US-7,889,224 Optical path switching device, optical scanning device, and image forming apparatus
A disclosed optical path switching device includes a polarization bistable VCSEL that emits a beam having a rising polarization plane, a laser light source...
US-7,889,153 Projection-type display device and software program
A projection surface on which a predetermined projection image is projected is provided; a writing surface on which an image can be drawn directly in a...
US-7,888,146 Method for assembling array-type semiconductor laser device
According to an aspect of the present invention, there is provided a method for assembling a semiconductor laser device, including: preparing a laser chip...
US-7,887,151 Method for adjusting uniformity of liquid ejection from a liquid ejection head
An image forming apparatus having a liquid ejection head including a plurality of nozzles for ejecting droplets and a plurality of piezoelectric elements for...
US-7,887,051 Stack alignment device, sheet discharge device and image forming apparatus
A catch tray for stacking sheets discharged from an apparatus that includes a first sheet-stacking area and a second sheet-stacking area. The tray further...
US-7,886,268 Information processing apparatus and computer product
An activation program first activates a basic program and a first functional program, which realizes a specific function, among a plurality of functional...
US-7,886,228 Method and apparatus for storytelling with digital photographs
A method and system for digital story authoring, viewing and storing is described. A display showing an imported story track, an authored story track, and a...
US-7,885,955 Shared document annotation
A Mixed Media Reality (MMR) system and associated techniques are disclosed. The MMR system provides mechanisms for forming a mixed media document that includes...
US-7,885,595 Lubricant applicator, process cartridge including same, and image forming apparatus including same
A lubricant applicator, which is included in a process cartridge, and an image forming apparatus, includes a fur brush disposed downstream from a cleaning member...
US-7,885,591 Fixing device including a heating unit and a pressurizing unit that includes a rotatable endless member and...
A low-heat loss, belt nip-type fixing device achieves good recording medium separation performance without increasing the size of the device, prevents image...
US-7,885,590 Image forming apparatus and fixing device
An image forming apparatus includes an image carrier to carry a toner image and a fixing device to fix the toner image transferred from the image carrier onto a...
US-7,885,588 Transfer assembly and image forming apparatus including same
An image forming apparatus includes a plurality of image carriers and a transfer assembly. The transfer assembly includes a plurality of transferees, a...
US-7,885,587 Image forming apparatus with color shift correction suppressing periodic fluctuations of a surface moving speed...
An image forming apparatus includes a control unit to control a latent image support with a target rate; a first unit to detect patterns; plural parts to be...
US-7,885,581 Developer transferring device, developing device, process unit, and image forming apparatus
An image forming apparatus capable of reducing the number of toner concentration detection errors caused by variation in the volume of a toner includes a reverse...
US-7,885,578 Grid electrode, image forming apparatus including same, and process cartridge including same
A grid electrode, which can be included in a scorotron charger for an image forming apparatus or a process cartridge, includes a thin plate member containing...
US-7,885,577 Rotation transmission device and image forming apparatus
A rotation transmission device including a driving member configured to input a driving force; a rotatable member; and a joint configured to transmit the driving...
US-7,885,571 Image forming apparatus, fixing unit, and heating system capable of heating at increased speed with reduced power
An image forming apparatus includes an image forming mechanism configured to form a toner image on a recording medium with a toner according to image data and a...
US-7,885,569 Heater, fixing unit and image forming apparatus operable with a main and auxiliary power supply unit
A heater operable with main and auxiliary power supply units. A controller selects a first mode to permit discharge of the auxiliary power supply unit when a...
US-7,885,566 Toner consumption-calculating apparatus, image forming apparatus, and toner consumption calculating method
A toner consumption-calculating apparatus includes a printed portion area-detecting unit that detects an area of a printed portion of image data of a latent...
US-7,885,556 Image forming apparatus for correcting a toner density target value
In an image forming apparatus a developing device develops an electrostatic latent image on an image carrier with a developer that contains toner to obtain a...
US-7,885,551 Terminal apparatus, a consumables residual quantity display program, and a recording medium
A terminal apparatus, a consumables residual quantity display program, and a recording medium are disclosed. The terminal apparatus, which is connected to a...
US-7,885,523 Image pickup apparatus
An image pickup apparatus includes a gyro sensor 1240 that detects camera shakes, a feed forward value is calculated by multiplying a first coefficient c1 to an...
US-7,885,155 Data readout method, data readout device, and optical disk
A data readout method is disclosed that is able to read data from an optical disk capable of super resolution readout with high accuracy. The data readout method...
US-7,885,149 Disk carrier device and disk drive
A disk carrier device for carrying an optical disk having a plate in the center, which plate is capable of being attracted by a magnetic force, is disclosed. The...
US-7,885,048 Semiconductor device and an electronic apparatus incorporating the semiconductor device
A semiconductor device and an electronic apparatus incorporating the semiconductor device are disclosed. The semiconductor device includesa power circuit that...
US-7,884,979 Imaging lens, image reader using the lens, and imaging apparatus using the image reader
An imaging lens comprises a first, a second, a third, and a fourth lens group from an object toward an image. The first lens group includes a first lens that is...
US-7,884,973 Image reading device, image forming apparatus, image reading method, and computer product
A white-level correcting unit makes an image reading unit read a white reference board, and sets a parameter corresponding to a value read by the image reading...
US-7,884,955 Techniques for performing actions based upon physical locations of paper documents
Techniques for performing one or more actions based upon physical locations of one or more paper documents. According to an embodiment of the present invention,...
US-7,884,866 Imaging apparatus and imaging method
First YUV data produced from a pixel output in which one RAW-RGB data is read out from an SDRAM and is compensated in a dynamic range expansion compensating...
US-7,884,840 Image forming method and apparatus for transfer and fixing image with one process
An image forming method and apparatus includes a first image carrying member, a first transfix unit, a second image carrying member, and a second transfix unit....
US-7,884,587 Power supply device and image forming apparatus
A charging unit charges a capacitor that is configured to be charged and discharged to drive a load. A switching unit switches on and off between the capacitor...
US-7,884,584 Switching power supply circuit
A switching power supply circuit for generating an output voltage at an output node based on an input voltage at an input node includes a reference voltage...
← Previous | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 | Next →

File A Patent Application

  • Protect your idea -- Don't let someone else file first. Learn more.

  • 3 Easy Steps -- Complete Form, application Review, and File. See our process.

  • Attorney Review -- Have your application reviewed by a Patent Attorney. See what's included.