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-7,939,235 Image formation method
A toner includes a polyol-based resin having multiple hydroxyl groups in a molecular chain thereof in which a ratio of epoxy group to hydroxyl group is from...
US-7,938,545 Projection optical system, magnification projection optical system, magnification projection apparatus, and...
A projection optical system for use in an image projection apparatus illuminating a lightbulb forming an image in accordance with a modulating signal with...
US-7,938,527 Ink, ink cartridge, ink jet recording apparatus, and ink jet recording method
To provide an ink jet recording method including: performing image recording on a recording medium to obtain an ink adhesion quantity of 15 g/m.sup.2 or less of...
US-7,938,392 Medium feed control in an image forming apparatus
A method of controlling medium feeding in an image forming apparatus includes an image forming step of forming an image on a medium in response to an image...
US-7,937,983 Curved surface forming apparatus, optical scanning apparatus, and image forming apparatus
A curved surface forming apparatus includes a first member to be curved; a second member which is placed with a distance from the first member and holds the...
US-RE42,334 Smoothing circuit employing charging circuit intermittently charging when input voltage is higher relatively...
A smoothing circuit for realizing the miniaturization and the increase of integration scale of a circuit and for easily varying attack time and release time....
US-7,937,033 Separating plate, fixing device having the separating plate with an edge part that abuts with the fixing...
A fixing device (55) including a fixing member (6), a pressure member (7) forcibly contacting with the fixing member, and a separating plate (1) for separating...
US-7,937,028 Image forming apparatuses having specialized toner structures and materials
Disclosed is an image forming apparatus including a toner feed unit used in a developing device and provided near a top surface of a body casing. The toner feed...
US-7,937,027 Developing device and image forming apparatus
A developing device includes a rotator that rotates around a shaft, and a bearing element that supports the shaft to a housing. A sliding element formed of a...
US-7,937,025 Scorotron corona charger, process cartridge, and image forming apparatus
A scorotron corona charger including a grid electrode is provided. A layer including a zeolite, a resistance controlling agent, and a binder is formed on the...
US-7,937,015 Image forming apparatus having a development device mixing and conveying developer
An image forming apparatus includes an image carrying member carrying a latent image and a development device disposed along a surface of the image carrying...
US-7,937,012 Angle adjusting device and image forming apparatus
An angle adjusting device configured to support an operations panel so that up and down rotation of the operations panel against an apparatus main body can be...
US-7,937,007 Image forming apparatus and image forming method of effectively detecting a speed deviation pattern of the...
An image forming apparatus includes a plurality of image bearing members, each of which is configured to bear a portion of a pattern image including a plurality...
US-7,936,989 Image capturing apparatus
An image capturing apparatus includes an optical unit for forming an image of a subject, a first light extinction unit present on an optical axis of the optical...
US-7,936,571 Protection circuit module for secondary battery
A protection circuit module for a secondary battery including a wiring substrate including two battery-side external connection terminals provided on a top...
US-7,936,498 Display element, image display device, and image display system
A display element includes a hollow structure. The hollow structure includes plural cells disposed in a plane, each having an opening in a first wall of the...
US-7,936,494 Optical scanning device and image forming apparatus
An optical scanning device includes a light source, a deflector, and an optical system including an elongated optical element that focuses deflected luminous...
US-7,936,493 Dot position correcting apparatus, optical scanning apparatus, imaging apparatus, and color imaging apparatus
An optical scanning apparatus that includes a light source unit having plural main light sources that are two-dimensionally arranged in the main scanning...
US-7,936,492 Light source device, optical scanning device, and image forming apparatus
An optical splitting member splits a light beam emitted by a light source into first light beam and second light beam. A coupling member couples the first light...
US-7,936,485 Image reading apparatus, image processing apparatus, and computer program product
An image reading apparatus includes a clamp-ratio controlling unit configured to change at least one of a clamp period and a line period for each read operation...
US-7,936,465 Print data processing apparatus, printing apparatus, printing system, print data processing method, and...
A print data processing apparatus performs combined printing of a plurality of pages including a page on which an image is oriented in a different direction...
US-7,936,368 Image forming method and image forming apparatus
Positioning displacement characteristics of each of scanning beams are obtained in advance. The positioning displacement characteristics is indicative of a...
US-7,936,367 Image forming apparatus controlling the output level of the light source
An image forming apparatus includes an optical scanning device that scans a scan area on an image carrier with light flux containing image information and...
US-7,936,158 Switching regulator configured to detect and shutdown reverse current
A switching regulator includes a first switch, an inductor, a second switch, a controller to control a switching operation by switching the first switch and...
US-7,935,469 Image forming method and toner for developing latent electrostatic image
Disclosed is a developer containing toner and carrier, the toner containing as a binder resin a polyol resin having a plurality of OH groups in a molecule chain...
US-7,934,714 Sheet post-processing apparatus, image forming apparatus, and image forming system
A sheet post-processing apparatus includes a sheet stacking unit, a moving member, and a discharging member. The moving member moves up the pile stacked on the...
US-7,934,713 Sheet alignment mechanism, sheet post-processing apparatus, and image forming apparatus
A sheet alignment mechanism includes a stacking tray on which a sheet or sheet bundle transported along a sheet transport path is stacked, a pair of side fences...
US-7,934,429 Stress-distribution detecting semiconductor package group and detection method of stress distribution in...
A stress-distribution detecting semiconductor package group includes multiple stress-distribution detecting semiconductor packages each formed by...
US-7,933,857 Translator support system, server, method and recording medium
A server having a database sequentially registers a plurality of Japanese messages to be translated into the database. In parallel to the registration, the...
US-7,933,546 Lubricant applying device and image forming apparatus
In a lubricant applying device, a position adjusting member adjusts relative positions of a lubricant and a rotating member. The rotating member rotates while...
US-7,933,542 Fuser cleaning method and system based upon anticipatory action in image-forming device
A fuser roller surface is cleaned immediately before and or after the fusing operation. The separate cleaning sequence assures that the fuser roller surface is...
US-7,933,529 Image forming apparatus, method for controlling image forming apparatus, fixing apparatus
An image forming apparatus includes a fixing apparatus for fixing a toner image onto a recording medium by applying pressure and heat to toner provided on the...
US-7,933,110 Power control device and image forming apparatus
A first switching unit and a second switching unit are connected in series to an electric power load. A voltage supply unit, which is connected between the...
US-7,933,074 Zoom lens unit and information device
A zoom lens unit, including in order from an object side to an image side: a first lens group having a positive refracting power; a second lens group having a...
US-7,933,062 Electrophoretic fluid, electrophoretic display medium, electrophoretic display element, and electrophoretic...
A disclosed electrophoretic fluid includes a solvent; and first, second, and third dispersible particles having different optical properties and dispersed in...
US-7,933,054 Image processing system and image processing apparatus
An image processing system is disclosed that is configured to input color image data, generate color image data identification information identifying the color...
US-7,933,039 Apparatus, method, and computer program product for forming image
An image reading unit reads an image as a first image represented in a first color space. A color converting unit converts the first image into a second image...
US-7,933,033 Image forming apparatus, image processing method, image processing program and recording medium
An image forming apparatus that functions as a client of a distributed file system is provided, in which the image forming apparatus includes: a distributed...
US-7,932,007 Toner and method for producing the same, and image-forming method using the same
There are provided: a method for producing a toner containing to granulate a toner and to subjecting the granulated toner to at least washing with an alkali...
US-7,931,350 Waste liquid tank, liquid ejection device, and image forming apparatus
A waste liquid tank that holds waste recording liquid is disclosed. In the waste liquid tank, a waste liquid wetting liquid that forms a liquid layer on the...
US-7,931,267 Sheet feed device with sheet tray guide unit
A sheet feed device includes a sheet tray and a guide unit. The sheet tray is configured to store a recording medium including a recording sheet. The guide unit...
US-7,931,263 Image forming system having enhanced functionality
A sheet feed apparatus, e.g., coupled to an image forming apparatus, can include: a main frame; a storage unit mounted on the main frame and configured with a...
US-D636,813 End cap of powder container
US-7,930,658 Semiconductor integrated circuit device and fabrication method thereof
A semiconductor integrated circuit device and a fabrication method thereof are disclosed, for effective suppression of a temperature increase therein that is...
US-7,930,634 Document display apparatus and document display program
A document display apparatus extracts a document element constituting a document and enlarges and displays the extracted document element. The document display...
US-7,930,582 Image processing apparatus and method of transmitting reference clock
An engine unit and a control unit are connected via an interface. A power source supplies electric power to the interface. The engine unit is controlled based...
US-7,930,461 Interface circuit
An interface circuit is disclosed. When a USB-BUS power source voltage VBUS is not normally supplied to the substrate gates of PMOS transistors of switches of a...
US-7,929,901 Recording medium storage container and image forming apparatus
The invention is directed to a recording medium storage container such as a paper supply cassette and an image forming apparatus such as a copying machine. The...
US-7,929,897 Cleaning unit, process cartridge, and image forming apparatus using the same
A cleaning apparatus for removing charged particles includes a cleaning brush and a recovery unit. The cleaning brush removes the charged particles from an...
US-7,929,894 Driving control device and image forming apparatus including the same
A driving control device for use in an image forming apparatus includes a control unit that analyzes any one of a speed variation pattern and a thickness...
← 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.