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-7,865,112 Electrophotographic printer
An electrophotographic printer capable of easily attaching and detaching a retaining means to retain the inside of a photoconductive drum to and from the...
US-7,865,090 Maintenance management system and image forming apparatus
A disclosed maintenance management system includes an upper-limit information storage unit configured to store an upper limit of usage for each component...
US-7,865,028 Code processing apparatus and code processing method
A code processing apparatus for generating a file including a JPEG 2000 codestream or a JPEG 2000 family format including the JPEG 2000 codestream is disclosed...
US-7,864,495 Excess voltage protection circuit, method of protecting a circuit from excess voltage, and semiconductor...
In a disclosed excess voltage protection circuit, when the input voltage equal to or higher than a predetermined maximum voltage is detected by an excess voltage...
US-7,864,446 Lens driver unit, imaging device, and hand-held data terminal device
A lens driver unit includes a plurality of lens groups including a first lens group and a second lens group, a first lens frame with first and second engaging...
US-7,864,443 Zoom lens, imaging apparatus, and personal data assistant
A zoom lens includes a first optical system having a positive focal length, the first optical system, a second optical system having a negative focal length, a...
US-7,864,378 Image reader
An image reader includes a lamp that irradiates light onto a document, a first carriage that moves the lamp along the document to optically scan the document, a...
US-7,864,372 Color conversion apparatus and color conversion method
A color conversion method including the steps of a) generating output values corresponding to a body-center of each cubic lattice block included in a...
US-7,864,371 Image processing apparatus, image processing method, and computer product
An image processing apparatus includes a first storage unit, a second storage unit, a selecting unit, a first converting unit, a second converting unit, and a...
US-7,864,352 Printer with multimedia server
A printer with an embedded multimedia server is described that includes a processor primarily allocated for print control and another processor for executing a...
US-7,864,241 Lens barrel, camera and mobile information terminal
A lens barrel includes: a lens frame retaining at least one portion of the plurality of lens groups; a first lens cylinder supporting the lens frame inside...
US-7,864,231 Imaging apparatus and defective pixel correcting method
A disclosed imaging unit includes an image sensor in which plural light receiving elements are arranged in a matrix; a defective information storage unit...
US-7,863,946 Electric signal outputting apparatus with a switching part, an impedance matching part, and an auxiliary...
The present invention discloses an electric signal outputting apparatus in a serial electric transmission system. The electric signal outputting apparatus...
US-7,863,942 Voltage detecting circuit
A voltage detecting circuit for comparing a voltage to be detected with a reference voltage and outputting an output signal having a level depending on the...
US-7,862,973 Toner and developer, and image forming apparatus, image forming method and process cartridge
Provided is a toner that comprises a binder resin, a releasing agent, and a colorant, wherein the mass average particle diameter of the toner is 3 .mu.m to 8...
US-7,862,969 Image bearing member and image forming method using thereof, and image forming apparatus and process cartridge
The present invention provides an image bearing member that includes: a photoconductor; and a heating unit which heats the photoconductor, wherein the...
US-7,862,141 Liquid-discharge-failure detecting apparatus and inkjet recording apparatus
A light-emitting element emits a beam onto a droplet discharged from a nozzle from a direction opposite to a direction of discharge of the droplet. A...
US-7,862,037 Sheet feed cassette and image forming apparatus
An image forming apparatus has a sheet feed cassette to store a sheet supplied to the image forming apparatus. The sheet feed cassette has a cassette body and a...
US-7,862,023 Sheet processing device and image forming apparatus
A sheet processing device includes a stapling tray, a rear-end clamp, and a stapler that staples sheets while the rear-end clamp is clamping the sheets. In...
US-7,861,227 Software development environment with design specification validation tool
An automated software class specification validation tool automatically determines, for functions defined in a function definition section of a class...
US-7,861,182 Dynamic printer driver user interface generation
After print path construction logic has established a print path to convert print data from a source format to a target format, the print path construction logic...
US-7,861,169 Multimedia print driver dialog interfaces
The system of the present invention includes a media-printing interface that allows users to interact with a multimedia transformation process and format...
US-7,861,086 Digital signing method, digital signing apparatus, portable information processing apparatus, digital signing...
A digital signing method in a digital signing apparatus that provides a digital signature to electronic data, including: inputting data to be signed with the...
US-7,860,442 Image fixing device having carbon lamp and reflector
An image fixing device for use in an image forming apparatus. The fixing device includes a fixing member which fixes a toner image on a recording medium at a nip...
US-7,860,438 Image forming apparatus using toner including an external additive at an additive burial rate of not less than...
An image forming apparatus includes an image carrier, an endless belt whose front surface contacts the image carrier to form a transfer nip, and a bias applying...
US-7,860,424 Managing and utilizing error information relating to image processing
Image processing apparatus and method to perform an image processing job based on a received processing request, which includes a processing condition set by a...
US-7,860,423 Image forming method and apparatus for convenient replacement of developer container
An image forming apparatus includes an image forming mechanism for forming an image, at least one developer container replaceably provided in the image forming...
US-7,860,421 Image forming apparatus
A process unit is removably attached inside a main body of an image forming apparatus. The process unit includes a casing and a latent image carrier housed...
US-7,860,267 System, computer program product and method for managing documents
A system, method and computer program product for managing documents. The system includes a document manager that is configured to search for application...
US-7,860,035 Communication device and remote management system
A communication device is provided in a network including a plurality of network segments to which customer devices are connected respectively, the communication...
US-7,859,991 Signal transmitting apparatus, power supplying system, and serial communication apparatus
A signal transmitting apparatus includes a sending part and a receiving part. The sending part converts each width of a plurality of digital input signals into a...
US-7,859,957 Optical disc system
An optical disc apparatus includes a pause circuit for pausing data encoders upon receiving a pause signal so that a write operation may be paused without...
US-7,859,732 Optical scanner and image forming apparatus
A scanning optical system is configured such that at least a smaller value of the size in a main scanning direction of optical beams entering into an opening...
US-7,859,704 Image forming apparatus including a storable page number calculating unit
In a disclosed image forming apparatus, an original is scanned and image data of the original are obtained. The data size of the image data corresponding to one...
US-7,859,700 Image forming apparatus associating with other apparatuses through network
In an image forming apparatus, screen information for displaying a plurality of function options available for a predetermined process is generated. A screen...
US-7,859,558 Optical scanning device, control method thereof, and image forming apparatus therewith
An optical scanning device is disclosed, including: a light deflection part, an imaging optical element, a variable focus optical element, and a focal point...
US-7,859,239 Switching regulator and method of adjusting pulse width
A switching regulator switches according to an input signal and performs PWM control with a PWM pulse signal. The switching regulator includes a pulse width...
US-7,858,280 Toner and image forming method using the same
A toner formed of a toner composition containing a resin and a plasticizer, wherein the following relationships (1) and (2) are satisfied: Tg2r>Tg2t (1), and...
US-7,858,278 Electrophotographic photoreceptor, and image forming apparatus and process cartridge using the...
An electrophotographic photoreceptor is provided, including an electroconductive substrate and a photosensitive layer located overlying the electroconductive...
US-7,857,458 Image display device and image projection device
An image display device is disclosed that has a simplified structure and is able to display a high quality image of high resolution at low cost. The image...
US-7,857,434 Liquid discharging head, liquid discharging device, and image forming apparatus
A liquid discharging head includes a nozzle, a pressing liquid chamber, a plurality of energy generators, and a base. The nozzle discharges a liquid drop. The...
US-7,856,400 Billing based on the type of printed document
Techniques are provided for billing a customer for printing services based on the type of document printed. Types of documents may include business cards, books,...
US-7,856,253 Power supply IC having switching regulator and series regulator
An integrated circuit for supplying power includes an IC chip having a rectangular shape and having a first edge and a second edge opposite the first edge, a...
US-7,856,201 Image transfer fixation apparatus and image formation apparatus
A transfer fixation apparatus includes: a fixing member that carries the toner image; a pressurizing member that becomes in contact with the fixing member with...
US-7,856,190 Heating device, fixing device, method of controlling temperature of heating member, and image forming apparatus
A heating device heats, by electromagnetic induction heating, a heating member disposed in a fixing device for use in an image forming apparatus. The fixing...
US-7,856,189 Image forming apparatus and a method of effectively detecting toner state in the same
An image forming apparatus includes an optical sensor configured to optically detect a density of a reference pattern image, a toner density sensor configured to...
US-7,856,153 Displaying a long sequence of images in a short amount of time
A method and apparatus is disclosed herein for displaying a long sequence of images in a short amount of time. In one embodiment, the method comprises selecting...
US-7,856,039 Semiconductor device and semiconductor laser driving device
In a semiconductor device, a switching current generator circuit generates and outputs a switching current such that a voltage input to a switching current...
US-7,855,842 Zoom lens unit, imaging apparatus and portable information terminal device
A zoom lens unit including, in order from an object side to an image surface side: a first lens group having a positive refracting power; a second lens group...
US-7,855,818 Optical scanning apparatus and image forming apparatus
In an optical scanning apparatus, an aperture is provided between a semiconductor laser in a light source unit and an oscillating mirror, and between a...
← 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.