Patents Represented by Attorney, Agent or Law Firm Dike, Bronstein, Roberts, & Cushman
-
Patent number: 6515774Abstract: A document-image reading device that can analyze a speed fluctuation state of a scanner when scanning an image in the feed direction by separately extracting speed fluctuation components by reading a change in density of reference scale lines and, on the basis of the analysis result, prevents the occurrence of an image blur that may be resulting from unstable factors of a driving mechanism.Type: GrantFiled: May 16, 2002Date of Patent: February 4, 2003Assignee: Sharp Kabushiki KaishaInventors: Takao Horiuchi, Shigeru Watase, Jun Morimoto
-
Patent number: 6512912Abstract: In an image forming portion, a grounded, drum-shaped photosensitive member rotating in a predetermined direction is provided. Arranged around the photosensitive member are a charger, an exposure unit, a developing unit, a cleaning unit, an erasing unit and a transfer roller with a ferroelectric layer formed on the surface thereof. The ferroelectric laminated transfer roller includes a grounded, metal core of aluminum, a conductive rubber layer of an elastomer having a volume resistivity of 105′&OHgr;•cm or below with a thickness of about 3 mm, molded in a roller shape formed on the metal core and a ferroelectric element having a film thickness of some &mgr;m to some tens of micrometers, coating the surface of the conductive rubber layer.Type: GrantFiled: June 18, 2001Date of Patent: January 28, 2003Assignee: Sharp Kabushiki KaishaInventors: Yukikazu Kamei, Tomohiro Oikawa, Shiro Wakahara, Hideki Onishi, Hiroshi Doshoda
-
Patent number: 6512021Abstract: A photo-curing sealing agent comprising (a)an (meth)acrylate ester having a solubility parameter of 9 to 14, hydrophobic silica, and a photo reaction initiator. This sealing agent has high adhesion property to a cold-rolled steel, a galvanized steel or an aluminum alloy, to which a press oil, a rust-preventing oil or the like adheres.Type: GrantFiled: April 6, 2001Date of Patent: January 28, 2003Assignee: Nichiban Company LimitedInventors: Takanori Sugiki, Yuichi Nishida, Yoshio Kishimoto
-
Patent number: 6510129Abstract: An optical recording medium includes a substrate having groove and land areas, in which address pits having substantially the same depth and which are formed deeper than the groove area are provided. By thus forming the address pits deeper than the groove area, address information can be reproduced accurately, and the optical recording medium can readily be manufactured by making the address pits which are respectively formed in the groove and land areas to have substantially the same depth.Type: GrantFiled: September 29, 2000Date of Patent: January 21, 2003Assignee: Sharp Kabushiki KaishaInventors: Junji Hirokane, Noboru Iwata
-
Patent number: 6507716Abstract: An image forming apparatus includes: an input portion for receiving different kinds of jobs; a storage portion for storing a job; an image forming portion for forming images of an input job; a control input portion for providing content display of input jobs and control display; a radiocommunication portion for reading the user identification ID recorded in an information recording medium; a controller for controlling these portions. With this configuration, the image forming apparatus determines the user identification ID of a user so as to provide a display of the operational state best for the user.Type: GrantFiled: May 30, 2001Date of Patent: January 14, 2003Assignee: Sharp Kabushiki KaishaInventors: Tatsuo Nomura, Syoichiro Yoshiura
-
Patent number: 6507415Abstract: An image processing device includes a scanner, which reads a plurality of images and inputs them as multivalue digital image data; a matching data producing section which, based on the inputted multivalue image data, produces matching data for joining the respective inputted images; a post-processing section, which binarizes the image data of each image inputted by the scanner; a joining section, which synthesizes the respective inputted images into a single image by joining the binary data produced by the post-processing section, which corresponds to the image data of the respective inputted images, on the basis of the matching data produced by the matching data producing section; and a printer for outputting the image joined by the joining section. Thus an image processing device can be provided which is capable of joining any type of image, whether from written characters, halftone dot, or photographic originals, and of performing this joining processing at high speed.Type: GrantFiled: October 29, 1998Date of Patent: January 14, 2003Assignee: Sharp Kabushiki KaishaInventors: Masanori Toyoda, Akihiko Iwasaki, Atsushi Narukawa, Yoshiyuki Nakai, Masakiyo Okuda, Takeshi Murakami, Takashi Nishimachi
-
Patent number: 6501556Abstract: An image forming apparatus has a normal print mode in which input image data for a plurality of pages are processed into images on the same number of pages of paper, and a trial print mode in which the input image data are processed into minified images on fewer pages of the paper for trial output such that a user can check an output result to be obtained in the normal mode beforehand. In the trial print mode, a blank page detector detects a blank page from the input image data, and an image data minifier converts the image data stored in an image data buffer into minified image data and stores the data in a second buffer. Then, a plotting section develops the minified image data read from the second data buffer into a plotting pattern, which is then written to a page buffer. In an output section, the plotting pattern read from the page buffer is processed into a visible image. At this time, an image corresponding to the blank page detected by the blank page detector is not formed.Type: GrantFiled: December 22, 1998Date of Patent: December 31, 2002Assignee: Sharp Kabushiki KaishaInventor: Wataru Nishii
-
Patent number: 6498713Abstract: A low-voltage, low-inductance device for storing electrical charge in a snubber circuit and a method of minimizing inductance in the snubber circuit using the device, wherein the device includes a plurality of extended electrodes, in parallel or series, that are joined to a positive conductor terminal at one end spray and at a negative conductor terminal at the other end spray so that end sprays of adjacent extended electrodes are alternately joined to the positive and negative conductor terminals. Accordingly, current flowing though adjacent extended electrodes is of substantially equal intensity but different in direction. As a result, inductance produced effectively cancels out that of adjacent extended electrodes.Type: GrantFiled: March 16, 2001Date of Patent: December 24, 2002Assignee: SatCon Technology CorporationInventors: Phillip A. Sanger, Lyon Mandelcorn, Leban E. Lesster, Frank A. Lindberg
-
Patent number: 6497240Abstract: To provide an ultrasonic cleaning device (1) that ensures stable operation of a vibrating element for generating ultrasonic without a complex structure and distribution of a great quantity of a cleaning liquid and (2) that is capable of cleaning upper and lower surfaces of a cleaning target easily, an ultrasonic cleaning section of the device is provided with an upper cleaning-liquid-supply nozzle and a lower cleaning-liquid-supply nozzle for projection of ultrasonic. The upper cleaning-liquid-supply nozzle supplies an upper surface cleaning liquid to an upper surface of a glass substrate. The lower cleaning-liquid-supply nozzle supplies the lower surface cleaning liquid to a lower surface of the substrate in a form of shower to which ultrasonic has been projected.Type: GrantFiled: April 21, 2000Date of Patent: December 24, 2002Assignee: Sharp Kabushiki KaishaInventors: Kazuki Kobayashi, Toshiaki Muratani, Hiroto Yoshioka
-
Patent number: 6490994Abstract: A plasma processing apparatus that allows processing of high quality under a wider processing condition is provided by optimizing the distance between a plasma region and a substrate even in the case where the processing condition such as process pressure or high frequency output differs. A plasma chamber is divided into a lower plasma chamber and an upper plasma chamber. A process chamber and the lower plasma chamber are connected flexibly by a lower chamber bellows. The lower plasma chamber and the upper plasma chamber are connected flexibly by an upper chamber bellows. Since the radioactive species volume is increased when the process pressure is low, the lower and upper plasma chambers are respectively raised. In contrast, since the radioactive species volume is reduced when the process pressure is high, the upper and lower plasma chambers are respectively lowered.Type: GrantFiled: June 21, 2000Date of Patent: December 10, 2002Assignee: Sharp Kabushiki KaishaInventor: Takashi Yoshizawa
-
Patent number: 6493053Abstract: A liquid crystal display apparatus of the present invention includes: a liquid crystal display device, the liquid crystal display device including: a pair of light transmissive substrates; a transparent electrode layer and an alignment film which are provided on one surface of each of the light transmissive substrates, the surface facing the other one of the light transmissive substrates; and a liquid crystal layer interposed between the pair of light transmissive substrates, wherein: the liquid crystal layer includes liquid crystal molecules; the liquid crystal molecules on a surface on each of the alignment films are pre-tilted in the same direction and by the same angle as those on a surface of the other one of the alignment films; and the liquid crystal layer has a homogeneous orientation; a pair of polarizers provided on respective sides of the liquid crystal display device; and at least one inclined phase plate including an index ellipsoid having three principal refractive indices na, nb and nc, whereinType: GrantFiled: August 4, 2000Date of Patent: December 10, 2002Assignee: Sharp Kabushiki KaishaInventors: Koichi Miyachi, Motohiro Yamahara, Makoto Shiomi, Morio Nakata
-
Patent number: 6490366Abstract: When a user places his finger on a fingerprint detecting section, in the fingerprint detecting section, a shadow made by the finger placed on the fingerprint detecting section is detected by a sensor portion, and then, when it is judged that a shape of the detected shadow coincides with a distribution of the shadow made by the user's finger, and thereby, a power is turned on. Thereafter, a fingerprint is detected from the finger placed on the fingerprint detecting section, and then, the detected fingerprint is collated with a previously stored fingerprint data so as to identify the user. Further, it is possible to use various data such as schedule data corresponding to the identified user. Therefore, this dispenses an operation for turning on the power and an instruction for starting fingerprint collation.Type: GrantFiled: December 18, 1998Date of Patent: December 3, 2002Assignee: Sharp Kabushiki KaishaInventors: Isamu Haneda, Toshio Isoe
-
Patent number: 6488170Abstract: A container and a lid for closing it are disclosed. The container has an open end, a closed end and a peripheral sidewall therebetween. The peripheral sidewall has a rolled rim at the edge thereof adjacent the open end of the container. The lid has a dome-shaped structure. A peripheral rim curl is provided for locking the lid to the rolled rim of the container to close the open end. The lid also has a central region and a plurality of arched struts extending radially between the central region and the peripheral rim curl. At least one tabular hinged drinking region is provided in the lid. The tabular hinged drinking region is structured and arranged to be depressed into the container, thereby providing at least one flow-through opening in the tabular hinged drinking region of the lid. Preferably, the depressed tabular hinged drinking region is self-locking.Type: GrantFiled: November 17, 2000Date of Patent: December 3, 2002Assignee: Tim Johnson Design, Inc.Inventor: Timothy C. Johnson
-
Patent number: 6486864Abstract: A liquid crystal display device of the present invention includes: first and second electrodes crossing each other; switching elements in a vicinity of each first and second electrode intersection; pixel electrodes respectively arranged in a matrix and partitioned from one another by the first and second electrodes; the first electrodes supplied with a gate voltage for turning ON/OFF the switching elements and the second electrodes supplied with a source voltage; third electrodes supplied with a common voltage; and a liquid crystal layer interposed between the third electrodes and the pixel electrodes. The source voltage includes an image signal voltage and an assist signal voltage. The common voltage has different values between an image signal writing scanning period defined as a period during which the image signal voltage is applied, and at least one assist signal writing scanning period defined as a period during which the assist signal voltage is applied.Type: GrantFiled: March 3, 2000Date of Patent: November 26, 2002Assignee: Sharp Kabushiki KaishaInventors: Mutsumi Nakajima, Koichi Miyachi
-
Patent number: 6483598Abstract: An image processing portion for conducting the specified processing of an image to be reproduced by an image forming portion based on the processed image data is constructed as a single control portion. Consequently, the development of a variety of digital copying machines requires preparation of specially designated control boards according to levels of the products. This makes machines expensive and requires users to pay a considerable initial cost.Type: GrantFiled: July 26, 2001Date of Patent: November 19, 2002Assignee: Sharp Kabushiki KaishaInventors: Atsushi Narukawa, Fuminori Miyoshi, Kenichi Maeda, Hidenori Ohnishi
-
Patent number: 6483559Abstract: A reflective liquid crystal display device includes: a liquid crystal layer in a cell; a polarizer disposed in front of the liquid crystal layer; a reflector disposed behind the liquid crystal layer; and a quarter-wave plate disposed between the liquid crystal layer and the reflector, the liquid crystal layer including a liquid crystal and a liquid crystalline polymer which are twisted in molecule alignment so as to have a twist angle X represented by X=(45°+90° n)±10° (n=0 or a positive integer).Type: GrantFiled: December 1, 1999Date of Patent: November 19, 2002Assignee: Sharp Kabushiki KaishaInventors: Hajime Hiraki, Shun Ueki
-
Patent number: 6481902Abstract: A light transmission device includes an optical fiber cable having a plug and a holder having a plug insertion hole into which the plug of the optical fiber cable is inserted, wherein an engaging projection is provided on an outer surface of the plug, an engaging groove corresponding with the projection is provided on a wall of the plug insertion hole, and a shutter for closing the plug insertion hole is provided, the shutter being opened and closed in the inside of the plug insertion hole by turning about a pivot extending substantially vertically or parallel to a line composed of an optional point in the groove and a point on a wall of the plug insertion hole rightly opposite to the optional point.Type: GrantFiled: February 23, 2001Date of Patent: November 19, 2002Assignee: Sharp Kabushiki KaishaInventors: Takashi Takaoka, Mitsuhisa Ikuta
-
Patent number: 6483653Abstract: A magnetic layer includes a first magnetic film and a second magnetic film which are coupled to each other by means of exchanged coupling of magnetic materials, and one of the magnetic films is made of a ferrimagnetic material having a magnetic compensation temperature. When information is reproduced by heating a magnetic reproducing track portion to a magnetically reproducible temperature by a light beam, the magnetization directions of the two magnetic films are opposite in a peripheral track portion having approximately room temperature, and the same in the magnetic reproducing track portion heated to the magnetically reproducible temperature. Consequently, crosstalk from the peripheral track portion is reduced, and a reproducing signal from the magnetic reproducing track portion is increased, thereby improving the S/N of the reproducing signal significantly.Type: GrantFiled: November 16, 1999Date of Patent: November 19, 2002Assignee: Sharp Kabushiki KaishaInventors: Hiroyuki Katayama, Shinzo Sawamura
-
Patent number: RE37932Abstract: A supermicrocellular foamed material and a method for producing such material, the material to be foamed such as a polymerplastic material, having a supercritical fluid, such as carbon dioxide in its supercritical state, introduced into the material to form a foamed fluid/material system having a plurality of cells distributed substantially throughout the material. Cell densities lying in a range from about 109 to about 1015 per cubic centimeter of the material can be achieved with the average cell sizes being at least less than 2.0 microns and preferably in a range from about 0.1 micron to about 1.0 micron.Type: GrantFiled: August 2, 1996Date of Patent: December 10, 2002Assignee: Massachusetts Institute of TechnologyInventors: Daniel F. Baldwin, Nam P. Suh, Chul B. Park, Sung W. Cha
-
Patent number: RE37979Abstract: The disclosure concerns pyrimidine derivatives represented by the following general formulas [I] and [I′] and having antiviral activity, particularly antiretroviral activity such as anti-HIV activity: and pharmaceutical compositions having antiviral activity and comprising the above-described derivative(s) as an active ingredient.Type: GrantFiled: October 23, 1997Date of Patent: February 4, 2003Assignee: Mitsubishi Chemical CorporationInventors: Tadashi Miyasaka, Hiromichi Tanaka, Erik DesirĂ© DeClercq, Masanori Baba, Richard Thomas Walker, Masaru Ubasawa