Patents Assigned to Canon Inc.
  • Patent number: 10020222
    Abstract: There is provided a method for processing an inner wall surface of a micro vacancy, capable of reliably etching or cleaning even if the hole provided to the substrate to be processed is narrow and deep. The substrate has a surface and a micro vacancy with an opening on the surface. An aspect ratio of the micro vacancy being at least 5, or the aspect ratio being less than 5 and a ratio of a micro vacancy volume to a surface area of the opening being at least 3. The micro vacancy is exposed to an atmosphere for forming a silicon oxide film so as to form a silicon oxide film on the inner wall surface of the micro vacancy. Subsequently a processing solution with a wettability with respect to silicon oxide is introduced into the micro vacancy so as to perform processing of the inner wall surface.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: July 10, 2018
    Assignee: CANON, INC.
    Inventors: Takeshi Sakai, Tatsuro Yoshida, Ryosuke Hiratsuka, Syun Ishikawa
  • Patent number: 8008622
    Abstract: High-contrast exposure is performed by use of a small dose of electron beams, a pattern is formed on a wafer with high accuracy, and high-precision inspection is performed. In pattern formation, proximity effect correction processing is performed. Moreover, exposure of electron beams is performed based on a result of filtering using an inverse characteristic of exposure characteristics of the electron beams. Furthermore, in pattern inspection, electron beams are irradiated based on a result of filtering for obtaining a peripheral region of an edge of the pattern formed.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: August 30, 2011
    Assignees: Hitachi High-Technologies Corporation, Canon Inc.
    Inventors: Ryo Fujita, Haruo Yoda, Kimiaki Ando, Yuji Inoue, Masato Muraki
  • Patent number: 7635851
    Abstract: High-contrast exposure is performed by use of a small dose of electron beams, a pattern is formed on a wafer with high accuracy, and high-precision inspection is performed. In pattern formation, proximity effect correction processing is performed. Moreover, exposure of electron beams is performed based on a result of filtering using an inverse characteristic of exposure characteristics of the electron beams. Furthermore, in pattern inspection, electron beams are irradiated based on a result of filtering for obtaining a peripheral region of an edge of the pattern formed.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: December 22, 2009
    Assignees: Hitachi High-Technologies Corporation, Canon Inc.
    Inventors: Ryo Fujita, Haruo Yoda, Kimiaki Ando, Yuji Inoue, Masato Muraki
  • Patent number: 7608844
    Abstract: In the present invention, vector data developing unit, ends separating unit, overlap removing unit and bitmapped data generating unit are sequentially connected in order to make pipeline processing. In addition, data of each raster is orderly arranged as a unit so that each processor can process data of each raster at a time. Each processor can make the pipeline processing to fast generate data. In addition, small-scale circuits can be used to realize the system because each raster can be processed as a unit of processing. Moreover, since data is orderly arranged before being processed, multi-valued bitmapped data can be generated in the order of drawing. Therefore, the drawing operation and data generating operation can be performed in parallel without use of any large-scale storage device.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: October 27, 2009
    Assignees: Hitachi High-Technologies Corporation, Canon Inc.
    Inventors: Yuji Inoue, Haruo Yoda, Kimiaki Ando, Yoshikiyo Yui
  • Patent number: 7599007
    Abstract: In detection of noise by comparing a digital input image signal and an output image signal in one previous frame with each other, when the input image signal, the output image signal in one previous frame, and a predetermined reference value are represented by a, b, and x, respectively, and when |a?b|?x and a?b?1 are satisfied, the presence of noise is determined.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: October 6, 2009
    Assignee: Canon Inc.
    Inventor: Seiji Matsunaga
  • Patent number: 7030925
    Abstract: A camera system comprising means for converting an object image into an image signal, recording means for recording the image signal on a recording medium, reproduction means for reproducing the image signal recorded on the recording medium, finder means for displaying the object image and display means for selectively displaying an image corresponding to the image signal to be recorded or an image corresponding to the reproduced image signal. A display portion of the finder means is smaller than that of the display means and the display portion of the display means has a flat plate which can be exposed to an outside of the camera system.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: April 18, 2006
    Assignee: Canon, Inc.
    Inventors: Tokuichi Tsunekawa, Nobuaki Date, Hiroshi Aizawa, Kazuya Hosoe, Kazunori Urushibara
  • Patent number: 6770385
    Abstract: A fluorescent compound, suitable for use in an active layer of an organic light-emitting device and exhibiting both good luminescence and excellent thermal stability, which has the structure wherein R is substituted or unsubstituted alkyl; wherein Ar2 is optionally present; and wherein Ar1, Ar2, and Ar3 are independently each a substituted or unsubstituted aryl group.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: August 3, 2004
    Assignee: Canon Inc.
    Inventors: Jian Ping Chen, Travis P. S. Thoms, Bing R. Hsieh
  • Patent number: 6744054
    Abstract: An evacuation use sample chamber is constituted by a top table 21 which is provided with a recessed portion disposed in a sample chamber main body 10 and for mounting a sample 8 and a groove portion surrounding the recessed portion; a stage 20 which holds the top table 21 and is displaceable in front and back, right and left and up and down directions together with the top table 21; a sample chamber cover 11 which covers above the sample chamber main body 10 including the top table 21; and an evacuation use pipe 21C which communicates with the groove portion and evacuates gas between the bottom face of the sample chamber cover 11 and the top face of the top table 21 including the sample 8. Thereby, an evacuation use sample chamber which performs a stable evacuation and keeps around a sample at a predetermined high vacuum and a circuit pattern forming apparatus which permits a highly accurate pattern drawing over the entire region of the sample are provided.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: June 1, 2004
    Assignees: Hitachi, Ltd., Canon Inc.
    Inventors: Masaki Mizuochi, Yoshimasa Fukushima, Mitsuru Inoue
  • Patent number: 6647102
    Abstract: When it is discriminated that a facsimile apparatus is not connected to a telephone line, even if the power of the facsimile apparatus is turned on, then a predetermined time is elapsed, a demonstration operation using a display unit and a speaker included in an operation unit is to be automatically started in accordance with demo patterns stored in a ROM. Then, the demonstration is once stopped by a manual operation of the facsimile apparatus according to the use of the operation unit, a handset or the like. Accordingly, a data communication apparatus such as the facsimile apparatus or the like which is used to be connected to the telephone line is made to perform the demonstration operation easily, and the demonstration operation can be stopped when it is not required.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: November 11, 2003
    Assignee: Canon, Inc.
    Inventors: Yoshiyuki Hirai, Teruyuki Nishii
  • Patent number: 6384836
    Abstract: A process of displaying images on output displays, incompatible with the input format, is disclosed. In particular, a process of displaying RGB input on a screen having Red, Green, Blue and White bi-level pixel elements defines a convex hull of the output points and maps the input data into the convex hull. Those values are moved outside the convex hull so that they lie on the surface of the convex hull and the mapped values are halftoned to produce output pixel elements corresponding to an approximation of the input pixels.
    Type: Grant
    Filed: August 27, 1997
    Date of Patent: May 7, 2002
    Assignee: Canon Inc.
    Inventors: William Clark Naylor, Jr., Kia Silverbrook
  • Patent number: 6064761
    Abstract: An arrangement for sharpening the resolution of printed text in a color printing system is disclosed. An image processing system (1) includes a color conversion apparatus (2) for converting from one color space (RBG) to another color space (CMYK) for display on a color printer (8). The color conversion apparatus (2) includes a near-black correction unit (36) which detects near black-near white and near white-near, black transistions and when such a transition occurs, outputs a full,or deep black color in place of the near-black color.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: May 16, 2000
    Assignees: Canon Information Systems Research Australia Pty Limited, Canon Inc.
    Inventor: James Robert Metcalfe
  • Patent number: 5844532
    Abstract: A color display system that is capable of taking input intended to be displayed on a full color display (e.g. VDU) having a high refresh rate and displaying the image on a display having a much reduced number of displayable colors and a lower refresh rate. 24-bit RGB data is input and converted into bi-level RGBW data and halftoned in a render unit for storage before display. Motion detection is used to ensure that only those pixels that have change in value are updated on the display.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: December 1, 1998
    Assignee: Canon Inc.
    Inventors: Kia Silverbrook, William Clark Naylor, Jr., Michael Webb, David Ross Brown, Natalie Lisa Kershaw, Mark Pulver, Rodney James Whitby
  • Patent number: 5825943
    Abstract: A method and system for storing and selectively retrieving information, such as words, from a document set. The method includes generating an image data set representative of the information contained in the document set. The method also involves generating a text data set representative of a text portion of the information contained in the document set. A text-image correspondence (TIC) table is generated that includes data representative of coordinates information corresponding to each phrase of the document set. A search phrase is identified in response to user-specified search criteria and the search phrase is identified in the text image data set. Then, the TIC table is used to identify the coordinates information corresponding to the search phrase identified in the text data set. A display of the portion of the page containing the search phrase is generated using the coordinates information.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: October 20, 1998
    Assignee: Canon Inc.
    Inventors: Jonathan DeVito, Harry Garland, Ken Hunter, Gerald A. May, Michael G. Roberts
  • Patent number: 5781659
    Abstract: An OCR system 10 classifies an input image vector of an unclassified symbol with respect to a library 14T of template image vectors of pre-classified characters. Each template vector is in the form of a sequence of elements representing the image intensity level of a pixel within the character defined by that template vector. Each template element is part of the image background, foreground, or transition ground between the background and foreground. Each input vector, like the template vectors, is also in the form of a sequence of elements. However, in the input vector, each element represents the sum or an image intensity level signal component defining the symbol within the image of the unclassified symbol plus a greyscale noise component. Each input element is also part of the background, foreground, or transition ground. The input vector and at least one of the template vectors are entered into a classifier device 18.
    Type: Grant
    Filed: February 4, 1997
    Date of Patent: July 14, 1998
    Assignee: Canon Inc.
    Inventors: Roger D. Melen, Hadar Avi-Itzhak
  • Patent number: 5768424
    Abstract: Most output display devices such as printers and displays require certain minimum timings for delivery of data to be displayed. The use of compressed image stores as input to these displays requires that the image be decompressed within the minimum time limits as required by the display. The present invention discloses an effective method for ensuing that these minimum timings are met through the division of the image into bands (B1,B2, . . . Bn) and the recompression of those bands that fail to meet the minimum timing requirements of the output display device.
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: June 16, 1998
    Assignee: Canon, Inc.
    Inventor: Timothy Long
  • Patent number: 5757516
    Abstract: An apparatus and method for suppressing noise and an input image having a plurality of pixels, each of the pixels in the plurality of pixels having a range of possible values between at least two extremities. A first group of pixels is determined, each pixel of the first group having a value that is less than a predetermined amount from the value of at least one of the extremities. The values of pixels adjacent to each pixel in the first group are examined to determine if the adjacent pixels are also members of the first group and, when a predetermined number of the pixels adjacent to a pixel in the first group are also members of the first group, reassigning the pixel value of that pixel in the first group and each of its adjacent pixels to have the value of at least one of the extremities.
    Type: Grant
    Filed: January 4, 1994
    Date of Patent: May 26, 1998
    Assignee: Canon Inc.
    Inventor: William Clark Naylor, Jr.
  • Patent number: 5719959
    Abstract: Pattern recognition, for instance optical character recognition, is achieved by forming a skeletal representation (400) of a pattern (300), processing the skeletal diagram (400) to improve representation of curved lines (308) in the pattern (300), representing the processed skeletal diagram (500) by a connectivity matrix (602), and finding a minimum spectral distance between the connectivity matrix (602) and a set of template matrices corresponding to known patterns.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: February 17, 1998
    Assignee: Canon Inc.
    Inventor: Radovan V. Krtolica
  • Patent number: 5712962
    Abstract: A system for providing gray scale modulation signals to the drive circuit of a laser printer having a source of printer video timing signals, a printer video drive circuit, a memory for storing a raster bit map that can be read out in accordance with the timing signals, and a source of flag signals. The system includes another memory for storing a plurality of multibit bytes each encoding a corresponding gray scale value, and an address generator for relating the timing of the operation of the system to the timing of operation of said raster bit map memory. A Modulator is included for converting the gray scale values to a stream of pulse-width-modulated signals. A logic switch is included and is responsive to each flag signal for selectively feeding either the stream of pulse-width-modulated signals or the raster bit map to the drive circuit.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: January 27, 1998
    Assignee: Canon, Inc.
    Inventor: Alice M. d'Entremont
  • Patent number: 5659792
    Abstract: An automated storyboard system, which is updated for the creation of information sequences. The storyboard includes an array of cells arranged in columns, with the content of each cell indicating an information source having a certain active duration. For each column of the storyboard which contains active cells a determination is made as to which of the cells contains an information source having a shortest one of the active durations. The column is marked to have a column time duration of the cell of shortest active duration, with the cell of the shortest active duration being terminated at the end of the column. When other active cells exist for the column, a further column is added next to the column, with the further column containing the other active cells. The active cells have an updated active duration which is equal to their previous active duration less the column time duration.
    Type: Grant
    Filed: January 13, 1994
    Date of Patent: August 19, 1997
    Assignees: Canon Information Systems Research Australia Pty Ltd., Canon Inc.
    Inventor: Simon Robert Walmsley
  • Patent number: RE38942
    Abstract: An apparatus for generating a high quality image from a digital video signal includes a system for gamma correcting the digital video signal with a digital look up table and for converting the resultant digital signal to an analog video signal. Another circuit generates a triangular wave reference pattern signal and a comparator compares the analog video signal with the triangular wave reference pattern signal to form a pulse-width-modulated signal. A raster scanning print engine producing, for example, a laser beam, scans over a recording medium in accordance with the pulse-width-modulated signal, thereby forming an image of high quality on the recording medium of a print engine. This apparatus can also be used with an analog video signal by first converting the analog video signal to a digital video signal with an analog to digital converter.
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: January 24, 2006
    Assignee: Canon Inc.
    Inventors: Jean M. Riseman, John J. Smith, Alice M. d'Entremont, Craig E. Goldman, John H. Riseman