Patents by Inventor Hiroaki Fukuda

Hiroaki Fukuda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8023157
    Abstract: An image data correcting device eliminates a back projection image without eliminating an image corresponding to a low-intensity halftone image. An intensity difference detection part detects an intensity difference between first image data corresponding to a part of a predetermined small area and second image data corresponding to the remaining parts of the predetermined small area. A halftone detection part determining whether the first image data corresponds to a halftone image. An intensity change part changes an intensity of the first image data to a predetermined low intensity, when the intensity difference is equal to or smaller than a first predetermined value and the first image data does not correspond to the halftone image and the intensity of the first image data is equal to or smaller than a second predetermined value.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: September 20, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuji Takahashi, Hiroyuki Kawamoto, Hiroaki Fukuda
  • Patent number: 7724986
    Abstract: An image processor includes a plurality of image processing devices that perform image processing, a storing unit that stores related data set for image data stored in the image processor, a translating unit that translates the related data to internal data, a converting unit that converts the internal data to information corresponding to a program and data used for image processing, and a downloading unit that downloads the information to the image processing devices. The image processing devices perform the image processing based on downloaded information.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: May 25, 2010
    Assignee: Ricoh Company Limited
    Inventors: Akira Murataka, Hiroaki Fukuda, Hiroyuki Kawamoto, Isao Miyamoto, Satoshi Ohkawa, Yasunobu Shirata, Atsushi Togami, Fumio Yoshizawa, Shuji Kimura
  • Patent number: 7673165
    Abstract: The image processing device comprises a first function block section formed of functional blocks which require a supply of power so as to maintain the image processing device in an operating state when the power supply is on, and a second function block section formed of functional blocks which need not be supplied with the power so as to maintain the image processing device in an operating state even when the power supply is on. The supply of power to the second function block section can be stopped when desired, while continuing the supply of power to the first function block section, thereby saving the power.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: March 2, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Sugitaka Oteki, Yuji Takahashi, Yoshiyuki Namizuka, Hideto Miyazaki, Yasuyuki Nomizu, Hiroyuki Kawamoto, Rie Ishii, Takeharu Tone, Hiroaki Fukuda, Shinya Miyazaki, Fumio Yoshizawa
  • Patent number: 7633650
    Abstract: An image processing apparatus can obtain a copy image having excellent reproducibility with a relatively simple structure of a processing unit that processes image data. The image processing apparatus generates image formation data by processing image data. A gradation processing unit binarizes the image data according to an error diffusion process so as to convert the image data into binary image data. A character/line drawing detection unit determines whether a part of the binary image data corresponds to a character/line drawing portion that consists of characters or line drawings so as to detect the character/line drawing portion. An image processing unit applies an image processing to the part of the binary image data by using an image processing method according to a result of determination of the character/line drawing detection unit.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: December 15, 2009
    Assignee: Ricoh Company, Ltd.
    Inventor: Hiroaki Fukuda
  • Patent number: 7630132
    Abstract: A polarization control device includes a support substrate on which a metal compound structure is formed. The metal compound structure is formed with at least two metal fine structures arranged periodically in a range equal to or smaller than a wavelength of an incident light.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: December 8, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Suguru Sangu, Hiroaki Fukuda, Masato Takada, Izumi Itoh, Junichi Takahashi, Taroh Terashi
  • Patent number: 7599087
    Abstract: A programmable image processor capable of realizing a plurality of image formation operations is comprised of an SIMD type data operation processing section, RAMs, memory controllers, and memory switches. The memory controller and the memory switches selectively connect the plurality of RAMs to the data operation processing section thereby changing the memory capacity allotted to each image formation operation among a plurality of image formation operations.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: October 6, 2009
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroaki Fukuda, Yoshiyuki Namizuka, Shinya Miyazaki, Sugitaka Oteki, Takako Satoh, Rie Ishii, Takeharu Tone, Hiroyuki Kawamoto, Hideto Miyazaki, Fumio Yoshizawa, Yuji Takahashi, Yasuyuki Nomizu
  • Publication number: 20090237686
    Abstract: An image processing unit includes a first image processing unit that processes image data from a reading unit and a second image processing unit that processes image data from either one of the first image processing unit and a storing unit. A control unit determines a processing to be performed on the image data by the second image processing unit depending on a result of a processing performed on the image data by the first image processing unit, and selects an image processing route depending on a processing to be performed on the image data by the second image processing unit.
    Type: Application
    Filed: March 17, 2009
    Publication date: September 24, 2009
    Inventors: Tomoyuki Yoshida, Hiroaki Fukuda
  • Publication number: 20090237714
    Abstract: In a first route, image data from an image reading unit is processed by both a first image processing block and a second image processing block and sent to a storage unit, and in a second route, the image data processed by the first image processing block is stored in the storage unit and image data from the storage unit is processed by the second image processing block and sent to the storage unit. The control unit switches a process of the second image processing block according to a result of a process of the first image processing block, and switches an input source to the second image processing block according to a process content of the second image processing block.
    Type: Application
    Filed: March 12, 2009
    Publication date: September 24, 2009
    Inventors: Hiroaki FUKUDA, Tomoyuki YOSHIDA
  • Patent number: 7394577
    Abstract: The image processing apparatus comprises an image data control section and a system controller. The image data control section is connected to any one or more of a sensor board unit, an image-memory access control section, an image processor, a video data control section, and a facsimile control unit. The system controller switches, when the image data to be transmitted to the image data control section conflicts with one another, a transmission mode of the image data in conflict with one another. Further, the image-memory access control section and the image processor share jobs of performing image processing on the image data.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: July 1, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiyuki Namizuka, Yuji Takahashi, Hiroyuki Kawamoto, Hideto Miyazaki, Shinya Miyazaki, Takeharu Tone, Fumio Yoshizawa, Hiroaki Fukuda, Rie Ishii, Sugitaka Oteki, Yasuyuki Nomizu
  • Patent number: 7372599
    Abstract: An image processor has a controller unit connected to at least one of functional units such as an image reading unit, detects a source of input of image data according to a network I/F or a parallel bus I/F. An image-memory access control section transmits the image data input from each of the functional units to a memory group and also transmits the image data stored in the memory group to the functional unit. A system controller controls the overall apparatus and also controls the image-memory access control section according to the input source of the image data to determine an order of transmitting the image data to the memory group.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: May 13, 2008
    Assignee: Ricoh Compnay, Ltd.
    Inventors: Yoshiyuki Namizuka, Hideto Miyazaki, Shinya Miyazaki, Sugitaka Oteki, Yuji Takahashi, Takeharu Tone, Fumio Yoshizawa, Hiroaki Fukuda, Yasuyuki Nomizu, Takako Satoh, Rie Ishii, Hiroyuki Kawamoto
  • Publication number: 20080094647
    Abstract: An image data correcting device eliminates a back projection image without eliminating an image corresponding to a low-intensity halftone image. An intensity difference detection part detects an intensity difference between first image data corresponding to a part of a predetermined small area and second image data corresponding to the remaining parts of the predetermined small area. A halftone detection part determining whether the first image data corresponds to a halftone image. An intensity change part changes an intensity of the first image data to a predetermined low intensity, when the intensity difference is equal to or smaller than a first predetermined value and the first image data does not correspond to the halftone image and the intensity of the first image data is equal to or smaller than a second predetermined value.
    Type: Application
    Filed: August 20, 2007
    Publication date: April 24, 2008
    Inventors: Yuji Takahashi, Hiroyuki Kawamoto, Hiroaki Fukuda
  • Patent number: 7336386
    Abstract: The image processor comprises a switch that divides image data into m×n pixels, having n lines with m pixels per one line; a group of line memories that store the divided image; a compression device which batch compresses the image data of m×n pixels. Further, a command control unit provides control so as to send the (n?1) lines of image data among m×n pixels of image data to the group of line memories, and the remaining one line of image data directly to the compression device 902, and to send the m×(n?1) pixels of image data stored in the line memories to the compression device.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: February 26, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Sugitaka Oteki, Yoshiyuki Namizuka, Yuji Takahashi, Hideto Miyazaki, Yasuyuki Nomizu, Hiroyuki Kawamoto, Rie Ishii, Takeharu Tone, Shinya Miyazaki, Fumio Yoshizawa, Hiroaki Fukuda
  • Publication number: 20070300093
    Abstract: The image processing device comprises a first function block section formed of functional blocks which require a supply of power so as to maintain the image processing device in an operating state when the power supply is on, and a second function block section formed of functional blocks which need not be supplied with the power so as to maintain the image processing device in an operating state even when the power supply is on. The supply of power to the second function block section can be stopped when desired, while continuing the supply of power to the first function block section, thereby saving the power.
    Type: Application
    Filed: August 20, 2007
    Publication date: December 27, 2007
    Inventors: Sugitaka OTEKI, Yuji Takahashi, Yoshiyuki Namizuka, Hideto Miyazaki, Yasuyuki Nomizu, Hiroyuki Kawamoto, Rie Ishii, Takeharu Tone, Hiroaki Fukuda, Shinya Miyazaki, Fumio Yoshizawa
  • Patent number: 7292372
    Abstract: An image processing apparatus is provided with a detector for detecting a dot image portion or a non-dot image portion from a binarized image data representing an image, and an image processing section for carrying out a different image processing with respect to the binarized image data depending on a detection result of the detector.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: November 6, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroaki Fukuda, Hiroyuki Kawamoto
  • Patent number: 7274486
    Abstract: An image data correcting device eliminates a back projection image without eliminating an image corresponding to a low-intensity halftone image. An intensity difference detection part detects an intensity difference between first image data corresponding to a part of a predetermined small area and second image data corresponding to the remaining parts of the predetermined small area. A halftone detection part determining whether the first image data corresponds to a halftone image. An intensity change part changes an intensity of the first image data to a predetermined low intensity, when the intensity difference is equal to or smaller than a first predetermined value and the first image data does not correspond to the halftone image and the intensity of the first image data is equal to or smaller than a second predetermined value.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: September 25, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuji Takahashi, Hiroyuki Kawamoto, Hiroaki Fukuda
  • Patent number: 7272737
    Abstract: The image processing device comprises a first function block section formed of functional blocks which require a supply of power so as to maintain the image processing device in an operating state when the power supply is on, and a second function block section formed of functional blocks which need not be supplied with the power so as to maintain the image processing device in an operating state even when the power supply is on. The supply of power to the second function block section can be stopped when desired, while continuing the supply of power to the first function block section, thereby saving the power.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: September 18, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Sugitaka Oteki, Yuji Takahashi, Yoshiyuki Namizuka, Hideto Miyazaki, Yasuyuki Nomizu, Hiroyuki Kawamoto, Rie Ishii, Takeharu Tone, Hiroaki Fukuda, Shinya Miyazaki, Fumio Yoshizawa
  • Publication number: 20070201060
    Abstract: An input receiving unit receives an input of image data as either a reuse data format with an undefined output destination or a re-output data format with a defined output destination. An image processing unit performs a different image processing on the image data depending on a type of received data format. An accumulating unit accumulates the image data, on which an image processing is performed by the image processing unit, in the received data format in a storage unit.
    Type: Application
    Filed: January 29, 2007
    Publication date: August 30, 2007
    Inventor: Hiroaki FUKUDA
  • Patent number: 7200287
    Abstract: The image processing apparatus is provided with a plural memory controllers, each of which controls a RAM. The memory controllers are connected to an SIMD type arithmetic processing section. A control register is connected to the memory controllers. The control register controls transfer of image data between the RAMs and the SIMD type arithmetic processing section.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: April 3, 2007
    Assignee: Ricoh Company, Ltd
    Inventors: Hiroaki Fukuda, Yoshiyuki Namizuka, Hideto Miyazaki, Shinya Miyazaki, Yasuyuki Nomizu, Sugitaka Oteki, Takako Satoh, Takeharu Tone, Fumio Yoshizawa, Yuji Takahashi, Hiroyuki Kawamoto, Rie Ishii
  • Patent number: 7175914
    Abstract: In a heat exchanger having tubes and fins, a polyaniline film made of polyaniline and/or a derivative thereof is formed on the surfaces of the tubes and the fins. This polyaniline film is imparted with at least one hydrophilic functional group selected from the class consisting of a primary amino group, a secondary amino group, a tertiary amino group, an ammonium group, a nitric acid group, a carboxyl group, a sulfonic acid group, a phosphonic acid group and a hydroxyl group. Accordingly, the surfaces of the tubes and the fins has good water wettability while maintaining deodorizing and sterilizing functions.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: February 13, 2007
    Assignee: Denso Corporation
    Inventors: Tomomi Takagi, Hitoshi Kuno, Hiroaki Fukuda, Yasushi Furukawa, Osamu Kasebe
  • Patent number: 7161714
    Abstract: Documents are read and the read image data and the information about the size of the document is stored in a memory. A factor of enlargement/reduction is calculated based on the stored size information. An image processor 204 interpolates the image data based on the calculated enlargement/reduction factor and reproduces the enlarged/reduced document.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: January 9, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiyuki Namizuka, Hideto Miyazaki, Shinya Miyazaki, Sugitaka Oteki, Hiroyuki Kawamoto, Yuji Takahashi, Rie Ishii, Hiroaki Fukuda, Fumio Yoshizawa, Takeharu Tone, Yasuyuki Nomizu