Patents by Inventor Hirokazu Takenaka

Hirokazu Takenaka 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).

  • Publication number: 20140152852
    Abstract: A predetermined-area management system is configured to communicate with a communication terminal. The predetermined-area management system includes: a storage unit that stores image identification information for identifying image data and predetermined-area information for identifying a predetermined area in the image data in association with each other; a receiving unit that receives image identification information that is transmitted from the communication terminal; an extraction unit that searches the storage unit by using the image identification information received by the receiving unit so as to extract associated predetermined-area information; and a transmitting unit that transmits, to the communication terminal, the predetermined-area information extracted by the extraction unit.
    Type: Application
    Filed: December 3, 2013
    Publication date: June 5, 2014
    Inventors: Yoichi ITO, Toshiyuki Terashita, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Kensuke Masuda, Satoshi Sawaguchi, Daisuke Bessho, Hiroyuki Satoh, Makoto Shohara
  • Publication number: 20140132709
    Abstract: A wide-angle lens having a field angle larger than 180 degrees includes, in order from an object side to an image side, a front group, a reflection surface, and a back group, wherein the front group includes three lenses having a negative refractive power, the reflection surface is configured to curve an optical axis of the front group at 90 degrees toward the back group, the back group includes four lenses having a positive refractive power, a front principle point is set between a second lens and a third lens from the object side in the front group, and a focal length of an entire system f and a distance between an intersection of the reflection surface and the optical axis of the front group and the front principle point d satisfy the following condition (1) 7.0<d/f<9.0.
    Type: Application
    Filed: July 23, 2012
    Publication date: May 15, 2014
    Inventors: Hiroyuki Satoh, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Kensuke Masuda, Satoshi Sawaguchi, Daisuke Bessho
  • Publication number: 20140078247
    Abstract: An image adjuster includes an area evaluator to calculate an area evaluation value for each color in each of divided areas of each of images captured by a plurality of imaging units, a brightness adjuster to calculate a brightness adjustment value for overlapping divided areas between photographic areas of the images on the basis of the area evaluation value for each color, and an adjustment value calculator to calculate a balance adjustment value for each of the overlapping divided areas from the area evaluation value for each color on the basis of the brightness adjustment value.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 20, 2014
    Inventors: Makoto SHOHARA, Toru Harada, Hirokazu Takenaka, Yoichi Ito, Kensuke Masuda, Hiroyuki Satoh, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Hideaki Yamamoto, Satoshi Sawaguchi, Daisuke Bessho, Shusaku Takasu
  • Publication number: 20140071226
    Abstract: An image capture system including two imaging systems of the same structure each having a wide-angle lens, which includes a front group, a reflection surface, and a rear group arranged in order from an object side, has a field angle larger than 180 degrees, and bends an optical axis of the front group toward the rear group by the reflection surface, and an imaging sensor, obtains an image in a solid angle of 4? radian by combining images imaged by the imaging systems. Each of the two wide-angle lenses includes the reflection surface between the front group and the rear group, the reflection surfaces are made to be common to the two imaging systems. This reduces an interval between lenses nearest to the object side in the front groups of the two wide-angle lenses, thereby reducing a distance between maximum field angles of the two wide-angle lenses.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 13, 2014
    Inventors: Hiroyuki SATOH, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Kensuke Masuda, Satoshi Sawaguchi, Daisuke Bessho, Makoto Shohara, Yoichi Ito, Shusaku Takasu
  • Publication number: 20140071227
    Abstract: An image processor includes a first converter to convert input images into images in a different coordinate system from that of the input images according to first conversion data based on a projection model, a position detector to detect a connecting position of the images converted by the converter, a corrector to correct the first conversion data on the basis of a result of the detection by the position detector, and a data generator to generate second conversion data for image synthesis from the conversion data corrected by the corrector on the basis of coordinate conversion, the second conversion data defining the conversion of the input images.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 13, 2014
    Inventors: Hirokazu TAKENAKA, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hideaki Yamamoto, Kensuke Masuda, Yoichi Ito, Satoshi Sawaguchi, Daisuke Bessho, Hiroyuki Satoh, Makoto Shohara, Shusaku Takasu
  • Publication number: 20140036031
    Abstract: An image capturing apparatus includes image capturing devices; page memories for the image capturing devices, respectively, each page memory storing a piece of image data output from the corresponding image capturing device; a page-memory read unit configured to read pieces of image data stored in the page memories line by line in a time division manner; an image processing unit configured to perform predetermined image processing on the pieces of image data read from the page memories for the image capturing devices line by line in the time division manner; and a write monitoring unit configured to monitor write states of the pieces of image data that are output from the image capturing devices and written into the page memories, and control the page-memory read unit to start reading the pieces of image data from the page memories.
    Type: Application
    Filed: July 26, 2013
    Publication date: February 6, 2014
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tomonori TANAKA, Noriyuki TERAO, Yoshiaki IRINO, Toru HARADA, Hideaki YAMAMOTO, Hirokazu TAKENAKA, Satoshi SAWAGUCHI, Nozomi IMAE, Daisuke BESSHO, Kensuke MASUDA, Hiroyuki SATOH, Makoto SHOHARA, Shusaku TAKASU
  • Publication number: 20130326419
    Abstract: A communication terminal displays thumbnails for predetermined-region images in a panoramic image and accepts a selection of a predetermined thumbnail so as to display the predetermined-region image corresponding to the accepted thumbnail. This brings about an effect that a user can easily find a desired panoramic image or a desired predetermined-region image in the panoramic image.
    Type: Application
    Filed: May 24, 2013
    Publication date: December 5, 2013
    Inventors: Toru HARADA, Hiroyuki SATOH, Noriyuki TERAO, Yoshiaki IRINO, Tomonori TANAKA, Nozomi IMAE, Hirokazu TAKENAKA, Hideaki YAMAMOTO, Kensuke MASUDA, Satoshi SAWAGUCHI, Satoshi TANEICHI, Masanori WATANABE, Takeshi ITO
  • Publication number: 20130242040
    Abstract: An imaging system includes an imaging body having an optical system and an imaging element, a power supplier configured to supply power to the imaging element, and a housing configured to hold the imaging body and the power supplier, wherein the optical system includes at least one optical element projecting from the housing, and a distance AP between a gravity center A of a portion including the optical system and a gravity center P of the entire imaging system and a distance BP between a gravity center B of the power supplier and the gravity center P of the entire imaging system satisfy the following condition.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 19, 2013
    Inventors: Kensuke MASUDA, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Satoshi Sawaguchi, Daisuke Bessho, Hiroyuki Satoh, Makoto Shohara
  • Publication number: 20130235149
    Abstract: An image capturing apparatus for capturing an image of a subject using a plurality of imaging devices and a plurality of lenses for the imaging devices, respectively, includes a plurality of buffer memories for the imaging devices, respectively, each buffer memory being configured to store image data output from the corresponding imaging device; and a single image processor configured to read the image data stored in the buffer memories in a time division manner and perform predetermined image processing on the image data.
    Type: Application
    Filed: February 27, 2013
    Publication date: September 12, 2013
    Applicant: Ricoh Company, Limited
    Inventors: Tomonori TANAKA, Noriyuki TERAO, Yoshiaki IRINO, Toru HARADA, Hideaki YAMAMOTO, Hirokazu TAKENAKA, Satoshi SAWAGUCHI, Nozomi IMAE, Daisuke BESSHO, Kensuke MASUDA, Hiroyuki SATOH, Makoto SHOHARA
  • Patent number: 8446634
    Abstract: A first color conversion unit converts RGB signals from a line input unit to L*a*b* signals. A lightness range compression unit matches the lightness range of the input color signals with that of an output gamut. If the maximum saturation point on an input line is outside the output gamut, an input line correction unit corrects the point in such a manner that it is mapped onto the surface of the output gamut. If a near-surface determination unit determines that the corrected line is not located on the surface of the output gamut, an out-of-gamut mapping unit maps it onto the surface of the output gamut, whereas if it determines that the corrected line is located near the surface of the output gamut, the surface mapping unit maps all points on the surface of the output gamut. A second color conversion unit converts the mapped L*a*b* signals to CMYK signals.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: May 21, 2013
    Assignee: Ricoh Company, Limited
    Inventor: Hirokazu Takenaka
  • Publication number: 20130057542
    Abstract: An image processing apparatus projecting 3D image data to 2D planar image data includes: an accumulation unit that accumulates the 3D image data having position coordinates and pixel values; an acquisition unit that acquires a display parameter, including a zoom parameter for changing image size, for the 2D image data to be created; a creation unit that creates the 2D image data from the 3D image data with the display parameter by determining a half view angle of the 3D image data and performing inverse projection transformation on the 2D image data while changing, in accordance with a change in the half view angle caused by the change in image size specified by the zoom parameter, an inverse projection transformation method applied to position coordinates used to create the 2D image data; and a display unit that displays the created 2D image data as a 2D planar image.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 7, 2013
    Applicant: RICOH COMPANY, LTD.
    Inventors: Hirokazu TAKENAKA, Noriyuki TERAO, Toru HARADA, Yoshiaki IRINO, Tomonori TANAKA, Hideaki YAMAMOTO, Nozomi IMAE, Daisuke BESSHO, Satoshi SAWAGUCHI, Kensuke MASUDA, Hiroyuki SATOH
  • Publication number: 20130050408
    Abstract: An imaging device includes two imaging optical systems each of the imaging optical systems including a wide-angle lens having an angle of view wider than 180 degrees, and an imaging sensor configured to image an image by the wide-angle lens, so as to obtain an image in a solid angle of 4? radian by synthesizing the images by the respective imaging optical systems, wherein the wide-angle lens of each of the imaging optical systems includes, in order from an object side to an image side, a front group having a negative power, a reflection surface and a back group having a positive power, and is configured to bend an optical axis of the front group by the reflection surface at 90 degrees toward the back group.
    Type: Application
    Filed: August 27, 2012
    Publication date: February 28, 2013
    Inventors: Kensuke MASUDA, Noriyuki Terao, Yoshiaki Irino, Tomonori Tanaka, Nozomi Imae, Toru Harada, Hirokazu Takenaka, Hideaki Yamamoto, Satoshi Sawaguchi, Daisuke Bessho, Hiroyuki Satoh, Makoto Shohara
  • Publication number: 20130050405
    Abstract: An imaging system includes n or more photographing optical system having an imaging optical system having a full angle of view A (degree) larger than 360/n where n is a natural number of 2 or more and a two-dimensional imaging element configured to convert light condensed by the imaging optical system into an image signal, wherein in the imaging optical system of each of the imaging optical systems, a magnification per unit angle of view monotonically increases from 0 to 360/n-degree angle of view, and an increase rate of the magnification monotonically decreases to the full angle of view A (degree) after the 360/n-degree angle of view.
    Type: Application
    Filed: August 21, 2012
    Publication date: February 28, 2013
    Inventors: Kensuke MASUDA, Noriyuki TERAO, Yoshiaki IRINO, Tomonori TANAKA, Nozomi IMAE, Toru HARADA, Hirokazu TAKENAKA, Hideaki YAMAMOTO, Satoshi SAWAGUCHI, Hiroyuki SATOH
  • Patent number: 8223401
    Abstract: An information acquiring unit acquires information indicating whether a color material used at least for image formation is saved. An image-information generating unit creates, when the information acquiring unit acquires the information for saving the color material, image information using the color material of which consumption is saved.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: July 17, 2012
    Assignee: Ricoh Company, Limited
    Inventors: Noriko Miyagi, Satoshi Ouchi, Hiroyuki Shibaki, Yuki Matsushima, Hirokazu Takenaka, Atsushi Togami
  • Publication number: 20100231935
    Abstract: A first color conversion unit converts RGB signals from a line input unit to L*a*b* signals. A lightness range compression unit matches the lightness range of the input color signals with that of an output gamut. If the maximum saturation point on an input line is outside the output gamut, an input line correction unit corrects the point in such a manner that it is mapped onto the surface of the output gamut. If a near-surface determination unit determines that the corrected line is not located on the surface of the output gamut, an out-of-gamut mapping unit maps it onto the surface of the output gamut, whereas if it determines that the corrected line is located near the surface of the output gamut, the surface mapping unit maps all points on the surface of the output gamut. A second color conversion unit converts the mapped L*a*b* signals to CMYK signals.
    Type: Application
    Filed: March 5, 2010
    Publication date: September 16, 2010
    Inventor: Hirokazu Takenaka
  • Publication number: 20090147313
    Abstract: An information acquiring unit acquires information indicating whether a color material used at least for image formation is saved. An image-information generating unit creates, when the information acquiring unit acquires the information for saving the color material, image information using the color material of which consumption is saved.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 11, 2009
    Inventors: Noriko Miyagi, Satoshi Ouchi, Hiroyuki Shibaki, Yuki Matsushima, Hirokazu Takenaka, Atsushi Togami
  • Patent number: 7433082
    Abstract: An image processing apparatus creates attribute information that indicates characteristics of an image from an image data, stores the attribute information created, determines, when a new image data is input from outside, whether the attribute information created from the new image data exists in the attribute information stored. If the attribute information created from the new image data is in the attribute information stored, the image processing apparatus specifies the attribute information, and processes the image data based on the attribute information specified.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: October 7, 2008
    Assignee: Ricoh Company, Limited
    Inventors: Hirokazu Takenaka, Hiroyuki Shibaki, Satoshi Ouchi
  • Patent number: 7327874
    Abstract: An image processing apparatus includes a first calculating unit that calculates a first feature amount from a color image signal, a first processing unit that processes the color image signal based on the first feature amount to generate a processed signal, a compressing unit that compresses the processed signal to generate a compressed signal, a storage unit that stores the compressed signal, a decompressing unit that decompresses the compressed signal to generate a decompressed signal, a second calculating unit that calculates a second feature amount from the decompressed signal, and a second processing unit that processes the decompressed signal based on the second feature amount. The second feature amount is multinary.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: February 5, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Shibaki, Noriko Miyagi, Hirokazu Takenaka, Satoshi Ouchi
  • Patent number: 7128394
    Abstract: An apparatus for printing color inkjet images includes an image processing unit which processes source color data to generate output color data together with a signal indicative of an order of ink squirts in which a plurality of inks of respective colors are squirted onto a given pixel, and an inkjet print unit which is configured to squirt the plurality of inks in different orders of ink squirts, and prints color images based on the output color data by squirting the inks in the order of ink squirts indicated by the signal.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: October 31, 2006
    Assignee: Ricoh Company, Ltd.
    Inventor: Hirokazu Takenaka
  • Publication number: 20060071970
    Abstract: An apparatus for printing color inkjet images includes an image processing unit which processes source color data to generate output color data together with a signal indicative of an order of ink squirts in which a plurality of inks of respective colors are squirted onto a given pixel, and an inkjet print unit which is configured to squirt the plurality of inks in different orders of ink squirts, and prints color images based on the output color data by squirting the inks in the order of ink squirts indicated by the signal.
    Type: Application
    Filed: November 29, 2005
    Publication date: April 6, 2006
    Inventor: Hirokazu Takenaka