Patents by Inventor Akito Iwamoto

Akito Iwamoto 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: 10544564
    Abstract: The present invention aims to improve the strength of the portion of the swing frame for attaching the swing motor apparatus while reducing cost. A bottom plate of a swing frame is divided into a center bottom plate segment to which the swing motor apparatus mounting portion is attached, a front bottom plate segment that is positioned to the front side of the center bottom plate segment and to which the center joint mounting portion is attached, and a rear bottom plate segment positioned to the rear side of the center bottom plate segment, wherein: the center, front, and rear bottom plate segments and are formed integrally by welding; and the plate thickness of the center bottom plate segment is thicker than the plate thickness of the front bottom plate segment and the rear bottom plate segment.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: January 28, 2020
    Assignee: Caterpillar SARL
    Inventors: Takeshi Tsuneyoshi, Takahiro Iwamoto, Takeshi Nakamura, Akito Nakai, Kentaro Nakayama, Dharmesh Kumar, Koichi Andatsu
  • Patent number: 5199081
    Abstract: A system comprises a form of a predetermined format having an area for the facial image, an area for a monochrome image constituting a part of the ID information and an area for a character image constituting the other part of the ID information, image reader for reading the image on the form to output image signals from the areas, processing units for processing the image signals from the areas output from the image reader to fit the recording format, and a recorder responsive to image signals processed by the processing units for recording the facial image, the monochrome image and the character image.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: March 30, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tutomu Saito, Akito Iwamoto
  • Patent number: 5183347
    Abstract: An apparatus for printing images on a booklet comprises, first and second paired pinch rollers for conveying pages of the opened booklet to a printing head, located between these paired pinch rollers, a rotatable platen opposed to the printing head and located between the paired pinch rollers, guide plate for guiding one page of the opened booklet to the platen, and a press member for fixing the free end of the one page to the platen. The second paired rollers hold the other page of the booklet but may slipe the page when the free end of the one page is fixed onto the platen thereby adding tension to the other page of the booklet as the platen is rotated. The layout of the recorded images are changed and then printed on the page.
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: February 2, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kazuhiko Higuchi, Shuzo Hirahara, Tutomu Saito, Hitoshi Nagato, Akito Iwamoto
  • Patent number: 5028991
    Abstract: A color multi-function type copying machine is disclosed which includes an image input unit for optically sensing an input image and generating an image signal. A function memory stores an ink color used in a color frame to be written in the input image in order to designate its partial image region and a specific image edit function assigned to the ink color and desired to be executed by an operator so that the ink color and the specific image edit function can be rewritten. When a closed loop-like color frame of a selected color is written in the input image, a color frame region detecting unit detects a shape and a color of the color frame. In response to the detection result, the memory is accessed to determine an image edit function corresponding to a first selected ink color of the detected color frame. A color edit unit executes one or a plurality of image signal processing corresponding to the determined image edit function for the input image signal.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: July 2, 1991
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hidekazu Sekizawa, Akito Iwamoto, Shuzo Hirahara, Naofumi Yamamoto, Tutomu Saito, Kazuhiko Higuchi, Yuzo Koike
  • Patent number: 4897668
    Abstract: In an electrothermal printing apparatus, ink ribbon is fed in a predetermined direction and is contacted with a recording electrode and a return electrode which is located upstream of the predetermined direction with respect to the recording electrode. A signal current is supplied from the recording electrode to a conductive layer of the ink ribbon through a resistive layer and the signal current supplied to the conductive layer is supplied to the return electrode through the resistive layer. Heat is generated at a portion of the ink ribbon, which is contacted with the recording electrode and is applied to the ink layer through the conductive layer, thereby printing an ink of the ink layer to a paper.
    Type: Grant
    Filed: March 2, 1988
    Date of Patent: January 30, 1990
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hitoshi Nagato, Tadayoshi Ohno, Tsutomu Kanai, Akito Iwamoto
  • Patent number: 4827335
    Abstract: A color reading apparatus having a document table upon which the documents to be read are placed. The document table is formed of transparent glass which is illuminated by a light source, the light source being driven by a light source driver. An image of a document to be read is focused on an image sensor through a focusing lens and through first and second color separation filters. Each of the color separation filters have first and second filter elements which are formed on a transparent substrate and are aligned in the direction from which a photosensor array of the image sensor performs scanning. The image sensor is driven by a CCD driver and generates an image signal corresponding to the focused image. The CCD driver is controlled by a control circuit which is connected to a reference clock. The image signal output from the image sensor is amplified by an amplifier and converted to a digital signal by an A/D converter. The digital signal is then supplied to an image signal processing circuit.
    Type: Grant
    Filed: August 21, 1987
    Date of Patent: May 2, 1989
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tutomu Saito, Akito Iwamoto
  • Patent number: 4675727
    Abstract: An optical document reading apparatus which minimizes color moire phenomenon effects including an optical imaging system, and a line image sensor having sensor elements arranged in a line and color filter elements disposed on the sensor elements. A plurality of sensor elements are assigned to one pixel of said document, and the line image sensor senses light reflected from the document through the optical imaging system. The apparatus has a magnification condition which is determined from a distance between the document and the optical imaging system and a distance between the optical imaging system and the image sensor. The magnification is selected to be such that the optical imaging system does not precisely image the document onto the image sensor.
    Type: Grant
    Filed: March 20, 1985
    Date of Patent: June 23, 1987
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hidekazu Sekizawa, Akito Iwamoto
  • Patent number: 4661843
    Abstract: A color copying apparatus includes a color image sensor, an image information signal processing unit, and a color printer. The apparatus converts the three color component signals from the color image sensor into a luminance signal component and color difference signal components. At least one of the luminance signal component and the color difference signal components is subject to a nonlinear conversion. For density conversion between an input image and an output image, the luminance signal component is subject to a nonlinear conversion in a nonlinear conversion circuit.
    Type: Grant
    Filed: July 9, 1985
    Date of Patent: April 28, 1987
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hidekazu Sekizawa, Akito Iwamoto, Naofumi Yamamoto, Hitoshi Yoneda
  • Patent number: 4560280
    Abstract: The distance between first and second grating-like structures such as a shadow mask and a faceplate of a color picture tube or the size of pattern elements of the second grating-like structure such as black stripes formed on the inner surface of the faceplate is optically measured. The shadow mask has a periodic pattern of apertures or slots and the faceplate has a periodic pattern of the black stripes. An optical system located between a light source and an assembly of the first and second grating-like structures applies parallel rays of light to the assembly and is arranged to vary an incident angle of the parallel rays to the assembly. A photodetector detects the quantity of light passed through the assembly to produce an electric signal whose amplitude periodically varies with variation in the incident angle of the parallel rays to the assembly.
    Type: Grant
    Filed: August 17, 1983
    Date of Patent: December 24, 1985
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Akito Iwamoto, Hidekazu Sekizawa
  • Patent number: 4510866
    Abstract: In an apparatus which measures an area factor of an image portion of an image-bearing member, such as a printing plate used in an offset press, having image and non-image portions with different reflectivities, a single light source and a single photoelectric conversion element are used for measuring reflected light from the image-bearing member by optically scanning the image-bearing member. An arithmetic operation unit is provided so that the reflected light data are measured on the basis of electrical signals from the photoelectric conversion element each time a light beam moves for a unit distance in the X axis direction of the image-bearing member, and the corresponding reflected light data are added in the Y axis direction to obtain area data for each unit region in the X axis direction.
    Type: Grant
    Filed: December 13, 1982
    Date of Patent: April 16, 1985
    Assignees: Tokyo Shibaura Denki Kabushiki Kaisha, Toshiba Machine Co., Ltd.
    Inventors: Hidekazu Sekizawa, Akito Iwamoto, Kousaku Togashi, Hideo Fujie
  • Patent number: 4408883
    Abstract: An apparatus for determining the average size of fundamental patterns contained in a given region of an object to be inspected, which includes Fourier transform means for producing output data corresponding to a Fourier transform pattern image of the given region of the object, and processor means for processing the output data to provide the actual pattern size information. The Fourier transform means includes a Fourier converter for providing the output data corresponding to Fourier transform patterns. The processor means includes an extractor coupled to the Fourier transform means for extracting a single magnitude data (I.sub.n) representing the order n of spatial frequency component (e.g. 200) from the output data, the magnitude of the order n component changing with variation (e.g. .DELTA.a.sub.H) of the size of patterns; and a data processor coupled to the extractor for determining the average size of patterns in the given region according to the single magnitude (I.sub.
    Type: Grant
    Filed: March 4, 1981
    Date of Patent: October 11, 1983
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Akito Iwamoto, Hidekazu Sekizawa
  • Patent number: 4360269
    Abstract: The apparatus of this invention is used for inspecting defects in a periodic pattern. The apparatus comprises a device for forming a Fourier transformed pattern of the periodic pattern and a filter for passing predetermined spatial frequency ranges of the Fourier transformed pattern. The predetermined spatial frequency ranges are lower than a spatial frequency which coincides with a first order diffraction of the Fourier transformed pattern.
    Type: Grant
    Filed: October 30, 1980
    Date of Patent: November 23, 1982
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Akito Iwamoto, Hidekazu Sekizawa
  • Patent number: 4330775
    Abstract: An apparatus for inspecting a defect in a periodic pattern on an object is provided with a laser device for projecting a laser beam toward the object. A mechanism further included in the defect inspecting apparatus rotates the object in a plane orthogonal to an optical path of the laser beam while moving in the same plane. A spatial band-pass filter is located at the backward focal plane of a lens for Fourier-transforming the laser beam including the information of the periodic pattern and a defect, the laser beam coming from the object. The band-pass filter has a spot-like area for blocking the zeroth order diffraction light transmitted through the periodic pattern a peripheral light blocking area for blocking the first and higher order diffracted light beams, and a ring-like light transmission area permitting the light beam component including the information of a defect to pass therethrough, the light transmission area being located between the spot-like area and the peripheral area.
    Type: Grant
    Filed: March 14, 1980
    Date of Patent: May 18, 1982
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Akito Iwamoto, Hidekazu Sekizawa