Patents by Inventor Takayuki Nabeshima

Takayuki Nabeshima 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: 5987175
    Abstract: An image forming apparatus includes an encode process unit for: (a) allocating image data of an original document into blocks containing a predetermined pixel matrix, and (b) determining from the image data in each block a mean value information and a gradient range exponent for each block; a series copy data generating unit for generating reduction image data for a plurality of reduction images by using the mean value information for each of the blocks as image data for the reduction images so that each pixel of the reduction images corresponds to a respective one of the plurality of blocks of the original document image data; and an image forming unit for forming images based on the reduction image data generated by the series copy data generating unit.
    Type: Grant
    Filed: May 16, 1996
    Date of Patent: November 16, 1999
    Assignee: Minolta Co., Ltd.
    Inventors: Shoji Imaizumi, Shigeru Moriya, Takayuki Nabeshima
  • Patent number: 5969351
    Abstract: A semi-micro liquid chromatograph/mass spectrometer apparatus has an ion source. The space from the end portion of a flow passage of a liquid chromatograph shell to a vaporization portion is closed so as to prevent the inflow of a gas from outside the ion source into the space. Further, the nebulization and vaporization portions are joined together and heated by a common heater. Dilution of a sample to be analyzed is prevented, and high sensitivity detection becomes possible in a low velocity liquid chromatograph/mass spectrometer.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: October 19, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Takayuki Nabeshima, Minoru Sakairi, Yasuaki Takada, Yukiko Hirabayashi, Hideaki Koizumi
  • Patent number: 5930008
    Abstract: The present invention has the objective of providing an image reading device capable of normally excellent reading of document images without influence from a soiled or damaged glass document platen, and eliminates the influence of a soiled or damaged glass surface of a document platen by normally reading document images using a new glass surface which is neither soiled not damaged by moving the document platen via a platen moving lever.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: July 27, 1999
    Assignee: Minolta Co., Ltd.
    Inventors: Takayuki Nabeshima, Keiji Kusumoto, Makoto Kumagai, Katsuaki Tajima
  • Patent number: 5898175
    Abstract: A mass spectrometer employing an ion source includes a capillary for spraying therethrough liquid into the atmospheres and an orifice through which a portion in the vicinity of a tip of the capillary is inserted, the orifice being designed in such a way that gases are caused to flow up to the tip of the capillary along a peripheral wall face of the capillary. The flow rate of gas in the vicinity of the tip of the capillary is about the sonic velocity, and a voltage is applied across the liquid flowing through the capillary and the orifice or an electrode arranged in the vicinity of the tip of the capillary.
    Type: Grant
    Filed: September 5, 1996
    Date of Patent: April 27, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Atsumu Hirabayashi, Yukiko Hirabayashi, Minoru Sakairi, Yasuaki Takada, Takayuki Nabeshima, Hideaki Koizumi
  • Patent number: 5889884
    Abstract: An image forming apparatus automatically identifying top and bottom of document image based on characteristics with regard to shapes or positions of data, etc. recorded on document. Distribution states of pixel cumulative values in main scanning direction and sub scanning direction of image signals provided by scanning the document, are analyzed and top and bottom of the document image is identified from the result of analysis. Further, it is possible to identify the top and bottom of the document image by analyzing the distribution states the pixel cumulative values in the main scanning direction and the sub scanning direction of the image signals and identifying letter series regions and line segment regions displaced therefrom.
    Type: Grant
    Filed: May 23, 1996
    Date of Patent: March 30, 1999
    Assignee: Minolta Co., Ltd.
    Inventors: Hideyuki Hashimoto, Shoji Imaizumi, Takayuki Nabeshima, Kazuomi Sakatani
  • Patent number: 5825027
    Abstract: A mass spectrometer comprising an ionization means for ionizing sample compounds to be analyzed mass spectro-scopically in an atmospheric pressure, a sample solution supply means for supplying a solution containing the sample compounds to the ionization means, means for feeding the ions formed by the ionization means through an aperture disposed in an electrode into a vacuum region and a ion trap type mass spectroscopic means for mass spectroscopically analyzing ions entered through the aperture into the vacuum region, in which an ion decelerating electric field forming means is disposed between the electrode disposed with the aperture and an electrode disposed with an ion entrance opening for entering the ions into the ion trap type mass spectroscopic means for forming an electric field for decelerating the ions, and the ions injected to the ion trap mass spectroscopic means is lowered.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: October 20, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Yasuaki Takada, Minoru Sakairi, Takayuki Nabeshima, Yukiko Hirabayashi, Hideaki Koizumi
  • Patent number: 5805303
    Abstract: A method of image processing includes the steps of allocating image data of a document into a plurality of blocks of a predetermined pixel matrix; determining a gradient range exponent and a mean value information for each of the blocks based on the image data contained in each of the blocks; encoding the image data of each pixel of each of the blocks into code data based on the mean value information and gradient range exponent for the respective block so that the code data defines each pixel with fewer gradation levels than the image data; determining whether or not a mutually adjoining block is related to a solid image of a same density relative to a block subject to the encoding process; and executing a run length encoding process for a batch of mean value information, gradient range exponent, and code data based on a run length of adjoining blocks discriminated as related to a solid image of the same density.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: September 8, 1998
    Assignee: Minolta Co., Ltd.
    Inventors: Shoji Imaizumi, Takayuki Nabeshima, Shigeru Moriya
  • Patent number: 5663560
    Abstract: A method in which cutting of small droplets, neutral particles or photons through to a slit provided between a differential pumping portion and a mass analysis portion is combined with slight deflection of ions just before introduction of the ions into the mass analysis portion so that noises are greatly reduced without reduction of signals to thereby improve the signal-to-noise ratio which is an index of detecting sensitivity or lower limit.
    Type: Grant
    Filed: November 8, 1995
    Date of Patent: September 2, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Minoru Sakairi, Tadao Mimura, Yasuaki Takada, Takayuki Nabeshima, Hideaki Koizumi
  • Patent number: 5572124
    Abstract: In an inspection method which generates a static magnetic field, a gradient magnetic field and a radio frequency magnetic field, detects nuclear magnetic resonance signals from an inspection object, computes and processes the nuclear magnetic resonance signals so detected and outputs the result of computation processing, a gradient magnetic field for generating signal attenuation by diffusion and an oscillating gradient magnetic field for generating chemical shift information and spatial information of the materials contained in the inspection object are applied, separation and acquisition of spatial information of each material contained in the inspection object are simultaneously conducted, and a measurement time is shortened.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: November 5, 1996
    Assignees: Hitachi, Ltd., Hitachi Medical Corporation
    Inventors: Yoshitaka Bito, Satoshi Hirata, Takayuki Nabeshima, Etsuji Yamamoto
  • Patent number: 5489847
    Abstract: An RF probe for MRI, in which a plurality of unit coils including conductive loops having resonance capacitors and inductors connected with the conductive loops in series are arranged so as to be distant from each other with a predetermined distance, electromagnetic coupling being produced between at least two inductors to remove electromagnetic coupling between the unit coils.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: February 6, 1996
    Assignees: Hitachi, Ltd., Hitachi Medical Corp.
    Inventors: Takayuki Nabeshima, Tetsuhiko Takahashi, Yoshikuni Matsunaga, Etsuji Yamamoto, Kageyoshi Katakura
  • Patent number: 4943824
    Abstract: The present invention relates to a device for measuring object distance or an in-focus position used for a camera in which the object distance of focus adjusting condition are measured in a plurality of distance measuring areas in the photographing scene. The device is so constructed as to judge a main object from weight data in correspondence not only with the object distance of each distance measuring area but with the position thereof in the photographing scene. Further, when there is an object nearer than a predetermined distance, the main object is judged from whether the object has a size larger than a predetermined size in the photographing scene. Furthermore, it is judged from the difference between the object distances of adjacent distance measuring areas whether the objects are the same object.
    Type: Grant
    Filed: November 10, 1988
    Date of Patent: July 24, 1990
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventors: Takayuki Nabeshima, Toru Matsui, Yukio Maekawa