Patents by Inventor Yoshinori Yamaguchi
Yoshinori Yamaguchi 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).
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Patent number: 6091844Abstract: An image processing device and method for identifying an input image and a copier including such an image processing device and method. The image processing device forms a gradated image from the input image, determines whether the gradated image includes a specified pattern, extracts a portion of the input image corresponding to the specified pattern, and compares the extracted portion of the input image with a reference pattern to determine a degree of resemblance between the extracted portion of the input image and the reference pattern.Type: GrantFiled: August 20, 1997Date of Patent: July 18, 2000Assignee: Omron CorporationInventors: Tooru Fujii, Genki Yotsui, Tomohiko Hayakawa, Shinya Sonoda, Yoshinori Yamaguchi, Kouichi Oomae
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Patent number: 5942754Abstract: A sample solution is stored in a total reflection cell, and a measuring beam is introduced from an incident optical system to be totally reflected, for measuring a total reflection absorption spectrum. Hydrogen peroxide contained in the sample solution is determined on the basis of absorbance at the position of any absorption peak of the spectrum which is present at 1200 to 1500 cm.sup.-1 or 2600 to 3000 cm.sup.-1. Hydrogen peroxide contained in an aqueous solution can be simply quantitatively analyzed through optical analysis.Type: GrantFiled: November 27, 1995Date of Patent: August 24, 1999Assignee: Kyoto Dai Ichi Kagaku Co., Ltd.Inventors: Yoshinori Yamaguchi, Masayuki Yagi, Dou Xiaoming, Emi Ashibe, Harumi Uenoyama
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Patent number: 5923790Abstract: The present invention provides a method and an apparatus for reliably detecting the upside and downside vertical direction of an image, such as characters on a document. The method involves judging the upside and downside vertical direction of the characters in each line, and specifying the upside and downside vertical direction of the characters on the entire image on the basis of the vertical directions detected line by line.Type: GrantFiled: January 23, 1996Date of Patent: July 13, 1999Assignee: Omron CorporationInventors: Tetsuya Miwa, Yoshinori Yamaguchi
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Patent number: 5870188Abstract: An excitation beam from a laser is passed through a bandpass filter, and applied to a sample by a collimator lens. An optical adjusting part comprising a camera lens and a converging lens is provided for receiving scattered light from the sample, so that the camera lens receives the scattered light and converts the same to a parallel beam. The converging lens has chromatic aberration, and receives and converges the parallel beam from the camera lens. An inlet slit of a spectroscope is provided as an inlet port on a converging position by the converging lens. This inlet slit is a circular hole having a diameter of about 200 .mu.m. The inlet slit is arranged on a position for converging anti-Stokes-Raman scattered light through the chromatic aberration of the converging lens.Type: GrantFiled: September 19, 1996Date of Patent: February 9, 1999Assignee: Kyoto Dei-ichi, Kagaku Co. Ltd.Inventors: Yukihiro Ozaki, Yoshinori Yamaguchi, Xiaoming Dou, Harumi Uenoyama
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Patent number: 5764815Abstract: There is disclosed an image communication apparatus, such as a facsimile apparatus, with function of displaying the received image. The apparatus is provided with a memory unit and a control unit, and is capable of storing the received image and displaying it upside down by the unit of a page, in order to facilitate the viewing of the image in case it is erroneously sent upside down.Type: GrantFiled: July 8, 1994Date of Patent: June 9, 1998Assignee: Canon Kabushiki KaishaInventors: Yoshinori Yamaguchi, Kenichiro Sugiura, Masanao Yasuda, Naoshi Inoue, Hideyuki Kobayashi, Michihei Murayama
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Patent number: 5754289Abstract: A Raman scattered light measuring apparatus comprises a near infrared semiconductor laser diode as a light source for irradiating a sample with excitation light, while a photoreceiving part for receiving Raman scattered light from the sample comprises a bandpass filter having a vibration wavenumber which is specific to a sample component to be measured as a central wavelength of its transmission region, and a detector consisting of a photodiode of Ge, InAs or InGaAs or a photomultiplier having sensitivity in a near infrared region for detecting Raman scattered light which is transmitted through the bandpass filter.Type: GrantFiled: December 27, 1996Date of Patent: May 19, 1998Assignee: Kyoto Dai-ichi Kagaku Co., Ltd.Inventors: Yukihiro Ozaki, Xiaoming Dou, Yoshinori Yamaguchi, Harumi Uenoyama
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Patent number: 5753449Abstract: An excitation beam generated from a light source is separated into a measuring beam and a reference beam by an optical path adjusting optical system including a beam splitter, so that the measuring beam is applied to a sample in a cell. Raman scattering light which is generated from the sample is detected by a spectral detector including a spectroscope through a scattering light path adjusting optical system and a wavelength selector. In a spectrum obtained by the spectral detector, a peak of Raman scattering in which wavenumber shift from the wavelength of the excitation beam is present at 800 to 920 cm.sup.-1 is employed to make quantitative measurement of hydrogen peroxide. Hydrogen peroxide contained in an aqueous solution can be simply quantitatively analyzed through optical analysis means.Type: GrantFiled: November 27, 1995Date of Patent: May 19, 1998Assignee: Kyoto Dai-ich Kagaku Co., Ltd.Inventors: Yoshinori Yamaguchi, Harumi Uenoyama, Masayuki Yagi, Dou Xiaoming
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Patent number: 5750410Abstract: A total reflection cell has a total reflection prism on at least one surface thereof. A mixed solution containing a gold colloid labelled antibody which is adsorbed on a gold colloid is stored in the total reflection cell, and a sample solution containing an antigen causing antigen-antibody reaction with the antibody is added thereto for forming a gold colloid labelled immune complex. A measuring beam is introduced into the total reflection prism from an incident optical system at an angle .theta. of incidence causing total reflection and an outgoing beam from the total reflection prism is received by a measuring optical system, thereby measuring absorption by the gold colloid labelled immune complex and carrying out qualification and determination of the antigen.Type: GrantFiled: January 26, 1996Date of Patent: May 12, 1998Assignee: Kyoto Dai-ichi Kagaku Co., Ltd.Inventors: Xiaoming Dou, Yoshinori Yamaguchi, Harumi Uenoyama
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Patent number: 5741660Abstract: As to reaction solutions in which the amount of each potassium ferricyanate, glucose oxidase and glucose substrate are set at a constant value while glucose concentrations are varied, intensity changes of peaks at a shift wavenumber of 2081 cm.sup.-1 in light scattering spectra are measured every 10 seconds, the maximum values of the intensity changes of the peaks at the respective glucose concentrations obtained, for obtaining a calibration curve from correlations between the maximum values of the reaction velocities and the glucose concentrations. The calibration curve is employed for carrying out quantitative measurement of an unknown sample.Type: GrantFiled: January 30, 1996Date of Patent: April 21, 1998Assignee: Kyoto Dai-ichi Kagaku Co., Ltd.Inventors: Xiaoming Dou, Yutaka Yamasaki, Harumi Uenoyama, Yoshinori Yamaguchi
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Patent number: 5712167Abstract: In order to quantitatively measure an Amadori compound by a simple optical method utilizing light scattering, a sample containing an Amadori compound which is stored in a cell is irradiated with excitation light from an He--Ne laser unit so that scattered light from the sample is received and separated into its spectral components for obtaining a light scattering spectrum, and a light scattering peak existing at 820 to 840 cm.sup.-1, 1655 to 1660 cm.sup.-1, 2000 to 2020 cm.sup.-1, 2080 to 2100 cm.sup.-1, 2460 to 2470 cm.sup.-1 or 2530 to 2600 cm.sup.-1 in shift wavenumber with respect to the excitation wavelength in the light scattering spectrum is detected by a detector. The saccharide concentration or the saccharification ratio of the Amadori compound is measured by a calibration curve through the peak intensity or the peak integral value of the light scattering peak.Type: GrantFiled: July 17, 1996Date of Patent: January 27, 1998Assignee: Kyoto Dai-Ichi Kagaku Co., Ltd.Inventors: Yoshinori Yamaguchi, Xiaoming Dou, Masayuki Yagi, Harumi Uenoyama
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Patent number: 5706104Abstract: An image receiving apparatus is disclosed which has a printer for printing image data, an interface device for storing received image data into an outside memory detachable to the apparatus and for reading out the image data from the outside memory, and a selector for selecting whether received image data is to be printed by the printer or is to be stored into the outside memory.Type: GrantFiled: January 18, 1994Date of Patent: January 6, 1998Assignee: Canon Kabushiki KaishaInventors: Kenichiro Sugiura, Masanao Yasuda, Yoshinori Yamaguchi, Hideyuki Kobayashi, Naoshi Inoue, Michihei Murayama
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Patent number: 5635949Abstract: Each pixel consists of an image electrode formed on a first insulating substrate, a ferroelectrlc material portion formed on the image electrode, a pixel electrode formed on the ferroelectric material layer, a scanning electrode formed on a second insulating substrate, and a liquid crystal portion disposed between the pixel electrode and the scanning electrode. When an input signal is written to the respective pixels, a liquid crystal portion of each of pixels selected for display is supplied with an effective voltage that makes a transmittance of the liquid crystal portion smaller than 50%.Type: GrantFiled: October 17, 1994Date of Patent: June 3, 1997Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshiyuki Shiratsuki, Yoshinori Yamaguchi, Kazuhiro Hayashi, Takehiro Niitsu
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Patent number: 5617205Abstract: Excitation light from a light source is divided into a sample beam and a correction beam by a half mirror, so that the sample beam is converged on a sample in a sample part by convergent lenses. Condenser lenses are provided in order to converge scattered light from the sample on an inlet slit of a spectroscope, and a holographic notch filter which is set to include the wavelength of the excitation light in its notch region is arranged in order to remove the same wavelength component as the excitation light from the scattered light for selecting target light. The target light and the correction beam are guided onto the same optical axis by a half mirror, to be incident upon a polychrometer through the inlet slit and simultaneously detected. The detected value of the target light is corrected by a simultaneously detected intensity of the correction beam.Type: GrantFiled: June 26, 1996Date of Patent: April 1, 1997Assignee: Kyoto Dai-Ichi Kagaku Co., Ltd.Inventors: Xiaoming Dou, Yoshinori Yamaguchi, Harumi Uenoyama, Yung X. Wang
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Patent number: 5464990Abstract: A voltage non-linear device comprises, on an insulating substrate, a bottom electrode film, a voltage non-linear film, and a top electrode film formed in this order, wherein the bottom electrode film, the voltage non-linear film and the top electrode film are, respectively, made of a metal or a metal oxide formed by applying a metallo-organic paste and sintering the thus applied paste. The voltage non-linear film is made of a metal oxide sintered from a mixture of a metallo-organic zn compound and a metallo-organic compound of at least one element selected from Bi, Mn, Co, Cr and Sb. A method for making the voltage non-linear device and metallo-organic compounds useful for the method are also described. Moreover, a liquid crystal display device using the voltage non-linear device and a method for making the display device are described.Type: GrantFiled: September 24, 1993Date of Patent: November 7, 1995Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshiyuki Shiratsuki, Yoshinori Yamaguchi, Kazuhiro Hayashi, Takahiro Niitsu
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Patent number: 5423643Abstract: This invention provides a tool clamping/unclamping device which allows a tool to be replaced simply and securely by another one in short time, and which prevents a lock nut from being loosened, from yielding a difference in phase, and from dropping off with respect to a main shaft. The tool clamping/unclamping device comprises a tool urging means for holding a tool holding member in its clamped state, a nut positioning means for adjusting the lock nut in its phase in rotation angle position with respect to the main shaft, a nut drop-off preventing means for regulating the amount of rotation angle of the nut, a nut loosening detection means for detecting the position of the nut in the direction of the main shaft, and/or a locking mechanism for engaging a steel ball urged by a spring with a lock hole to thereby lock the lock nut in the direction of rotation.Type: GrantFiled: March 2, 1993Date of Patent: June 13, 1995Assignees: Kuroda Seiko Co., Ltd., Mori Seiki Co., Ltd.Inventors: Shigeru Suzuki, Motonori Kobara, Yasuhiro Hisatomi, Yoshinori Yamaguchi, Hiroshi Yonetani, Kiyoyuki Fukushima, Yoshimasa Sakamoto, Toru Yagami, Toshihide Kamei, Takahiro Kobi, Yoshiaki Sugimoto, Nobuyuki Kimura
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Patent number: 5344260Abstract: A tool holder is detachably secured to the lower end of a main spindle by means of a clamping nut having a female screw cooperating with a male screw of the main spindle such that keys are inserted into corresponding key recesses formed in an upper end face of the tool holder. Within the main spindle, there is arranged a driving shaft movably in an axial direction. Within the tool holder, a piston member is arranged movably in the axial direction. To a lower end of the driving shaft is provided a projection having a circular recess formed in an outer surface thereof. To an upper end portion of the piston member are secured a plurality of steel balls movably in a radial direction. A lower end of the piston member is formed as an inclined surface which is engaged with a cam surface of a tool fitting plate arranged movably in the radial direction.Type: GrantFiled: March 26, 1993Date of Patent: September 6, 1994Assignees: Kuroda Seiko Co., Ltd., Mori Seiki Co., Ltd.Inventors: Shigeru Suzuki, Motonori Kobara, Yasuhiro Hisatomi, Yoshinori Yamaguchi, Hiroshi Yonetani, Kiyoyuki Fukushima, Yoshimasa Sakamoto, Toru Yagami, Toshihide Kamei
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Patent number: 5321802Abstract: An information processing apparatus for performing a plurality of functions includes an auxiliary memory for receiving document data, a main memory for storing the document data received by the auxiliary memory, and a display for displaying the document data stored in the main memory. Icons for designating various edit operations for the document data displayed on the display. A CPU performs edit processing of the document data stored in the main memory in accordance with designation made by the icons.Type: GrantFiled: August 17, 1993Date of Patent: June 14, 1994Assignee: Canon Kabushiki KaishaInventors: Yoji Furuya, Michihei Murayama, Yoshinori Yamaguchi, Kenichiro Sugiura
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Patent number: 5313055Abstract: A two-dimensional image read/display device which is able to read and display information including two-dimensional images. A two-dimenasional image read/display device comprising a substrate, an optical sensor provided on the substrate and a light emitting unit provided to the optical sensor, wherein the optical sensor comprises a sensor area and a non-sensor area arranged alternately in a two dimensional manner, the light emitting unit comprises a light emitting area and a light transmissive area arranged alternately in a two dimensional manner, and the sensor area is disposed opposed to the light transmissive area at given distance therefrom.Type: GrantFiled: September 29, 1992Date of Patent: May 17, 1994Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshiyuki Shiratsuki, Yoshinori Yamaguchi
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Patent number: 5305397Abstract: There is disclosed an image communication apparatus, such as a facsimile apparatus, having the function of displaying the received image. The apparatus is provided with a storage unit and a control unit, and is capable of storing the received image. The control unit is capable of displaying the image information upside down by the unit of a page in order to facilitate the viewing of the image in case the image information is erroneously sent upside down.Type: GrantFiled: June 9, 1993Date of Patent: April 19, 1994Assignee: Canon Kabushiki KaishaInventors: Yoshinori Yamaguchi, Kenichi Sugiura, Masanao Yasuda, Naoshi Inoue, Hideyuki Kobayashi, Michihei Murayama
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Patent number: 5140739Abstract: A spindle unit comprising a solid shaft main spindle of a highly rigid material such as cemented carbide, with the main spindle being rotatably supported in a spindle head by bearings less apt to generate heat. A tool-clamping device including an adapter attached to a front end of the main spindle, and a tool holder carries a rotary tool. On of the adapter and the holder comprises a short columnar lug, with the other of the adapter and holder comprising a cylindrical hole shrinkage-fitted on the lug. The member having the hole is made of a material having a coefficient of thermal expansion lower than a coefficient of thermal expansion of the other member. The tool-clamping device further comprises heating and cooling devices for heating and cooling the member having the hole.Type: GrantFiled: January 8, 1991Date of Patent: August 25, 1992Assignee: Kabushiki Kaisha Mori Seiki SeisakushoInventors: Yoshinori Yamaguchi, Kentaro Shino, Kiyoshi Inada, Hiroshi Hanaoka