Patents by Inventor Hiroshi Goto
Hiroshi Goto 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: 5536926Abstract: An optical scanner and an optical scanning device, an optical sensor unit, a coded data reader, and a POS system employing an optical scanner. The optical comprises an elastically deformable element, a vibrational input segment disposed at a first end of the elastically deformable element, a driven segment disposed at a second end of the elastically deformable element, a vibration source for inducing vibration in the vibrational input segment, whereby the vibration induced in the vibrational input segment produces elastic deformation of the elastically deformable element and consequent movement of the driven segment, and a stop for limiting a range of the movement of the driven segment.Type: GrantFiled: December 22, 1994Date of Patent: July 16, 1996Assignee: Omron CorporationInventors: Masaaki Ikeda, Hiroshi Goto, Kenji Takemura, Hidenobu Umeda, Masahiro Yoneda, Atsushi Irie, Kiyotoshi Ookura, Norimasa Yamanaka, Hiromi Totani
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Patent number: 5532201Abstract: A thermosensitive recording layer is provided on a carrier body and is mainly composed of electron donative coloration compound, and electron acceptor compound, together with binder resin. The thermosensitive recording medium includes 500 through 5,000 ppm of organic solvent, and the organic solvent has a dielectric constant of 2.0 through 25.0 at 20.degree. C., and has a steam pressure of 10 through 200 mmHg at 20.degree. C. A protective layer is provided on the thermosensitive recording layer. The organic solvent is included in the thermosensitive layer and the protective layer.Type: GrantFiled: December 14, 1994Date of Patent: July 2, 1996Assignee: Ricoh Company, Ltd.Inventor: Hiroshi Goto
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Patent number: 5521138Abstract: A reversible thermosensitive coloring composition is composed of an electron-donor coloring compound; an electron-acceptor compound which is capable of producing a colored material with a regularly aggregated structure in the electron-doner coloring compound at a color development initiation temperature to obtain a color development state, and is capable of crystallizing out of the colored material at a decolorization initiation temperature which is lower than the color development initiation temperature; and an organic compound serving as a decolorization-accelerating agent capable of inducing the destruction of the regularly aggregated structure of the colored material to accelerate the decolorization of the composition. A reversible thermosensitive coloring recording medium is composed of a support and a recording layer formed thereon, which contains the above-mentioned reversible thermosensitive coloring composition.Type: GrantFiled: June 23, 1992Date of Patent: May 28, 1996Assignee: Ricoh Company, Ltd.Inventors: Masaru Shimada, Hiroshi Goto, Eiichi Kawamura, Shoji Maruyama, Keishi Kubo, Kyoji Tsutsui
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Patent number: 5517228Abstract: An apparatus for displaying a recording medium sheet and for printing an image thereon includes a plurality of sheets each of which is made of an erasable recording medium, a recording unit for recording information on one of the plurality of sheets, a displaying unit for displaying the sheet on which information is recorded by the recording unit, the sheet being set at a display position when it is displayed, a sheet supplying unit for supplying one of the sheets to the recording unit, and for receiving the displayed sheet from the displaying unit, a sheet passage in which one of the sheets is transported from the displaying unit to the sheet supplying unit via the recording unit, and a sheet passage in which the sheet is transported from the sheet supplying unit to the displaying unit via the recording unit.Type: GrantFiled: April 5, 1993Date of Patent: May 14, 1996Assignee: Ricoh Co., Ltd.Inventors: Makoto Obu, Masaru Shimada, Itsuo Ikeda, Noriyoshi Tarumi, Hiroshi Goto
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Patent number: 5495096Abstract: A multi-focus optical sensing device for use in bar code scanners, photoelectric sensors and the like is disclosed. To extend the range of detection along the optical axis, without increasing the detection time, the focal point of the light beam is caused to move along the optical axis. A control and modulation circuit varies a current I.sub.f which drives an optical semiconductor serving as a light source. This changes the focal distance of a refraction lattice and so causes the focal position of the light beam emitted by light source to scan along the optical axis. This scan is repeated each time a polygonal mirror scans the light beam over the narrowest width 1/n (where n is an integer) of the bar code lines. A processing unit samples and processes the signal from a photodetector unit while the light beam is being scanned along the optical axis.Type: GrantFiled: September 21, 1992Date of Patent: February 27, 1996Assignee: Omron CorporationInventors: Shiro Ogata, Hiroshi Goto, Yoshinori Ito, Koichi Imanaka
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Patent number: 5493324Abstract: An image forming apparatus comprising: a laser beam irradiating device for irradiating a laser beam onto a record support member; a storage device for storing image data composed of a plurality of dots; a detection device which reads out the image data from the storage device so as to detect whether or not dots to be subjected to light emission by the laser beam are arranged continuously; and a control device for controlling an irradiation period of the laser beam irradiating device to a smaller value when the detection device has detected that the dots to be subjected to light emission are arranged continuously.Type: GrantFiled: July 1, 1993Date of Patent: February 20, 1996Assignee: Minolta Camera Kabushiki KaishaInventors: Hiroshi Goto, Tateki Oka
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Patent number: 5444565Abstract: An optical scanner and beam printer using the optical scanner are disclosed in which the optical scanner includes a scanning element supporting a mirror surface, a support element for freely supporting at one end the scanning element and at another end a vibrating element, and a drive source for inducing vibrations in the vibrating element. The support element may be a shaft having two modes of elastic deformation upon vibration or a torsional spring which undergoes deformation upon vibration. Vibrations received by the vibrating element are applied to the scanning element by the support element to cause optical scanning movement by the scanning element.Type: GrantFiled: June 11, 1993Date of Patent: August 22, 1995Assignee: Omron CorporationInventor: Hiroshi Goto
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Patent number: 5444724Abstract: In an external-cavity tunable wavelength light source using a semiconductor laser (LD), when an interferometer serving as an optical filter is constituted by part of an external cavity, an external-cavity longitudinal mode can be selected with good reproducibility, and a side mode suppression ratio can be increased. A light beam emitted from an AR-coated facet of an LD is converted into a collimated beam by a lens, and the collimated beam is incident on a Mach-Zehnder (MZ) interferometer serving as an optical filter. An interference light beam emerges from the MZ interferometer toward a diffraction grating. Only a light component having a specific wavelength and selected by spectrally dispersing the interference light beam reversely travels in the same optical path as that of the interference light beam and is returned to the LD.Type: GrantFiled: August 25, 1994Date of Patent: August 22, 1995Assignee: Anritsu CorporationInventor: Hiroshi Goto
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Patent number: 5432534Abstract: A reversible thermosensitive coloring composition is composed of (i) an electron-donor coloring compound and (ii) an electron-acceptor compound selected from the group consisting of an organic phosphoric acid compound, an aliphatic carboxylic acid, and a phenolic compound, each having a straight chain or branched chain alkyl group or alkyenyl group having 12 or more carbon atoms, the electron-donor coloring compound and the electron-acceptor compound being capable of reacting to induce color formation in the reversible thermosensitive coloring composition at the eutectic temperature thereof. The electron-donor coloring compound and the electron-acceptor compound, when fused and colored in a mixed state, with application of heat thereto, followed by rapidly cooling the fused mixture, exhibit an exothermic peak in a temperature elevation process in a differential scanning calorific analysis or in a differential thermal analysis.Type: GrantFiled: November 9, 1994Date of Patent: July 11, 1995Assignee: Ricoh Company, Ltd.Inventors: Shoji Maruyama, Hiroshi Goto, Eiichi Kawamura, Masaru Shimada, Keishi Kubo, Kyoji Tsutsui, Hideaki Ema, Takehito Yamaguchi, Hiroki Kuboyama, Ichiro Sawamura, Keishi Taniguchi
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Patent number: 5400068Abstract: A video telephone to be connected to the ISDN is a unitary structure comprising a communication controller for controlling communication of digital data, such as voice signal, image signal and facsimile/camera control signal, a dial or key panel unit, a telephone controller for controlling the functions of a handset and the key panel unit, a camera for inputting an image, a display for outputting an image, and an image CODEC for coding an input image signal and decoding a received image signal. The camera is tiltable and detachable.Type: GrantFiled: July 24, 1992Date of Patent: March 21, 1995Assignee: Hitachi, Ltd.Inventors: Kiyoshi Ishida, Hiroshi Goto
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Patent number: 5395433Abstract: A reversible thermosensitive coloring composition is composed of (i) an electron-donor coloring compound and (ii) an electron-acceptor compound selected from the group consisting of an organic phosphoric acid compound, an aliphatic carboxylic acid, and a phenolic compound, each having a straight chain or branched chain alkyl group or alkyenyl group having 12 or more carbon atoms, the electron-donor coloring compound and the electron-acceptor compound being capable of reacting to induce color formation in the reversible thermosensitive coloring composition at the eutectic temperature thereof. The electron-donor coloring compound and the electron-acceptor compound, when fused and colored in a mixed state, with application of heat thereto, followed by rapidly cooling the fused mixture, exhibit an exothermic peak in a temperature elevation process in a differential scanning calorific analysis or in a differential thermal analysis.Type: GrantFiled: November 30, 1993Date of Patent: March 7, 1995Assignee: Ricoh Company, Ltd.Inventors: Shoji Maruyama, Hiroshi Goto, Eiichi Kawamura, Masaru Shimada, Keishi Kubo, Kyoji Tsutsui, Hideaki Ema, Takehito Yamaguchi, Hiroki Kuboyama, Ichiro Sawamura, Keishi Taniguchi
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Patent number: 5380693Abstract: A transparent thermosensitive recording medium includes a transparent support, a thermosensitive recording layer which contains an electron-donating coloring compound, an electron-accepting compound and a binder resin, formed on the transparent support, and a protective layer formed on the thermosensitive recording layer, with the transparent support, the thermosensitive recording layer and the protective layer having substantially the same refractive index.Type: GrantFiled: April 1, 1994Date of Patent: January 10, 1995Assignee: Ricoh Company, Ltd.Inventor: Hiroshi Goto
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Patent number: 5362929Abstract: A weight measuring device includes two piezoelectric elements. The first piezoelectric element induces vibration in an object to be measured, and the second one detects the reaction force of the object generated by the vibration. This force is detected by a voltage monitor circuit as an output voltage from the second piezoelectric element. From the voltage which has been detected, the weight of object is determined. The device further includes an absorbing element to absorb unnecessary piezoelectric strain in reaction force generated when the object vibrates. The invention provides a compact weight sensor which can be produced at low cost, and which can measure weight with high accuracy.Type: GrantFiled: August 27, 1992Date of Patent: November 8, 1994Assignee: Omron CorporationInventor: Hiroshi Goto
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Patent number: 5351277Abstract: A method of constructing the top slab of a nuclear reactor container in which a flange for mounting the top head of the container is prepared separately from the sleeve of the container. When the outside diameter of the flange is greater than the inside diameter of a doughnut-shaped steel; reinforcement structure assembled on the container, the steel reinforcement structure is situated in place and then the flange is welded to the sleeve, thus shortening the construction period. Disclosed also is a nuclear reactor container constructed by this method.Type: GrantFiled: April 15, 1991Date of Patent: September 27, 1994Assignee: Hitachi, Ltd.Inventors: Hiroshi Goto, Tadao Suzuki
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Patent number: 5296439Abstract: A reversible thermosensitive coloring composition is composed of (i) an electron-donor coloring compound and (ii) an electron-acceptor compound selected from the group consisting of an organic phosphoric acid compound, an aliphatic carboxylic acid, and a phenolic compound, each having a straight chain or branched chain alkyl group or alkenyl group having 12 or more carbon atoms, the electron-donor coloring compound and the electron-acceptor compound being capable of reacting to induce color formation in the reversible thermosensitive coloring composition at the eutectic temperature thereof. The electron-donor coloring compound and the electron-acceptor compound, when fused and colored in a mixed state, with application of heat thereto, followed by rapidly cooling the fused mixture, exhibit an exothermic peak in a temperature elevation process in a differential scanning calorific anlaysis or in a differential thermal analysis.Type: GrantFiled: December 24, 1991Date of Patent: March 22, 1994Assignee: Ricoh Company, Ltd.Inventors: Shoji Maruyama, Hiroshi Goto, Eiichi Kawamura, Masaru Shimada, Keishi Kubo, Kyoji Tsutsui, Hideaki Ema, Takehito Yamaguchi, Hiroki Kuboyama, Ichiro Sawamura, Keishi Taniguchi
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Patent number: 5296724Abstract: A light emitting semiconductor device including a light emitting element, an optical element for condensing, collimating or diverging a ray emitted from the light emitting element which is packaged as a single unit with the light emitting element, and a cap molded by a fiber reinforced resin for supporting the light emitting element, the cap having an opening for a light emitting window which is provided with the optical element.Type: GrantFiled: April 29, 1991Date of Patent: March 22, 1994Assignee: Omron CorporationInventors: Shiro Ogata, Koichi Imanaka, Hiroshi Goto, Yoshinori Ito, Kourou Kitajima
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Patent number: 5262828Abstract: An image forming apparatus accommodates a developing bias power unit for applying a bias voltage to a developing sleeve confronting a photosensitive member. The developing bias power unit includes a DC power source, an electricity storage element interposed between the DC power source and the developing sleeve, and a controller for on-off controlling the DC power source. When an output of the DC power source is activated, the electricity storage element is electrically charged by an output voltage of the DC power source, and a first voltage is applied to the developing sleeve. In contrast, when the output of the DC power source is deactivated, a second voltage of reverse polarity is applied to the developing sleeve by electric charge held in the electricity storage element.Type: GrantFiled: December 9, 1992Date of Patent: November 16, 1993Assignee: Minolta Camera Kabushiki KaishaInventors: Tateki Oka, Hiroshi Goto, Yasuo Tanaka, Tamotsu Sakuraba, Kazuyoshi Hara, Hitoshi Saito, Koji Uno
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Patent number: 5247342Abstract: A light wavelength measuring apparatus is designed to obtain a wavelength (.lambda.) of target light, by using the number (N) of interference fringes having predetermined repetitive waveforms generated when an optical path length is changed by a change amount (D.sub.S) by continuously moving a movable portion (7) of an interference spectroscopic unit (1) at a constant speed throughout a predetermined distance (D.sub.S), according to .lambda.=D.sub.S /N. A wave counter (13) forms waveform count information (Na) by counting the number of specific points, corresponding to each other in respective periods of the interference fringes, throughout an interval between predetermined measurement start and end points. A reference pulse generator (21) generates a reference pulse having a frequency higher than that of the repetitive waveforms of the interference fringes.Type: GrantFiled: November 29, 1991Date of Patent: September 21, 1993Assignees: Anritsu Corporation, Nippon Telegraph & Telephone CorporationInventors: Youichi Tamura, Hiroshi Goto, Takeshi Tsukamoto, Yasutaka Ichihashi, Takamasa Imai
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Patent number: 5245463Abstract: An optical scanner and beam printer using the optical scanner are disclosed in which the optical scanner includes a scanning element supporting a mirror surface, a support element for freely supporting at one end the scanning element and at another end a vibrating element, and a drive source for inducing vibrations in the vibrating element. The support element may be a shaft having two modes of elastic deformation upon vibration or a torsional spring which undergoes deformation upon vibration. Vibrations received by the vibrating element are applied to the scanning element by the support element to cause optical scanning movement by the scanning element.Type: GrantFiled: August 7, 1991Date of Patent: September 14, 1993Assignee: Omron CorporationInventor: Hiroshi Goto
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Patent number: RE34400Abstract: A method for fabricating an isolation region in a semiconductor substrate that produces neither a "bird's beak" nor a "bird's head". A smooth substrate surface is provided, which is preferable for multi-layered wiring. The packing density of devices in a bipolar IC circuit can be increased. A sharp-edged isolation groove having a U-shaped cross-section is made by reactive ion etching. The inner surface of the isolation groove is coated by an insulating film. Then the groove is buried with polycrystalline semiconductor material. The polycrystalline material which is deposited on the surface of the substrate is etched off. At the same time the polycrystalline material in the groove is also etched to a specific depth from the surface. An insulating film is then deposited so as to again fill the groove. Then the substrate surface is polished or etched to provide a flat surface.Type: GrantFiled: September 14, 1990Date of Patent: October 5, 1993Assignee: Fujitsu LimitedInventors: Hiroshi Goto, Akira Tabata