Patents by Inventor Yuuichi Takahashi
Yuuichi Takahashi 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: 9767760Abstract: A driving device for a display device wherein the display device and a source driver are connected by a plurality of external lines. A bias voltage generating part generates a bias voltage for controlling internal operating current of the plurality of amplifiers in the source driver to supply to each amplifier via a bias voltage supply line. The bias voltage supply line is laid out such that for the amplifier connected to the external line of a longer length, the length of the bias voltage supply line from the bias voltage generating part to the amplifier is shorter so as to raise a bias voltage supplied to the amplifier.Type: GrantFiled: March 4, 2015Date of Patent: September 19, 2017Assignee: LAPIS SEMICONDUCTOR CO., LTD.Inventor: Yuuichi Takahashi
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Patent number: 9132657Abstract: A printing apparatus includes a print head that ejects ink for printing, an ink tank from which ink is fed to the print head, a first channel provided between the print head and the ink tank to feed ink in the ink tank to the print head, a second channel through which the ink in the first channel is transferred, and a pump connected to the second channel to transfer the ink in the first channel. The pump allows air or the ink in the first channel to be discharged via the second channel.Type: GrantFiled: April 18, 2013Date of Patent: September 15, 2015Assignee: Canon Finetech, Inc.Inventors: Yuuichi Takahashi, Kayo Mukai, Hiroki Niikura
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Publication number: 20150255035Abstract: A driving device for a display device wherein the display device and a source driver are connected by a plurality of external lines. A bias voltage generating part generates a bias voltage for controlling internal operating current of the plurality of amplifiers in the source driver to supply to each amplifier via a bias voltage supply line. The bias voltage supply line is laid out such that for the amplifier connected to the external line of a longer length, the length of the bias voltage supply line from the bias voltage generating part to the amplifier is shorter so as to raise a bias voltage supplied to the amplifier.Type: ApplicationFiled: March 4, 2015Publication date: September 10, 2015Applicant: LAPIS Semiconductor Co., Ltd.Inventor: Yuuichi TAKAHASHI
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Publication number: 20130286116Abstract: A printing apparatus includes a print head that ejects ink for printing, an ink tank from which ink is fed to the print head, a first channel provided between the print head and the ink tank to feed ink in the ink tank to the print head, a second channel through which the ink in the first channel is transferred, and a pump connected to the second channel to transfer the ink in the first channel. The pump allows air or the ink in the first channel to be discharged via the second channel.Type: ApplicationFiled: April 18, 2013Publication date: October 31, 2013Applicant: Canon Finetech Inc.Inventors: Yuuichi TAKAHASHI, Kayo MUKAI, Hiroki NIIKURA
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Patent number: 8342661Abstract: An inkjet printing apparatus which can perform cost-down and an improvement on a print quality by simplification of an apparatus construction is realized. For realizing such an apparatus, a gas-liquid separation is achieved by the construction where air bubbles generated in an ejection portion or a reservoir can rise to a liquid surface, and a negative pressure control and at the same time, discharge of the air bubbles are performed by a fan.Type: GrantFiled: December 15, 2008Date of Patent: January 1, 2013Assignee: Canon Finetech Inc.Inventors: Yuuichi Takahashi, Daisuke Nakamura, Takefumi Tamura, Yuuko Saijo
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Publication number: 20090160915Abstract: An inkjet printing apparatus which can perform cost-down and an improvement on a print quality by simplification of an apparatus construction is realized. For realizing such an apparatus, a gas-liquid separation is achieved by the construction where air bubbles generated in an ejection portion or a reservoir can rise to a liquid surface, and a negative pressure control and at the same time, discharge of the air bubbles are performed by a fan.Type: ApplicationFiled: December 15, 2008Publication date: June 25, 2009Applicant: CANON FINETECH INC.Inventors: Yuuichi Takahashi, Daisuke Nakamura, Takefumi Tamura, Yuuko Saijo
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Publication number: 20090136276Abstract: An image-forming apparatus is provided which is capable of forming an image on an intended position on a recording medium regardless of the paper sheet width (whether the sheet is wide or narrow). The image-forming apparatus 10 has a first recording head 31 which moves only within a first one side (right side in FIG. 1) of a first delivery belt 21 in the paper sheet width direction (arrow-B direction and arrow-C direction) perpendicular to the arrow-A direction. In the downstream side of the first delivery belt 21 in the arrow-A direction and slightly rightward in the paper sheet width direction, a second delivery belt 22 of an endless type extending in the arrow-A direction is provided for delivering the recording medium in the arrow-A direction. A second recording head 32 is provided which moves in the paper sheet width direction only within a second one side of the second delivery belt 22 opposite to the first one side.Type: ApplicationFiled: November 13, 2008Publication date: May 28, 2009Applicant: CANON FINETECH INC.Inventors: Takefumi TAMURA, Yuuichi TAKAHASHI, Daisuke NAKAMURA, Daisuke SASAKI
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Patent number: 7525896Abstract: An optical head comprises first and second light sources which are arranged next to each other and emit lights of different wavelengths and an optical device which is arranged between the first and second light sources and a conversing lens for reducing the spherical aberration caused by combination of the conversing lens and at least one of first and second optical recording media which correspond to at least one of the lights of first and second wavelengths. The optical axis of the optical device is shifted with respect to the optical axis of the conversing lens in order to reduce the coma aberration that is caused since at least one of optical axes of the lights of first and second wavelengths does not coincide with the optical axis of the conversing lens.Type: GrantFiled: April 26, 2004Date of Patent: April 28, 2009Assignee: Panasonic CorporationInventors: Yuuichi Takahashi, Kazuo Momoo
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Patent number: 7522484Abstract: An optical information processor reads information from a storage medium or writes information on a storage medium by irradiating it with light radiated from a light source. The processor includes: the light source for radiating the light; a condensing element for converging the light, radiated from the light source, toward the storage medium; and a detector for detecting a portion of the light radiated from the light source. Supposing that in a far-field pattern of the light radiated from the light source, an aperture area A is defined by a portion of the light entering the condensing element and a photosensitive area B is defined by another part of the light entering the detector and that the light has the narrower angle of radiation in an x direction and the wider angle of radiation in a y direction, respectively, the center of the photosensitive area B in the x direction is offset with respect to that of the far-field pattern in the x direction.Type: GrantFiled: November 15, 2005Date of Patent: April 21, 2009Assignee: Panaosnic CorporationInventor: Yuuichi Takahashi
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Publication number: 20080282277Abstract: The present invention relates to an apparatus capable of optically recording information onto an information medium (1) by converging a light beam which is emitted from a first light source (6) and passes through a first beam-splitter (8) and a collimating lens (10) onto the information medium (1) using a convergence lens (12) and converging a light beam which is emitted from a second light source (7) and passes through a second beam-splitter (9) and a collimating lens (10) onto the information medium using a convergence lens (12). When visual information such as a title and an image relating to information recorded in the information layer (2) of the information medium (1) is recorded onto the visual information layer (5) of the information medium (1), the first light source (6) and the second light source (7) emit light simultaneously, thereby improving emission intensity.Type: ApplicationFiled: April 14, 2005Publication date: November 13, 2008Inventor: Yuuichi Takahashi
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Publication number: 20080277562Abstract: Light emitted from alight source (5) is reflected by the reflection film of a polarized beam-splitter (6), passes through collimating lens (7) and a mirror (8) to reach a convergence lens (9). The convergence lens (9) forms a light spot on an information medium (1) having a visual information layer (4). Reflected light which is reflected by the visual information layer (4) passes through the convergence lens (9), the mirror (8), and the collimating lens (7), transmits through the reflection film of the polarized beam-splitter (6), passes through a half mirror (14) to reach a second light detector (13). The second light detector (13) detects an FE signal for the visual information layer (4) and feeds back the detected signal to an LPC circuit, thereby restricting power fluctuation due to surface deflection.Type: ApplicationFiled: April 14, 2005Publication date: November 13, 2008Inventors: Hiroshi Kayama, Kazuo Momoo, Yuuichi Takahashi
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Patent number: 7376120Abstract: In the case of radio base stations of different kinds, a synchronization in a radio section cannot be established so that the efficiently effective use of electric waves cannot be retained. According to the invention, therefore, there is provided a TDMA type mobile communication system 100 comprising: a plurality of radio base stations of different system kinds (i.e., a general type radio base station 1, an IP connection type radio base station 10 and a main digital cordless phone 2); mobile phones 5A and 5B wirelessly connected with the plural radio base stations; and a private branch exchange 4 wired with the radio base stations. The radio base station receives, when a synchronized operation mode is decided, a frame signal containing a control CH signal, from a reference radio base station (i.e.Type: GrantFiled: August 27, 2004Date of Patent: May 20, 2008Assignees: Hitachi Communication Technologies, Ltd., Hitachi Hybrid Network Co., Ltd.Inventors: Katsushi Miyawaki, Yuuichi Takahashi
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Patent number: 7230888Abstract: A light emitting device according to the present invention includes: a first light source for emitting light having a first wavelength; and a second light source for emitting light having a second wavelength which is different from the first wavelength, wherein the first light source and the second light source are arranged in the same housing, and a relationship of ?h1>?h2 is satisfied, where ?h1 denotes an angle (full-width-half-maximum) of radiation of the light emitted from the first light source in the horizontal direction, and ?h2 denotes an angle (full-width-half-maximum) of radiation of the light emitted from the second light source in the horizontal direction.Type: GrantFiled: April 22, 2005Date of Patent: June 12, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yuuichi Takahashi, Kazuo Momoo
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Publication number: 20060215504Abstract: An optical head comprises first and second light sources which are arranged next to each other and emit lights of different wavelengths and an optical device which is arranged between the first and second light sources and a conversing lens for reducing the spherical aberration caused by combination of the conversing lens and at least one of first and second optical recording media which correspond to at least one of the lights of first and second wavelengths. The optical axis of the optical device is shifted with respect to the optical axis of the conversing lens in order to reduce the coma aberration that is caused since at least one of optical axes of the lights of first and second wavelengths does not coincide with the optical axis of the conversing lens.Type: ApplicationFiled: April 26, 2004Publication date: September 28, 2006Inventor: Yuuichi Takahashi
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Publication number: 20060104185Abstract: An optical information processor reads information from a storage medium or writes information on a storage medium by irradiating it with light radiated from a light source. The processor includes: the light source for radiating the light; a condensing element for converging the light, radiated from the light source, toward the storage medium; and a detector for detecting a portion of the light radiated from the light source. Supposing that in a far-field pattern of the light radiated from the light source, an aperture area A is defined by a portion of the light entering the condensing element and a photosensitive area B is defined by another part of the light entering the detector and that the light has the narrower angle of radiation in an x direction and the wider angle of radiation in a y direction, respectively, the center of the photosensitive area B in the x direction is offset with respect to that of the far-field pattern in the x direction.Type: ApplicationFiled: November 15, 2005Publication date: May 18, 2006Inventor: Yuuichi Takahashi
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Publication number: 20050243432Abstract: A light emitting device according to the present invention includes: a first light source for emitting light having a first wavelength; and a second light source for emitting light having a second wavelength which is different from the first wavelength, wherein the first light source and the second light source are arranged in the same housing, and a relationship of ?h1>?h2 is satisfied, where ?h1 denotes an angle (full-width-half-maximum) of radiation of the light emitted from the first light source in the horizontal direction, and ?h2 denotes an angle (full-width-half-maximum) of radiation of the light emitted from the second light source in the horizontal direction.Type: ApplicationFiled: April 22, 2005Publication date: November 3, 2005Inventors: Yuuichi Takahashi, Kazuo Momoo
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Publication number: 20050096033Abstract: In the case of radio base stations of different kinds, a synchronization in a radio section cannot be established so that the efficiently effective use of electric waves cannot be retained. According to the invention, therefore, there is provided a TDMA type mobile communication system 100 comprising: a plurality of radio base stations of different system kinds (i.e., a general type radio base station 1, an IP connection type radio base station 10 and a main digital cordless phone 2); mobile phones 5A and 5B wirelessly connected with the plural radio base stations; and a private branch exchange 4 wired with the radio base stations. The radio base station receives, when a synchronized operation mode is decided, a frame signal containing a control CH signal, from a reference radio base station (i.e.Type: ApplicationFiled: August 27, 2004Publication date: May 5, 2005Inventors: Katsushi Miyawaki, Yuuichi Takahashi