Patents by Inventor Takayuki Mizuno
Takayuki Mizuno 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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Publication number: 20160212896Abstract: A board work system provided with multiple mounters and arranged in a line, wherein each mounter includes supply device, the supply device being configured from at least one tape feeder that supplies electronic components, and tape feeder holding table on which at least one of the tape feeders is detachably loaded.Type: ApplicationFiled: September 12, 2013Publication date: July 21, 2016Applicant: FUJI MACHINE MFG.CO., LTD.Inventors: Jun IISAKA, Takayuki MIZUNO
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Publication number: 20160205818Abstract: A board work device provided with mounting head that performs work with respect to a circuit board, slider on which the mounting head is mounted, moving device that moves the slider to any position, and support pin gripping device for gripping support pins which is provided on the slider on the opposite side to the side on which the mounting head is mounted.Type: ApplicationFiled: September 4, 2013Publication date: July 14, 2016Applicant: FUJI MACHINE MFG. CO., LTD.Inventors: Takayuki MIZUNO, Hidetoshi KAWAI, Hidetoshi ITO, Masahiro KONDO
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Publication number: 20160114987Abstract: A revolving nozzle station and a revolving drive device that revolves the revolving nozzle station are housed inside a cassette case of a cassette-type nozzle exchanging unit. In an outer circumferential portion of the revolving nozzle station, multiple nozzles for exchange with a nozzle of component mounter are arranged radially along a revolution path, and the nozzles are held in a detachable manner. A nozzle exchange port is formed in a top end surface of cassette case, and nozzle exchange is performed between the revolving nozzle station and a mounting head of the component mounter through the nozzle exchange port. A shutter mechanism which opens and closes the nozzle exchange port is provided in the cassette case.Type: ApplicationFiled: May 21, 2013Publication date: April 28, 2016Applicant: FUJI MACHINE MGF. CO., LTD.Inventors: Takayuki MIZUNO, Hidetoshi ITO, Masahiro KONDO, Hidetoshi KAWAI, Keita TANAKA
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Patent number: 9323000Abstract: Provided is a waveguide-type polarization beam splitter in which deterioration of a polarization extinction ratio due to temperature change and wavelength change is suppressed. The waveguide-type polarization beam splitter includes: input optical waveguides; a first multimode interference optical coupler; a pair of optical waveguide arms; a second multimode interference optical coupler; and output optical waveguides. A quarter wavelength delay is provided in one of the pair of optical waveguide arms, a groove is formed to extend across both of the pair of optical waveguide arms, and two quarter wave plates are provided in the groove to extend respectively across the arms. Polarization axes of the respective quarter wave plates are orthogonal to each other.Type: GrantFiled: January 25, 2012Date of Patent: April 26, 2016Assignee: Nippon Telegraph and Telephone CorporationInventors: Takashi Saida, Yusuke Nasu, Takayuki Mizuno, Ryoichi Kasahara
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Patent number: 9235003Abstract: Provided is a waveguide-type polarization beam splitter in which deterioration of a polarization extinction ratio due to temperature change and wavelength change is suppressed. A groove is formed to extend across a pair of optical waveguide arms and two quarter wave plates are provided in the groove to extend respectively across the arms. Polarization axes of the quarter wave plates are orthogonal to each other. A first optical coupler which gives a phase difference of 0° or 180° between coupled or split light beams and a second optical coupler which gives a phase difference of 90° or ?90° between coupled or split light beams are used in combination.Type: GrantFiled: January 25, 2012Date of Patent: January 12, 2016Assignee: Nippon Telegraph and Telephone CorporationInventors: Takashi Saida, Yusuke Nasu, Takayuki Mizuno, Ryoichi Kasahara
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Patent number: 9116305Abstract: An arrayed waveguide grating provided with a first slab waveguide formed on a substrate; a second slab waveguide formed on the substrate; a first input/output waveguide connected to the first slab waveguide; a second input/output waveguide connected to the second slab waveguide; two or more channel waveguide groups connecting the first and second slab waveguides, each of the channel waveguide groups formed of an aggregate of a plurality of channel waveguides having path lengths sequentially becoming longer by a predetermined path length difference; and an optical filter arranged in at least one of the first and second slab waveguides.Type: GrantFiled: December 28, 2012Date of Patent: August 25, 2015Assignee: Nippon Telegraph and Telephone CorporationInventors: Hirotaka Nakamura, Shinya Tamaki, Shunji Kimura, Takayuki Mizuno, Hiroshi Takahashi, Mikitaka Itoh, Tsutomu Kitoh
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Patent number: 9019134Abstract: An apparatus and method are described for reading a file into a universal representation and translating from that universal representation into various file formats. For example, a method according to one embodiment comprises: reading compressed audio data from a first audio file, the first audio file comprising audio data compressed using a first compression algorithm and bookkeeping data having a first format, the bookkeeping data specifying a location of the compressed audio data within the first audio file; and generating a universal representation of the first audio file without decompressing and recompressing the audio data, the universal representation having bookkeeping data of a second format specifying the location of compressed audio data within the universal representation.Type: GrantFiled: April 29, 2013Date of Patent: April 28, 2015Assignee: Apple Inc.Inventors: Walker J. Eagleston, Kazuhisa Ohta, Takayuki Mizuno
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Publication number: 20140376861Abstract: An arrayed waveguide grating provided with a first slab waveguide formed on a substrate; a second slab waveguide formed on the substrate; a first input/output waveguide connected to the first slab waveguide; a second input/output waveguide connected to the second slab waveguide; two or more channel waveguide groups connecting the first and second slab waveguides, each of the channel waveguide groups formed of an aggregate of a plurality of channel waveguides having path lengths sequentially becoming longer by a predetermined path length difference; and an optical filter arranged in at least one of the first and second slab waveguides.Type: ApplicationFiled: December 28, 2012Publication date: December 25, 2014Inventors: Hirotaka Nakamura, Shinya Tamaki, Shunji Kimura, Takayuki Mizuno, Hiroshi Takahashi, Mikitaka Itoh, Tsutomu Kitoh
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Patent number: 8787710Abstract: A interferometer type polarization beam combiner and splitter, which can combine or split polarized light over a wide band, is provided. The interferometer type polarization beam combiner and splitter includes: an optical splitter; an optical coupler; an optical path length difference imparting unit, which includes a plurality of optical waveguides arranged between the optical splitting unit and the optical coupling unit; one or two input/output ports connected to the optical splitter; and two input/output ports connected to the optical coupler. A half-integer of a wavelength of ?c is set as a normalized phase difference, for the optical path length difference imparting unit, between two polarization states, and means for generating a difference in refractive index dispersion is provided between the optical waveguides of the optical path length difference imparting unit, so that the change rate of the transmittance with respect to wavelength is suppressed for the two polarization states.Type: GrantFiled: June 2, 2010Date of Patent: July 22, 2014Assignee: Nippon Telegraph and Telephone CorporationInventors: Takayuki Mizuno, Takashi Goh, Hiroshi Yamazaki, Shin Kamei, Tsutomu Kitoh
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Publication number: 20140071343Abstract: Adjustments to the closed caption component of video content may be implemented by identifying text elements within the closed caption text component of a video stream and to properly adjust the appearance of the text elements. Embodiments described herein provide a method for detecting and correcting text elements that have spacing conflicts as a result of a size or other appearance adjustment. If the correction of a conflict results in a new conflict, such conflicts may be detected and one or more text elements grouped to form a new text element that may then be adjusted.Type: ApplicationFiled: October 22, 2012Publication date: March 13, 2014Applicant: APPLE INC.Inventor: Takayuki Mizuno
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Publication number: 20130301976Abstract: Provided is a waveguide-type polarization beam splitter in which deterioration of a polarization extinction ratio due to temperature change and wavelength change is suppressed. A groove is formed to extend across a pair of optical waveguide arms and two quarter wave plates are provided in the groove to extend respectively across the arms. Polarization axes of the quarter wave plates are orthogonal to each other. A first optical coupler which gives a phase difference of 0° or 180° between coupled or split light beams and a second optical coupler which gives a phase difference of 90° or ?90° between coupled or split light beams are used in combination.Type: ApplicationFiled: January 25, 2012Publication date: November 14, 2013Applicant: Nippon Telegraph and Telephone CorporationInventors: Takashi Saida, Yusuke Nasu, Takayuki Mizuno, Ryoichi Kasahara
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Publication number: 20130301977Abstract: Provided is a waveguide-type polarization beam splitter in which deterioration of a polarization extinction ratio due to temperature change and wavelength change is suppressed. The waveguide-type polarization beam splitter includes: input optical waveguides; a first multimode interference optical coupler; a pair of optical waveguide arms; a second multimode interference optical coupler; and output optical waveguides. A quarter wavelength delay is provided in one of the pair of optical waveguide arms, a groove is formed to extend across both of the pair of optical waveguide arms, and two quarter wave plates are provided in the groove to extend respectively across the arms. Polarization axes of the respective quarter wave plates are orthogonal to each other.Type: ApplicationFiled: January 25, 2012Publication date: November 14, 2013Inventors: Takashi Saida, Yusuke Nasu, Takayuki Mizuno, Ryoichi Kasahara
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Patent number: 8436753Abstract: An apparatus and method are described for reading a file into a universal representation and translating from that universal representation into various file formats. For example, a method according to one embodiment comprises: reading compressed audio data from a first audio file, the first audio file comprising audio data compressed using a first compression algorithm and bookkeeping data having a first format, the bookkeeping data specifying a location of the compressed audio data within the first audio file; and generating a universal representation of the first audio file without decompressing and recompressing the audio data, the universal representation having bookkeeping data of a second format specifying the location of compressed audio data within the universal representation.Type: GrantFiled: January 11, 2011Date of Patent: May 7, 2013Assignee: Apple Inc.Inventors: Walker J. Eagleston, Kazuhisa Ohta, Takayuki Mizuno
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Patent number: 8346030Abstract: A Mach-Zehnder interferometer circuit (700) is provided with two couplers (722, 724) and two arm waveguides (706, 708) connecting the couplers with each other, each fabricated on a substrate, in which a polarization rotation device (732) is disposed in a groove dividing each of the two arm waveguides into two, the polarization rotation device (732) for converting vertically polarized light into horizontally polarized light, and birefringence is adjusted by performing laser irradiation or the like partially into at least one of the two arm waveguides such that a difference between birefringence values divided by an optical wavelength to be used is within a range of 2 m-0.2 to 2 m+0.2 (m is an integer including zero), the birefringence values being those integrated linearly along the respective two arm waveguides in an optical signal travelling direction.Type: GrantFiled: August 24, 2007Date of Patent: January 1, 2013Assignee: Nippon Telegraph and Telephone CorporationInventors: Yasuaki Hashizume, Manabu Oguma, Takashi Saida, Masaki Kotoku, Takayuki Mizuno
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Publication number: 20120063716Abstract: A interferometer type polarization beam combiner and splitter, which can combine or split polarized light over a wide band, is provided. The interferometer type polarization beam combiner and splitter includes: an optical splitter; an optical coupler; an optical path length difference imparting unit, which includes a plurality of optical waveguides arranged between the optical splitting unit and the optical coupling unit; one or two input/output ports connected to the optical splitter; and two input/output ports connected to the optical coupler. A half-integer of a wavelength of ?c is set as a normalized phase difference, for the optical path length difference imparting unit, between two polarization states, and means for generating a difference in refractive index dispersion is provided between the optical waveguides of the optical path length difference imparting unit, so that the change rate of the transmittance with respect to wavelength is suppressed for the two polarization states.Type: ApplicationFiled: June 2, 2010Publication date: March 15, 2012Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Takayuki Mizuno, Takashi Goh, Hiroshi Yamazaki, Shin Kamei, Tsutomu Kitoh
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Patent number: 7995876Abstract: Two AWG circuits are integrated while preventing degradation in quality of a multiplexing/demultiplexing function. An arrayed waveguide grating circuit includes: a first slab waveguide (52) connected to a first input waveguide (51a) and second output waveguides (55b); a second slab waveguide (54) connected to first output waveguides (55a) and a second input waveguide (51b); and an array waveguide (53) connecting the first slab waveguide (52) and the second slab waveguide (54), wherein the input waveguides (51a, 51b) are connected to the slab waveguides (52, 54) at an interval of 1.5× from the outermost second output waveguide out of the second output waveguides (55a, 55b) connected at an interval x depending on a wavelength.Type: GrantFiled: December 21, 2006Date of Patent: August 9, 2011Assignees: Nippon Telegraph and Telephone Corporation, NTT Electronics CorporationInventors: Tomoyuki Yamada, Mitsuru Nagano, Mikitaka Ito, Toshio Watanabe, Takayuki Mizuno, Takashi Goh, Akimasa Kaneko
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Publication number: 20110103736Abstract: A Mach-Zehnder interferometer circuit (700) is provided with two couplers (722, 724) and two arm waveguides (706, 708) connecting the couplers with each other, each fabricated on a substrate, in which a polarization rotation device (732) is disposed in a groove dividing each of the two arm waveguides into two, the polarization rotation device (732) for converting vertically polarized light into horizontally polarized light, and birefringence is adjusted by performing laser irradiation or the like partially into at least one of the two arm waveguides such that a difference between birefringence values divided by an optical wavelength to be used is within a range of 2m?0.2 to 2m+0.2 (m is an integer including zero), the birefringence values being those integrated linearly along the respective two arm waveguides in an optical signal travelling direction.Type: ApplicationFiled: August 24, 2007Publication date: May 5, 2011Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Yasuaki Hashizume, Manabu Oguma, Takashi Saida, Masaki Kotoku, Takayuki Mizuno
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Publication number: 20100332653Abstract: According to one embodiment, an image forming apparatus includes a unit configured to transmit input authentication information of a user or a department to a server apparatus, a unit configured to acquire setting information input, concerning a job allocated to the authenticated user or department, a unit configured to transmit the setting information to the server apparatus and request the sever apparatus to permit printing, a unit configured to receive a provisional limited number of printed sheets from the server apparatus and execute printing, a unit configured to request transmission of a new provisional limited number of printed sheets, a unit configured to receive the new provisional limited number of printed sheets from the server apparatus and execute the printing, and a unit configured to transmit the number of printed sheets to the server apparatus in a predetermined case.Type: ApplicationFiled: June 25, 2010Publication date: December 30, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHAInventor: Takayuki Mizuno
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Publication number: 20100115419Abstract: A gratitude providing system is configured to present gratitude expressed as visual value information (chao) to the other user (gratitude presentee) who has given a moved or kind act. The gratitude providing system specifies attribute items (job) owned by the user of the gratitude presentee; transmits predetermined chao determined by the user from a communication terminal device; stores the chao, which a user eventually has owned, at a chao passbook in connection with the job owned by the user; sets each user job level in accordance with each user job recorded and held at the chao passbook and each user chao quantity or a presenting frequency, and publicly discloses this set job level of the user through a communication network.Type: ApplicationFiled: March 8, 2007Publication date: May 6, 2010Applicant: CHAO Inc.Inventor: Takayuki Mizuno
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Publication number: 20090263084Abstract: Two AWG circuits are integrated while preventing degradation in quality of a multiplexing/demultiplexing function. An arrayed waveguide grating circuit includes: a first slab waveguide (52) connected to a first input waveguide (51a) and second output waveguides (55b); a second slab waveguide (54) connected to first output waveguides (55a) and a second input waveguide (51b); and an array waveguide (53) connecting the first slab waveguide (52) and the second slab waveguide (54), wherein the input waveguides (51a, 51b) are connected to the slab waveguides (52, 54) at an interval of 1.5× from the outermost second output waveguide out of the second output waveguides (55a, 55b) connected at an interval x depending on a wavelength.Type: ApplicationFiled: December 21, 2006Publication date: October 22, 2009Applicants: Nppon Telegraph and Telephone Corporation, NTT Electronics CorportionInventors: Tomoyuki Yamada, Mitsuru Nagano, Mikitaka Ito, Toshio Watanabe, Takayuki Mizuno, Takashi Goh, Akimasa Kaneko