Patents by Inventor Akira Miura
Akira Miura 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: 20120004541Abstract: Provided is a surgery assistance system to perform relatively fast and accurate alignment between three-dimensional surface shape data acquired by measurement using a three-dimensional surface shape scanner and three-dimensional internal shape data acquired in advance, even when the position of the patient and the surface shape of the skin of the patient change during the surgery. A surgery assistance system (1) includes a three-dimensional surface shape scanner (20) for acquiring three-dimensional surface shape data by measuring a three-dimensional surface shape of a patient (60) and a computing device (40) for processing the data from the three-dimensional surface shape scanner. The computing device stores therein three-dimensional internal shape data of the patient that is acquired in advance by measurement using a three-dimensional tomography scanner (30).Type: ApplicationFiled: March 1, 2010Publication date: January 5, 2012Applicant: NATIONAL UNIVERSITY CORPORATION HAMAMATSU UNIVERSIInventors: Seiji Yamamoto, Toshihisa Takai, Etsukazu Hayashimoto, Akira Miura
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Publication number: 20110229385Abstract: A method of leaching copper sulfide ore includes leaching copper from copper sulfide ore using a sulfuric acid solution comprising iodide ion and iron (III) ion surplus to the iodide ion as a leaching solution; reducing iodine in a solution obtained after the leaching step to less than 1 mg/L by an activated carbon treatment; and oxidizing iron (II) ion or newly added iron (II) ion in a solution obtained after the iodine reduction step by using iron oxidizing microbes to recover iron (III) ion.Type: ApplicationFiled: March 15, 2011Publication date: September 22, 2011Applicant: JX NIPPON MINING & METALS CORPORATIONInventors: Kenichi KUWANO, Atsuko ABE, Manabu MANABE, Akira MIURA
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Patent number: 7983564Abstract: A wavelength division multiplexing system according to the present art adjusts the amount of dispersion compensation (the amount of dispersion compensation of an NZ-DSF and a DCF) every all spans on the basis of the time slot when an intensity modulation signal transmitter outputs an intensity modulation signal and the wavelength interval when a wavelength coupler multiplexes a phase modulation signal (output from a phase modulation signal transmitter) and the intensity modulation signal.Type: GrantFiled: January 31, 2008Date of Patent: July 19, 2011Assignee: Fujitsu LimitedInventors: Hiroki Ooi, Akira Miura, Takeshi Hoshida, Kentaro Nakamura, Yasushi Sugaya, Ryosuke Goto
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Publication number: 20110125006Abstract: Even when the optical axis is offset in a rigid endoscope, the actual optical axis position is measured in advance, and surgery navigation can be performed by using the actual optical axis position.Type: ApplicationFiled: March 17, 2009Publication date: May 26, 2011Inventors: Seiji Yamamoto, Toshihisa Takai, Etsukazu Hayashimoto, Masaaki Kinpara, Akira Miura
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Patent number: 7899824Abstract: A cluster extractor extracts a plurality of clusters based on communication records between communication terminals. A clustering coefficient calculator, an average path length calculator, and a degree distribution calculator calculate a clustering coefficient, an average path length in an advertisement distribution target cluster, and a degree distribution, respectively, based on communication records between communication terminals belonging to an advertisement distribution target cluster. An advertising strategy determiner determines an advertising strategy, based on the clustering coefficient and the average path length, and a distribution target determiner determines a distribution target terminal, based on the degree distribution and the advertising strategy.Type: GrantFiled: November 16, 2006Date of Patent: March 1, 2011Assignee: NTT DoCoMo, Inc.Inventors: Yoshikazu Akinaga, Jun Sasaki, Takeshi Ihara, Akira Miura
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Publication number: 20110038636Abstract: An optical add/drop multiplexer includes a first optical coupler receiving an optical signal including a plurality of multiplexed wavelengths, a wavelength blocker receiving the optical signal from the first optical coupler, and blocking at least one wavelength of the plurality of multiplexed wavelengths, a first wavelength selective switch, having one input port receiving the outputted optical signal from the first optical coupler and a plurality of output ports, demultiplexing a plurality of arbitrarily selected multiplexed wavelengths from the received optical signal, a second wavelength selective switch, having a plurality of input ports, each input port receiving a different optical signal and one output port, multiplexing a plurality of arbitrarily selected wavelength signals on the plurality of input ports, and a second optical coupler receiving the optical signal output from the wavelength blocker and multiplexed wavelength signal from the second wavelength selective switch.Type: ApplicationFiled: October 22, 2010Publication date: February 17, 2011Applicant: FUJITSU LIMITEDInventors: Yuichi AKIYAMA, Takafumi TERAHARA, Hiroki OOI, Jens C. RASMUSSEN, Akira MIURA, Akihiko ISOMURA
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Patent number: 7890773Abstract: A user terminal converts stored contents of an SD card to contain second encrypted content key data equivalent to an encrypted title key of SD Audio, and encrypted content equivalent to encrypted content of the SD Audio. Accordingly, compatibility can be realized between an encryption dual key system as a first encryption system and an encryption (single) key system as a second encryption system.Type: GrantFiled: November 14, 2006Date of Patent: February 15, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Akihiro Kasahara, Akira Miura, Hiroshi Suu, Kazunori Nakano, Shigeru Ishida
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Publication number: 20110035579Abstract: A content distribution method distributes a package containing a content from a content distribution apparatus to a terminal of a content distribution destination and causes the terminal to expand and display the content contained in the distributed package by using expansion software provided in the terminal. Update data of the expansion software is inserted in the package in addition to the content. When the terminal cannot expand the content by using the expansion software provided in it, the terminal updates the expansion software provided in it by using the update data contained in the distributed package and expands the content by using the updated expansion software.Type: ApplicationFiled: October 13, 2010Publication date: February 10, 2011Inventors: Akira MIURA, Hiroshi SUU, Akihiro KASAHARA, Kazunori NAKANO
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Patent number: 7885545Abstract: A dispersion compensation method comprising the steps of: a) providing a compensation node for each predetermined number of in-line repeaters; b) carrying out dispersion compensation for the in-line repeaters with the different bit rates in common; c) carrying out wavelength demultiplexing on the optical signal for each of the different bit rates in the compensation node; and d) setting an optimum dispersion compensation amount for the optical signal of each bit rate.Type: GrantFiled: October 25, 2004Date of Patent: February 8, 2011Assignee: Fujitsu LimitedInventors: Hiroki Ooi, Akira Miura, Kentaro Nakamura, George Ishikawa
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Patent number: 7886361Abstract: Rental business of content data is adequately performed while preventing a improper use of rights or the like by a user. Rental user key data Kuren1-3, and rental content key data Kuren1-3 includes management metadata M1-M3 and M1?-M3?, respectively. The management metadata includes data use termination date/time indicating an expiration date or the like.Type: GrantFiled: June 8, 2005Date of Patent: February 8, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Akihiro Kasahara, Akira Miura, Hiroshi Suu
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Patent number: 7860408Abstract: An interferometer for demodulating a differential M-phase shift keying signal includes a PLC type interferometer main body, a heating portion that heats the PLC type interferometer main body, and an intermediate member having a higher stiffness than that of the PLC type interferometer main body, for bonding the PLC type interferometer main body and the heating portion with each other while being sandwiched therebetween. A linear expansion coefficient difference between the PLC type interferometer main body and the intermediate member is equal to or smaller than 4.5×10?6/° C., and a thermal conductivity difference between the PLC type interferometer main body and the intermediate member is equal to or larger than 10 W/mK. A phase of an optical signal flowing through the interferometer is adjusted by using the heating portion and a second heating portion.Type: GrantFiled: January 10, 2007Date of Patent: December 28, 2010Assignees: Fujitsu Limited, Yokogawa Electric Corporation, Hitachi Cable Ltd.Inventors: Akihiko Isomura, Jens Rasmussen, Takafumi Terahara, Kentaro Nakamura, Takeshi Hoshida, George Ishikawa, Hiroshi Onaka, Morio Wada, Hiroyuki Matsuura, Akira Miura, Yasuyuki Suzuki, Hideaki Arai, Satoshi Takasugi
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Publication number: 20100313713Abstract: An object of the present invention is to provide a method of copper leaching without reducing the growth of iron-oxidizing bacterium and the iron-oxidizing capacity when leaching copper from a copper sulfide ore with the use of a sulfuric acid solution to which iron-oxidizing bacteria and silver have been added. The present invention provides a method of leaching copper from a copper sulfide ore, characterized by comprising adding a naturally occurring nitrogen-containing organic component to a leaching solution upon copper leaching from a copper sulfide ore with the use of, as the leaching solution, a sulfuric acid solution to which iron-oxidizing bacteria and silver have been added is provided.Type: ApplicationFiled: November 25, 2009Publication date: December 16, 2010Inventors: Takenari KUWAZAWA, Akira MIURA
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Patent number: 7853148Abstract: An optical add/drop multiplexer includes a first optical coupler receiving an optical signal including a plurality of multiplexed wavelengths, a wavelength blocker receiving the optical signal from the first optical coupler, and blocking at least one wavelength of the plurality of multiplexed wavelengths, a first wavelength selective switch, having one input port receiving the outputted optical signal from the first optical coupler and a plurality of output ports, demultiplexing a plurality of arbitrarily selected multiplexed wavelengths from the received optical signal, a second wavelength selective switch, having a plurality of input ports, each input port receiving a different optical signal and one output port, multiplexing a plurality of arbitrarily selected wavelength signals on the plurality of input ports, and a second optical coupler receiving the optical signal output from the wavelength blocker and multiplexed wavelength signal from the second wavelength selective switch.Type: GrantFiled: February 13, 2009Date of Patent: December 14, 2010Assignee: Fujitsu LimitedInventors: Yuichi Akiyama, Takafumi Terahara, Hiroki Ooi, Jens C. Rasmussen, Akira Miura, Akihiko Isomura
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Patent number: 7848662Abstract: A delay interferometer and a demodulator including the delay interferometer and a balanced photodetector are provided. A half mirror splits an optical signal into first and second split beams of light which travel on first and second optical paths, respectively. A first reflector being disposed on the first optical path reflects the first split beam of light toward the half mirror. The second reflector being disposed on the second optical path reflects the second split beam of light toward the half mirror. At least one phase compensator being disposed between the half mirror and at least one of the first and second reflectors includes a medium that exhibits thermooptic effect and has temperature dependency of refractive index. The half mirror couples the first and second split beams of light to generate at least first and second coupled beams of light.Type: GrantFiled: May 3, 2007Date of Patent: December 7, 2010Assignee: Yokogawa Electric CorporationInventors: Yasuyuki Suzuki, Yoshihiro Sanpei, Morio Wada, Hiroyuki Matsuura, Akira Miura
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Patent number: 7848659Abstract: A data modulator unit generates a DQPSK optical signal in accordance with a data signal. A phase shift unit provides a phase difference of ?/2 between a pair of arms. A photodetector converts an output signal of the data modulator unit into an electrical signal. A filter is a low-pass filter with a cut-off frequency lower than a symbol frequency, and filters an output signal of the photodetector. A monitor unit detects power of an output signal of the filter. A phase difference control unit adjusts the amount of phase shift in the phase shift unit so as to minimize power of an output signal of the filter.Type: GrantFiled: December 12, 2005Date of Patent: December 7, 2010Assignee: Fujitsu LimitedInventors: Akira Miura, Kentaro Nakamura, Hiroshi Onaka, Yuichi Akiyama, Hiroki Ooi, Jens Rasmussen, Takeshi Hoshida
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Patent number: 7840960Abstract: A content distribution method distributes a package containing a content from a content distribution apparatus to a terminal of a content distribution destination and causes the terminal to expand and display the content contained in the distributed package by using expansion software provided in the terminal. Update data of the expansion software is inserted in the package in addition to the content. When the terminal cannot expand the content by using the expansion software provided in it, the terminal updates the expansion software provided in it by using the update data contained in the distributed package and expands the content by using the updated expansion software.Type: GrantFiled: May 27, 2005Date of Patent: November 23, 2010Assignee: Kabushiki Kaisha ToshibaInventors: Akira Miura, Hiroshi Suu, Akihiro Kasahara, Kazunori Nakano
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Patent number: 7823211Abstract: A personal computer PC transmits to a server encoded user information and encoded license information, etc. contained in a secure recording medium. The server decodes the encoded license information to obtain license information. Then, the server deletes the encoded license information contained in the secure recording medium via the personal computer PC. The server decodes the decoded user information contained in a secure recording medium to obtain user information. Then, the server encodes the license information based on the user information to write the obtained encoded license information into the secure recording medium via the personal computer PC. In this manner, license information can be moved between two secure media and convenience can be improved.Type: GrantFiled: May 27, 2005Date of Patent: October 26, 2010Assignees: Kabushiki Kaisha Toshiba, Toshiba Solutions CorporationInventors: Shinichi Matsukawa, Akihiro Kasahara, Hiroshi Suu, Taku Kato, Kazunori Nakano, Akira Miura
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Publication number: 20100268948Abstract: A recording device comprises a memory unit configured to be communicationable with an external device and to record key data for encryption of content data through an authentication process, and a controller which controls the memory unit. The memory unit comprises a normal recording unit which is accessible from the exterior through the controller without an authentication process, a protected recording unit which is accessible from the external device when authentication of a first authentication process completes, and a writing restricted/protected recording unit which is accessible from the external device when authentication of a second authentication completes and is unwritable and unaccessible from the external device when authentication of only the first authentication process completes.Type: ApplicationFiled: February 24, 2010Publication date: October 21, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shinichi MATSUKAWA, Taku Kato, Akihiro Kasahara, Hiroshi Suu, Akira Miura, Atsushi Kondo, Hiroyuki Sakamoto
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Publication number: 20100268953Abstract: A recording device configured to store content data in an encrypted manner, the recording device comprises a memory unit which stores various data, and a controller which controls the memory unit. The controller possesses a controller key and unique identification information, and is configured to generate a controller-unique key unique for each controller in accordance with the controller key and the identification information. The memory unit stores an MKB generated by encrypting a medium key with a device key set that is a collection of a plurality of device keys, an encrypted device key set generated by encrypting the device key set with the controller-unique key, and a device-key-set index which uniquely identifies the device key set.Type: ApplicationFiled: March 4, 2010Publication date: October 21, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Shinichi Matsukawa, Taku Kato, Akihiro Kasahara, Hiroshi Suu, Atsushi Kondo, Jun Sato, Akira Miura, Hiroyuki Sakamoto
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Patent number: 7792428Abstract: A core unit arranged in a transmission path includes a through path for causing an input signal to an input port to pass through to an output port, a drop-side port 25a that drops the input signal having a predetermined wavelength, and an add-side port 25b that adds channel having a predetermined wavelength to the input light.Type: GrantFiled: August 16, 2005Date of Patent: September 7, 2010Assignee: Fujitsu LimitedInventors: Yuichi Akiyama, Takafumi Terahara, Hiroki Ooi, Jens C. Rasmussen, Akira Miura, Akihiko Isomura