Patents by Inventor Satoshi Furuta
Satoshi Furuta 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: 7026268Abstract: The present invention provides a concentration distribution for a platinum group metal component in a catalyst with which catalyst activity can be increased, and to provide a method for supporting a platinum group metal with which this concentration distribution can be achieved. The present invention is a solid acid catalyst that is made up of porous catalyst pellets exhibiting solid acid characteristics, and a platinum group metal component supported by these catalyst pellets, and that is used in an acid-catalyzed reaction, in which a quotient of dividing the standard deviation of the concentration in a platinum group metal component concentration distribution in the catalyst by an average concentration is 0.4 or less. The method for preparing this catalyst involves a step of preparing a support solution containing a platinum group metal as a cation, and a step of impregnating crystalline, porous catalyst pellets exhibiting solid acid characteristics with this support solution.Type: GrantFiled: February 28, 2002Date of Patent: April 11, 2006Assignee: Japan Energy CorporationInventors: Satoshi Furuta, Minoru Ogawa
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Patent number: 6983383Abstract: A power supply control device is provided with a first power supply input terminal to which a power supply is provided and a second power supply input terminal to which a power supply is provided. A power supply input detection unit detects an instance when the input of the second power supply input terminal is above a predetermined value and then a switch unit cuts off power supplied from the first power supply input terminal and activates power supply from the second power supply input terminal when the input from the second power supply input terminal is above a predetermined value according to the power supply input detection unit. A power supply processor processes a power supply supplied by way of the first or second power supply input terminal.Type: GrantFiled: December 1, 1999Date of Patent: January 3, 2006Assignee: Fujitsu LimitedInventors: Shuko Saito, Akira Minami, Shigeyoshi Tanaka, Satoshi Furuta
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Patent number: 6977879Abstract: A clock adjustment apparatus for adjusting a phase of a clock signal based on a phase error thereof is provided in a data reproduction system which samples a readout signal from a recording medium in synchronism with the clock signal, and reproduces data in accordance with a Viterbi algorithm by using sampled values of the readout signal. The recording medium is recorded with the data modulated in accordance with a recording rule of a predetermined partial response characteristic. The clock adjustment apparatus includes a phase error calculation circuit which calculates the phase error of the clock signal based on the sampled values of the readout signal.Type: GrantFiled: September 7, 2000Date of Patent: December 20, 2005Assignee: Fujitsu LimitedInventors: Kenichi Hamada, Satoshi Furuta, Masakazu Taguchi
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Patent number: 6947361Abstract: A data reproduction apparatus includes first and second sampling parts which sample a reproduced signal from a recording medium in synchronism with first and second clock signals synchronizing respectively with leading and trailing edges of the reproduced signal and output leading and trailing sampled values, respectively, and a combination part which generates combined sampled values based on the leading and trailing sampled values. Recorded data is reproduced based on transition states of the combined sampled values output from the combination part in accordance with a maximum likelihood decoding technique corresponding to a predetermined partial response waveform.Type: GrantFiled: September 19, 2001Date of Patent: September 20, 2005Assignee: Fujitsu LimitedInventors: Satoshi Furuta, Shigenori Yanagi
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Patent number: 6920654Abstract: The water shower apparatus according to the present invention is constructed in a way to produce cold air intercepting screen having warming effects around the bather. In this water shower apparatus, the shower sprayed from the wide-angle spray nozzle of the shower system forms a shower curtain. That water shower of thin cold air intercepting screen is sprayed toward about the neck and the shoulders to the flanks of the bather. And, the shower curtain formed this way wraps about the horizontal face under the neck of the bather, the vertical face about in the vertical direction on the left and the right sides of the bather's body, and the front face centering on the lower half portion of the bather's body. This enables to intercept cold air from outside and enclose the hot air inside. Production of “cold feeling” at the time of entry of the bather into the chilled bathroom can be prevented. The entire body of the bather can be warmed with bathing.Type: GrantFiled: June 28, 2001Date of Patent: July 26, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masao Noguchi, Akihiko Nakashima, Shigeru Shirai, Masaaki Kawaguri, Satoshi Furuta
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Publication number: 20050109982Abstract: An agent for removing organic chlorine compounds which is composed of (A) an iron powder having a BET specific surface area of from 0.010 to 3 m2/g, and (B1) a powder of at least one species of metal selected from the group VIII elements (excluding Fe) in the periodic table, and/or (B2) a porous substance in powder form supporting said metal. If the agent is composed of (A) and (B1), the amount of (B1) is 0.01 to 10 parts by mass for 100 parts by mass of (A). If the agent is composed of (A) and (B2), the amount of (B2) is 0.0001 to 10 parts by mass for 100 parts by mass of (A). This agent is capable of removing organic chlorine compounds efficiently.Type: ApplicationFiled: October 25, 2004Publication date: May 26, 2005Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Keita Yura, Masaaki Matsubara, Yasuko Yakou, Hitoshi Sakuma, Yoshikazu Seki, Satoshi Furuta, Koji Yamamoto
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Patent number: 6876607Abstract: A data recording method for calculating a digital sum value (DSV) corresponding to a proportion of positive data and negative data included in predetermined data ranges, selecting a resync pattern to be inserted between the data ranges according to the DSV, and inserting the selected resync pattern between the data ranges, has a step of selecting a resync pattern that minimizes differences in DSV between the data ranges.Type: GrantFiled: January 18, 2001Date of Patent: April 5, 2005Assignee: Fujitsu LimitedInventors: Satoshi Furuta, Kenichi Hamada, Akira Nanba, Masakazu Taguchi
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Patent number: 6831884Abstract: In a data reproducing apparatus, a monitor edge sample value is generated based on a second sample value at a trailing edge of the reproduction signal and a change amount of the monitor edge sample value is generated as an offset amount in a first processing part. Then, the offset amount is supplied to a second processing part where the second sample value is obtained by sampling the reproduction signal at the trailing edge. Then, the second processing part restores data based on the reproduction signal and the offset amount.Type: GrantFiled: November 26, 2001Date of Patent: December 14, 2004Assignee: Fujitsu LimitedInventors: Kenichi Hamada, Satoshi Furuta, Shigenori Yanagi
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Patent number: 6758149Abstract: This invention provides a refuse incinerator capable of extinguishing smoke and odor of exhaust gas emitted from, combustion of the refuse just after incineration of the refuse is started. Exhaust gas outlets are provided in a furnace lid of the incineration furnace, an exhaust gas chamber is provided such that the furnace lid is used as part of a bottom wall thereof and an exhaust gas introduction pipe is provided to communicate between the exhaust gas chamber and a combustion chamber. Exhaust gas emitted into the exhaust gas chamber is introduced into the combustion chamber and burnt so as to extinguish the smoke and odor. Because the combustion chamber reaches high temperatures just after the incineration of the refuse is started, the smoke and odor of the exhaust gas are extinguished just after the incineration of the refuse is started.Type: GrantFiled: May 30, 2003Date of Patent: July 6, 2004Assignees: Meito Corporation, MCR Co., Ltd.Inventors: Masatoshi Oiwa, Hideo Hirano, Satoshi Furuta
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Publication number: 20040067845Abstract: The present invention provides a concentration distribution for a platinum group metal component in a catalyst with which catalyst activity can be increased, and to provide a method for supporting a platinum group metal with which this concentration distribution can be achieved. The present invention is a solid acid catalyst that comprises porous catalyst pellets exhibiting solid acid characteristics, and a platinum group metal component supported by these catalyst pellets, and that is used in an acid-catalyzed reaction, in which a quotient of dividing the standard deviation of concentration in a platinum group metal component concentration distribution in the catalyst by an average concentration is 0.4 or less. The method for preparing. this catalyst comprises a step of preparing a support solution containing a platinum group metal as a cation, and a step of impregnating crystalline, porous catalyst pellets exhibiting solid acid characteristics with this support solution.Type: ApplicationFiled: August 21, 2003Publication date: April 8, 2004Inventors: Satoshi Furuta, Minoru Ogawa
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Publication number: 20030226483Abstract: This invention provides a refuse incinerator capable of extinguishing smoke and odor of exhaust gas emitted from, combustion of the refuse just after incineration of the refuse is started. Exhaust gas outlets are provided in a furnace lid of the incineration furnace, an exhaust gas chamber is provided such that the furnace lid is used as part of a bottom wall thereof and an exhaust gas introduction pipe is provided to communicate between the exhaust gas chamber and a combustion chamber. Exhaust gas emitted into the exhaust gas chamber is introduced into the combustion chamber and burnt so as to extinguish the smoke and odor. Because the combustion chamber reaches high temperatures just after the incineration of the refuse is started, the smoke and odor of the exhaust gas are extinguished just after the incineration of the refuse is started.Type: ApplicationFiled: May 30, 2003Publication date: December 11, 2003Inventors: Masatoshi Oiwa, Hideo Hirano, Satoshi Furuta
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Publication number: 20030227851Abstract: An information recording and reproduction apparatus has a turbo decoder that decodes turbo encoded data. The turbo decoder has a number of likelihood ratio calculation units, forward direction path probability calculation units the number of which is less than the number of the likelihood ratio calculation units, and backward direction path probability calculation units the number of which is less than the number of the likelihood ratio calculation units. The likelihood ratio calculation units calculate in parallel the likelihood ratio for each of a plurality of data blocks. The forward direction path probability calculation units time-divisionally calculate probabilities of the forward direction paths for the data blocks. The backward direction path probability calculation units time-divisionally calculate probabilities of the backward direction paths for the data blocks.Type: ApplicationFiled: January 13, 2003Publication date: December 11, 2003Applicant: FUJITSU LIMITEDInventors: Satoshi Furuta, Katsuhiko Fukuda, Akihiro Itakura
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Patent number: 6603722Abstract: A data reproduction system, which determines reproduced data based on comparison results of path metrics calculated in accordance with a Viterbi algorithm based on branch metrics calculated from expected values and a sampled value of a readout signal, includes an expected value setting unit for variably setting the expected values used for a calculation of the branch metrics in order to perform a Viterbi detection process without being easily affected by the transient response, offset variation, phase error and nonlinear torsion component of the readout signal. The readout signal is obtained from a recording medium on which data is recorded in accordance with a recording signal of a partial response waveform, the expected values are determined by the partial response waveform, and the sampled value is obtained by sampling the readout signal at a predetermined frequency.Type: GrantFiled: October 19, 2000Date of Patent: August 5, 2003Assignee: Fujitsu LimitedInventors: Masakazu Taguchi, Satoshi Furuta, Toru Fujiwara
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Publication number: 20020181360Abstract: In a data reproducing apparatus, a monitor edge sample value is generated based on a second sample value at a trailing edge of the reproduction signal and a change amount of the monitor edge sample value is generated as an offset amount in a first processing part. Then, the offset amount is supplied to a second processing part where the second sample value is obtained by sampling the reproduction signal at the trailing edge. Then, the second processing part restores data based on the reproduction signal and the offset amount.Type: ApplicationFiled: November 26, 2001Publication date: December 5, 2002Applicant: FUJITSUInventors: Kenichi Hamada, Satoshi Furuta, Shigenori Yanagi
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Publication number: 20020176344Abstract: A data reproduction apparatus includes first and second sampling parts which sample a reproduced signal from a recording medium in synchronism with first and second clock signals synchronizing respectively with leading and trailing edges of the reproduced signal and output leading and trailing sampled values, respectively, and a combination part which generates combined sampled values based on the leading and trailing sampled values. Recorded data is reproduced based on transition states of the combined sampled values output from the combination part in accordance with a maximum likelihood decoding technique corresponding to a predetermined partial response waveform.Type: ApplicationFiled: September 19, 2001Publication date: November 28, 2002Applicant: FUJITSU LIMITEDInventors: Satoshi Furuta, Shigenori Yanagi
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Publication number: 20020040500Abstract: The water shower apparatus according to the present invention is constructed in a way to produce cold air intercepting screen having warming effects around the bather. In this water shower apparatus, the shower sprayed from the wide-angle spray nozzle of the shower system forms a shower curtain. That water shower of thin cold air intercepting screen is sprayed toward about the neck and the shoulders to the flanks of the bather. And, the shower curtain formed this way wraps about the horizontal face under the neck of the bather, the vertical face about in the vertical direction on the left and the right sides of the bather's body, and the front face centering on the lower half portion of the bather's body. This enables to intercept cold air from outside and enclose the hot air inside. Production of “cold feeling” at the time of entry of the bather into the chilled bathroom can be prevented. The entire body of the bather can be warmed with bathing.Type: ApplicationFiled: June 28, 2001Publication date: April 11, 2002Inventors: Masao Noguchi, Akihiko Nakashima, Shigeru Shirai, Masaaki Kawaguri, Satoshi Furuta
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Publication number: 20020001264Abstract: A data recording method for calculating a digital sum value (DSV) corresponding to a proportion of positive data and negative data included in predetermined data ranges, selecting a resync pattern to be inserted between the data ranges according to the DSV, and inserting the selected resync pattern between the data ranges, has a step of selecting a resync pattern that minimizes differences in DSV between the data ranges.Type: ApplicationFiled: January 18, 2001Publication date: January 3, 2002Applicant: FUJITSU LIMITEDInventors: Satoshi Furuta, Kenichi Hamada, Akira Nanba, Masakazu Taguchi
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Patent number: 6325000Abstract: A waste incineration machine capable of rendering a waste gas occurring during the combustion of waste smokeless and odorless. A heat insulating wall to which a first far infrared ray radiator is fixed is provided so as to surround a combustion furnace and a combustion chamber, and a heat exchanger so as to surround the heat insulating wall. An inner flue is formed between the heat insulating wall and combustion furnace, and an outer flue serving as a waste gas convection chamber between the heat insulating wall and heat exchanger. An upper part of a communication portion between the inner and outer flues is covered with a heat insulating member constituting a second far infrared ray radiator so as to subject the waste gas to secondary heating using far infrared rays, and thereby to render the waste gas smokeless and odorless.Type: GrantFiled: October 31, 2000Date of Patent: December 4, 2001Assignee: Meito CorporationInventor: Satoshi Furuta
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Patent number: 6151282Abstract: A clock matching apparatus for a data reproduction system includes a phase error detection unit which detects a phase error of a clock signal based on samples of a readout signal output by a sampler of the data reconstruction system. A phase-locked loop supplies a phase-matched clock signal to the sampler by compensating for the phase error detected by the phase error detection unit. The phase error detection unit includes an edge detection unit which detects a sampling instant for an edge sample among the samples of the readout signal. A difference unit generates a difference in timing phase between the edge sample and a sync level, the sync level being a reference signal level corresponding to a level of the readout signal at the sampling instants thereof and defined based on a partial-response waveform, the difference in the timing phase being output to the phase-locked loop as the detected phase error.Type: GrantFiled: September 30, 1999Date of Patent: November 21, 2000Assignee: Fujitsu LimitedInventors: Kenichi Hamada, Satoshi Furuta, Masakazu Taguchi, Toru Fujiwara
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Patent number: 6115350Abstract: An optical disk apparatus adapted to a mark edge recording method having a structure such that a data pattern experimentally recorded on an optical disk with one write power is reproduced plural times while changing reproducing conditions (for example, a slice level for binary-coding a reproduced analog signal) and the number of errors is calculated whenever the reproducing process is performed. The thus-structured process is repeated for using a plurality of write powers. An appropriate write power for the optical disk is determined in accordance with the obtained results of the calculations of the number of errors. In a case of a read-only optical disk, a data pattern experimentally and previously recorded on the optical disk is reproduced plural times by changing the reproducing conditions (for example, a slice level for binary-coding a reproduced analog signal), and the number of errors is calculated whenever the reproducing process is performed.Type: GrantFiled: February 16, 1999Date of Patent: September 5, 2000Assignee: Fujitsu LimitedInventors: Satoshi Furuta, Toru Fujiwara, Shigenori Yanagi, Tadashi Sagawa, Masaharu Moritsugu