Patents by Inventor Susumu Nakano
Susumu Nakano 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: 7654094Abstract: A turbine nozzle (2) that, among components constructing a turbine, reaches particularly high temperature is efficiently cooled with a relatively simple structure. A double casing structure in which a turbine casing (7) is provided outside a turbine shell (5) is formed. The turbine casing (7) functions as a flow path (24) for compressed air (20?21) before combustion. The turbine shell (5) covers a turbine nozzle (2) and a radial turbine impeller (3) and forms flow paths (15, 16) for combustion gas (10?11?12?13). The compressed air (21) before combustion flowing in the flow path (24), for compressed air, having air-tightness between itself and the outside air is blown to the turbine nozzle (2) through a through-hole (51) penetrating both wall surfaces of the turbine shell (5) so that the turbine nozzle (2) is evenly cooled and the compressed air used to cool the turbine nozzle is made to flow toward the turbine impeller (3).Type: GrantFiled: March 9, 2004Date of Patent: February 2, 2010Assignee: Hitachi, Ltd.Inventors: Manabu Yagi, Kuniyoshi Tsubouchi, Tadaharu Kishibe, Susumu Nakano, Satoshi Dodo
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Publication number: 20090224050Abstract: A method for processing a digital signal obtained in a barcode reading operation comprises a step of applying a wavelet transformation to the digital signal. The noise threshold at each level of the wavelet transformation is determined from a total transfer function in the analogue processing stage, and the coefficients are set to be zero if less than the noise threshold.Type: ApplicationFiled: April 23, 2009Publication date: September 10, 2009Applicants: Optoelectronics Co., Ltd., Opticon, Inc.Inventors: Hiroshi Hayakawa, Susumu Nakano, Kentaro Takahashi
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Publication number: 20090107156Abstract: In a heat pump system including a water purifier and an evaporator for evaporating feed-water to produce steam, water used for spray cooling is effectively used and productivity of purified water used for the spray cooling is increased. Discharged water from the water purifier is supplied to the evaporator when water used for spray cooling is produced by use of the water purifier. Otherwise, drain of the evaporator having higher temperature is supplied to the water purifier by using such a fact that in a reverse osmosis membrane type water purifier, the higher the temperature of feed-water is, the higher the purified water productivity becomes.Type: ApplicationFiled: August 29, 2008Publication date: April 30, 2009Inventors: Tadaharu KISHIBE, Susumu Nakano, Takanori Shibata
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Patent number: 7526130Abstract: A method for processing a digital signal obtained in a barcode reading operation comprises a step of applying a wavelet transformation to the digital signal. The noise threshold at each level of the wavelet transformation is determined from a total transfer function in the analogue processing stage, and the coefficients are set to be zero if less than the noise threshold.Type: GrantFiled: October 18, 2005Date of Patent: April 28, 2009Assignee: Optoelectronics Co., Ltd.Inventors: Hiroshi Hayakawa, Susumu Nakano, Kentaro Takahashi
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Publication number: 20090077943Abstract: Provided is a gas turbine power plant in which a rotor of a generator is journalled by water lubrication bearings into which a part of cooling water for cooling the generator is fed. Since the lubrication water has a viscosity lower than that of lubrication oil, it is possible to provide a gas turbine power plant with less energy loss resulting in lower power consumption for accessories, and in high power generation efficiency.Type: ApplicationFiled: August 13, 2008Publication date: March 26, 2009Inventors: Susumu Nakano, Satoshi Dodo, Kuniyoshi Tsubouchi, Manabu Yagi, Itsurou Sawada, Tomoaki Inoue, Makoto Hemmi
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Publication number: 20090044536Abstract: A gas turbine power generator plant, intended to reduce its noise by making small the intake and exhaust outlets of the cooing air channel of a case, comprises an engine core in which a turbine, a compressor and a generator are installed on the same axis, a combustor for burning air for combustion compressed by the compressor and supplying the air to the turbine, a radiator for cooling a coolant or a lubricant, a cooling fan for ventilating the radiator with cooling air, an electric power converter for converting electric power generated by the generator, and the case for housing these constituent elements. And, a combustion air channel passing the compressor, the combustor and the turbine and a cooling air channel passing the radiator, the cooling fan and the electric power converter are formed as mutually independent channels from intake to exhaust.Type: ApplicationFiled: June 9, 2008Publication date: February 19, 2009Inventors: Susumu Nakano, Masaya Ichinose, Masanori Watanabe, Kuniyoshi Tsubouchi, Toshihiko Fukushima, Masatoshi Watanabe
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Patent number: 7482710Abstract: A power generation system includes a first unit power generation system having a storage battery, a second unit power generation system having no storage battery and a controller, at a time of starting up of the power generation system, the controller first starts up the first unit power generation system and then starts up the second unit power generation system having no storage battery by supplying electric power generated by the first unit power generation system to the second unit power generation system.Type: GrantFiled: February 14, 2005Date of Patent: January 27, 2009Assignee: Hitachi, Ltd.Inventors: Masaya Ichinose, Motoo Futami, Susumu Nakano
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Publication number: 20080216461Abstract: A micro gas turbine system is provided which increases power generation efficiency and output of power generation by means of water spray and which can exercise effective water spray control with simple control. The micro gas turbine system, according to the present invention, including a compressor, a combustor, a regenerative heat exchanger, a generator and a power transducer is provided with a plurality of spray water supply lines which include spray water nozzles and shutoff valves and which supply a prescribed amount of spray water by opening and closing the shutoff valves.Type: ApplicationFiled: December 14, 2005Publication date: September 11, 2008Inventors: Susumu Nakano, Satoshi Dodo, Hisamichi Inoue, Hiroyuki Shiraiwa
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Patent number: 7409832Abstract: A gas turbine power generator plant, intended to reduce its noise by making small the intake and exhaust outlets of the cooing air channel of a case, comprises an engine core in which a turbine, a compressor and a generator are installed on the same axis, a combustor for burning air for combustion compressed by the compressor and supplying the air to the turbine, a radiator for cooling a coolant or a lubricant, a cooling fan for ventilating the radiator with cooling air, an electric power converter for converting electric power generated by the generator, and the case for housing these constituent elements. And, a combustion air channel passing the compressor, the combustor and the turbine and a cooling air channel passing the radiator, the cooling fan and the electric power converter are formed as mutually independent channels from intake to exhaust.Type: GrantFiled: January 14, 2005Date of Patent: August 12, 2008Assignee: Hitachi, Ltd.Inventors: Susumu Nakano, Masaya Ichinose, Masanori Watanabe, Kuniyoshi Tsubouchi, Toshihiko Fukushima, Masatoshi Watanabe
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Publication number: 20080092515Abstract: A turbine nozzle (2) that, among components constructing a turbine, reaches particularly high temperature is efficiently cooled with a relatively simple structure. A double casing structure in which a turbine casing (7) is provided outside a turbine shell (5) is formed. The turbine casing (7) functions as a flow path (24) for compressed air (20?21) before combustion. The turbine shell (5) covers a turbine nozzle (2) and a radial turbine impeller (3) and forms flow paths (15, 16) for combustion gas (10?11?12?13). The compressed air (21) before combustion flowing in the flow path (24), for compressed air, having air-tightness between itself and the outside air is blown to the turbine nozzle (2) through a through-hole (51) penetrating both wall surfaces of the turbine shell (5). By this, the turbine nozzle (2) is cooled and the compressed air used to cool the turbine nozzle is made to flow toward the turbine impeller (3).Type: ApplicationFiled: March 9, 2004Publication date: April 24, 2008Inventors: Manabu Yagi, Kuniyoshi Tsubouchi, Tadaharu Kishibe, Susumu Nakano, Satoshi Dodo
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Patent number: 7354000Abstract: A method and system used in the barcode sensing process are disclosed, in which at least two instances of an optical signal are obtained from the same barcode in different time periods, and digitized by a first digitizer with a first threshold. The digitized results from the at least two instances are then applied with an AND algorithm to eliminate the noise, whereby create a correct digitized output. Preferably, the instances of the signal are also digitized by a second digitizer with a second threshold, which are used to synchronize the timing of the digitized results created by the first digitizer. The second threshold is preferably larger than the first threshold.Type: GrantFiled: May 5, 2005Date of Patent: April 8, 2008Assignee: Optoelectronics Co., Ltd.Inventors: Susumu Nakano, Kentaro Takahashi, Hiroshi Hayakawa
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Publication number: 20070256416Abstract: A combustor for a gas turbine capable of performing stable combustion even by using high temperature air, comprising a first burner (5) jetting fuel and air into a combustion chamber (2) and a second burner (8) causing the circulating jet of the fuel and air installed at a position corresponding to the tip part of a flame caused by the first burner (5).Type: ApplicationFiled: December 16, 2003Publication date: November 8, 2007Inventors: Satoshi Dodo, Susumu Nakano, Kuniyoshi Tsubouchi, Shohei Yoshida, Yoshitaka Hirata
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Publication number: 20070241896Abstract: An infrared sensor switch of the invention comprises an infrared sensor with a detection range, and a controller that uses the sensor to try to detect whether or not a person exists in the detection range and controls on and off of a corresponding load unit based on each detection result obtained from the sensor. The switch further comprises a sensor block provided with the sensor, and a housing that is put in a wall and retains the block so that the center axis of the detection range can be rotated about a horizontal axis and rotated up to at least 40 degrees downward from a forward direction of 0 degree.Type: ApplicationFiled: April 12, 2007Publication date: October 18, 2007Applicant: MATSUSHITA ELECTRIC WORKS, LTD.Inventors: Makiko Matsuoka, Tomohiro Ieki, Koji Yokota, Hajime Yabu, Susumu Nakano, Kei Miura
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Publication number: 20070086670Abstract: A method for processing a digital signal obtained in a barcode reading operation comprises a step of applying a wavelet transformation to the digital signal. The noise threshold at each level of the wavelet transformation is determined from a total transfer function in the analogue processing stage, and the coefficients are set to be zero if less than the noise threshold.Type: ApplicationFiled: October 18, 2005Publication date: April 19, 2007Inventors: Hiroshi Hayakawa, Susumu Nakano, Kentaro Takahashi
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Publication number: 20060249583Abstract: A method and system used in the barcode sensing process are disclosed, in which at least two instances of an optical signal are obtained from the same barcode in different time periods, and digitized by a first digitizer with a first threshold. The digitized results from the at least two instances are then applied with an AND algorithm to eliminate the noise, whereby create a correct digitized output. Preferably, the instances of the signal are also digitized by a second digitizer with a second threshold, which are used to synchronize the timing of the digitized results created by the first digitizer. The second threshold is preferably larger than the first threshold.Type: ApplicationFiled: May 5, 2005Publication date: November 9, 2006Inventors: Susumu Nakano, Kentaro Takahashi, Hiroshi Hayakawa
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Publication number: 20050206343Abstract: A power generation system includes a first unit power generation system having a storage battery, a second unit power generation system having no storage battery and a controller, at a time of starting up of the power generation system, the controller first starts up the first unit power generation system and then starts up the second unit power generation system having no storage battery by supplying electric power generated by the first unit power generation system to the second unit power generation system.Type: ApplicationFiled: February 14, 2005Publication date: September 22, 2005Inventors: Masaya Ichinose, Motoo Futami, Susumu Nakano
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Patent number: 6945462Abstract: An optical information reading apparatus applies light to an object to be read such as a bar code symbol, photoelectrically converts by a photodetector element a light image formed by the reflection light, and processes the obtained electric signal to output code data. Among the portions performing the signal processing, at least a data converter (13) for converting a photoelectrically converted electric signal into a digital signal, a digital signal calculation unit (17) for calculating the digital signal and generating code data indicating information of an object to be read, an input accumulation unit (20) for accumulating the code data, and a timing control unit (12) for controlling operation timings of these components are arranged on a single substrate as a multipurpose processing circuit block (10).Type: GrantFiled: May 24, 2002Date of Patent: September 20, 2005Assignee: Optoelectronics Co., Ltd.Inventors: Sachio Tsukuda, Susumu Nakano
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Publication number: 20050173538Abstract: An optical information reading apparatus applies light to an object to be read such as a bar code symbol, photoelectrically converts by a photodetector element a light image formed by the reflection light, and processes the obtained electric signal to output code data. Among the portions performing the signal processing, at least a data converter (13) for converting a photoelectrically converted electric signal into a digital signal, a digital signal calculation unit (17) for calculating the digital signal and generating code data indicating information of an object to be read, an input accumulation unit (20) for accumulating the code data, and a timing control unit (12) for controlling operation timings of these components are arranged on a single substrate as a multipurpose processing circuit block (10).Type: ApplicationFiled: May 24, 2002Publication date: August 11, 2005Inventors: Sachio Tsukuda, Susumu Nakano
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Publication number: 20050160740Abstract: A gas turbine power generator plant, intended to reduce its noise by making small the intake and exhaust outlets of the cooing air channel of a case, comprises an engine core in which a turbine, a compressor and a generator are installed on the same axis, a combustor for burning air for combustion compressed by the compressor and supplying the air to the turbine, a radiator for cooling a coolant or a lubricant, a cooling fan for ventilating the radiator with cooling air, an electric power converter for converting electric power generated by the generator, and the case for housing these constituent elements. And, a combustion air channel passing the compressor, the combustor and the turbine and a cooling air channel passing the radiator, the cooling fan and the electric power converter are formed as mutually independent channels from intake to exhaust.Type: ApplicationFiled: January 14, 2005Publication date: July 28, 2005Inventors: Susumu Nakano, Masaya Ichinose, Masanori Watanabe, Kuniyoshi Tsubouchi, Toshihiko Fukushima, Masatoshi Watanabe
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Publication number: 20050039433Abstract: Provided is a gas turbine power plant in which a rotor of a generator is journalled by water lubrication bearings into which a part of cooling water for cooling the generator is fed. Since the lubrication water has a viscosity lower than that of lubrication oil, it is possible to provide a gas turbine power plant with less energy loss resulting in lower power consumption for accessories, and in high power generation efficiency.Type: ApplicationFiled: July 23, 2004Publication date: February 24, 2005Inventors: Susumu Nakano, Satoshi Dodo, Kuniyoshi Tsubouchi, Manabu Yagi, Itsurou Sawada, Tomoaki Inoue, Makoto Hemmi