Patents by Inventor Eiji Iwasaki
Eiji Iwasaki 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: 9016051Abstract: A burner device placed upstream of an exhaust treatment device mounted in an exhaust pipe to raise a temperature of an exhaust gas, comprises a fuel supply valve for supplying fuel into the exhaust pipe, an igniter that ignites the fuel supplied from the fuel supply valve, and a burner catalyst held in the exhaust pipe through a support member. The support member is formed in a corrugated shape in cross section including outer arc-shaped portions in contact with the exhaust pipe, inner arc-shaped portions in contact with an outer peripheral member of the burner catalyst, and coupling portions for coupling the outer arc-shaped portions and the inner arc-shaped portions to each other.Type: GrantFiled: January 31, 2011Date of Patent: April 28, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventor: Eiji Iwasaki
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Publication number: 20130276437Abstract: A burner device placed upstream of an exhaust treatment device mounted in an exhaust pipe to raise a temperature of an exhaust gas, comprises a fuel supply valve for supplying fuel into the exhaust pipe, an igniter that ignites the fuel supplied from the fuel supply valve, and a burner catalyst held in the exhaust pipe through a support member. The support member is formed in a corrugated shape in cross section including outer arc-shaped portions in contact with the exhaust pipe, inner arc-shaped portions in contact with an outer peripheral member of the burner catalyst, and coupling portions for coupling the outer arc-shaped portions and the inner arc-shaped portions to each other.Type: ApplicationFiled: January 31, 2011Publication date: October 24, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Eiji Iwasaki
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Patent number: 7272924Abstract: A catalyst (22) suitable for reduction of the NOx in an exhaust gas by ammonia in the presence of excess oxygen is arranged in the exhaust passage (18, 21) of an internal combustion engine. An aqueous urea solution is fed through a flow control valve (33) to the inside of the exhaust passage (21) upstream of the catalyst (22). When the temperature of the catalyst (22) is low, a large amount of the aqueous urea solution is fed to make the urea contained in the aqueous urea solution be stored in the catalyst (22). When the engine is accelerated and the temperature of the catalyst (22) rises, ammonia is released at a little at a time from the inside of the catalyst (22) and the NOx in the exhaust gas is reduced by the released ammonia.Type: GrantFiled: June 2, 2005Date of Patent: September 25, 2007Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazuhiro Itoh, Toshiaki Tanaka, Eiji Iwasaki, Shinya Hirota
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Patent number: 7245284Abstract: The present invention provides an LCD panel driving apparatus capable of inexpensively and precisely performing DC-free AC driving of an LCD panel, as well as an LCD apparatus to be driven by such driving apparatus. The LCD panel driving apparatus of the present invention comprises a reference voltage generating unit provided with a serial unit including a plurality of resistors connected in series, a first switch for supplying a first potential in a first mode and a second potential in a second mode to a terminal of the serial unit and a second switch for supplying the second potential in the first mode and the first potential in the second mode to the other terminal of the serial unit for outputting voltages from connection points between the plurality of resistors; and a driving unit for selectively outputting one of the plurality of voltages according to a value of image data for applying the voltage to a terminal of a pixel of an LCD panel.Type: GrantFiled: April 22, 2004Date of Patent: July 17, 2007Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Eiji Iwasaki
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Patent number: 7086223Abstract: A catalyst (22) suitable for reduction of the NOx in an exhaust gas by ammonia in the presence of excess oxygen is arranged in the exhaust passage (18, 21) of an internal combustion engine. An aqueous urea solution is fed through a flow control valve (33) to the inside of the exhaust passage (21) upstream of the catalyst (22). When the temperature of the catalyst (22) is low, a large amount of the aqueous urea solution is fed to make the urea contained in the aqueous urea solution be stored in the catalyst (22). When the engine is accelerated and the temperature of the catalyst (22) rises, ammonia is released at a little at a time from the inside of the catalyst (22) and the NOx in the exhaust gas is reduced by the released ammonia.Type: GrantFiled: June 2, 2005Date of Patent: August 8, 2006Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazuhiro Itoh, Toshiaki Tanaka, Eiji Iwasaki, Shinya Hirota
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Patent number: 7086222Abstract: A catalyst (22) suitable for reduction of the NOx in an exhaust gas by ammonia in the presence of excess oxygen is arranged in the exhaust passage (18, 21) of an internal combustion engine. An aqueous urea solution is fed through a flow control valve (33) to the inside of the exhaust passage (21) upstream of the catalyst (22). When the temperature of the catalyst (22) is low, a large amount of the aqueous urea solution is fed to make the urea contained in the aqueous urea solution be stored in the catalyst (22). When the engine is accelerated and the temperature of the catalyst (22) rises, ammonia is released at a little at a time from the inside of the catalyst (22) and the NOx in the exhaust gas is reduced by the released ammonia.Type: GrantFiled: June 2, 2005Date of Patent: August 8, 2006Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazuhiro Itoh, Toshiaki Tanaka, Eiji Iwasaki, Shinya Hirota
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Publication number: 20050262829Abstract: A catalyst (22) suitable for reduction of the NOx in an exhaust gas by ammonia in the presence of excess oxygen is arranged in the exhaust passage (18, 21) of an internal combustion engine. An aqueous urea solution is fed through a flow control valve (33) to the inside of the exhaust passage (21) upstream of the catalyst (22). When the temperature of the catalyst (22) is low, a large amount of the aqueous urea solution is fed to make the urea contained in the aqueous urea solution be stored in the catalyst (22). When the engine is accelerated and the temperature of the catalyst (22) rises, ammonia is released at a little at a time from the inside of the catalyst (22) and the NOx in the exhaust gas is reduced by the released ammonia.Type: ApplicationFiled: June 2, 2005Publication date: December 1, 2005Inventors: Kazuhiro Itoh, Toshiaki Tanaka, Eiji Iwasaki, Shinya Hirota
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Publication number: 20050262832Abstract: A catalyst (22) suitable for reduction of the NOx in an exhaust gas by ammonia in the presence of excess oxygen is arranged in the exhaust passage (18, 21) of an internal combustion engine. An aqueous urea solution is fed through a flow control valve (33) to the inside of the exhaust passage (21) upstream of the catalyst (22). When the temperature of the catalyst (22) is low, a large amount of the aqueous urea solution is fed to make the urea contained in the aqueous urea solution be stored in the catalyst (22). When the engine is accelerated and the temperature of the catalyst (22) rises, ammonia is released at a little at a time from the inside of the catalyst (22) and the NOx in the exhaust gas is reduced by the released ammonia.Type: ApplicationFiled: June 2, 2005Publication date: December 1, 2005Inventors: Kazuhiro Itoh, Toshiaki Tanaka, Eiji Iwasaki, Shinya Hirota
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Patent number: 6959540Abstract: A catalyst (22) suitable for reduction of the NOx in an exhaust gas by ammonia in the presence of excess oxygen is arranged in the exhaust passage (18, 21) of an internal combustion engine. An aqueous urea solution is fed through a flow control valve (33) to the inside of the exhaust passage (21) upstream of the catalyst (22). When the temperature of the catalyst (22) is low, a large amount of the aqueous urea solution is fed to make the urea contained in the aqueous urea solution be stored in the catalyst (22). When the engine is accelerated and the temperature of the catalyst (22) rises, ammonia is released at a little at a time from the inside of the catalyst (22) and the NOx in the exhaust gas is reduced by the released ammonia.Type: GrantFiled: September 20, 2004Date of Patent: November 1, 2005Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazuhiro Itoh, Toshiaki Tanaka, Eiji Iwasaki, Shinya Hirota
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Publication number: 20050217248Abstract: A catalyst (22) suitable for reduction of the NOx in an exhaust gas by ammonia in the presence of excess oxygen is arranged in the exhaust passage (18, 21) of an internal combustion engine. An aqueous urea solution is fed through a flow control valve (33) to the inside of the exhaust passage (21) upstream of the catalyst (22). When the temperature of the catalyst (22) is low, a large amount of the aqueous urea solution is fed to make the urea contained in the aqueous urea solution be stored in the catalyst (22). When the engine is accelerated and the temperature of the catalyst (22) rises, ammonia is released at a little at a time from the inside of the catalyst (22) and the NOx in the exhaust gas is reduced by the released ammonia.Type: ApplicationFiled: June 2, 2005Publication date: October 6, 2005Inventors: Kazuhiro Itoh, Toshiaki Tanaka, Eiji Iwasaki, Shinya Hirota
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Publication number: 20050217249Abstract: A catalyst (22) suitable for reduction of the NOxin an exhaust gas by ammonia in the presence of excess oxygen is arranged in the exhaust passage (18, 21) of an internal combustion engine. An aqueous urea solution is fed through a flow control valve (33) to the inside of the exhaust passage (21) upstream of the catalyst (22). When the temperature of the catalyst (22) is low, a large amount of the aqueous urea solution is fed to make the urea contained in the aqueous urea solution be stored in the catalyst (22). When the engine is accelerated and the temperature of the catalyst (22) rises, ammonia is released at a little at a time from the inside of the catalyst (22) and the NOx in the exhaust gas is reduced by the released ammonia.Type: ApplicationFiled: June 2, 2005Publication date: October 6, 2005Inventors: Kazuhiro Itoh, Toshiaki Tanaka, Eiji Iwasaki, Shinya Hirota
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Publication number: 20050204729Abstract: A catalyst (22) suitable for reduction of the NOx in an exhaust gas by ammonia in the presence of excess oxygen is arranged in the exhaust passage (18, 21) of an internal combustion engine. An aqueous urea solution is fed through a flow control valve (33) to the inside of the exhaust passage (21) upstream of the catalyst (22). When the temperature of the catalyst (22) is low, a large amount of the aqueous urea solution is fed to make the urea contained in the aqueous urea solution be stored in the catalyst (22). When the engine is accelerated and the temperature of the catalyst (22) rises, ammonia is released at a little at a time from the inside of the catalyst (22) and the NOx in the exhaust gas is reduced by the released ammonia.Type: ApplicationFiled: June 2, 2005Publication date: September 22, 2005Inventors: Kazuhiro Itoh, Toshiaki Tanaka, Eiji Iwasaki, Shinya Hirota
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Publication number: 20050034450Abstract: A catalyst (22) suitable for reduction of the NOx in an exhaust gas by ammonia in the presence of excess oxygen is arranged in the exhaust passage (18, 21) of an internal combustion engine. An aqueous urea solution is fed through a flow control valve (33) to the inside of the exhaust passage (21) upstream of the catalyst (22). When the temperature of the catalyst (22) is low, a large amount of the aqueous urea solution is fed to make the urea contained in the aqueous urea solution be stored in the catalyst (22). When the engine is accelerated and the temperature of the catalyst (22) rises, ammonia is released at a little at a time from the inside of the catalyst (22) and the NOx in the exhaust gas is reduced by the released ammonia.Type: ApplicationFiled: September 20, 2004Publication date: February 17, 2005Inventors: Kazuhiro Itoh, Toshiaki Tanaka, Eiji Iwasaki, Shinya Hirota
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Publication number: 20040212574Abstract: The present invention provides an LCD panel driving apparatus capable of inexpensively and precisely performing DC-free AC driving of an LCD panel, as well as an LCD apparatus to be driven by such driving apparatus. The LCD panel driving apparatus of the present invention comprises a reference voltage generating unit provided with a serial unit including a plurality of resistors connected in series, a first switch for supplying a first potential in a first mode and a second potential in a second mode to a terminal of the serial unit and a second switch for supplying the second potential in the first mode and the first potential in the second mode to the other terminal of the serial unit for outputting voltages from connection points between the plurality of resistors; and a driving unit for selectively outputting one of the plurality of voltages according to a value of image data for applying the voltage to a terminal of a pixel of an LCD panel.Type: ApplicationFiled: April 22, 2004Publication date: October 28, 2004Applicant: Matsushita Electric Industrial Co., Ltd.Inventor: Eiji Iwasaki
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Patent number: 6748113Abstract: A block boundary where blocking artifact occurs or a lock where ringing artifact occurs is definitely detected. The noise detecting method includes the steps of: extracting coding information, including orthogonal transformation coefficients and a motion vector of each of multiple blocks of an image, from a bitstream that has been encoded through motion compensation of the image, orthogonal transformation and quantization, where the orthogonal transformation is performed on each said block; obtaining a reference area of each said block from a reference frame using the motion vector of the block; and detecting coding noise to be eliminated according to frequency component distributions of the orthogonal transformation coefficients of each said block and another one of the blocks within the reference frame overlapping the reference area of the block.Type: GrantFiled: August 25, 2000Date of Patent: June 8, 2004Assignee: Matsushita Electric Insdustrial Co., Ltd.Inventors: Satoshi Kondo, Eiji Iwasaki, Hiroshi Taniuchi, Hideya Takahashi
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Patent number: 6746810Abstract: An image formation method which remarkably extends developer life while providing size reduction and high speed coloring. Also, a replenishing toner and a method of producing the same, and a toner cartridge. In the image formation method, conducting image formation by an image formation apparatus having a plurality of xerography units, the developer apparatus of at least one xerography unit has a developer recovering mechanism appropriately replenishing a replenishing toner composed of a toner and a carrier into the developer apparatus and recovering an excess portion of a developer from the equipment. The above-mentioned replenishing toner has a carrier content in the range of 5 to 40% by weight, the above-mentioned carrier is a carrier coated with a resin having a specific composition, and/or the above-mentioned toner is in a specific shape. The replenishing toner may be produced using the above-mentioned recovered developer.Type: GrantFiled: March 26, 2002Date of Patent: June 8, 2004Assignee: Fuji Xerox Co., Ltd.Inventors: Chiaki Suzuki, Masahiro Takagi, Atsuhiko Eguchi, Satoshi Inoue, Sakon Takahashi, Masahiro Uchida, Rieko Kataoka, Hiroyuki Fukuda, Fusako Kiyono, Eiji Iwasaki
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Publication number: 20030148203Abstract: An image formation method which remarkably extends developer life while providing size reduction and high speed coloring. Also, a replenishing toner and a method of producing the same, and a toner cartridge. In the image formation method, conducting image formation by an image formation apparatus having a plurality of xerography units, the developer apparatus of at least one xerography unit has a developer recovering mechanism appropriately replenishing a replenishing toner composed of a toner and a carrier into the developer apparatus and recovering an excess portion of a developer from the equipment. The above-mentioned replenishing toner has a carrier content in the range of 5 to 40% by weight, the above-mentioned carrier is a carrier coated with a resin having a specific composition, and/or the above-mentioned toner is in a specific shape. The replenishing toner may be produced using the above-mentioned recovered developer.Type: ApplicationFiled: March 26, 2002Publication date: August 7, 2003Applicant: FUJI XEROX CO., LTD.Inventors: Chiaki Suzuki, Masahiro Takagi, Atsuhiko Eguchi, Satoshi Inoue, Sakon Takahashi, Masahiro Uchida, Rieko Kataoka, Hiroyuki Fukuda, Fusako Kiyono, Eiji Iwasaki
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Patent number: 6233927Abstract: According to the present invention, there is provided an exhaust gas purification device, comprising a NOx absorbent arranged in an exhaust passage of an engine for absorbing NOx therein when an air-fuel ratio of an exhaust gas flowing into the NOx absorbent is lean, the NOx absorbent discharging NOx absorbed therein when a concentration of the oxygen in the exhaust gas flowing into the NOx absorbent decreases, a trapping element arranged in the exhaust passage upstream of the NOx absorbent for trapping particulates, a processing element for processing the particulates trapped in the trapping element to regenerate the trapping element, and a preventing element for preventing the exhaust gas from flowing into the NOx absorbent from the trapping element when the trapping element is regenerated.Type: GrantFiled: July 27, 1999Date of Patent: May 22, 2001Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinya Hirota, Toshiaki Tanaka, Nobumoto Ohashi, Kazuhiro Itoh, Eiji Iwasaki, Kouji Yoshizaki
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Patent number: 6192675Abstract: In an exhaust gas purification device, a catalytic converter containing selective reduction catalysts is disposed in an exhaust gas passage of an internal combustion engine capable of being operated at a lean air-fuel ratio. The catalytic converter includes a plurality of the selective reduction catalysts disposed in series in the casing of the catalytic converter. Bypass passages which supply the exhaust gas to downstream selective reduction catalysts in the casing by bypassing the upstream catalysts are provided. When a reducing agent is supplied to the exhaust gas upstream of the converter, a part of the supplied reducing agent directly reaches the downstream selective reduction catalyst through the bypass passages without being oxidized by the upstream selective reduction catalysts. Therefore, the NOx purifying abilities of the downstream catalysts are improved and the formation of sulfates on the downstream catalysts is suppressed.Type: GrantFiled: November 2, 1998Date of Patent: February 27, 2001Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinya Hirota, Toshiaki Tanaka, Kouji Yoshizaki, Nobumoto Ohashi, Eiji Iwasaki, Kazuhiro Itoh
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Patent number: 6101999Abstract: A compression ignition type engine, wherein a first combustion where the amount of the recirculated exhaust gas supplied to the combustion chamber is larger than the amount of recirculated exhaust gas where the amount of production of soot peaks and almost no soot is produced and a second combustion where the amount of recirculated exhaust gas supplied to the combustion chamber is smaller than the amount of recirculated exhaust gas where the amount of production of soot peaks are selectively switched between and wherein the air-fuel ratio is temporarily made rich immediately before switching from the first combustion to the second combustion or immediately after switching from the second combustion to the first combustion.Type: GrantFiled: March 26, 1999Date of Patent: August 15, 2000Assignee: Toyota Jidosha Kabushiki KaishaInventors: Nobumoto Ohashi, Toshiaki Tanaka, Eiji Iwasaki, Shinya Hirota, Kouji Yoshizaki, Kazuhiro Itoh