Patents by Inventor Shigeo Yamamoto

Shigeo Yamamoto 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).

  • Publication number: 20200377644
    Abstract: An object of the present invention is to provide a polyisocyanurate foam having excellent flame retardancy and a heat insulator and building material comprising the same. A flame retardant polyisocyanurate foam produced by curing a mixture comprising a polyol (A), a surfactant (B), a catalyst (C), a blowing agent (D), a polyisocyanate (E) and a flame retardant (F), wherein the catalyst (C) comprises a trimerization catalyst; the water content in the blowing agent (D) is less than 0.
    Type: Application
    Filed: December 14, 2018
    Publication date: December 3, 2020
    Inventors: Yuudai Kashiwamoto, Shigeo Yamamoto
  • Patent number: 9411047
    Abstract: A searchlight sonar is installed on a ship (11) and searches under water around the ship (11) while changing the transmitting direction of an ultrasonic beam (TB) at a predetermined split rotation (Mn) in the circumferential direction around the ship (11). The split rotation (Mn) is set to increase as the depression angle of the transmitting direction of the ultrasonic beam (TB) is increased.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: August 9, 2016
    Assignee: HONDA ELECTRONICS CO., LTD.
    Inventors: Hiroaki Kokubo, Shigeo Yamamoto
  • Publication number: 20150331101
    Abstract: A searchlight sonar is installed on a ship (11) and searches under water around the ship (11) while changing the transmitting direction of an ultrasonic beam (TB) at a predetermined split rotation (Mn) in the circumferential direction around the ship (11). The split rotation (Mn) is set to increase as the depression angle of the transmitting direction of the ultrasonic beam (TB) is increased.
    Type: Application
    Filed: December 4, 2013
    Publication date: November 19, 2015
    Inventors: Hiroaki Kokubo, Shigeo Yamamoto
  • Publication number: 20150020760
    Abstract: A four-cycle engine has an engine block having a cylindrical bore and an enclosed oil reservoir. Lubrication oil is inhaled from the oil reservoir and splashed to lubricate inner parts of the engine. The engine is provided with a cylinder head assembly having a pair of overhead intake and exhaust valves. Reciprocating intermediate lifters are provided between push rod and cam flowers to actuate the valve train. A push rod chamber communicated with the valve chamber is partitioned from the cam chamber and flowing of excess oil from the cam chamber into the valve chamber is prevented. Length of valve train push is shortened and it makes design of high speed engine properly.
    Type: Application
    Filed: October 9, 2014
    Publication date: January 22, 2015
    Inventors: Katsumi KURIHARA, Shigeo YAMAMOTO
  • Patent number: 8831803
    Abstract: A hybrid vehicle is configured to be capable of traveling with fuel and electric power serving as energy sources. A charger receives electric power from an external power supply connected to a charging port to charge a power storage device. An ECU calculates a distance traveled per unit amount of electric power supplied from the external power supply by the charger and a distance traveled per unit amount of fuel consumed by an engine. A notification unit notifies a user of each distance traveled, as calculated by the ECU.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: September 9, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Shigeo Yamamoto
  • Publication number: 20140096738
    Abstract: An engine lubrication method is provided. The four-cycle engine has an engine block having a cylindrical bore and an enclosed oil reservoir. A crankshaft is mounted in the engine block. An oil pump driven by the cam gear, brings the oil from the oil reservoir and the valve chamber. The engine is provided with a cylinder head assembly having a pair of overhead intake and exhaust valves. A circular arc wall surrounds the web of the crankshaft at a slight distance from the web. The crankshaft web causes the oil to fly to lubricate engine parts and the oil, returns into the oil reservoir by a check valve. Flowing of oil in to the combustion chamber when the engine is oriented to incline is prevented by oil recesses and long pipes. Another lubrication and breathing system without pump is presented, wherein construction except pump is basically followed.
    Type: Application
    Filed: December 11, 2013
    Publication date: April 10, 2014
    Applicant: ETG Limited
    Inventors: Katsumi KURIHARA, Shigeo YAMAMOTO
  • Patent number: 8627809
    Abstract: An engine lubrication method is provided. The four-cycle engine has an engine block having a cylindrical bore and an enclosed oil reservoir. A crankshaft is mounted in the engine block. An oil pump driven by the cam gear, brings the oil from the oil reservoir and the valve chamber. The engine is provided with a cylinder head assembly having a pair of overhead intake and exhaust valves. A circular arc wall surrounds the web of the crankshaft at a slight distance from the web. The crankshaft web causes the oil to fly to lubricate engine parts and the oil, returns into the oil reservoir by a check valve. Flowing of oil in to the combustion chamber when the engine is oriented to incline is prevented by oil recesses and long pipes. Another lubrication and breathing system without pump is presented, wherein construction except pump is basically followed.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: January 14, 2014
    Assignee: ETG Limited
    Inventors: Katsumi Kurihara, Shigeo Yamamoto
  • Patent number: 8448624
    Abstract: A direct injection internal combustion engine employs a spray guided combustion method, wherein a fuel spray injected from a fuel injection valve is collected at an electrode section of a spark plug so that satisfactorily high combustion performance may be achieved even with a small amount of injected fuel. The engine includes spray control posts 30 arranged on both sides of the spark plug 5, for guiding the fuel injected from the fuel injection valve 4 to be directed toward the electrode section 10 of the spark plug 5.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: May 28, 2013
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Dai Tanaka, Koji Hata, Kazuyoshi Nakane, Kimihiko Sato, Shigeo Yamamoto
  • Publication number: 20130074802
    Abstract: An engine lubrication method is provided. The four-cycle engine has an engine block having a cylindrical bore and an enclosed oil reservoir. A crankshaft is mounted in the engine block. An oil pump driven by the cam gear, brings the oil from the oil reservoir and the valve chamber. The engine is provided with a cylinder head assembly having a pair of overhead intake and exhaust valves. A circular arc wall surrounds the web of the crankshaft at a slight distance from the web. The crankshaft web causes the oil to fly to lubricate engine parts and the oil, returns into the oil reservoir by a check valve. Flowing of oil in to the combustion chamber when the engine is oriented to incline is prevented by oil recesses and long pipes. Another lubrication and breathing system without pump is presented, wherein construction except pump is basically followed.
    Type: Application
    Filed: May 7, 2012
    Publication date: March 28, 2013
    Applicant: ETG Limited
    Inventors: Katsumi KURIHARA, Shigeo YAMAMOTO
  • Publication number: 20130074792
    Abstract: A four-cycle engine has a lightweight aluminum alloy engine block having a cylindrical bore and an enclosed oil reservoir formed therein. A crankshaft is rotatably mounted in the engine block for rotation about a crankshaft axis. A piston reciprocates within the bore and is connected to the crankshaft by a connecting rod. An oil pump driven by the cam gear, which mates with crank gear that is driven by crank shaft, inhales the oil from the oil reservoir and the valve chamber to splash lubricate into the cylinder bore. The engine is provided with a cylinder head assembly defining a compact combustion chamber having a pair of overhead intake and exhaust ports and cooperating intake and exhaust valves.
    Type: Application
    Filed: September 22, 2011
    Publication date: March 28, 2013
    Applicant: ETG Limited
    Inventors: Katsumi Kurihara, Shigeo Yamamoto
  • Patent number: 8281758
    Abstract: A four-cycle engine with an enclosed oil reservoir for mounting on a power tool is provided. An oil pump driven by a camshaft, which mates by a cam gear with crank gear that is driven by a crank shaft, inhales the oil from the oil reservoir to lubricate the engine parts. A circular arc wall surrounds around web of the crankshaft with a slight distance from the web. A scroll-shaped wall has gradually increased distance from the circular arc wall to the direction of rotation of the web and has partial overlap with the circular arc wall. In case of stock of engine oriented power take off side up or down, oil is prevented to flow from oil reservoir to combustion chamber by a weir which is provided between the circular wall and the scrolled wall. The check valve splashes breathing missed oil from the crankshaft to the breather room and causes the oil to supply lubricant to lubricate the engine parts.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: October 9, 2012
    Assignee: ETG Limited
    Inventors: Katsumi Kurihara, Shigeo Yamamoto, Bin Guo
  • Patent number: 8124048
    Abstract: Provided is a process for producing a high-purity ?-alumina in which an Si content, an Fe content, a Ca content, and an Na content are simultaneously removed. The high-purity ?-alumina is produced by burning aluminum hydroxide having an Na content of 0.11 mass % or less, an Fe content of 6 ppm or less, a Ca content of 1.5 ppm or less, and an Si content of 10 ppm or less as impurities in terms of alumina respectively, and having an average particle diameter of 55 ?m or less at a burning temperature of 1,100 to 1,500° C. by using a burning vessel containing Al2O3 in a range of 85 to 93 wt % and SiO2 in a range of 7 to 14 wt % and subjecting the obtained ?-alumina to wash treatment.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: February 28, 2012
    Assignee: Nippon Light Metal Company, Ltd.
    Inventors: Jun Mizuno, Toshihiro Matsuba, Shigeo Yamamoto, Takashi Yamada
  • Publication number: 20110010030
    Abstract: A hybrid vehicle is configured to be capable of traveling with fuel and electric power serving as energy sources. A charger receives electric power from an external power supply connected to a charging port to charge a power storage device. An ECU calculates a distance traveled per unit amount of electric power supplied from the external power supply by the charger and a distance traveled per unit amount of fuel consumed by an engine. A notification unit notifies a user of each distance traveled, as calculated by the ECU.
    Type: Application
    Filed: August 13, 2008
    Publication date: January 13, 2011
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shigeo Yamamoto
  • Publication number: 20100262566
    Abstract: In order to accurately calculate a price for electric power for a vehicle to travel, to be spent for upgrade and maintenance of the social infrastructure necessary for vehicles to travel, an ECU determines whether battery-charging electric energy data is stored in an internal memory (S256), calculates, when the battery-charging electric energy data is stored (YES in S256), an extra price which is separate from a basic usage price for the electric power and imposed on a user having used the electric power for traveling the vehicle, based on the battery-charging electric power data (S258), corrects the extra price based on information about a plug-in vehicle (information about whether the electric vehicle is hybrid vehicle for example) (S260), and generates price data in which the price is stratified into a basic usage price for electric power and an extra price (S262).
    Type: Application
    Filed: December 11, 2008
    Publication date: October 14, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Shigeo Yamamoto
  • Patent number: 7812509
    Abstract: A spark plug (10) includes a plug body (51), a center electrode (52), a ground electrode (53) and injection control side poles (61, 62, 63). The ground electrode has an end portion (53a) opposing the end of the center electrode in a direction indicated by arrow A parallel to the axis of the plug body. A tip (53b) of the ground electrode and a tip (60a) of the injection control side poles (61, 62, 63) are positioned in substantially the same plane (71) perpendicular to the axis (C). The ground electrode (53) and the injection control side poles (61, 62, 63) are arranged at substantially regular intervals around the center electrode (52).
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: October 12, 2010
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Dai Tanaka, Keisuke Nagakura, Shigeo Yamamoto
  • Patent number: 7690348
    Abstract: In the top face of a piston (6), there is formed a cavity (30) having a bottom surface (32) which slopes downward toward an exhaust side and which includes a raised part (32a) extending from near the center of the bottom surface to an intake-side wall surface. The cavity guides fuel spray (15) which has been injected by an injector (12) and passed by an electrode part (14a) of a spark plug (14), to arrive near the electrode part of the spark plug again in the form of an air-fuel mixture (15a).
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: April 6, 2010
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Dai Tanaka, Keisuke Nagakura, Koji Hata, Joji Matsubara, Shigeo Yamamoto
  • Publication number: 20100021374
    Abstract: Provided is a process for producing a high-purity ?-alumina in which an Si content, an Fe content, a Ca content, and an Na content are simultaneously removed. The high-purity ?-alumina is produced by burning aluminum hydroxide having an Na content of 0.11 mass % or less, an Fe content of 6 ppm or less, a Ca content of 1.5 ppm or less, and an Si content of 10 ppm or less as impurities in terms of alumina respectively, and having an average particle diameter of 55 ?m or less at a burning temperature of 1,100 to 1,500° C. by using a burning vessel containing Al2O3 in a range of 85 to 93 wt % and SiO2 in a range of 7 to l4 wt % and subjecting the obtained ?-alumina to wash treatment.
    Type: Application
    Filed: December 4, 2007
    Publication date: January 28, 2010
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Jun Mizuno, Toshihiro Matsuba, Shigeo Yamamoto, Takashi Yamada
  • Publication number: 20100012083
    Abstract: An object of the invention is to provide a direct injection internal combustion engine employing a spray guided combustion method, wherein a fuel spray injected from a fuel injection valve is collected at an electrode section of a spark plug so that satisfactorily high combustion performance may be achieved even with a small amount of injected fuel. The engine according to the invention includes spray control posts 30 arranged on both sides of the spark plug 5, for guiding the fuel injected from the fuel injection valve 4 to be directed toward the electrode section 10 of the spark plug 5.
    Type: Application
    Filed: March 13, 2008
    Publication date: January 21, 2010
    Inventors: Dai Tanaka, Koji Hata, Kazuyoshi Nakane, Kimihiko Sato, Shigeo Yamamoto
  • Patent number: 7624714
    Abstract: The present invention is directed to a four-cycle engine including a lightweight aluminum alloy engine block having a cylindrical bore and an oil reservoir formed therein. A crankshaft is rotatably mounted in the engine block for rotation about a crankshaft axis. A piston reciprocates within the bore and is connected to the crankshaft by a connecting rod. An oil pump driven by the cam gear, which mates with a crank gear that is driven by a crank shaft, inhales oil from the oil reservoir and the valve chamber to splash lubricate into the cylinder bore. The engine is provided with a cylinder head assembly defining a compact combustion chamber having a pair of overhead intake and exhaust ports and cooperating intake and exhaust valves and a circular arc wall which surrounds around webs of the crankshaft so that each crankshaft web splashes and causes the oil to fly to lubricate engine parts.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: December 1, 2009
    Assignee: ETG Limited
    Inventors: Katsumi Kurihara, Bin Guo, Shigeo Yamamoto
  • Publication number: 20090283067
    Abstract: An engine lubrication method is provided. The four-cycle engine has a lightweight aluminum alloy engine block having a cylindrical bore and an enclosed oil reservoir formed therein. A crankshaft is rotatably mounted in the engine block for rotation about a crankshaft axis. A piston reciprocates within the bore and is connected to the crankshaft by a connecting rod. A cam shaft is rotatably mounted in the crank shaft chamber for rotation about a cam shaft axis, parallel to the crank shaft axis. An oil pump driven by the cam shaft, which mates by cam gear with crank gear that is driven by crank shaft, inhales the oil from the oil reservoir to splash lubricate into the crank shaft chamber. The engine is provided with a cylinder head assembly defining a compact combustion chamber having a pair of overhead intake and exhaust ports and cooperating intake and exhaust valves. A lightweight, high-powered engine is thereby provided having relatively low HC and CO emissions.
    Type: Application
    Filed: May 21, 2009
    Publication date: November 19, 2009
    Inventors: Katsumi Kurihara, Shigeo Yamamoto, Bin Guo