Patents by Inventor Haruo Watanabe
Haruo Watanabe 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: 4584003Abstract: An apparatus for treating a dust-containing gas which comprises at least one vertically arranged filtration tube made of a solid porous material, a first filration tube supporter provided at the outer and upper part of the at least one filtration tube, a second filtration tube supporter provided at the outer and lower part of the at least one filtration tube, sealing means for dust respectively provided at a connecting part between the first filtration tube supporter and the at least one filtration tube and at a connecting part between the second filtration tube supporter and at least one filtration tube, an upper case with a dust-containing gas inlet which is placed above the first filtration tube supporter, a middle case with at least one clean gas outlet for supporting the first and second filtration tube supporters and a lower case with a dust discharging port which is placed below the second filtration tube supporter.Type: GrantFiled: May 2, 1984Date of Patent: April 22, 1986Assignee: Asahi Glass Company Ltd.Inventors: Noriyuki Oda, Haruo Watanabe, Tomohiro Morishita
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Patent number: 4583174Abstract: An electronically controlled fuel injection apparatus for internal combustion engine which increases the rate of fuel injection when the engine speed drops by a rate more than a predetermined rate under a condition that the aperture of the throttle valve is minimum, that is, under an idling condition. In order to increase the rate of fuel injection, the width of the basic fuel injection pulse is enlarged which is given according to the engine speed and the intake air flow rate, or, in addition to the basic fuel injection pulse, a predetermined rate of fuel is injected asynchronously, i.e., independently from the crank angle of the engine.Type: GrantFiled: August 4, 1983Date of Patent: April 15, 1986Assignee: Toyota Jidosha Kabushiki KaishaInventor: Haruo Watanabe
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Patent number: 4573443Abstract: An apparatus for controlling fuel injection in a multicylinder internal combustion engine, wherein fuel injectors for each cylinder are simultaneously operated synchronous with crank angles. The amount of injection is controlled by signals from an air flow meter. The apparatus includes a system operating, nonsynchronous with crank angles, the injectors when the engine is accelerated. The amount of nonsynchronous fuel injection is controlled in accordance with the position of the nonsynchronous injection (i.e., occurrence of acceleration) between adjacent synchronous injections.Type: GrantFiled: May 16, 1985Date of Patent: March 4, 1986Assignee: Toyota Jidosha Kabushiki KaishaInventors: Haruo Watanabe, Kazuo Nakano, Akito Ohnishi
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Patent number: 4544129Abstract: A direct-acting servo valve wherein a spool is directly driven by a force motor including a coiled first bobbin located in a first magnetic circuit composed of a first yoke and a first magnet mounted on the yoke includes a second magnetic circuit composed of a second yoke and a second magnet located at one end of the spool, and a third magnetic circuit composed of third magnets and a magnetic member located at the other end of the spool. The second magnetic circuit serves as means for detecting the velocity of the spool, and the third magnetic circuit serves as means for detecting the displacement of the spool.Type: GrantFiled: December 12, 1983Date of Patent: October 1, 1985Assignee: Hitachi, Ltd.Inventors: Ken Ichiryu, Haruo Watanabe, Takashi Yamaguchi
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Patent number: 4542084Abstract: A method for forming a color image includes a step of spraying three kinds of photoconductive toners with a sensitization wavelength band different from its absorption wavelength band, a step of electrically charging these different toners, a step of exposing these sprayed and electrically charged photoconductive toners to light for selectively removing electrostatic charges, and a step of removing the toners freed of electrostatic charges from the substrate. The magenta color photoconductive toners sensitive to red light, yellow color photoconductive toners sensitive to green light, and the cyan color photoconductive toners sensitive to blue light, are used as aforementioned three kinds of photoconductive colors.Type: GrantFiled: July 25, 1984Date of Patent: September 17, 1985Assignee: Sony CorporationInventors: Haruo Watanabe, Junetsu Seto, Kiyosuke Suzuki, Toshiaki Fukuma
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Patent number: 4529362Abstract: A servo pump for use in a hydraulic system. The servo pump is constituted by a variable displacement type hydraulic pump adapted to be driven by a high-speed motor and to hydraulically drive an actuator. The motor and the pump are housed in a common casing. The motor shaft and the pump shaft are integrated to form a common rotary shaft which is supported rotatably at both its ends by end bearings and at its intermediate portion by an intermediate bearing.Type: GrantFiled: February 1, 1984Date of Patent: July 16, 1985Assignee: Hitachi, Ltd.Inventors: Ken Ichiryu, Haruo Watanabe, Tadahiko Nogami
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Patent number: 4478193Abstract: An engine comprising a fuel injector, an oxygen concentration detector and an electronic control unit. In the electronic control unit, a basic fuel injection time period is calculated, and a correction valve of the basic fuel injection time period is calculated on the basis of the output signal of the oxygen concentration detector. The electronic control unit comprises a back-up RAM storing the mean value of the correction value therein, and an output outputting a voltage which corresponds to the correction value. A connector device is provided, which comprises a connector body and a cap removably fitted onto the connector body. The connector body comprises a output terminal connected to the output of the electronic control unit, a power input terminal connected to the back-up RAM, and a power supply terminal connected to a battery.Type: GrantFiled: January 25, 1983Date of Patent: October 23, 1984Assignee: Toyota Jidosha Kabushiki KaishaInventor: Haruo Watanabe
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Patent number: 4471743Abstract: An injector is driven in response to a basic injection pulse signal having a pulse width extracted from an engine rotational speed and an intake air flow rate. It is judged that an engine is in normal operation only after the engine has performed predetermined rotations from a moment at which a throttle valve begins to open. During normal operation of the engine, a time period for limiting a pulse width corresponding to an engine rotational speed is selected, and, after this time period has elapsed, a pulse cut signal is generated to interrupt fuel injection of the injector in spite of the presence of the basic injection pulse signal. The basic fuel injection pulse signal is not cut under a transitional condition of the engine.Type: GrantFiled: September 21, 1982Date of Patent: September 18, 1984Assignee: Toyota Jidosha Kabushiki KaishaInventor: Haruo Watanabe
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Patent number: 4470751Abstract: An apparatus for attaching a front loader to a tractor or like vehicle comprises a pair of opposite lift arms removably connectable to the vehicle and pivotally movable upward and downward, a bucket supported by the front ends of the lift arms with pivots and pivotally movable upward and downward, bucket cylinders for pivotally moving the bucket, and a restraining member removably attached to the bucket for preventing the pivotal movement of the bucket relative to the ground. The lift arms as disconnected from the vehicle are moved by the bucket cylinders about the pivots to an attached position relative to the vehicle or to a removed position above the attached position and can be held in either position.Type: GrantFiled: June 2, 1982Date of Patent: September 11, 1984Assignee: Kubota, Ltd.Inventors: Motomu Masuzawa, Haruo Watanabe, Mikio Ishida, Akio Hamada
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Patent number: 4466413Abstract: The present invention relates to a fuel cut system for an electronic control system of an engine. When the deceleration of engine rotation is large during fuel cut, the fuel cut is interrupted at the rotational speed higher than when the deceleration is small, and thereby the engine stop caused by the fuel cut during racing period or the like is prevented.Type: GrantFiled: June 24, 1982Date of Patent: August 21, 1984Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Akito Oonishi, Haruo Watanabe
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Patent number: 4465662Abstract: An oral composition containing tranexamic acid in which carvone is blended in an amount of 0.1 to 5% by weight and l-menthol may preferably be blended in an amount of 0.03 to 10% by weight. Carvone improves the bitterness inherent to the tranexamic acid-containing oral composition. The composition may preferably contain a mixed humectant of sorbitol and glycerin at a weight ratio of 1:9 to 6:4 and a binder, at least 60% by weight of the binder being an alkali metal salt of carboxymethyl cellulose.Type: GrantFiled: April 2, 1981Date of Patent: August 14, 1984Assignee: Lion CorporationInventors: Hiroshi Sato, Haruo Watanabe, Nobuo Suganuma
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Patent number: 4464978Abstract: A servovalve apparatus comprising a servovalve and a force motor operatively connected to a valve element of the servovalve for driving the valve element. The force motor includes an annular magnet, and first and second members cooperating with each other to define therebetween an annular gap concentric with the annular magnet. A cylindrical coil operatively connected to the valve element is disposed in the annular gap in concentric relation therewith and is reciprocated within the annular gap in response to the electric current passing through the coil. First and second cylindrical resilient members thermally connect one and the other axial ends of the cylindrical coil to first and second stoppers, respectively, to transmit the Joule heat generated by the coil to the first and second stoppers.Type: GrantFiled: February 18, 1982Date of Patent: August 14, 1984Assignee: Hitachi, Ltd.Inventors: Ken Ichiryu, Haruo Watanabe, Masami Nemoto
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Patent number: 4428559Abstract: A direct drive type servo motor in which a spool is driven directly by a force motor, the force of the force motor being balanced by the reactional force generated by a resilient member to stabilize the position of the spool to control the flow of working fluid. The resilient member is constituted by a metallic cylindrical member having holes formed in the outer peripheral surface thereof. The holes are arranged such that, when the force is applied to the cylindrical member in the axial direction, the cylindrical member produces an axial reactional force. In consequence, the generation of force component which would act to press the spool against the sleeve is avoided to reduce the friction between the spool and the sleeve to permit a smooth movement of the spool, while allowing the resilient member to have a high spring constant to improve the response characteristic of the servo valve.Type: GrantFiled: May 28, 1981Date of Patent: January 31, 1984Assignee: Hitachi, Ltd.Inventors: Ken Ichiryu, Haruo Watanabe, Ichiro Nakamura, Yoshimichi Akasaka
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Patent number: 4414942Abstract: An idling speed control device of an internal combustion engine comprising a bypass passage which interconnects the intake passage located upstream of the throttle valve to a surge tank which is arranged in the bypass passage located downstream of the throttle valve. A flow control valve is fixed onto the surge tank and actuated by a step motor for controlling the amount of air flowing within the bypass passage to maintain the idling speed of an engine at a predetermined speed.Type: GrantFiled: June 9, 1981Date of Patent: November 15, 1983Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Hiroshi Itoh, Haruo Watanabe
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Patent number: 4404892Abstract: A hydraulic operating apparatus including an actuating cylinder having a piston arranged therein and moved by a fluid under high pressure further includes a control valve having only one metallic seal whether the piston is at its upper or lower positions. The control valve is operative to apply the fluid under high pressure to a pressure receiving surface of the piston on the opposite side of a piston rod to move the piston in a direction in which the piston rod extends from the piston and to discharge the fluid existent on the opposite side of the piston rod from the actuating cylinder to move the piston in a direction opposite the direction in which the piston rod extends from the piston.Type: GrantFiled: December 18, 1980Date of Patent: September 20, 1983Assignee: Hitachi, Ltd.Inventors: Ichiro Nakamura, Mitsuaki Takenoshita, Ken Ichiryu, Yoshimichi Akasaka, Haruo Watanabe
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Patent number: 4397275Abstract: An idling speed control device of an internal combustion engine comprising a bypass passage which interconnects the intake passage located upstream of the throttle valve to the intake passage located downstream of the throttle valve. A flow control valve is arranged in the bypass passage and actuated by a step motor for controlling the amount of air flowing within the bypass passage to maintain the idling speed of an engine at a predetermined speed. A cooling water passage is formed in the valve housing of the flow control valve.Type: GrantFiled: March 2, 1981Date of Patent: August 9, 1983Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Hiroshi Itoh, Haruo Watanabe, Mamoru Kobashi
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Patent number: 4385602Abstract: An idling rotational speed control device wherein, when an engine ignition switch is turned off, an air flow rate control device is driven to a fully closed position or a fully opened position, and the air flow rate control valve is controlled referenced from the fully closed position or the fully opened position as the new reference position. During idling, the flow rate of air taken into an intake manifold is controlled by the intentional opening degree from the reference position of the air flow rate control valve so as to correctly perform control.Type: GrantFiled: July 23, 1981Date of Patent: May 31, 1983Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Hiroshi Itou, Haruo Watanabe, Hidenori Tateno, Mamoru Kobashi
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Patent number: 4330600Abstract: A magnetic recording medium is disclosed in which dispersion characteristics of magnetizable particles in a magnetic paint is improved which results in improved saturation magnetic flux density and squareness ratio. The dispersion characteristics is improved by the treatment of magnetizable particle with a titanium alcoholate compound having at least one group easy to be hydrolyzed and at least one oleophilic group hard to be hydrolyzed in an organic solvent.Type: GrantFiled: October 8, 1980Date of Patent: May 18, 1982Assignee: Sony CorporationInventors: Kouichi Kawasumi, Haruo Watanabe, Junetsu Seto
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Patent number: 4325452Abstract: A work vehicle comprising a stepless hydraulic speed change apparatus, a radiator for cooling hydraulic fluid for the said apparatus, a hydraulic cylinder for actuating a work implement, and a hydraulic pump provided with a suction portion. A return flow path is provided for supplying hydraulic fluid from the radiator to the suction portion of the oil pump.Type: GrantFiled: February 29, 1980Date of Patent: April 20, 1982Assignee: Kubota Ltd.Inventors: Niro Bando, Haruo Watanabe, Junji Miyata
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Patent number: 4323137Abstract: A work vehicle having an oil cooling path through which a working oil within the transmission housing for the hydraulically driven transmission means is circulated to the transmission case through the cooler.There is disposed a bypass adapted to return the working oil directly to the transmission case from said transmission housing without passing through the cooler when the pressure in said transmission housing exceeds a predetermined value.Type: GrantFiled: February 29, 1980Date of Patent: April 6, 1982Assignee: Kubota, Ltd.Inventors: Niro Bando, Junji Miyata, Masatsugu Tone, Haruo Watanabe