Patents by Inventor Mitsuru Nakamura
Mitsuru Nakamura 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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Method for starting an electric brushless rotating machine for driving an internal combustion engine
Patent number: 6774590Abstract: A method of starting an electric brushless rotating machine is provided where a large startup torque is obtained with no use of any rotor position detecting device and the forced commutation can be switched to normal energization easily and smoothly. At the startup stage, any two of three-phase stator windings are energized for initial magnetization (Steps S1 and S2) to hold the magnetic rotor at a position. Then, the windings of the phases are energized in a sequence while gradually increasing the level of the energization (Step S3). During the forced commutation, the magnetic rotor is rotated by a rotating position detecting signal generated from a voltage signal induced on the not-energized windings to drive the output shaft of an engine. Then, the energization is canceled when the number of revolutions in the internal combustion engine determined from the rotating position detecting signal reaches its predetermined level.Type: GrantFiled: October 29, 2002Date of Patent: August 10, 2004Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Toshinori Inagawa, Yoshihiro Iijima, Mitsuru Nakamura, Tsutomu Wakitani -
Patent number: 6706328Abstract: A metal article whose surface is coated with a coating composition composed of (A) a silane coupling agent component, (B) a polymer component having a specific chemical structure, and (C) a wax component provides a chromium-free surface treated metal material with superior corrosion resistance, paintability, fingerprint resistance, and workability.Type: GrantFiled: December 23, 2002Date of Patent: March 16, 2004Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Katsuyuki Kawakami, Mitsuru Nakamura, Takao Ogino
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Patent number: 6703967Abstract: From a transmitter (18) and a transmission antenna (10), a first frequency signal having a fixed frequency is transmitted for a predetermined time or more, a second frequency signal having a certain frequency difference from the first frequency signal is transmitted for a predetermined time or more, and a third frequency signal having a frequency difference twice the frequency distance from the first frequency signal is transmitted for a predetermined time or more. Reflected waves from objects under measurement at the respective transmission frequencies are supplied to a reception antenna (11), a mixer (12), an analog circuit unit (13), an A/D converter (14), an FFT (15) and a signal processing unit (16).Type: GrantFiled: February 27, 2002Date of Patent: March 9, 2004Assignee: Hitachi Ltd.Inventors: Hiroshi Kuroda, Kazuaki Takano, Mitsuru Nakamura
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Publication number: 20040026667Abstract: A hexavalent chromium-free surface treating agent for Sn- or Al-based coated steel sheet, comprising a trivalent chromium compound (A), a water-dispersible silica (B), a lubricity imparting component (C) made of one or more waxes of polyolefin wax, fluorine-containing wax and paraffin wax, and water, a mass ratio on the solid content basis of the water-dispersible silica (B) to the lubricity imparting component (C), (B)/(C), being within a range from 5/95 to 95/5.Type: ApplicationFiled: September 2, 2003Publication date: February 12, 2004Inventors: Teruaki Izaki, Masahiro Fuda, Mitsuru Nakamura, Katsuyuki Kawakami, Kensuke Mizuno
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Patent number: 6684149Abstract: In order to occur a collision warning to prevent the collision in accurate by detecting the preceding vehicle or target, a vehicle lane position estimation device comprising a means for measuring a distance between said host vehicle and said preceding vehicle or a oncoming vehicle, a direction angle from said host vehicle, an angular velocity and a velocity of said host vehicle, a means for calculating lateral and longitudinal distance between said host vehicle and said preceding vehicle or said oncoming vehicle, a means for capturing a front stationary object, a means for obtaining movement of the preceding vehicle or position of the oncoming vehicle, and a means to estimate a lane position of said front stationary object from a relationship of the stationary object being captured and the preceding vehicle being obtained and a positional relationship with the oncoming vehicle.Type: GrantFiled: September 4, 2001Date of Patent: January 27, 2004Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.Inventors: Mitsuru Nakamura, Jie Bai
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Publication number: 20040011428Abstract: A metallic sheet for motor vehicles which is excellent press forming property and chemical layer generation property, and a process for producing the sheet. The treating chemicals apply to a metal surface consists of (A) particles of phosphate of metal selected from Zn, Fe, Mn, Ni, Co, Ca, Mg and Al, the average size of the particles are 3 &mgr;m or smaller, (B) a dispersing agent, and water. It is applied to a metal surface and then dried. Dispersing agent (B) include orthophosphoric acid, polyphosphoric acid, and organic phosphonic acid compounds. (B) also include polymer formed from a monomer represented by the chemical formula(1). Further more, monosaccharides, polysaccharaides or derivatives of vinylacetate may also be used as (B). It is applied to the metal surface so as to form a film in an amount of 0.05 to 3 g/m2 on a dried basis.Type: ApplicationFiled: August 12, 2003Publication date: January 22, 2004Inventors: Mitsuru Nakamura, Yoshihiro Hayashi, Takaomi Nakayama
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Publication number: 20030211249Abstract: A metal article whose surface is coated with a coating composition composed of (A) a silane coupling agent component, (B) a polymer component having a specific chemical structure, and (C) a wax component provides a chromium-free surface treated metal material with superior corrosion resistance, paintability, fingerprint resistance, and workability.Type: ApplicationFiled: December 23, 2002Publication date: November 13, 2003Inventors: Katsuyuki Kawakami, Mitsuru Nakamura, Takao Ogino
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Patent number: 6622079Abstract: A method comprising a first traveling mode in which the traveling environment ahead is recognized and at least one of the engine, the speed change gear, and the brake is controlled on the basis of a signal representing the recognition and a second traveling mode in which at least one of the engine, the speed change gear, and the brake is controlled on the basis of a signal generated by operation of the driver, in which the second traveling mode is selected in an area where vehicle following-up control is difficult.Type: GrantFiled: February 22, 2002Date of Patent: September 16, 2003Assignee: Hitachi, Ltd.Inventors: Toshimichi Minowa, Kozo Nakamura, Hiroshi Takenaga, Yoshinori Endo, Hiroto Morizane, Tokuji Yoshikawa, Mitsuru Nakamura, Ryoichi Komuro
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Method for starting an electric brushless rotating machine for driving an internal combustion engine
Publication number: 20030107348Abstract: A method of starting an electric brushless rotating machine is provided where a large startup torque is obtained with no use of any rotor position detecting device and the forced commutation can be switched to normal energization easily and smoothly. At the startup stage, any two of three-phase stator windings are energized for initial magnetization (Steps S1 and S2) to hold the magnetic rotor at a position. Then, the windings of the phases are energized in a sequence while gradually increasing the level of the energization (Step S3). During the forced commutation, the magnetic rotor is rotated by a rotating position detecting signal generated from a voltage signal induced on the not-energized windings to drive the output shaft of an engine. Then, the energization is canceled when the number of revolutions in the internal combustion engine determined from the rotating position detecting signal reaches its predetermined level.Type: ApplicationFiled: October 29, 2002Publication date: June 12, 2003Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Toshinori Inagawa, Yoshihiro Iijima, Mitsuru Nakamura, Tsutomu Wakitani -
Publication number: 20030107353Abstract: A method of starting an electric brushless rotating machine is provided which enables the rotor to produce a large power of startup torque with no use of any rotor position detectors. At Steps S1 and S2, a first and a second initial magnetization respectively are carried out for shifting the rotor at its free pausing state by forced commutation to a desired location to start the forward rotation at the maximum torque. At Step S3, the energization at single-phase is conducted with the rotor and the stator having a positional relationship for permitting generation of the maximum torque after the forced commutation or the second the initial magnetization. An induced voltage at the not-energized phase is measured by the forced commutation and used for determining the location of the rotor. Step S4 follows where a normal action of the energization is carried out.Type: ApplicationFiled: October 29, 2002Publication date: June 12, 2003Applicant: HONDA GIKEN KOGYO KABUSHIKI KAISHAInventors: Mitsuru Nakamura, Toshinori Inagawa, Yoshihiro Iijima, Tsutomu Wakitani
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Patent number: 6567737Abstract: In order to occur a collision warning to prevent the collision in accurate by detecting the preceding vehicle or target, a vehicle lane position estimation device comprising a means for measuring a distance between said host vehicle and said preceding vehicle or a oncoming vehicle, a direction angle from said host vehicle, an angular velocity and a velocity of said host vehicle, a means for calculating lateral and longitudinal distance between said host vehicle and said preceding vehicle or said oncoming vehicle, a means for capturing a front stationary object, a means for obtaining movement of the preceding vehicle or position of the oncoming vehicle, and a means to estimate a lane position of said front stationary object from a relationship of the stationary object being captured and the preceding vehicle being obtained and a positional relationship with the oncoming vehicle.Type: GrantFiled: November 8, 2001Date of Patent: May 20, 2003Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.Inventors: Mitsuru Nakamura, Jie Bai
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Patent number: 6550462Abstract: In an engine ignition system that includes a rotor that rotates in synchronism with rotation of an engine, an iron core fixedly disposed opposite the outer periphery of the rotor, and a primary coil and a secondary coil that are wound concentrically around the iron core, to reduce the weight of the rotor while allowing the rotational balance of the rotor to be easily adjusted, simplify the arrangement of the rotor itself, and secure an effectively usable space in the region on the inside of the rotor in the radial direction. Permanent magnets are fitted to the iron core having a plurality of legs opposite the outer periphery of the rotor at positions that are spaced in the peripheral direction of the rotor, and an inductor is fixed to the outer periphery of the rotor. The inductor forms a magnetic path for the magnetic flux that is formed by the permanent magnets between pairs of legs.Type: GrantFiled: December 4, 2001Date of Patent: April 22, 2003Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Mitsuru Nakamura, Kazumi Miyashita
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Patent number: 6491883Abstract: A photocatalytic filter having a coating layer formed in a thickness of 5 to 60 &mgr;m on a base material and including 5 to 60% by weight of ultraviolet ray-transmissible particles (such as glass particles or fibers) having a minor axis of 0.2 to 50 &mgr;m, 20 to 80% by weight of photocatalytical particles (TiO2) having an average particle size of 0.001 to 0.02 &mgr;m, 10 to 60% by weight of fine silica particles having an average particle size of 0.002 to 0.2 &mgr;m and optionally 0.2 to 20% by weight of a clay mineral material, preferably a portion of the ultraviolet ray-transmissible particles being exposed to the outside of the coating layer, exhibits a high air-cleaning activity, a high adhesion of the coating layer to the base material and a high durability in the air-cleaning activity.Type: GrantFiled: December 26, 2000Date of Patent: December 10, 2002Assignees: Nihon Parkerizing Co., Ltd., Honda Access Corp.Inventors: Kazuhiko Mori, Mitsuru Nakamura, Hidetaka Umeoka
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Publication number: 20020095255Abstract: A method comprising a first traveling mode in which the traveling environment ahead is recognized and at least one of the engine, the speed change gear, and the brake is controlled on the basis of a signal representing the recognition and a second traveling mode in which at least one of the engine, the speed change gear, and the brake is controlled on the basis of a signal generated by operation of the driver, in which the second traveling mode is selected in an area where vehicle following-up control is difficult.Type: ApplicationFiled: February 22, 2002Publication date: July 18, 2002Applicant: Hitachi, Ltd.Inventors: Toshimichi Minowa, Kozo Nakamura, Hiroshi Takenaga, Yoshinori Endo, Hiroto Morizane, Tokuji Yoshikawa, Mitsuru Nakamura, Ryoichi Komuro
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Patent number: 6420437Abstract: A neutral titanium dioxide colloid sol having a high stability in a neutral range and capable of forming a colorless transparent coating even when dried at room temperature is produced by mixing an acid titanium dioxide sol comprising 50 to 100 parts by weight of titanium dioxide colloidal particles and 5 to 50 parts by weight of a chelating agent for titanium ions with 1 to 50 parts by weight of an alkaline substance comprising at least one of alkali metal compounds and amine compounds, and optionally by adjusting the pH value of the liquid mixture to 5 to 10, or adjusting the pH value of the liquid mixture to 6 to 10, and then applying a deionization treatment to the mixture to thereby charge the titanium dioxide colloidal particles with negative electricity.Type: GrantFiled: July 26, 2000Date of Patent: July 16, 2002Assignee: Nihon Parkerizing Co., Ltd.Inventors: Kazuhiko Mori, Mitsuru Nakamura, Masanobu Tanaka
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Publication number: 20020066429Abstract: In an engine ignition system that includes a rotor that rotates in synchronism with rotation of an engine, an iron core fixedly disposed opposite the outer periphery of the rotor, and a primary coil and a secondary coil that are wound concentrically around the iron core, to reduce the weight of the rotor while allowing the rotational balance of the rotor to be easily adjusted, simplify the arrangement of the rotor itself, and secure an effectively usable space in the region on the inside of the rotor in the radial direction. Permanent magnets are fitted to the iron core having a plurality of legs opposite the outer periphery of the rotor at positions that are spaced in the peripheral direction of the rotor, and an inductor is fixed to the outer periphery of the rotor. The inductor forms a magnetic path for the magnetic flux that is formed by the permanent magnets between pairs of legs.Type: ApplicationFiled: December 4, 2001Publication date: June 6, 2002Inventors: Mitsuru Nakamura, Kazumi Miyashita
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Patent number: 6385529Abstract: A method comprising a first traveling mode in which the traveling environment ahead is recognized and at least one of the engine, the speed change gear, and the brake is controlled on the basis of a signal representing the recognition and a second traveling mode in which at least one of the engine, the speed change gear, and the brake is controlled on the basis of a signal generated by operation of the driver, in which the second traveling mode is selected in an area where vehicle following-up control is difficult.Type: GrantFiled: January 31, 2000Date of Patent: May 7, 2002Assignee: Hitachi, Ltd.Inventors: Toshimichi Minowa, Kozo Nakamura, Hiroshi Takenaga, Yoshinori Endo, Hiroto Morizane, Tokuji Yoshikawa, Mitsuru Nakamura, Ryoichi Komuro
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Patent number: 6360158Abstract: The present invention provides an intelligent cruise control device installed in a host vehicle and used for performing follow-up cruise control to follow up a moving target located in front of the host vehicle by supplying an operating signal to an auto cruise control device which is used for carrying out auto cruise control to adjust the speed of the host vehicle by carrying out an operation indicated by the operating signal generated by the operating part in accordance with an operation type such as acceleration and deceleration specified by the driver so that the host vehicle is running at the adjusted speed.Type: GrantFiled: September 4, 1997Date of Patent: March 19, 2002Assignee: Hitachi, Ltd.Inventors: Kazuhiko Hanawa, Mitsuru Nakamura, Kazuo Matsuura, Satoru Kuragaki
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Publication number: 20020032515Abstract: In order to occur a collision warning to prevent the collision in accurate by detecting the preceding vehicle or target, a vehicle lane position estimation device comprising a means for measuring a distance between said host vehicle and said preceding vehicle or a oncoming vehicle, a direction angle from said host vehicle, an angular velocity and a velocity of said host vehicle, a means for calculating lateral and longitudinal distance between said host vehicle and said preceding vehicle or said oncoming vehicle, a means for capturing a front stationary object, a means for obtaining movement of the preceding vehicle or position of the oncoming vehicle, and a means to estimate a lane position of said front stationary object from a relationship of the stationary object being captured and the preceding vehicle being obtained and a positional relationship with the oncoming vehicle.Type: ApplicationFiled: November 8, 2001Publication date: March 14, 2002Applicant: Hitachi, Ltd.Inventors: Mitsuru Nakamura, Jie Bai
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Publication number: 20020016663Abstract: In order to occur a collision warning to prevent the collision in accurate by detecting the preceding vehicle or target, a vehicle lane position estimation device comprising a means for measuring a distance between said host vehicle and said preceding vehicle or a oncoming vehicle, a direction angle from said host vehicle, an angular velocity and a velocity of said host vehicle, a means for calculating lateral and longitudinal distance between said host vehicle and said preceding vehicle or said oncoming vehicle, a means for capturing a front stationary object, a means for obtaining movement of the preceding vehicle or position of the oncoming vehicle, and a means to estimate a lane position of said front stationary object from a relationship of the stationary object being captured and the preceding vehicle being obtained and a positional relationship with the oncoming vehicle.Type: ApplicationFiled: September 4, 2001Publication date: February 7, 2002Applicant: Hitachi, Ltd.Inventors: Mitsuru Nakamura, Jie Bai