Patents by Inventor Hidetoshi Kato
Hidetoshi Kato 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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Publication number: 20100200414Abstract: Provided with a work electrodeposition coating method for immersing a work in a paint in an electrodeposition tank provided with a first positive electrode for supplying a low voltage and a second positive electrode for supplying a high voltage to carry out electrodeposition coating of a work surface.Type: ApplicationFiled: August 27, 2008Publication date: August 12, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kimihiro Sato, Hidetoshi Kato, Masakazu Nakayama
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Publication number: 20090291342Abstract: A fuel cell system includes a fuel cell (1) having a plurality of unit cells (1a) stacked on each other, first and second end plates (1b, 1c) between which the plurality of unit cells are interposed, and a gas supply passage (1d) and a gas discharge passage (1e), both extending in the stacking direction of the unit cells. An inlet (1f) of the gas supply passage (1d) and an outlet (1g) of the gas discharge passage (1e) are located on the first end plate side. A hydrogen concentration sensor (4) is disposed in the gas discharge passage and detects a hydrogen concentration in the gas discharged from the plurality of unit cells. An electricity generation process in the fuel cell is controlled based on the hydrogen concentration detected by a hydrogen concentration sensor (4).Type: ApplicationFiled: March 14, 2007Publication date: November 26, 2009Inventors: Takayoshi Tezuka, Yoshihito Kanno, Hideaki Kume, Hidetoshi Kato
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Publication number: 20090274935Abstract: A fuel cell control system is provided which is designed to ensure the stability of operation of a fuel cell stack. The system includes a magnetic sensor and a controller. The magnetic sensor works to measure a change in magnetic flux density of magnetic field produced by an electric current as generated by electrochemical reaction taken place in each of fuel cells. The controller is designed to analyze the change in magnetic flux density measured by the magnetic sensor to specify the cause and location resulting in a drop in ability of the fuel cell stack to generate electricity which is to occur partially in the fuel cell stack. The controller takes a predetermined measure to control the operation of the fuel cell stack for eliminating the drop in ability of the fuel cell stack to generate the electricity.Type: ApplicationFiled: June 14, 2005Publication date: November 5, 2009Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, NIPPON SOKEN, INC.Inventors: Tetsuro Kikuchi, Kazuo Horibe, Hiroyuki Takashima, Hidetoshi Kato, Naohiro Takeshita
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Publication number: 20080119620Abstract: The curable composition of this invention is a curable composition comprising 1 to 20 parts by weight of an organic peroxide and 0.0005 to 10 parts by weight of a redox reaction initiator containing at least one metal selected from copper, iron, lead, potassium, manganese, indium, nickel and cobalt per 100 parts by weight of a polysulfide polymer with a viscosity of 0.5 to 50 Pa·s at 25° C. The curable composition of this invention has good curing properties. The cured material obtained by curing the curable composition of this invention is not swollen or does not decline in strength even if it is immersed in hot water for a long period of time, showing good water resistance. The curable composition of this invention can be suitably used as a sealant of double glazings, aircraft, civil engineering and architecture.Type: ApplicationFiled: June 16, 2006Publication date: May 22, 2008Inventors: Hidetoshi Kato, Kazunori Matsumoto, Toru Hirose
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Patent number: 6859898Abstract: In a monitor apparatus for a sequential-function-chart-type programmable controller, a standard value of an active time of an arbitrary step in a sequential-function-chart program is stored, and the active time of the arbitrary step is measured during execution of the program. An anomalous state of the arbitrary step is detected through comparison between the measured active time and the reference value. Further, data indicating whether each step in the sequential-function-chart program has been executed are stored. The program is displayed such a manner that an anomalous step, a step or steps which have been executed, and a step or steps which have not yet been executed are distinguished from one another.Type: GrantFiled: September 19, 2000Date of Patent: February 22, 2005Assignee: Toyoda Koki Kabushiki KaishaInventors: Tsuyoshi Yamashita, Masaharu Fujisaki, Hidetoshi Kato, Hiroyuki Takahara
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Patent number: 6313637Abstract: A set battery which generates a high voltage comprises a number of battery modules connected to each other in series. A module voltage of each of the battery modules is detected by a corresponding differential voltage detecting circuit and is transmitted to an A/D convertor. Each of Several voltage detecting blocks is constituted by a plurality of the differential voltage detecting circuits for detecting module voltages of a plurality of the battery modules contiguous to each other. Each of the differential voltage detecting circuits belonging to the same voltage detecting block is applied with a common reference potential which is used to detect the module voltage. The reference potential is set to values which differ from each other for the respective voltage detecting blocks.Type: GrantFiled: November 19, 1998Date of Patent: November 6, 2001Assignee: Denso CorporationInventors: Junichi Iino, Masaya Itou, Hidetoshi Kato, Takashi Yamashita, Tetsuya Kobayashi
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Patent number: 6137263Abstract: A method and device for determining whether a battery for a hybrid vehicle is fully charged includes: detecting the battery current, providing a unit of stored battery energy, detecting Joule heat loss and battery temperature, calculating changes in the battery Joule heat loss and battery temperature while the battery is charged by the unit of stored energy and a ratio between the Joule heat loss and temperature changes, and comparing the ratio of the Joule heat loss and temperature changes with a predetermined level.Type: GrantFiled: March 24, 1999Date of Patent: October 24, 2000Assignees: Nippon Soken, Inc., DENSO CorporationInventors: Toshiyuki Kawai, Hidetoshi Kato, Tetsuya Kobayashi, Takashi Yamashita
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Patent number: 6104164Abstract: A device for detecting a voltage of an individual unit cell included in a combination battery consisting of a number of unit cells connected in series. The unit cells are divided into several groups, and a voltage divider circuit having a cell-side resistor and a reference-side resistor is connected to each unit cell. A divided potential of each unit cell is supplied to a cell voltage detector from each voltage divider circuit. Also, a reference potential that is common to a cell group is supplied to the detector from a junction connecting two neighboring cell groups. The cell voltage detector determines the voltage of each unit cell, group by group, based on a difference between the divided potential and the reference potential. Since the reference potential is common to all the voltage divider circuits in one cell group, the voltage divider circuits can be simplified.Type: GrantFiled: October 19, 1999Date of Patent: August 15, 2000Assignee: Denso CorporationInventors: Junichi Iino, Hidetoshi Kato
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Patent number: 5864237Abstract: A battery condition detecting method is provided which includes the steps of setting a current required during standard discharge of a battery as a set current, detecting a discharge current and a voltage of the battery, determining a battery voltage when the battery discharges the set current based on the discharge current and the voltage of die battery, and projecting an actual voltage of the battery based on the battery voltage determined.Type: GrantFiled: February 21, 1997Date of Patent: January 26, 1999Assignees: Nippondenso Co., Ltd., Nippon Soken Inc., Toyota Jidosha Kabushiki KaishaInventors: Toshiyuki Kawai, Daisuke Makino, Mitsunobu Uchida, Hidetoshi Kato, Torahiko Sasaki
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Patent number: 5680050Abstract: A battery condition detecting method is provided which includes the steps of setting a current required during standard discharge of a battery as a set current, detecting a discharge current and a voltage of the battery, determining a battery voltage when the battery discharge the set current based on the discharge current and the voltage of the battery, and projecting an actual voltage of the battery based on the battery-voltage determined.Type: GrantFiled: March 7, 1995Date of Patent: October 21, 1997Assignees: Nippondenso Co., Ltd., Nippon Soken Inc., Toyota Jidosha Kabushiki KaishaInventors: Toshiyuki Kawai, Daisuke Makino, Mitsunobu Uchida, Hidetoshi Kato, Torahiko Sasaki
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Patent number: 5412323Abstract: A battery condition detecting apparatus includes a current detecting apparatus, a voltage detector and a current accumulator of a battery. The battery condition detecting apparatus detects a first battery capacity when an engine is started based on the battery voltage and battery current when the starter is started; determines an initial capacity of the battery based on the first battery capacity; adds to this initial capacity, a battery current accumulated value which has been accumulated by the battery current accumulator after determining the first battery capacity, whereby a second battery capacity is detected after the engine has been started; and further comparing the presently detected first battery capacity with the second battery capacity just before this first battery capacity is detected, thereby setting the smaller capacity as the initial value.Type: GrantFiled: December 10, 1993Date of Patent: May 2, 1995Assignee: Nippondenso Co., Ltd.Inventors: Hidetoshi Kato, Nobuo Mayumi, Masatoshi Togawa
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Patent number: 5280231Abstract: A battery condition detecting apparatus includes a current detecting apparatus, a voltage detector and a current accumulator of a battery. The battery condition detecting apparatus detects a first battery capacity when an engine is started based on the battery voltage and battery current when the starter is started; determines an initial capacity of the battery based on the first battery capacity; adds to this initial capacity, a battery current accumulated value which has been accumulated by the battery current accumulator after determining the first battery capacity, whereby a second battery capacity is detected after the engine has been started; and further comparing the presently detected first battery capacity with the second battery capacity just before this first battery capacity is detected, thereby setting the smaller capacity as the initial value.Type: GrantFiled: July 1, 1991Date of Patent: January 18, 1994Assignee: Nippondenso Co., Ltd.Inventors: Hidetoshi Kato, Nobuo Mayumi, Masatoshi Togawa, Keiichiro Banzai, Takeshi Sada, Hirohide Sato
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Patent number: 5157321Abstract: In a charging control apparatus for a vehicle for controlling generation of electric power from a vehicle's generator charging a battery, the rate of increase in the field current of the generator is increased when an electrical load is connected to the generator. A switch is connected in series with the field winding, and a mean conduction rate detector detects the mean conduction rate of the switch and generates an output signal having a value which is a function of the mean conduction rate of the switch. A maximum signal generator generates an output signal having a value larger by a predetermined value than that of the output signal of the mean conduction rate detector, and a comparator is enabled to operate while the maximum signal generator is generating the maximum signal. The comparator is preferably enabled again when the value of the mean output signal of the conduction rate detector exceeds a preset value.Type: GrantFiled: October 30, 1989Date of Patent: October 20, 1992Assignee: Nippondenso Co., Ltd.Inventors: Hidetoshi Kato, Hiroshi Shibata, Tooru Aoyama, Kouji Tanaka
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Patent number: 4957876Abstract: This invention provides a resin sealed IC regulator, which comprises a first connecting terminal electrically connected to a generator, a second connecting terminal electrically connected to a device other than the generator, a monolithic IC which controls an operation of the generator, mounted on a conductive member, and connected to both the first connecting terminal and the second connecting terminal and a resin molded portion of an electric insulating resin sealing the monolithic IC and at least a portion of the first and second connecting terminals are connected to the monolithic IC.Whereby an IC regulator which can be effectively used with an electrical load can be obtained, and further, an IC regulator having a more reliable control performance and able to be produced at low production cost can be obtained.Type: GrantFiled: January 17, 1990Date of Patent: September 18, 1990Assignee: Nippondenso Co., Ltd.Inventors: Hiroshi Shibata, Fuyuki Maehara, Akira Shintai, Hidetoshi Kato
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Patent number: 4899209Abstract: This invention provides a resin sealed IC regulator, which comprises a first connecting terminal electrically connected to a generator, a second connecting terminal electrically connected to a device other than the generator, a monolithic IC which controls an operation of the generator, mounted on a conductive member, and connected to both the first connecting terminal and the second connecting terminal and a resin molded portion of an electric insulating resin sealing the monolithic IC and at least a portion of the first and second connecting terminals are connected to the monlithic IC.Whereby an IC regulator which can be effectively used with an electrical load can be obtained, and further, an IC regulator having a more reliable control performance and able to be produced at low production cost can be obtained.Type: GrantFiled: June 3, 1988Date of Patent: February 6, 1990Assignee: Nippondenso Co., Ltd.Inventors: Hiroshi Shibata, Fuyuki Maehara, Akira Shintai, Hidetoshi Kato
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Patent number: 4794898Abstract: In a battery charging system for an automobile, the conduction rate of a switching circuit which controls field current of the generator is detected, while engine speed is also detected. Since the conduction rate represents the actual amount of electricity generated by the generator, the conduction rate as well as engine speed is used to determine optimal engine idle speed. To this end desired conduction rate values for various engine speeds within idle speed range are prestored in a memory, and a desired conduction rate is read out using detected engine speed so that a detected conduction rate will be compared with the desired conduction rate. Using the result of comparisonn, idle speed is either increased or decreased so that the actual conduction rate approaches the desired conduction rate. In one embodiment, the generator is disabled when the actual conduction rate is greater than the desired conduction rate in order to prevent engine stall.Type: GrantFiled: February 29, 1988Date of Patent: January 3, 1989Assignee: Nippondenso Co., Ltd.Inventor: Hidetoshi Kato
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Patent number: 4670704Abstract: A voltage regulator maintains an output voltage of an alternator of a vehicle to a voltage in the vicinity of a preset voltage. The voltage regulator has a microcomputer for setting the OFF duty ratio, a switching circuit for switching on or off an electric current flowing through a rotor coil of the alternator and a load sensor for detecting the operation of the intermittent load. The microcomputer sets the OFF duty ratio to a value directly proportional to the difference between the output voltage and the preset voltage before the operation of the intermittent load is started. And the microcomputer gradually decreases the OFF duty ratio set by said duty ratio setting means at the initial operation time of the intermittent load, and memorizes the OFF duty ratio when the output voltage reaches its upper limit value exceeding the preset voltage.Type: GrantFiled: June 10, 1986Date of Patent: June 2, 1987Assignee: Nippondenso Co., Ltd.Inventors: Fuyuky Maehara, Hidetoshi Kato
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Patent number: 4665354Abstract: A battery voltage regulator for a vehicle charging system includes a voltage control circuit for controlling a battery terminal voltage and an external terminal connected to the positive terminal of a battery through the series combination of a charge lamp and an ignition switch. The regulator is at least composed of a charge lamp drive circuit responsive to a generation output of an alternator in order to energize the charge lamp, a power supply circuit responsive to the potential at the above mentioned external terminal to supply operational power to the voltage control circuit, and a malfunction-preventing circuit connected between the above mentioned external terminal and ground. The malfunction-preventing circuit prevents the power supply circuit from operating by disturbances such as leakage current flowing into the regulator through the external terminal.Type: GrantFiled: August 6, 1985Date of Patent: May 12, 1987Assignee: Nippondenso Co., Ltd.Inventors: Takeshi Sada, Hidetoshi Kato, Hiroshi Shibata, Kazumasa Mori, Nobuo Mayumi, Hirohide Sato, Yoshio Akita, Shigeru Tanaka
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Patent number: 4641196Abstract: A metal ring preventing the implosion of a cathode-ray tube is fitted on a maximum outer peripheral length part, i.e., the so-called mold match line formation part, of a cathode-ray tube (the so-called Braun tube) of a television receiver in order to provide an implosion-proof cathode-ray tube. The cathode-ray tube implosion-preventing metal ring (10) is formed so that at least two metal strip members (11) are each formed with welding reference projections (13) at the end portions thereof, and these metal strip members (11) are bent so that an annular body formed by connecting these metal strip members (11) has a shape similar to the mold match line formation part of the cathode-ray tube, and they are then welded together while being positioned by the welding reference projections (13). It is also possible to provide a bending reference projection (14) in the central portion of each metal strip member (11), and bend each metal strip member (11) while positioning it by means of the projection (14).Type: GrantFiled: November 16, 1984Date of Patent: February 3, 1987Assignee: Sony CorporationInventors: Kazuhiko Musha, Kohichi Tago, Hidetoshi Kato
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Patent number: 4641079Abstract: The battery voltage regulating system for vehicle use of this invention controls the energization of an alternating-current generator by a generation control circuit responsive to a battery voltage in normal operation. However, if a fault condition such as the damage of a resistor of the generation control circuit or a break in the warning line occurs, and even if the resulting warning is ignored or over-looked by the driver, a warning control circuit provided a requisite control to regulate the generator's generation while giving a warning. In this manner, an average voltage of a battery is kept substantially equal to a predetermined constant value controlled by said generation control circuit even if such unexpected situation occurs. Thus, the battery voltage regulating system can prevent the battery from being excessively charged.Type: GrantFiled: February 15, 1985Date of Patent: February 3, 1987Assignee: Nippondenso Co., Ltd.Inventors: Hidetoshi Kato, Fuyuky Maehara, Nobuo Mayumi