Patents by Inventor Nobuhide Kato
Nobuhide 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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Patent number: 9958063Abstract: A hydraulic control device controls hydraulic pressure supplied to a continuously variable transmission. The hydraulic control device includes a pressure regulating valve, a solenoid valve configured to control the pilot pressure, line pressure control means, and hydraulic control means. The pressure regulating valve includes an input port to which line pressure is input, an output port configured to supply an oil chamber of a second pulley with a second pulley pressure, a drain port configured to discharge the second pulley pressure from the oil chamber, and a spool moving according to pilot pressure to regulate the second pulley pressure. The line pressure control means is configured to control the line pressure on the basis of the second pulley pressure and first pulley pressure of first pulley. The hydraulic control means is configured to temporarily change the pilot pressure from set pressure to configure the line pressure identical to the second pulley pressure.Type: GrantFiled: February 16, 2015Date of Patent: May 1, 2018Assignee: JATCO LtdInventors: Yasuyuki Hashimoto, Seiichiro Takahashi, Tomoaki Honma, Tomoaki Kabe, Nobuhiko Morifuji, Nobuhide Kato, Hitoshi Goka, Koichi Sugita
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Publication number: 20160356380Abstract: A hydraulic control device controls hydraulic pressure supplied to a continuously variable transmission. The hydraulic control device includes a pressure regulating valve, a solenoid valve configured to control the pilot pressure, line pressure control means, and hydraulic control means. The pressure regulating valve includes an input port to which line pressure is input, an output port configured to supply an oil chamber of a second pulley with a second pulley pressure, a drain port configured to discharge the second pulley pressure from the oil chamber, and a spool moving according to pilot pressure to regulate the second pulley pressure. The line pressure control means is configured to control the line pressure on the basis of the second pulley pressure and first pulley pressure of first pulley. The hydraulic control means is configured to temporarily change the pilot pressure from set pressure to configure the line pressure identical to the second pulley pressure.Type: ApplicationFiled: February 16, 2015Publication date: December 8, 2016Applicant: JATCO LtdInventors: Yasuyuki HASHIMOTO, Seiichiro TAKAHASHI, Tomoaki HONMA, Tomoaki KABE, Nobuhiko MORIFUJI, Nobuhide KATO, Hitoshi GOKA, Koichi SUGITA
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Patent number: 9002601Abstract: In a shift control apparatus of a continuously variable transmission (CVT) configured to steplessly vary a torque, the control apparatus employs an acceleration intention determination section for determining the presence or absence of a driver's acceleration intention, a shift mode setting section for setting a shift-control mode from a normal mode to an acceleration mode in the presence of the driver's acceleration intention, a shift speed setting section for setting a shift speed based on a target transmission ratio and a vehicle speed, and a shift control section for controlling a shift of the CVT. Also provided is a shift speed correction section for correcting the shift speed for an initial downshift in the acceleration mode to a shift speed slower than the shift speed set by the shift speed setting section, only when a demanded degree of the driver's acceleration intention is small.Type: GrantFiled: November 21, 2012Date of Patent: April 7, 2015Assignee: Jatco LtdInventors: Tomoaki Kabe, Nobuhiko Morifuji, Keisuke Ichikawa, Nobuhide Kato, Yuki Ono, Hiromu Ogino, Yukinobu Sakakibara, Hisao Nakanishi, Takahiro Nakata, Mitsuki Ishizuka
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Patent number: 8660762Abstract: When temperature increase promotion processing (for example, prohibiting lockup application and prohibiting shifts to a high gear position) is started while an initial value of an ATF temperature is in a low temperature region, an ATCU determines whether to terminate the temperature increase promotion processing on the basis of a current ATF temperature, and when the temperature increase promotion processing is started while the initial value of the ATF temperature is in an extremely low temperature region, the ATCU determines whether to terminate the temperature increase promotion processing on the basis of a duration of the temperature increase promotion processing. When the temperature increase promotion processing is determined to be complete, the ATCU terminates the temperature increase promotion processing.Type: GrantFiled: October 21, 2010Date of Patent: February 25, 2014Assignees: Jatco Ltd, Mitsubishi Electric CorporationInventors: Nobuhide Kato, Nobuhiko Morifuji, Toyotaro Yoshida, Toshimitsu Yamamoto
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Patent number: 8657720Abstract: A shift control apparatus for a continuously variable transmission includes: a target transmission gear ratio setting section configured to set a target transmission gear ratio with reference to a map based on an accelerator opening degree and a vehicle speed; a shift control section configured to control a shift of the continuously variable transmission based on the target transmission gear ratio; and a downshift restricting section configured to judge whether or not a restriction of the downshift is needed based on at least one of a variation amount of the accelerator opening degree and an accelerator depression speed, and to perform the restriction of the downshift when the downshift restricting section judges that the restriction of the downshift is needed, irrespective of a variation of the accelerator opening degree inputted to the target transmission gear ratio setting section.Type: GrantFiled: December 12, 2012Date of Patent: February 25, 2014Assignee: JATCO LtdInventors: Tomoaki Kabe, Nobuhiko Morifuji, Keisuke Ichikawa, Nobuhide Kato, Yuki Ono, Hiromu Ogino, Yukinobu Sakakibara, Hisao Nakanishi, Takahiro Nakata, Mitsuki Ishizuka
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Patent number: 8617029Abstract: A shift control apparatus for continuously variable transmission includes: a pseudo accelerator opening degree generating section configured to generate a pseudo accelerator opening degree larger than the actual accelerator opening degree when the actual accelerator opening degree is decreased when the judging section judges that the vehicle runs the uphill; the target transmission gear ratio setting section being configured to set the target transmission gear ratio by the pseudo accelerator opening degree when the pseudo accelerator opening degree is inputted, and the shift control section being configured to control the shift toward the target transmission gear ratio set based on the pseudo accelerator opening degree and the vehicle speed when the pseudo accelerator opening degree is generated, and to control the shift toward the target transmission gear ratio set based on the actual accelerator opening degree and the vehicle speed when the pseudo accelerator opening degree is not generated.Type: GrantFiled: December 12, 2012Date of Patent: December 31, 2013Assignee: Jatco LtdInventors: Tomoaki Kabe, Nobuhiko Morifuji, Keisuke Ichikawa, Nobuhide Kato, Yuki Ono, Hiromu Ogino, Yukinobu Sakakibara, Hisao Nakanishi, Takahiro Nakata, Mitsuki Ishizuka
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Publication number: 20110098896Abstract: When temperature increase promotion processing (for example, prohibiting lockup application and prohibiting shifts to a high gear position) is started while an initial value of an ATF temperature is in a low temperature region, an ATCU determines whether to terminate the temperature increase promotion processing on the basis of a current ATF temperature, and when the temperature increase promotion processing is started while the initial value of the ATF temperature is in an extremely low temperature region, the ATCU determines whether to terminate the temperature increase promotion processing on the basis of a duration of the temperature increase promotion processing. When the temperature increase promotion processing is determined to be complete, the ATCU terminates the temperature increase promotion processing.Type: ApplicationFiled: October 21, 2010Publication date: April 28, 2011Inventors: Nobuhide KATO, Nobuhiko Morifuji, Toyotaro Yoshida, Toshimitsu Yamamoto
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Patent number: 7655131Abstract: Disclosed is a gas sensor for controlling a concentration of oxygen and/or measuring NOx by allowing a current to flow through an ion-conductive member for conducting oxygen ion, by the aid of a current supply circuit, wherein the current, which is outputted from the current supply circuit, has a pulse waveform (current signal) having a constant crest value, and the current supply circuit comprises a rectangular wave-generating circuit for controlling a frequency of the current signal on the basis of an electromotive force generated in the ion-conductive member to which the current signal is supplied. Accordingly, it is possible to highly accurately measure the predetermined gas component while scarcely being affected by the electric noise or the like.Type: GrantFiled: October 19, 2006Date of Patent: February 2, 2010Assignee: NGK Insulators, Ltd.Inventors: Nobuhide Kato, Yasuhiko Hamada, Nobuyuki Kokune
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Patent number: 7445700Abstract: A gas sensor for measuring an amount of a measurement gas component, including a solid electrolyte having an internal space, a gas-introducing port for introducing measurement gas from an external space into the internal space, diffusion rate-determining means between the internal space and the gas-introducing port, and inner and outer pumping electrodes for pumping-processing oxygen contained in the measurement gas. The diffusion rate-determining means includes slits each having, when viewed in a plane substantially perpendicular to a longitudinal extension axis thereof, two dimensions, with at least one dimension of each slit being not more than 10 microns.Type: GrantFiled: June 21, 2004Date of Patent: November 4, 2008Assignee: NGK Insulators, Ltd.Inventors: Nobuhide Kato, Kunihiko Nakagaki
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Publication number: 20070034531Abstract: Disclosed is a gas sensor for controlling a concentration of oxygen and/or measuring NOx by allowing a current to flow through an ion-conductive member for conducting oxygen ion, by the aid of a current supply circuit, wherein the current, which is outputted from the current supply circuit, has a pulse waveform (current signal) having a constant crest value, and the current supply circuit comprises a rectangular wave-generating circuit for controlling a frequency of the current signal on the basis of an electromotive force generated in the ion-conductive member to which the current signal is supplied. Accordingly, it is possible to highly accurately measure the predetermined gas component while scarcely being affected by the electric noise or the like.Type: ApplicationFiled: October 19, 2006Publication date: February 15, 2007Applicant: NGK Insulators, Ltd.Inventors: Nobuhide Kato, Yasuhiko Hamada, Nobuyuki Kokune
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Patent number: 7160435Abstract: Disclosed is a gas sensor for controlling a concentration of oxygen and/or measuring NOx by allowing a current to flow through an ion-conductive member for conducting oxygen ion, by the aid of a current supply circuit, wherein the current, which is outputted from the current supply circuit, has a pulse waveform (current signal) having a constant crest value, and the current supply circuit comprises a rectangular wave-generating circuit for controlling a frequency of the current signal on the basis of an electromotive force generated in the ion-conductive member to which the current signal is supplied. Accordingly, it is possible to highly accurately measure the predetermined gas component while scarcely being affected by the electric noise or the like.Type: GrantFiled: June 27, 2003Date of Patent: January 9, 2007Assignee: NGK Insulators, Ltd.Inventors: Nobuhide Kato, Yasuhiko Hamada, Nobuyuki Kokune
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Patent number: 6921883Abstract: Temperature of a heater is controlled by switching an increasing rate of a resistance value of heating unit of the heater. During a period T1 from a time point when heating of the heater is started until the resistance value of the heating unit reaches a reference value, the increasing rate is changed in multiple heating stages. In this manner, the temperature and the resistance value of the heating unit are increased. During a period T2 from a time point when the resistance value of the heating unit reaches the reference value, feedback control is performed such that the resistance value is kept at the reference value as a target value.Type: GrantFiled: March 6, 2002Date of Patent: July 26, 2005Assignee: NGK Insulators, Ltd.Inventors: Kimie Kato, Takeya Miyashita, Nobuhide Kato
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Publication number: 20040231985Abstract: A gas sensor for measuring an amount of a measurement gas component, including a solid electrolyte having an internal space, a gas-introducing port for introducing measurement gas from an external space into the internal space, diffusion rate-determining means between the internal space and the gas-introducing port, and inner and outer pumping electrodes for pumping-processing oxygen contained in the measurement gas. The diffusion rate-determining means includes slits each having, when viewed in a plane substantially perpendicular to a longitudinal extension axis thereof, two dimensions, with at least one dimension of each slit being not more than 10 microns.Type: ApplicationFiled: June 21, 2004Publication date: November 25, 2004Applicant: NGK Insulators, Ltd.Inventors: Nobuhide Kato, Kunihiko Nakagaki
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Patent number: 6770181Abstract: A gas sensor for measuring an amount of a measurement gas component, including a solid electrolyte having an internal space, a gas-introducing port for introducing measurement gas from an external space into the internal space, diffusion rate-determining means between the internal space and the gas-introducing port, and inner and outer pumping electrodes for pumping-processing oxygen contained in the measurement gas. The diffusion rate-determining means includes slits each having, when viewed in a plane substantially perpendicular to a longitudinal extension axis thereof, two dimensions, with at least one dimension of each slit being not more than 10 microns.Type: GrantFiled: January 15, 2003Date of Patent: August 3, 2004Assignee: NGK Insulators, Ltd.Inventors: Nobuhide Kato, Kunihiko Nakagaki
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Publication number: 20040089544Abstract: Disclosed is a gas sensor for controlling a concentration of oxygen and/or measuring NOx by allowing a current to flow through an ion-conductive member for conducting oxygen ion, by the aid of a current supply circuit, wherein the current, which is outputted from the current supply circuit, has a pulse waveform (current signal) having a constant crest value, and the current supply circuit comprises a rectangular wave-generating circuit for controlling a frequency of the current signal on the basis of an electromotive force generated in the ion-conductive member to which the current signal is supplied. Accordingly, it is possible to highly accurately measure the predetermined gas component while scarcely being affected by the electric noise or the like.Type: ApplicationFiled: June 27, 2003Publication date: May 13, 2004Applicant: NGK Insulators, Ltd.Inventors: Nobuhide Kato, Yasuhiko Hamada, Nobuyuki Kokune
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Patent number: 6689266Abstract: A NOx sensor for measuring NOx concentration including a main pumping cell and a detecting electrode, the main pumping cell-including an electrode having no decomposing/reducing ability for NOx or a low decomposing/reducing ability for NOx, to be used to control oxygen concentration in a measurement gas to have a predetermined value at which NO is not substantially decomposable, and the detecting electrode having a certain decomposing/reducing ability for NOx or a high decomposing/reducing ability for NOx, to be used so that NOx is decomposed to measure the NOx concentration by measuring an amount of oxygen produced during this process, wherein a cermet electrode composed of a Pt—Rh alloy and a ceramic component is used as the detecting electrode. Accordingly, it is possible to suppress the oxidation of Rh and the reconversion into the metal contained in the detecting electrode, stabilize the impedance, and stabilize the sensitivity to NOx.Type: GrantFiled: May 29, 2002Date of Patent: February 10, 2004Assignee: NGK Insulators, Ltd.Inventors: Nobuhide Kato, Kunihiko Nakagaki, Satoshi Nishikawa
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Patent number: 6679286Abstract: A compact ball tap with 1 a water level switch which comprises a guide standpipe 5 vertically arranged in a tank T, a float 6 slidably installed on the guide standpipe 5, a valve 3, a lever 4 controlling an open-close action of the valve 3 connected with the float 6, and a water level switch 29 transmitting predetermined control signals when the float 6 shifts to a predetermined water level, wherein one float 6 is shared by the ball tap 1 and the water level switch 29.Type: GrantFiled: July 24, 2002Date of Patent: January 20, 2004Assignee: Yoshitake Inc.Inventors: Nobuhide Kato, Hiroyuki Mizuno
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Patent number: 6623618Abstract: Disclosed is a gas sensor for controlling a concentration of oxygen and/or measuring NOx by allowing a current to flow through an ion-conductive member for conducting oxygen ion, by the aid of a current supply circuit, wherein the current, which is outputted from the current supply circuit, has a pulse waveform (current signal) having a constant crest value, and the current supply circuit comprises a rectangular wave-generating circuit for controlling a frequency of the current signal on the basis of an electromotive force generated in the ion-conductive member to which the current signal is supplied. Accordingly, it is possible to highly accurately measure the predetermined gas component while scarcely being affected by the electric noise or the like.Type: GrantFiled: June 21, 2000Date of Patent: September 23, 2003Assignee: NGK Insulators, Ltd.Inventors: Nobuhide Kato, Yasuhiko Hamada, Nobuyuki Kokune
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Publication number: 20030136674Abstract: A gas sensor for measuring an amount of a measurement gas component, including a solid electrolyte having an internal space, a gas-introducing port for introducing measurement gas from an external space into the internal space, diffusion rate-determining means between the internal space and the gas-introducing port, and inner and outer pumping electrodes for pumping-processing oxygen contained in the measurement gas. The diffusion rate-determining means includes slits each having, when viewed in a plane substantially perpendicular to a longitudinal extension axis thereof, two dimensions, with at least one dimension of each slit being not more than 10 microns.Type: ApplicationFiled: January 15, 2003Publication date: July 24, 2003Applicant: NGK Insulators, Ltd.Inventors: Nobuhide Kato, Kunihiko Nakagaki
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Publication number: 20030056827Abstract: A compact ball tap with 1 a water level switch which comprises a guide standpipe 5 vertically arranged in a tank T, a float 6 slidably installed on the guide standpipe 5, a valve 3, a lever 4 controlling an open-close action of the valve 3 connected with the float 6, and a water level switch 29 transmitting predetermined control signals when the float 6 shifts to a predetermined water level, wherein one float 6 is shared by the ball tap 1 and the water level switch 29.Type: ApplicationFiled: July 24, 2002Publication date: March 27, 2003Applicant: YOSHITAKE INC.Inventors: Nobuhide Kato, Hiroyuki Mizuno