Patents by Inventor Hitoshi Kamura

Hitoshi Kamura 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).

  • Patent number: 7739868
    Abstract: A deterioration diagnostic system of an exhaust gas purifying catalyst includes: an upstream side switching frequency calculator calculating the number of times of switching on the upstream side; a reference value calculator calculating a downstream side rich/lean determination level having a first width; a downstream side rich/lean determination level adjuster setting the first width to a second larger width when the number of times of switching on the upstream side is smaller than a predetermined value; a downstream side switching frequency calculator calculating the number of times of switching on the downstream side; a frequency ratio calculator calculating a frequency ratio between the number of times of switching on the downstream side and the number of times of switching on the upstream side; and a deterioration determiner determining the deterioration of the exhaust gas purifying catalyst when the frequency ratio is larger than a predetermined value.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: June 22, 2010
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Daisuke Chino, Kenji Saito, Hitoshi Kamura
  • Patent number: 7729846
    Abstract: A control device for an engine includes an air-fuel ratio detector detecting an air-fuel ratio of an exhaust gas of the engine. A feedback controller performs a feedback control of an amount of a fuel injection of mixed fuel including alcohol so that the air-fuel ratio detected by the air-fuel ratio detector is come close to a target air-fuel ratio, the mixed fuel supplied from a fuel feeder. A concentration estimator estimates a concentration of the alcohol in the mixed fuel based on the air-fuel ratio of the exhaust gas and a correction amount for the amount of the fuel injection controlled by the feedback control. A malfunction determiner determines that the fuel feeder has a malfunction when the correction amount is greater than or equal to a value for a period which is longer than a first period in a second period. The second period is from a first time point when the feedback controller starts to perform the feedback control.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: June 1, 2010
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Junya Kitada, Shigetoshi Hirano, Koji Kawakita, Hitoshi Kamura, Katsuhiro Furuta
  • Publication number: 20100065031
    Abstract: A control device for an engine includes an air-fuel ratio detector detecting an air-fuel ratio of an exhaust gas of the engine. A feedback controller performs a feedback control of an amount of a fuel injection of mixed fuel including alcohol so that the air-fuel ratio detected by the air-fuel ratio detector is come close to a target air-fuel ratio, the mixed fuel supplied from a fuel feeder. A concentration estimator estimates a concentration of the alcohol in the mixed fuel based on the air-fuel ratio of the exhaust gas and a correction amount for the amount of the fuel injection controlled by the feedback control. A malfunction determiner determines that the fuel feeder has a malfunction when the correction amount is greater than or equal to a value for a period which is longer than a first period in a second period. The second period is from a first time point when the feedback controller starts to perform the feedback control.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 18, 2010
    Inventors: Junya KITADA, Shigetoshi HIRANO, Koji KAWAKITA, Hitoshi KAMURA, Katsuhiro FURUTA
  • Publication number: 20100040801
    Abstract: A material for vapor deposition which is obtained by mixing a specific organosilicon compound having an alkyl group substituted with fluorine, a specific silane compound and a specific modified silicone oil, a process for producing an optical member which comprises a step of solidifying the material for vapor deposition described above by heating and a step of vapor depositing the solidified material for vapor deposition on a substrate made of a plastics by heating by a heating means to form a thin film exhibiting a water-repelling property, a process for producing a plastic lens for spectacles which is the above process applied to producing the plastic lens for spectacles, and a plastic lens for spectacles which is produced in accordance with the process.
    Type: Application
    Filed: September 28, 2007
    Publication date: February 18, 2010
    Inventors: Takeshi Mitsuishi, Hitoshi Kamura, Kenichi Shinde, Yukihiro Takahashi
  • Publication number: 20090248882
    Abstract: An SNS system is provided with: a user attribute storage unit that stores user attributes for each user; a community attribute storage unit that stores a community grade rank for each community; an access allowance/rejection determination unit that determines whether or not to allow a user to access a community based on the community grade rank of the community and the user attributes of the user; and a community viewing processing unit that executes a process for distributing the content uploaded in the community to the user in the case where the access allowance/rejection determination unit has determined to allow the user to access the social group, and does not execute the process for distributing the content uploaded in the community to the user in the case where the access allowance/rejection determination unit has determined to prohibit the user from accessing the social group.
    Type: Application
    Filed: December 3, 2008
    Publication date: October 1, 2009
    Applicant: FUJITSU SHIKOKU SYSTEMS LIMITED
    Inventors: Tomohiro Takagi, Hitoshi Kamura
  • Publication number: 20090243489
    Abstract: An electric power generation control device for a motor vehicle is provided which ensures a satisfactory regenerative effect without entailing flickering of or reduction in life of headlights even if the headlights are turned on at all times. The electric power generation control device lowers the power generation voltage of an alternator when the electricity storage amount of a battery is at or above a predetermined level. While lighting of a headlight bulb is detected, lowering of the power generation voltage is restrained if the state of sunlight is equivalent to nighttime, and the power generation voltage is allowed to be lowered if the sunlight state is equivalent to daytime.
    Type: Application
    Filed: November 24, 2008
    Publication date: October 1, 2009
    Inventors: Hiroshi FUNAKOSHI, Hidehito TOMONARI, Hitoshi KAMURA
  • Publication number: 20090241198
    Abstract: An SNS system 1 is provided with: an inappropriateness questioning pattern storage unit that stores an inappropriate upload pattern that is a pattern of a trend seen when multiple pieces of inappropriate content are uploaded; and a post pattern evaluation unit and overall evaluation unit that determine whether or not the content is inappropriate by checking whether or not the inappropriate upload pattern stored in the inappropriateness questioning pattern storage unit is seen when the multiple pieces of content are uploaded.
    Type: Application
    Filed: December 3, 2008
    Publication date: September 24, 2009
    Applicant: FUJITSU SHIKOKU SYSTEMS LIMITED
    Inventors: Tomohiro Takagi, Hitoshi Kamura
  • Patent number: 7565901
    Abstract: When the opening angle of an intake control valve is limited to a given opening angle by fuel cut, an EGR apparatus is activated, and a malfunction of the EGR apparatus is diagnosed on the basis of a change in intake manifold pressure before and after the activation of the EGR apparatus. When the control for reducing the intake-manifold negative pressure is not implemented, the change of the intake manifold pressure is corrected with a changing amount of first reference intake pressure (P(Ne)) changed by engine speed Ne. When the control for reducing the intake manifold genitive pressure is implemented, the change of the intake manifold pressure is corrected with a changing amount of second reference intake pressure (PL(Ne)) changed by engine speed Ne.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: July 28, 2009
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Katsuhiro Furuta, Daisuke Chino, Kenji Saito, Hitoshi Kamura, Akihiro Iwama, Akira Tsunooka
  • Publication number: 20090141357
    Abstract: The present invention relates to a plastic lens comprising a multilayer antireflective film and to a method for manufacturing the same. The plastic lens has a multilayer antireflective film present on the surface of a plastic lens substrate, either directly or through another layer. The multilayer antireflective film comprises a composite layer in which at least two metal oxide layers, containing an identical metal element but different quantities of oxygen, are adjacent. In the method for manufacturing the above plastic lens, each of the metal oxide layers constituting said composite layer is formed by employing a single vaporization source and by vapor depositing adjacent layers under differing conditions of partial pressure of reactive oxygen gas.
    Type: Application
    Filed: November 25, 2008
    Publication date: June 4, 2009
    Applicant: HOYA CORPORATION
    Inventors: Hitoshi KAMURA, Yukihiro Takahashi, Hisao Kawai
  • Publication number: 20080202482
    Abstract: When the opening angle of an intake control valve is limited to a given opening angle by fuel cut, an EGR apparatus is activated, and a malfunction of the EGR apparatus is diagnosed on the basis of a change in intake manifold pressure before and after the activation of the EGR apparatus. When the control for reducing the intake-manifold negative pressure is not implemented, the change of the intake manifold pressure is corrected with a changing amount of first reference intake pressure (P(Ne)) changed by engine speed Ne. When the control for reducing the intake manifold genitive pressure is implemented, the change of the intake manifold pressure is corrected with a changing amount of second reference intake pressure (PL(Ne)) changed by engine speed Ne.
    Type: Application
    Filed: February 11, 2008
    Publication date: August 28, 2008
    Inventors: Katsuhiro Furuta, Daisuke Chino, Kenji Saito, Hitoshi Kamura, Akihiro Iwama, Akira Tsunooka
  • Patent number: 7318959
    Abstract: The present invention provides an optical member having a plastic substrate and a multilayered antireflection film formed by vapor deposition, wherein at least one layer in the antireflection film is a hybrid layer formed of at least one inorganic substance selected from silicon dioxide, aluminum oxide, titanium oxide, zirconium oxide, tantalum oxide, yttrium oxide, and niobium oxide and an organosilicon compound that is a liquid at normal temperature and at atmospheric pressure and/or an organic compound not containing silicon that is a liquid at normal temperature and at atmospheric pressure as vapor deposition raw materials.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: January 15, 2008
    Assignee: Hoya Corporation
    Inventors: Takeshi Mitsuishi, Takeshi Imizu, Hiroshi Kojima, Hitoshi Kamura, Ken-ichi Shinde
  • Publication number: 20070261390
    Abstract: A deterioration diagnostic system of an exhaust gas purifying catalyst includes: an upstream side switching frequency calculator calculating the number of times of switching on the upstream side; a reference value calculator calculating a downstream side rich/lean determination level having a first width; a downstream side rich/lean determination level adjuster setting the first width to a second width larger than the first width when the number of times of switching on the upstream side is smaller than a predetermined value; a downstream side switching frequency calculator calculating the number of times of switching on the downstream side; an intake air volume calculator calculating an intake air volume; a frequency ratio calculator calculating a frequency ratio between the number of times of switching on the downstream side and the number of times of switching on the upstream side; and a deterioration determiner determining the deterioration of the exhaust gas purifying catalyst when the frequency ratio is
    Type: Application
    Filed: May 8, 2007
    Publication date: November 15, 2007
    Inventors: Daisuke Chino, Kenji Saito, Hitoshi Kamura
  • Patent number: 7249453
    Abstract: Prior to failure determination of a three-way catalyst, which is carried out on the basis of a reverse frequency ratio of upstream and downstream O2 sensors, deterioration determination is performed at the point when the reverse frequency ratio of the O2 sensors starts to increase, and low NOx control is then implemented. The implement of the low NOx control makes it possible to compensate for the deterioration of the three-way catalyst with respect to NOx purification and to keep NOx emissions from the three-way catalyst equal to or less than the regulation value.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: July 31, 2007
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kenji Saito, Yoshiaki Higuchi, Hitoshi Kamura
  • Patent number: 7106515
    Abstract: A method for producing an optical element having a multi-layered antireflection film formed on a synthetic resin substrate, in which the antireflection film formed has good heat resistance, and its heat resistance lowers little with time. At least one high-refraction layer of the multi-layered anti-reflection film contains niobium oxide, zirconium oxide, yttrium oxide, and optionally aluminum oxide. High-refraction layers can be formed within a shorter period of time while not detracting from the good physical properties intrinsic to the layers.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: September 12, 2006
    Assignee: Hoya Corporation
    Inventors: Takeshi Mitsuishi, Hitoshi Kamura, Kenichi Shinde, Hiroki Takei, Akinori Kobayashi, Yukihiro Takahashi, Yuko Watanabe
  • Publication number: 20060137326
    Abstract: Prior to failure determination of a three-way catalyst, which is carried out on the basis of a reverse frequency ratio of upstream and downstream O2 sensors, deterioration determination is performed at the point when the reverse frequency ratio of the O2 sensors starts to increase, and low NOx control is then implemented. The implement of the low NOx control makes it possible to compensate for the deterioration of the three-way catalyst with respect to NOx purification and to keep NOx emissions from the three-way catalyst equal to or less than the regulation value.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 29, 2006
    Inventors: Kenji Saito, Yoshiaki Higuchi, Hitoshi Kamura
  • Publication number: 20040151915
    Abstract: A transparent molded article comprised of a polymer of the following components (A) and (B), characterized in that said polymer further comprises the following components (C) and (D). A transparent molded article comprised of a polymer of the following components (A) and (B), characterized in that said polymer further comprises the following component (G). An optical member comprising an antireflective layer directly or indirectly on a polyurethane urea polymer substrate, characterized in that said antireflective layer is a multilayer antireflective layer comprising a ½ &lgr; layer, and said ½ &lgr; layer comprises a plural high refractive index layers comprising niobium oxide or niobium oxide, zirconium oxide and yttrium oxide, and a layer comprised of silicon dioxide positioned between the high refractive index layers.
    Type: Application
    Filed: March 5, 2004
    Publication date: August 5, 2004
    Inventors: Yoshitaka Kitahara, Hiroshi Ohta, Masanori Kadota, Takeshi Mitsuishi, Ken-ichi Shinde, Hitoshi Kamura
  • Publication number: 20040146723
    Abstract: The present invention provides an optical member having a plastic substrate and a multilayered antireflection film formed by vapor deposition, wherein at least one layer in the antireflection film is a hybrid layer formed of at least one inorganic substance selected from silicon dioxide, aluminum oxide, titanium oxide, zirconium oxide, tantalum oxide, yttrium oxide, and niobium oxide and an organosilicon compound that is a liquid at normal temperature and at atmospheric pressure and/or an organic compound not containing silicon that is a liquid at normal temperature and at atmospheric pressure as vapor deposition raw materials.
    Type: Application
    Filed: December 24, 2003
    Publication date: July 29, 2004
    Inventors: Takeshi Mitsuishi, Takeshi Imizu, Hiroshi Kojima, Hitoshi Kamura, Ken-ichi Shinde
  • Patent number: 6627320
    Abstract: A method for producing a composition for vapor deposition comprising sintering a vapor source mixture prepared by mixing vapor sources that contain titanium dioxide and niobium pentoxide. The method is capable of forming a high-refraction layer even in low-temperature vapor deposition on a substrate. An antireflection film is formed having good scratch resistance, good chemical resistance and good heat resistance, of which the heat resistance decreases little with time, that is useful in a variety of optical elements.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: September 30, 2003
    Assignee: Hoya Corporation
    Inventors: Takeshi Mitsuishi, Hitoshi Kamura, Kenichi Shinde, Hiroki Takei, Akinori Kobayashi, Yukihiro Takahashi, Yuko Watanabe
  • Patent number: 6606196
    Abstract: An optical element having a plastic substrate and an antireflection film of a &lgr;/4-&lgr;/2-&lgr;/4 or &lgr;/4-&lgr;/4-&lgr;/2-&lgr;/4 type (&lgr;=500 nm) provided in that order on the plastic substrate, wherein the layer of &lgr;/2 is a high-refraction equivalent film containing at least three layers and having a refractive index of from 1.80 to 2.40, and the even-numbered layer(s) of the equivalent film is an SiO2 layer or a layer in which SiO2 is a main component.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: August 12, 2003
    Assignee: Hoya Corporation
    Inventors: Takeshi Mitsuishi, Hitoshi Kamura, Kenichi Shinde
  • Patent number: RE39137
    Abstract: A control apparatus for a cylinder fuel injection internal combustion engine in which a compression stroke injection mode for carrying out fuel injection mainly in a compression stroke and a suction stroke injection mode for carrying out fuel injection mainly in a suction stroke can be selected in accordance with the operational condition of the engine. The apparatus aiming at enabling a suitable suction correcting amount to be set for each operational mode of the engine and the improvement of drivability thereby being improved.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: June 20, 2006
    Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
    Inventors: Hitoshi Kamura, Kenjiro Hatayama, Atsuyoshi Kojima, Hiroki Tamura