Patents by Inventor Shota Kitano

Shota Kitano 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: 9627137
    Abstract: A multilayer ceramic capacitor includes a multilayer unit, thickness-direction first and second outer layer sections, length-direction first and second outer layer sections, and width-direction first and second outer layer sections. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. The thickness-direction second outer layer section includes an inner portion and an outer portion. A composition ratio of Si to Ti in a ceramic dielectric layer included in the outer portion is higher than that in the inner portion. A boundary portion between the outer portion and the inner portion has a larger Si content than the outer portion. The inner portion has a higher composition ratio of Mn to Ti than the outer portion.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: April 18, 2017
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shota Kitano, Takanobu Katsuyama, Hiroaki Sugita
  • Patent number: 9620287
    Abstract: A multilayer ceramic capacitor includes a multilayer unit, thickness-direction first and second outer layer sections, and length-direction first and second outer layer sections. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. The thickness-direction second outer layer section includes an inner portion and an outer portion. A composition ratio of Si to Ti in a ceramic dielectric layer included in the outer portion is higher than that in the inner portion. A Si content ratio is higher in a boundary portion between the outer portion and the inner portion. The inner portion has a higher composition ratio of Mn to Ti than the outer portion. Both of minimum dimensions in the length direction of the length-direction first and second outer layer sections are greater than a dimension in the thickness direction of the thickness-direction first outer layer section.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: April 11, 2017
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shota Kitano, Takanobu Katsuyama, Hiroaki Sugita
  • Patent number: 9449760
    Abstract: A multilayer ceramic capacitor includes a multilayer unit, thickness-direction first and second outer layer sections, and length-direction first and second outer layer sections. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. The thickness-direction second outer layer section includes an inner portion and an outer portion. A composition ratio of Si to Ti in a ceramic dielectric layer included in the outer portion is higher than that in the inner portion. A Si content ratio is higher in a boundary portion between the outer portion and the inner portion. A relationship expressed by T1/(L0?L1)?5.98 is satisfied when a minimum dimension in the length direction of the body is denoted by L0, a minimum dimension in the thickness direction of the multilayer unit is denoted by T1, and a minimum dimension in the length direction of the multilayer unit is denoted by L1.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: September 20, 2016
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shota Kitano, Takanobu Katsuyama, Hiroaki Sugita
  • Publication number: 20160049254
    Abstract: A multilayer body includes an inner layer portion having a dimension in a stacking direction greater than a dimension of the inner layer portion in a width direction, a second outer layer portion including an outer portion including a second principle surface and an inner portion disposed adjacent to both of the outer portion and the inner layer portion, a dimension of the outer portion in the stacking direction being greater than a dimension of the inner portion, and a composition ratio of Si relative to Ti in the outer portion is greater than that in the inner portion.
    Type: Application
    Filed: August 11, 2015
    Publication date: February 18, 2016
    Inventors: Hiroaki SUGITA, Shota KITANO
  • Publication number: 20160049246
    Abstract: A multilayer ceramic capacitor includes a multilayer unit, thickness-direction first and second outer layer sections, and length-direction first and second outer layer sections. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. The thickness-direction second outer layer section includes an inner portion and an outer portion. A composition ratio of Si to Ti in a ceramic dielectric layer included in the outer portion is higher than that in the inner portion. A Si content ratio is higher in a boundary portion between the outer portion and the inner portion. The inner portion has a higher composition ratio of Mn to Ti than the outer portion. Both of minimum dimensions in the length direction of the length-direction first and second outer layer sections are greater than a dimension in the thickness direction of the thickness-direction first outer layer section.
    Type: Application
    Filed: March 12, 2015
    Publication date: February 18, 2016
    Inventors: Shota KITANO, Takanobu KATSUYAMA, Hiroaki SUGITA
  • Publication number: 20160049244
    Abstract: A multilayer ceramic capacitor includes a multilayer unit, thickness-direction first and second outer layer sections, and length-direction first and second outer layer sections. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. The thickness-direction second outer layer section includes an inner portion and an outer portion. A composition ratio of Si to Ti in a ceramic dielectric layer included in the outer portion is higher than that in the inner portion. A Si content ratio is higher in a boundary portion between the outer portion and the inner portion. A relationship expressed by T1/(L0?L1)?5.98 is satisfied when a minimum dimension in the length direction of the body is denoted by L0, a minimum dimension in the thickness direction of the multilayer unit is denoted by T1, and a minimum dimension in the length direction of the multilayer unit is denoted by L1.
    Type: Application
    Filed: March 12, 2015
    Publication date: February 18, 2016
    Inventors: Shota KITANO, Takanobu KATSUYAMA, Hiroaki SUGITA
  • Publication number: 20160049255
    Abstract: A multilayer ceramic capacitor includes a body and at least two outer electrodes. The body includes first and second main surfaces, an inner layer portion and first and second outer layer portions. In the inner layer portion, dielectric layers and conductive layers are alternately stacked on each other. The second outer layer portion includes an outer portion and an inner portion. A boundary region adjacent to the inner portion in the outer portion inclines toward the first main surface.
    Type: Application
    Filed: August 11, 2015
    Publication date: February 18, 2016
    Inventors: Hiroaki SUGITA, Shota KITANO
  • Publication number: 20160049256
    Abstract: A body of a multilayer ceramic capacitor includes an inner layer portion and first and second outer layer portions sandwiching the inner layer portion therebetween. The inner layer portion includes an area extending from a conductive layer positioned closest to a first main surface to a conductive layer positioned closest to a second main surface in the stacking direction. The height of the body is smaller than the width of the body. The height of the inner layer portion is smaller than the width of the inner layer portion. The first outer layer portion includes a dielectric layer positioned closest to the first main surface. The second outer layer portion includes a dielectric layer positioned closest to the second main surface, and is thicker than the first outer layer portion. The total height of the first and second outer layer portions is smaller than the height of the inner layer portion.
    Type: Application
    Filed: August 11, 2015
    Publication date: February 18, 2016
    Inventors: Shota KITANO, Takanobu KATSUYAMA, Hiroaki SUGITA
  • Publication number: 20160049245
    Abstract: A multilayer ceramic capacitor includes a multilayer unit, thickness-direction first and second outer layer sections, length-direction first and second outer layer sections, and width-direction first and second outer layer sections. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. The thickness-direction second outer layer section includes an inner portion and an outer portion. A composition ratio of Si to Ti in a ceramic dielectric layer included in the outer portion is higher than that in the inner portion. A boundary portion between the outer portion and the inner portion has a larger Si content than the outer portion. The inner portion has a higher composition ratio of Mn to Ti than the outer portion.
    Type: Application
    Filed: March 12, 2015
    Publication date: February 18, 2016
    Inventors: Shota KITANO, Takanobu KATSUYAMA, Hiroaki SUGITA
  • Publication number: 20160049247
    Abstract: A multilayer ceramic capacitor includes a multilayer unit, thickness-direction first and second outer layer sections, and width-direction first and second outer layer sections. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. The thickness-direction second outer layer section includes an inner portion and an outer portion. A composition ratio of Si to Ti in a ceramic dielectric layer included in the outer portion is higher than that in the inner portion. A Si content ratio is higher in a boundary portion between the outer portion and the inner portion. A relationship expressed by T1/(W0?W1)?6.95 is satisfied when a minimum dimension in the width direction of the body is denoted by W0, a minimum dimension in the thickness direction of the multilayer unit is denoted by T1, and a minimum dimension in the width direction of the multilayer unit is denoted by W1.
    Type: Application
    Filed: March 12, 2015
    Publication date: February 18, 2016
    Inventors: Shota KITANO, Takanobu KATSUYAMA, Hiroaki SUGITA
  • Patent number: 9099247
    Abstract: A multilayer ceramic capacitor includes a body including a multilayer unit with ceramic dielectric layers and conductive layers alternately stacked on each other. The body includes a thickness-direction inner layer section including the multilayer unit and thickness-direction first and second outer layer sections that sandwich the thickness-direction inner layer section therebetween. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. A width of a second outermost conductive layer closest to a second principal surface of the body is smaller than a width of a central conductive layer closest to a center of the multilayer unit in the thickness direction.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: August 4, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shota Kitano, Hiroaki Sugita, Mayumi Yamada
  • Patent number: 9099246
    Abstract: A multilayer ceramic capacitor includes a body and first and second outer electrodes. The body includes a multilayer unit with ceramic dielectric layers and conductive layers alternately stacked on each other. The body is sectioned into a thickness-direction inner layer section that includes the multilayer unit and thickness-direction first and second outer layer sections that sandwich the thickness-direction inner layer section therebetween. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. A conductive layer closest to a first principal surface and a conductive layer closest to a second principal surface are first and second outermost conductive layers, respectively. A curving amount of an extension portion of the second outermost conductive layer is greater than that of an extension portion of the first outermost conductive layer.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: August 4, 2015
    Assignee: Murata Manufacturing Co. Ltd.
    Inventors: Shota Kitano, Hiroaki Sugita, Mayumi Yamada, Hirobumi Adachi
  • Patent number: 9093220
    Abstract: A multilayer ceramic capacitor includes a multilayer unit, thickness-direction first and second outer layer sections, and width-direction first and second outer layer sections. A dimension of the thickness-direction second outer layer section is greater than a dimension of the thickness-direction first outer layer section. The thickness-direction second outer layer section includes an inner portion and an outer portion. A composition ratio of Si to Ti in a ceramic dielectric layer included in the outer portion is higher than that in the inner portion. A Si content ratio is higher in a boundary portion between the outer portion and the inner portion. A thickness dimension of the multilayer unit is greater than a width dimension thereof, and width dimensions of the width-direction first and second outer layer sections are greater than a thickness dimension of the thickness-direction first outer layer section.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: July 28, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shota Kitano, Takanobu Katsuyama, Hiroaki Sugita
  • Patent number: 9064636
    Abstract: A multilayer body includes an inner layer portion, and a first outer layer portion and a second outer layer portion with the inner layer portion therebetween. The inner layer portion includes a conductive layer arranged closest to a first principle surface side to a conductive layer arranged closest to a second principle surface side in a stacking direction. The first outer layer portion includes a first dielectric layer arranged closest to the first principle surface side. The second outer layer portion includes an outer portion including a second dielectric layer arranged closest to the second principle surface side and an inner portion including a first dielectric layer arranged next to the outer portion at the first principle surface side.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: June 23, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiroaki Sugita, Shota Kitano
  • Patent number: 8892337
    Abstract: An apparatus for detecting imbalance abnormality in an air-fuel ratio between cylinders in a multi-cylinder internal combustion engine according to the present invention increases a fuel injection quantity to a predetermined target cylinder to detect imbalance abnormality in an air-fuel ratio between cylinders at least based upon a rotation variation of the target cylinder after increasing the fuel injection quantity. The increase in the fuel injection quantity is carried out in the middle of performing the post-fuel-cut rich control. Since timing of the post-fuel cut rich control is used to increase the fuel injection quantity, the exhaust emission deterioration due to abnormality detection execution can be prevented as much as possible.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: November 18, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shota Kitano, Hitoshi Tanaka, Isao Nakajima, Yoshihisa Oda, Masashi Hakariya, Kiyotaka Kushihama, Kazuyuki Noda, Akihiro Katayama, Yuichi Kohara, Katsumi Adachi
  • Patent number: 8620564
    Abstract: An abnormality detection apparatus for a multi-cylinder internal combustion engine changes a fuel injection quantity of a predetermined target cylinder to detect an abnormality of an internal combustion engine based on values of rotational variations relating to the target cylinder detected before and after the change of the fuel injection quantity. The abnormality detection apparatus corrects the values of the rotational variations relating to the target cylinder detected before and after the change of the fuel injection quantity based on at least one of the number of revolutions of the engine and an engine load at a corresponding detection time.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: December 31, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masashi Hakariya, Isao Nakajima, Yoshihisa Oda, Hitoshi Tanaka, Kiyotaka Kushihama, Shota Kitano, Kazuyuki Noda, Katsumi Adachi, Yuichi Kohara, Akihiro Katayama
  • Publication number: 20120303248
    Abstract: An abnormality detection apparatus for a multi-cylinder internal combustion engine changes a fuel injection quantity of a predetermined target cylinder to detect an abnormality of an internal combustion engine based on values of rotational variations relating to the target cylinder detected before and after the change of the fuel injection quantity. The abnormality detection apparatus corrects the values of the rotational variations relating to the target cylinder detected before and after the change of the fuel injection quantity based on at least one of the number of revolutions of the engine and an engine load at a corresponding detection time.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 29, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masashi Hakariya, Isao Nakajima, Yoshihisa Oda, Hitoshi Tanaka, Kiyotaka Kushihama, Shota Kitano, Kazuyuki Noda, Katsumi Adachi, Yuichi Kohara, Akihiro Katayama
  • Publication number: 20120253642
    Abstract: An apparatus for detecting imbalance abnormality in an air-fuel ratio between cylinders in a multi-cylinder internal combustion engine according to the present invention increases a fuel injection quantity to a predetermined target cylinder to detect imbalance abnormality in an air-fuel ratio between cylinders at least based upon a rotation variation of the target cylinder after increasing the fuel injection quantity. The increase in the fuel injection quantity is carried out in the middle of performing the post-fuel-cut rich control. Since timing of the post-fuel cut rich control is used to increase the fuel injection quantity, the exhaust emission deterioration due to abnormality detection execution can be prevented as much as possible.
    Type: Application
    Filed: March 28, 2011
    Publication date: October 4, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shota Kitano, Hitoshi Tanaka, Isao Nakajima, Yoshihisa Oda, Masashi Hakariya, Kiyotaka Kushihama, Kazuyuki Noda, Akihiro Katayama, Yuichi Kohara, Katsumi Adachi