Patents by Inventor Tomoaki Shinma

Tomoaki Shinma 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).

  • Exhaust gas sensor
    Patent number: 9528961
    Abstract: An exhaust gas sensor (100; 200) is configured so as to detect an oxygen concentration or air-fuel ratio in exhaust gas. The exhaust gas sensor includes a sensor element (10) and a manganese reaction layer (20). The sensor element detects an oxygen concentration or air-fuel ratio. The manganese reaction layer is formed on at least part of a surface of the sensor element and is formed of a substance containing an element capable of generating a complex oxide having manganese through reaction with a manganese oxide in the exhaust gas. The exhaust gas sensor is configured to detect an oxygen concentration or air-fuel ratio in exhaust gas of an internal combustion engine that utilizes a fuel having a Mn concentration in excess of 20 ppm.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: December 27, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro Miwa, Sumio Kamiya, Hirotaka Sakakibara, Tomoaki Shinma
  • Exhaust gas sensor
    Patent number: 9297779
    Abstract: An exhaust gas sensor (100) is configured to detect an oxygen concentration or air-fuel ratio in exhaust gas of an internal combustion engine. The exhaust gas sensor includes a sensor element (10) and a glass coating film (20). The sensor element is configured to detect an oxygen concentration or air-fuel ratio in the exhaust gas sensor. The glass coating film (20) is formed on at least part of a surface of the sensor element and capable of absorbing a Mn component contained in the exhaust gas at 700° C. The internal combustion engine uses a fuel having a Mn concentration in excess of 20 ppm.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: March 29, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro Miwa, Sumio Kamiya, Hirotaka Sakakibara, Tomoaki Shinma
  • EXHAUST GAS SENSOR
    Publication number: 20150153304
    Abstract: An exhaust gas sensor (100) is configured to detect an oxygen concentration or air-fuel ratio in exhaust gas of an internal combustion engine. The exhaust gas sensor includes a sensor element (10) and a glass coating film (20). The sensor element is configured to detect an oxygen concentration or air-fuel ratio in the exhaust gas sensor. The glass coating film (20) is formed on at least part of a surface of the sensor element and capable of absorbing a Mn component contained in the exhaust gas at 700° C. The internal combustion engine uses a fuel having a Mn concentration in excess of 20 ppm.
    Type: Application
    Filed: July 24, 2013
    Publication date: June 4, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro Miwa, Sumio Kamiya, Hirotaka Sakakibara, Tomoaki Shinma
  • EXHAUST GAS SENSOR
    Publication number: 20150144487
    Abstract: An exhaust gas sensor (100; 200) is configured so as to detect an oxygen concentration or air-fuel ratio in exhaust gas. The exhaust gas sensor includes a sensor element (10) and a manganese reaction layer (20). The sensor element detects an oxygen concentration or air-fuel ratio. The manganese reaction layer is formed on at least part of a surface of the sensor element and is formed of a substance containing an element capable of generating a complex oxide having manganese through reaction with a manganese oxide in the exhaust gas. The exhaust gas sensor is configured to detect an oxygen concentration or air-fuel ratio in exhaust gas of an internal combustion engine that utilizes a fuel having a Mn concentration in excess of 20 ppm.
    Type: Application
    Filed: July 24, 2013
    Publication date: May 28, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomohiro Miwa, Sumio Kamiya, Hirotaka Sakakibara, Tomoaki Shinma