Patents by Inventor Mitsunori Oi

Mitsunori Oi 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: 8256956
    Abstract: A temperature sensor including a temperature sensing element (102) having a temperature sensing unit (103) and a pair of device electrode wires (104) extending from the temperature sensing unit; a sheath member (106) including a sheath wire (108) connected at a junction (110) to one of the device electrode wires and a sheath outer pipe (107) retaining the sheath wire in an insulating material (114); an inner tube (112) which has a bottomed cylindrical shape, the inner tube accommodating the temperature sensing element and the junction in a bottom portion side of the inner tube serving as a leading end of the temperature sensor, and extending in an extension direction of the device electrode wire and the sheath wire; and an outer tube (120) which has a bottomed cylindrical shape including a gas inlet hole (122a, 122b, 122c), the outer tube covering the inner tube, and being spaced, from the inner tube on a leading end side of the junction when viewed in a direction perpendicular to an axial direction of the in
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: September 4, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Tatsuya Suzuki, Mitsunori Oi, Takashi Maeda, Norimichi Saito, Toshinori Nishi, Go Hanzawa, Takeshi Morita
  • Patent number: 8192081
    Abstract: A temperature sensor including: a temperature sensing element (102) having a temperature sensing unit (103) and a pair of device electrode wires (104); a sheath member (106) having a sheath wire (108) connected at a junction (110) to at least one of the device electrode wires and a sheath outer pipe (107) retaining the sheath wire in an insulating material (114); an inner tube (112) which has a bottomed cylindrical shape; and a cylindrical outer tube (120) having an open end, covering the inner tube such that the open end is located at a front end side of the junction and in a region to the rear end side of or aligned with the front end of the inner tube, and being spaced from the inner tube at the front end side of the junction.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: June 5, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Tatsuya Suzuki, Mitsunori Oi, Takashi Maeda, Norimichi Saito, Toshinori Nishi, Go Hanzawa, Takeshi Morita
  • Patent number: 8182145
    Abstract: A temperature sensor including a temperature sensing element (102) having a temperature sensing unit (103) and a pair of device electrode wires (104) extending from the temperature sensing unit; a sheath member (106) including a sheath wire (108) connected at a junction (110) to one of the device electrode wires and a sheath outer pipe (107) retaining the sheath wire in an insulating material (114); an inner tube (112) which has a bottomed cylindrical shape, the inner tube accommodating the temperature sensing element and the junction in a bottom portion side of the inner tube serving as a leading end of the temperature sensor, and extending in an extension direction of the device electrode wire and the sheath wire; and an outer tube (120) which has a bottomed cylindrical shape including a gas inlet hole (122a, 122b, 122c), the outer tube covering the inner tube, and being spaced, from the inner tube on a leading end side of the junction when viewed in a direction perpendicular to an axial direction of the in
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: May 22, 2012
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Tatsuya Suzuki, Mitsunori Oi, Takashi Maeda, Norimichi Saito, Toshinori Nishi, Go Hanzawa, Takeshi Morita
  • Publication number: 20090279586
    Abstract: A temperature sensor including a temperature sensing element (102) having a temperature sensing unit (103) and a pair of device electrode wires (104) extending from the temperature sensing unit; a sheath member (106) including a sheath wire (108) connected at a junction (110) to one of the device electrode wires and a sheath outer pipe (107) retaining the sheath wire in an insulating material (114); an inner tube (112) which has a bottomed cylindrical shape, the inner tube accommodating the temperature sensing element and the junction in a bottom portion side of the inner tube serving as a leading end of the temperature sensor, and extending in an extension direction of the device electrode wire and the sheath wire; and an outer tube (120) which has a bottomed cylindrical shape including a gas inlet hole (122a, 122b, 122c), the outer tube covering the inner tube, and being spaced, from the inner tube on a leading end side of the junction when viewed in a direction perpendicular to an axial direction of the in
    Type: Application
    Filed: May 8, 2009
    Publication date: November 12, 2009
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Tatsuya SUZUKI, Mitsunori OI, Takashi MAEDA, Norimichi SAITO, Toshinori NISHI, Go HANZAWA, Takeshi MORITA
  • Publication number: 20090279585
    Abstract: A temperature sensor including: a temperature sensing element (102) having a temperature sensing unit (103) and a pair of device electrode wires (104); a sheath member (106) having a sheath wire (108) connected at a junction (110) to at least one of the device electrode wires and a sheath outer pipe (107) retaining the sheath wire in an insulating material (114); an inner tube (112) which has a bottomed cylindrical shape; and a cylindrical outer tube (120) having an open end, covering the inner tube such that the open end is located at a front end side of the junction and in a region to the rear end side of or aligned with the front end of the inner tube, and being spaced from the inner tube at the front end side of the junction.
    Type: Application
    Filed: May 8, 2009
    Publication date: November 12, 2009
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Takeshi MORITA, Go HANZAWA, Tetsuya SUZUKI, Mitsunori OI
  • Patent number: 6346179
    Abstract: A gas sensor including a detection element having a front-end portion, a detection portion formed at the front-end portion of the detection element, and a protector that covers the detection portion. The protector includes a first portion having a first sidewall and a second portion having a second sidewall disposed outside the first portion. The first sidewall has an axial front end and a tapering portion. The tapering portion is formed from the axial front end of the first sidewall. The side portion has a front-end surface provided with a first gas outlet, and the second portion has a front-end surface provided with a second gas outlet. Furthermore, at least one gas inlet is formed to the sidewall of the second portion opposite the tapering portion, and plural gas inlets are formed on the sidewall of the first portion.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: February 12, 2002
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Keisuke Makino, Shinya Awano, Mitsunori Oi, Takashi Nakao, Teppei Okawa