Patents by Inventor Masaharu Namba

Masaharu Namba 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: 9010298
    Abstract: A general-purpose engine equipped with a rollover detection device for a general-purpose engine that is used for driving a driving unit such as a rammer. An oil pan is provided in a crankcase of an engine main body, and lubricating oil is supplied to a lubrication part of the engine main body by an oil pump. A suction port of a lubricating oil intake part that guides the lubricating oil to an intake port of the oil pump is provided in a substantially central part in front-rear and left-right directions of the oil pan. Therefore, even when the general-purpose engine rolls over in the front-rear or left-right direction, the lubricating oil does not enter the lubricating oil intake part. Detecting whether or not the lubricating oil is discharged from the oil pump allows detection of a rollover of the general-purpose engine.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: April 21, 2015
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Masaharu Namba
  • Patent number: 8865368
    Abstract: A novel electrode that can be used at high temperature in air, a fuel cell using the material, and a method of manufacture of the same are provided. The electrode material containing a component expressed by La1-sAsNi1-x-y-zCuxFeyBzO3-? (wherein, A and B are at least one element independently selected from the group consisting of alkaline earth metals, transition metals excluding Fe, Ni and Cu, and rare earths excluding La, and x>0, y>0, x+y+z<1, 0?s?0.05, and 0?z?0.05) exhibits relatively high conductivity at high temperature, and has the advantage of combination with other materials in relation to coefficient of thermal expansion.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: October 21, 2014
    Assignee: NGK Insulators, Ltd.
    Inventors: Masaharu Namba, Naomi Teratani, Yoshihiko Yamamura, Kazuyuki Matsuda, Naomi Fukui
  • Publication number: 20110253093
    Abstract: A general-purpose engine equipped with a rollover detection device for a general-purpose engine is used for driving a driving unit such as a rammer. An oil pan is provided in a crankcase of an engine main body, and lubricating oil is supplied to a lubrication part of the engine main body by an oil pump. A suction port of a lubricating oil intake part that guides the lubricating oil to an intake port of the oil pump is provided in a substantially central part in front-rear and left-right directions of the oil pan. Therefore, even when the general-purpose engine rolls over in the front-rear or left-right direction, the lubricating oil does not enter the lubricating oil intake part. Detecting whether or not the lubricating oil is discharged from the oil pump allows detection of a rollover of the general-purpose engine.
    Type: Application
    Filed: April 11, 2011
    Publication date: October 20, 2011
    Applicant: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Masaharu NAMBA
  • Publication number: 20110236789
    Abstract: A novel electrode that can be used at high temperature in air, a fuel cell using the material, and a method of manufacture of the same are provided. The electrode material containing a component expressed by La1-sAsNi1-x-y-zCuxFeyBzO3-? (wherein, A and B are at least one element independently selected from the group consisting of alkaline earth metals, transition metals excluding Fe, Ni and Cu, and rare earths excluding La, and x>0, y>0, x+y+z<1, 0?s?0.05, and 0?z?0.05) exhibits relatively high conductivity at high temperature, and has the advantage of combination with other materials in relation to coefficient of thermal expansion.
    Type: Application
    Filed: March 24, 2011
    Publication date: September 29, 2011
    Applicant: NGK Insulators, Ltd.
    Inventors: Masaharu NAMBA, Naomi Teratani, Yoshihiko Yamamura, Kazuyuki Matsuda, Naomi Fukui
  • Patent number: 7767116
    Abstract: 12CaO.7Al2O3 polycrystal having high conductivity is provided. The conductivity of the 12CaO.7Al2O3 polycrystal becomes 100 S/cm or more by controlling the nitrogen content in the 12CaO.7Al2O3 polycrystal within a range of 0.3 to 1.1 wt %, and that the conductivity becomes 150 S/cm or more by controlling the nitrogen content within a range of 0.5 to 0.9 wt %.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: August 3, 2010
    Assignee: NGK Insulators, Ltd.
    Inventors: Masaharu Namba, Kiyoshi Araki, Naoyuki Ogawa
  • Publication number: 20090075811
    Abstract: 12CaO.7Al2O3 polycrystal having high conductivity is provided. It has become obvious that the conductivity of the 12CaO.7Al2O3 polycrystal becomes 100 [S/cm] or more by controlling a nitrogen content in the 12CaO.7Al2O3 polycrystal within a range of 0.3 to 1.1 [wt %], and that the conductivity becomes 150 [S/cm] or more by controlling the nitrogen content within a range of 0.5 to 0.9 [wt %].
    Type: Application
    Filed: June 16, 2008
    Publication date: March 19, 2009
    Applicant: NGK Insulators, Ltd.
    Inventors: Masaharu Namba, Kiyoshi Araki, Naoyuki Ogawa
  • Patent number: 4522904
    Abstract: In the specific embodiments described herein, the charge drop resulting from fatigue in an electrophotographic process using an a-Se:H photosensitive member is reduced by a stabilization exposure carried out for one to three cycles prior to use of the member for image formation. Longer wavelength light may be used for the stabilization exposure and shorter wavelength light may be used for the imaging and discharge steps.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: June 11, 1985
    Assignees: Fuji Electric Company, Ltd., Fuji Electric Corporate Research & Development, Ltd.
    Inventors: Hideki Kina, Toshiyuji Iijima, Eizo Tanabe, Toyoki Kazama, Masaharu Namba
  • Patent number: 4452828
    Abstract: Disclosed is an production method for plasma chemical vapor deposition (CVD) of amorphous silicon films providing improved throughput and film yield. According to the present invention, a glow discharge is generated in a reaction chamber containing a gaseous silicon-containing compound, such as monosilane (SiH.sub.4) or tetraflourosilane (SiF.sub.4), by the imposition of an electric field between a pair of spaced-apart electrodes within the chamber. The electric field is established by connecting an appropriate DC or high frequency driving voltage to one of the pair of electrodes and ground potential to the other. In the case where a high frequency driving voltage is used, connection to the driven electrode is made through a coupling capacitor, and the frequency of the driving voltage is selected such that a DC potential develops between the pair of electrodes.
    Type: Grant
    Filed: May 10, 1982
    Date of Patent: June 5, 1984
    Assignee: Fuji Electric Company, Ltd.
    Inventors: Masaharu Namba, Mitsuru Yamauchi, Toyoki Kazama
  • Patent number: 4038217
    Abstract: A ceramic having non-linear voltage characteristics, comprising the product obtained on mixing (a) zinc oxide, as a principal component, and (b) (1) cobalt and (2) one of neodymium, samarium or dysprosium, either in an elemental form or as a compound thereof, each in an amount of 0.1 to 10 atomic % for the cobalt, neodymium, samarium and dysprosium, calculated as cobalt, neodymium, samarium and dysprosium as subcomponents, and calcining the mixture at a temperature of from about 1150.degree. to about 1400.degree. C.
    Type: Grant
    Filed: July 24, 1975
    Date of Patent: July 26, 1977
    Assignee: Fuji Electric Company Ltd.
    Inventors: Masaharu Namba, Ikuo Nagasawa, Kazuo Mukae