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NIPPON OXYGEN CO LTD

Overview
  • Total Patents
    2,739
About

NIPPON OXYGEN CO LTD has a total of 2,739 patent applications. Its first patent ever was published in 1963. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets chemical engineering, furniture and games and machines are BOC GROUP PLC, FLUOR TECH CORP and L'AIR LIQUIDE.

Patent filings per year

Chart showing NIPPON OXYGEN CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yamada Masashi 183
#2 Ito Seiichi 118
#3 Fujii Takafumi 105
#4 Honda Hideyuki 102
#5 Komiya Yasuhiko 96
#6 Ishihara Yoshio 96
#7 Kimijima Tetsuya 91
#8 Sugimori Yoshiaki 88
#9 Tanaka Atsuhiko 87
#10 Goto Toru 76

Latest patents

Publication Filing date Title
JP2004294446A Apparatus for analyzing trace amount of impurity in gas
JP2004271534A Space environment testing device
JP2004298963A Tig welding equipment and method
WO2004078325A1 Method for concentrating oxygen isotope
TW200510105A TIG welding apparatus and TIG welding method
JP2004276116A Molten metal processing agent and molton metal processing method
JP2004125168A Supply method and carrying vehicle for medical treatment liquefied oxygen
JP2004093110A Burner lance and refine method
JP2004339187A Method for purification and film-forming of perfluoro-compound
JP2005003009A Magnetic bearing mechanism, and expansion turbine
JP2004354332A Enrichment analyzer and method for enrichment analysis
JP2004351434A Welding apparatus and welding method
JP2004345881A Argon purification apparatus and its operation method
JP2004344694A Method for purifying original air in air liquefying/separating apparatus
JP2004310687A Monitoring system and monitoring method
JP2003277310A METHOD FOR PRODUCING HIGHLY PURE beta-DIKETONATE COMPLEX OF ALKALINE-EARTH METAL AND HIGHLY PURE beta-DIKETONATE COMPLEX FOR FORMING THIN FILM BY CHEMICAL VAPOR DEPOSITION METHOD
JP2004309264A Cryogenic liquefied gas surface level detecting sensor
JP2004310318A Html editing method for displaying evaluation in question-reply-evaluation system constituted by html
JP2004298944A Shielding gas for welding and welding method
JP2004062860A System, method and program for remote monitoring operation