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OSAKA OXYGEN IND

Overview
  • Total Patents
    278
About

OSAKA OXYGEN IND has a total of 278 patent applications. Its first patent ever was published in 1970. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets measurement, environmental technology and chemical engineering are SOFRANCE SA, PECOFACET US INC and ARGO HYTOS GMBH.

Patent filings per year

Chart showing OSAKA OXYGEN INDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kijima Takahiko 40
#2 Hayashi Shigeki 30
#3 Makihara Akira 27
#4 Nakahara Yoshiyuki 23
#5 Ohmi Tadahiro 23
#6 Nakamura Masakazu 16
#7 Kikuchi Shigeru 15
#8 Nagatsuka Toshio 15
#9 Sakanaka Takashi 14
#10 Matsumoto Yoshiro 14

Latest patents

Publication Filing date Title
JP2002181797A Analytical method for impurities in organometallic compound
JP2002148155A Molten metal sample collection device, its method, and gas supplying device for sample collection probe
JP2002066310A Fractionator provided with highly efficient material exchange performance
JP2002066574A Method for treating waste water discharged from pulp manufacturing process
JP2001353420A Recovery of specific material gas for semiconductor from exhaust gas generated from apparatus for producing compound semiconductor
JP2001226760A Method of forming oxide passivation film composed essentially of chromium oxide, and stainless steel
JP2001165924A Method and apparatus for measuring concentration of fluorine in fluorine-containing mixed gas
JP2001012721A Combustion apparatus for furnace
JP2001012720A Combustion apparatus of powder melting furnace
JP2000185854A Drying device having web meandering modification mechanism
JP2000171457A Complex probe for sample collection
JP2000096133A Heat treatment device and heat treatment method
JP2000009850A Detecting coil for molten metal level detecting apparatus
JPH11293482A Method for passivating rust-free stainless steel
JPH11302013A High purity ammonia used for compound semiconductor device
JPH10212564A Stainless steel having oxidized passive coating and its formation
JPH10232087A Method and system for supplying dry air
JPH11132661A Seal device for treated matter penetrating part of wall surface of drying furnace
JPH1194459A Air separator
JPH1194458A Air separator