Oblon, Fisher, Spivak, McClelland & Maier
Method of analyzing nitrogen contained in titanium group metal or alloy thereof
 A method of quantitatively analyzing nitrogen contained in titanium group metal or an alloy thereof, involving melting the metal or alloy in an inert gas atmosphere, allowing the nitrogen in titanium to be extracted and subjecting the extracted nitrogen to a quantitative analysis, characterized in that a titanium sample for analysis is melted in the present of nickel in an amount corresponding to 7 to 16 times the weight of the sample. 
Kabushiki Kaisha Kobe Seiko Sho
G G
G01N G01N
inventional inventional
Masami Hiromi Masayoshi Kiyoshi Hiromichi
Tomimoto Umeda Okamura Matsuda Yamada