YO

Yoshimasa Okubo

Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%
SI Sumitomo Light Metal Industries: 1 patents #103 of 254Top 45%
Overall (All Time): #2,249,187 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5902546 Aluminum alloy impeller and manufacturing method of the same Nozomu Kawasetsu, Masatomo Shinohara, Kouichiro Imakiire, Masanori Kimura, Keiichi Shiraishi +3 more 1999-05-11
4992117 Heat resistant aluminum alloy excellent in tensile strength, ductility and fatigue strength Kazuhisa Shibue, Hideo Yoshida 1991-02-12