KN

Keizo Namba

SI Sumitomo Light Metal Industries: 5 patents #20 of 254Top 8%
SI Sumitomo Metal Industries: 1 patents #630 of 1,462Top 45%
Overall (All Time): #1,056,263 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5391854 Method of spot welding aluminum alloys Hiromichi Sano, Masaki Kumagai, Koichi Maeda 1995-02-21
5356723 Multilayer plated aluminum sheets Masanari Kimoto, Tetsuaki Tsuda, Masanori Tsuji, Yoshihiko Hoboh, Hiroshi Ikeda +3 more 1994-10-18
5334814 Electrode for spot welding Tadashi Nosetani, Hiromichi Sano, Makoto Yonemitsu, Masaki Kumagai, Masanori Tsunekawa 1994-08-02
5069980 Vacuum-brazing aluminum cladding material consisting of Al or Al alloy core and two superposed aluminum alloy clads which cover at least one surface of the core Yasunaga Itoh, Hiroshi Nakanishi 1991-12-03
4949895 Process of fixing internally titanium-lined doubled-walled tubing structure to titanium tube sheet Yoshihiko Sugiyama, Tadashi Nosetani, Hiromiti Sano 1990-08-21