KY

Keiko Yamagata

YK Yoshida Kogyo K.K.: 2 patents #177 of 468Top 40%
📍 Tateyama, JP: #8 of 24 inventorsTop 35%
Overall (All Time): #2,302,732 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5221375 Corrosion resistant aluminum-based alloy Junichi Nagahora, Kazuo Aikawa, Katsumasa Ohtera, Hideki Takeda 1993-06-22
5122205 Corrosion resistant aluminum-based alloy Tsuyoshi Masumoto, Akihisa Inoue, Junichi Nagahora, Katsumasa Ohtera, Kazuo Aikawa +1 more 1992-06-16