KY

Kunihiko Yamaguchi

HI Hitachi: 1 patents #814 of 2,935Top 30%
NC Nippon Light Metal Company: 1 patents #1 of 20Top 5%
MC Mitsubishi Chemical: 1 patents #25 of 161Top 20%
Overall (1989): #21,709 of 140,708Top 20%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4865823 Method for recovering gallium Yukinori Minagawa, Minoru Tanaka, Kazumasa Arai, Gouichi Muramatsu 1989-09-12
4809052 Semiconductor memory device Yasushiro Nishioka, Takeo Shiba, Hiroshi Shinriki, Kiichiro Mukai, Akihisa Uchida +4 more 1989-02-28