HA

Hidehiko Aoki

KK Kawatetsu Kenzai Kogyo Kabushiki Kaisha: 1 patents #1 of 7Top 15%
Overall (1989): #105,812 of 140,708Top 80%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4825617 Fire-resistant open joint structure and its method Ryoji Kinoshita, Keizou Misawa, Hideaki Watanabe, Toshio Kurokawa, Hidefumi Ono 1989-05-02