TO

Toyoji Okuwaki

HI Hitachi: 6 patents #6,582 of 28,497Top 25%
HM Hitachi Maxell: 1 patents #659 of 1,211Top 55%
📍 Okutama, JP: #18 of 50 inventorsTop 40%
Overall (All Time): #889,033 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5686177 Magnetic recording medium Kazusuke Yamanaka, Hideo Kusada 1997-11-11
5285343 Magnetic disk with surface protective layer having convex portions and magnetic disk apparatus including such a magnetic disk Hideaki Tanaka, Kenichi Gomi, Shoichi Sawahata, Maki Kondo, Masaki Ohura +6 more 1994-02-08
5060098 Magnetic recorder provided with a magnetic head slider having a non-magnetic oxide of spinel structure Akihiro Gotoh, Shinsuke Higuchi, Takeshi Miyazaki, Kunihiro Maeda, Yokuo Saitoh +2 more 1991-10-22
5020041 Magneto-optical memory apparatus having a floating magnetic head Takeshi Nakao, Masahiro Ojima, Yoshinori Miyamura, Youichi Kawakubo, Yoshinori Takeuchi +1 more 1991-05-28
4840844 Magnetic recording medium Masaaki Futamoto, Yukio Honda, Shinichiro Saito, Takashi Nishimura, Kazuetsu Yoshida +6 more 1989-06-20
4651242 Magnetic disk apparatus Yoshiyuki Hirano, Yosuke Seo, Katsuhiko Kato, Takashi Tamura 1987-03-17