SK

Shigehiro Kayukawa

HI Hitachi: 3 patents #10,712 of 28,497Top 40%
KC Kansai Electric Power Co.: 2 patents #104 of 506Top 25%
Overall (All Time): #1,662,462 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5148093 System for controlling AC excited synchronous machine Akira Bando, Toshio Taguchi, Yasuteru Ohno, Junichi Shiozaki, Junko Shiozaki 1992-09-15
4980629 AC-excited generator/motor apparatus Akira Bando, Osamu Nagura, Junichi Shiozaki, Akira Momiyama, Hiroto Nakagawa +1 more 1990-12-25
4812730 Variable-speed generator/motor system Hiroto Nakagawa, Yasuteru Oono, Tadaatsu Kato, Osamu Nagura, Sadahiko Niwa +1 more 1989-03-14