HK

Hiroo Konishi

HI Hitachi: 10 patents #4,206 of 28,497Top 15%
Overall (All Time): #526,568 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
5710492 Apparatus for monitoring and stabilizing power swing in a power system by utilizing a power electronics technique Masahiko Amano, Masahiro Watanabe, Masashi Nishimura 1998-01-20
5703791 Electric power system stabilization control apparatus and method thereof Masahiko Amano, Masahiro Watanabe, Shinya Tanifuji, Tomoharu Nakamura 1997-12-30
5535113 Control equipment for high voltage direct current transmission system with equipment of self-commutated converter 1996-07-09
5396411 Power conversion system, and a method of power conversion using such a power conversion system Masahiko Amano, Masahiro Watanabe 1995-03-07
5349522 Method and apparatus for controlling the output voltage of an AC electrical system Hironari Kawazoe, Junzo Kawakami, Tomoharu Nakamura, Yukio Tokiwa, Tatsuhito Nakajima 1994-09-20
4897593 Reactive power compensator for electric power system Yasuo Matsuda 1990-01-30
4441032 Converter control apparatus for parallel connected multi-terminal direct current system Takeichi Sakurai, Kiyoshi Goto, Tadao Kawai 1984-04-03
4330815 DC Transmission control system 1982-05-18
4264951 DC Power transmission control Hisao Amano 1981-04-28
4263517 Control method and system for an high voltage direct current system 1981-04-21