Granted Patent
Utility
US 5,956,231 · App. 08/539,075
Semiconductor device having power semiconductor elements
Inventors:
Kazuji Yamada, Akira Tanaka, Ryuichi Saito, Yasutoshi Kurihara, Tadao Kushima, Takashi Haramaki, Yoshihiko Koike, Takashi Hosokawa, Mamoru Sawahata, Masahiro Koizumi, Jin Onuki, Kazuhiro Suzuki, Isao Kobayashi, Hideo Shimizu, Yutaka Higashimura, Shigeki Sekine, Nobuya Koike, Hideya Kokubun
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Oct 4, 1995
Inventors
Kazuji Yamada
Akira Tanaka
Ryuichi Saito
Yasutoshi Kurihara
Tadao Kushima
Takashi Haramaki
Yoshihiko Koike
Takashi Hosokawa
Mamoru Sawahata
Masahiro Koizumi
Jin Onuki
Kazuhiro Suzuki
Isao Kobayashi
Hideo Shimizu
Yutaka Higashimura
Shigeki Sekine
Nobuya Koike
Hideya Kokubun
Assignees (at issue)
HITACHI, LTD.
Hitachi Haramachi Electronics Co., Ltd.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.