SI

Sako Ishikawa

HI Hitachi: 5 patents #7,555 of 28,497Top 30%
Overall (All Time): #1,053,406 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
5852728 Uninterruptible clock supply apparatus for fault tolerant computer system Koji Matsuda, Soichi Takaya, Yoshihiro Miyazaki, Kenichi Kurosawa, Shinichiro Yamaguchi +3 more 1998-12-22
4677583 Apparatus for decimal multiplication Toru Ohtsuki, Yoshio Oshima, Hideaki Yabe, Masaharu Fukuta 1987-06-30
4635220 Binary coded decimal number division apparatus Hideaki Yabe, Yoshio Oshima, Toru Ohtsuki, Masaharu Fukuta 1987-01-06
4603397 Binary coded decimal number division apparatus Toru Ohtsuki, Yoshio Oshima, Masaharu Fukuta 1986-07-29
4543641 Multiplication device using multiple-input adder Masaharu Fukuta, Yoshio Oshima, Toru Ohtsuki 1985-09-24