KO

Katsuo Ohki

HI Hitachi: 3 patents #10,712 of 28,497Top 40%
📍 Ibaraki, JP: #2,661 of 6,779 inventorsTop 40%
Overall (All Time): #1,645,395 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5689572 Method of actively controlling noise, and apparatus thereof Shinichi Shimode, Yukiji Iwase, Osamu Sekiguchi, Masanori Watanabe, Takahiro Daikoku +2 more 1997-11-18
5548411 Facsimile apparatus Kazutaka Sato, Michihiro Watanabe, Masahisa Aoyagi, Taisaku Seino, Hiromitsu Fukuda +7 more 1996-08-20
5452098 Facsimile apparatus Kazutaka Sato, Michihiro Watanabe, Masahisa Aoyagi, Taisaku Seino, Hiromitsu Fukuda +7 more 1995-09-19