YO

Yoshifumi Ogawa

HI Hitachi: 20 patents #1,757 of 28,497Top 7%
HH Hitachi High-Technologies: 5 patents #776 of 1,917Top 45%
KT Kabushiki Kaisha Toshiba: 4 patents #6,684 of 21,451Top 35%
📍 Hikari, JP: #5 of 125 inventorsTop 4%
Overall (All Time): #130,374 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 26–29 of 29 patents

Patent #TitleCo-InventorsDate
5212094 Automatic chemical analyzer 1993-05-18
4664767 Plasma treating method and apparatus therefor Katsuyoshi Kudo, Katsuaki Nagatomo, Hideji Yamamoto, Katsuyasu Nishita 1987-05-12
4609426 Method and apparatus for monitoring etching Masaharu Nishiumi, Yoshie Tanaka, Sadayuki Okudaira, Shigeru Nishimatsu 1986-09-02
4559100 Microwave plasma etching apparatus Ken Ninomiya, Shigeru Nishimatsu, Keizo Suzuki, Sadayuki Okudaira 1985-12-17