SN

Satoshi Namekawa

HI Hitachi: 2 patents #13,388 of 28,497Top 50%
HC Hitachi Koki Co.: 2 patents #413 of 888Top 50%
HS Hitachi Seiko: 2 patents #22 of 106Top 25%
Overall (All Time): #2,340,472 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4638326 Ink jet recording apparatus Takahiro Yamada, Eiji Yoshino, Yasumasa Matsuda 1987-01-20
4618868 Ink jet recording apparatus Takahiro Yamada, Eiji Yoshino, Yasumasa Matsuda 1986-10-21