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Hirofumi Doi

Mitsubishi Electric: 1 patents #405 of 1,581Top 30%
📍 Kasai, JP: #138 of 524 inventorsTop 30%
Overall (1997): #142,588 of 185,788Top 80%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5601112 Check valve Mutsuo Sekiya, Takakazu Tochimoto, Masashi Wakisaka 1997-02-11