YK

Yuzo Katayama

NP Nippon Telegraph And Telephone Public: 1 patents #36 of 171Top 25%
Overall (1982): #21,523 of 81,411Top 30%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4320292 Coordinate input apparatus Shigeru Oikawa, Norio Takato, Takashi Kurokawa 1982-03-16