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Yasuhiro Numata

Canon: 2 patents #487 of 2,200Top 25%
Overall (1997): #19,459 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5625384 Ink jet recording apparatus and method using replaceable recording heads Kazuyoshi Takahashi, Yoshiaki Takayanagi, Hiroshi Tajika, Noribumi Koitabashi, Hitoshi Sugimoto +1 more 1997-04-29
5617122 Recording apparatus and method for controlling recording head driving timing Yoshiaki Takayanagi, Akira Katayama, Nobuyuki Kuwabara, Isao Ebisawa, Tsuyoshi Ohtani 1997-04-01