YK

Yoshiyuki Kageyama

Ricoh Company: 2 patents #147 of 812Top 20%
📍 Numazu, JP: #25 of 91 inventorsTop 30%
Overall (2005): #28,219 of 245,428Top 15%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6963527 Information recording method and optical recording medium therefor Hiroko Ohkura, Makoto Harigaya, Hajime Yuzurihara, Eiko Hibino, Hiroshi Miura +1 more 2005-11-08
6884488 Phase-change optical recording medium and recording method and apparatus for the same Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki +2 more 2005-04-26