RK

Rie Kojima

Sumitomo Electric Industries: 2 patents #504 of 3,352Top 20%
📍 Okayama, JP: #15 of 146 inventorsTop 15%
Overall (2002): #45,210 of 266,432Top 20%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6432502 Optical recording medium and method of manufacturing the same Hideki Kitaura, Noboru Yamada 2002-08-13
6416837 Information recording medium, a method for manufacturing the same and a method for recording/reproducing information thereon Noboru Yamada, Hideki Kitaura 2002-07-09