EK

Eiji Koyama

HI Hitachi: 2 patents #478 of 3,189Top 15%
HM Hitachi Maxell: 1 patents #28 of 100Top 30%
📍 Tsuchiura, JP: #2 of 47 inventorsTop 5%
Overall (2005): #24,688 of 245,428Top 15%
3
Patents 2005

Issued Patents 2005

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6944117 Information recording medium and information recording device Hiroki Yamamoto, Takashi Naito, Ken Takahashi, Sumio Hosaka, Motoyasu Terao +2 more 2005-09-13
6897823 Plane antenna and method for manufacturing the same Tamotsu Iida 2005-05-24
6844092 Optically functional element and production method and application therefor Hiroki Yamamoto, Takashi Naito, Ken Takahashi, Motoyasu Terao, Toshimichi Shintani +5 more 2005-01-18