Membership
Tour
Register
Log in
Yasushi Seike
Follow
Person
Higashihiroshima, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Optical pickup device using a holographic optical element and an am...
Patent number
5,272,329
Issue date
Dec 21, 1993
Sharp Kabushiki Kaisha
Toshiya Nagahama
G11 - INFORMATION STORAGE