Fitzpatrick, Cella, Harper & Scinto
Information recording-reproducing apparatus
 In a separation type optical head which is divided into two portions, i.e., a fixed head portion and a carriage portion and which effects at least one of recording, reproduction and erasing on a disk-like recording medium by a light beam, optical parts constituting the fixed head portion are directly mounted on the surface of a base bed on which is mounted a guide member for supporting the carriage portion for seeking. 
Canon Kabushiki Kaisha
G G
G11B G11B
inventional inventional
Yasuo
Suzuki