Optical pickup apparatus, optical element for optical pickup...

Details Optical pickup apparatus, optical element for optical pickup... Optical pickup apparatus, optical element for optical pickup...

2004-07-07

2009-06-09

Edun, Muhammad N. (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

C369S044140, C369S044370

Reexamination Certificate

active

07545724

ABSTRACT:
The present invention relates to an optical element for an optical pickup device, wherein the optical element is produced by molding a resin material, in which inorganic particles having a diameter of not more than 30 nm are dispersed in a plastic resin, an optical pickup device using the optical element, and a producing method of the optical element.

REFERENCES:
patent: 5059003 (1991-10-01), Haus et al.
patent: 7091271 (2006-08-01), James et al.
patent: 7099261 (2006-08-01), Yoshida et al.
patent: 2002/0185610 (2002-12-01), Stern
patent: 11-337818 (1999-12-01), None
patent: 2001-201601 (2001-07-01), None
patent: 2001-235677 (2001-08-01), None
patent: 2001-260139 (2001-09-01), None
patent: 2002-047425 (2002-02-01), None
patent: 2002-303701 (2002-10-01), None
patent: 2003-073563 (2003-03-01), None
patent: 2003-073564 (2003-03-01), None
International Search Report for PCT/JP2004/009881.
English language Abstract of JP-11-337818.
English language Abstract of JP-2001-201601.
English language Abstract of JP-2001-235677.
English language Abstract of JP-2001-260139.
English language Abstract of JP-2002-047425.
English language Abstract of JP-2002-303701.
English language Abstract of JP-2003-073563.
English language Abstract of JP-2003-073564.

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