Rene Hendrik Hamer

US Patent:

20090245066, Oct 1, 2009

Filed:

Dec 12, 2006

Appl. No.:

12/097218

Inventors:

Kanji Katsuura - Saitama-ken, JP
Ori Eitan - Jerusalem, IL
Yoshihiru Okino - Kyoto, JP
Rene Hamer - Louisville CO, US
David Livshits - Ashdod, IL

Assignee:

Mempile Inc. - Wilmington DE

International Classification:

G11B 7/00
G11B 7/24

US Classification:

369100, 3692754, G9B 7

Abstract:

An optical data carrier is presented. The data carrier comprises: at least one recording layer composed of a material having a fluorescent property variable on occurrence of multi-photon absorption resulting from an optical beam, said recording layer having a thickness for forming a plurality of recording planes therein; at least one non-recording layer formed on at least one of upper and lower surfaces of said recording layer and differing in fluorescent property from said recording layer; and at least one reference layer having a reflecting surface being an interface between the recording layer and the non-recording layer.

US Patent:

20090310473, Dec 17, 2009

Filed:

Jan 18, 2007

Appl. No.:

12/162338

Inventors:

Kanji Katsuura - Saitama-ken, JP
Rene Hamer - Louisville CO, US
Yair Salomon - Jerusalem, IL

Assignee:

Mempile Inc. - Wilmington DE

International Classification:

G11B 7/24
B32B 7/02
B32B 3/10

US Classification:

3692754, 428212, 428172, 4281951, G9B 7

Abstract:

An optical data carrier is presented. The data carrier comprises at least one recording layer, at least one non-recording layer, and at least one reflective interface. The recording layer is made of a material having a fluorescent property variable on occurrence of multi-photon absorption resulted from an optical beam, and has a thickness for recording therein data in the form of a three-dimensional pattern of spaced-apart recording regions arranged in a plurality of recording planes. The at least one non-recording layer interfaces with the recording layer on, respectively, at least one of upper and lower surfaces of the recording layer The non-recording layer has a fluorescent property different from that of the recording layer, and has a predetermined thickness selected to be equal or larger than a focal depth of an optical system producing the optical beam incidence onto the data carrier. The at least one reflective interface comprises at least one reference layer having a reflecting property. The at least reflective layer is formed on the other surface of the at least one non-recording layer, respectively, such that the non-recording layer in sandwiched between the reference layer and the recording layer.