PATENT CLAIM ANALYSIS

Application Number: 15759769
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2019-05
Patent Classification: ["235", "451000"]

Abstract:
The invention makes it possible to perform highly integrated recording of information and read out the information in a universal method while maintaining long-term durability. Digital data (D) to be stored is divided by a prescribed bit length u to create a plurality of unit data (U 1  to U 4 ). The bits constituting the unit data (U 1 ) are arranged in a two-dimensional matrix to create a unit bit matrix (B(U 1 )), which is converted to a geometrical pattern to thereby create a unit bit graphic pattern (P(U 1 )). Further, alignment marks (Q) are arranged at four corners to create a unit recording graphic pattern (R(U 1 )). A drawing pattern (P(E)) is created as an assembly of the unit recording graphic patterns (R(U 1 ) to R(U 4 )), and is provided to an electron beam lithography system as drawing data (E) whereby a pattern is drawn in a resist layer on a glass substrate. The resist layer is developed and the glass substrate is etched, and thus the digital data (D) is recorded on the substrate as a physically structured pattern.

Claim (Index 43):
An information storage device in which digital data is written onto an information recording medium and stored in it,\n the information storage device, comprising: a data input portion which inputs digital data to be stored; a unit data creating portion in which the digital data is divided by a prescribed bit length unit to create a plurality of unit data; a unit bit matrix creating portion in which data bits which constitute individual unit data are arranged in a two-dimensional matrix form to create a unit bit matrix; a unit bit graphic pattern creating portion in which the unit bit matrix is converted to a geometrical pattern arranged inside a predetermined bit recording domain, thereby creating a unit bit graphic pattern; a unit recording graphic pattern creating portion in which an alignment mark is added to the unit bit graphic pattern to create a unit recording graphic pattern; a drawing data creating portion which creates drawing data for drawing the unit recording graphic pattern; a beam exposure device which performs beam exposure using electron beams or laser light on a substrate which acts as an information recording medium on the basis of the drawing data; and a patterning device which performs pattern processing on the substrate which has been exposed, thereby creating the information recording medium in which a physically structured pattern is formed according to the drawing data, wherein the beam exposure device has a function which performs beam exposure on a substrate having an underlying layer and a resist layer which covers the underlying layer, the beam exposure being made on a surface of the resist layer, and the patterning device includes a development processing portion in which the substrate is immersed into a developing fluid having properties that will dissolve an exposed part or a non-exposed part of the resist layer and a part of the substrate is processed into a remaining part, and an etching processing portion in which the underlying layer is etched by using the remaining part of the resist layer as a mask.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 90.0
- Lexical Diversity: 2.43158
- Patent Class: 235.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15008662', '14273997', '13938455', '13180067', '14112030']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5177276213040212
- 35 USC 102 Novelty (BERT): 0.4780599629901285
- Combined Prediction Score: 0.513760855472632
- Mean Citation Score: 171.805026
- Max Citation Score: 176.864
- Similarity Product: 120.82922616958618

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test