PATENT CLAIM ANALYSIS

Application Number: 16160377
Application Type: Utility
Filing Date: 2018-10
Publication Date: 2019-02
Patent Classification: ["360", "055000"]

Abstract:
Provided is a magnetic tape device in which a magnetic tape transportation speed is equal to or lower than 18 m/sec, Ra measured regarding a surface of a magnetic layer of a magnetic tape is equal to or smaller than 2.0 nm, a C—H derived C concentration calculated from a C—H peak area ratio of C1s spectra obtained by X-ray photoelectron spectroscopic analysis performed on the surface of the magnetic layer at a photoelectron take-off angle of 10 degrees is 45 to 65 atom %, and ΔSFD (=SFD 25°C. −SFD −190° C. ) in a longitudinal direction of the magnetic tape is equal to or smaller than 0.50, with the SFD 25° C.  being SFD measured in a longitudinal direction of the magnetic tape at a temperature of 25° C., and the SFD −190° C.  being SFD measured at a temperature of −190° C.

Claim (Index 4):
A magnetic tape device comprising:\n a magnetic tape; and a reproducing head, wherein a magnetic tape transportation speed of the magnetic tape device is equal to or lower than 18 m/sec, the reproducing head is a magnetic head including a tunnel magnetoresistance effect type element as a reproducing element, the magnetic tape includes a non-magnetic support, and a magnetic layer including ferromagnetic powder and a binding agent on the non-magnetic support, a C\u2014H derived C concentration calculated from a C\u2014H peak area ratio of C1s spectra obtained by X-ray photoelectron spectroscopic analysis performed on the surface of the magnetic layer at a photoelectron take-off angle of 10 degrees is 45 to 65 atom %, and a ratio Sdc/Sac of an average area Sdc of a magnetic cluster of the magnetic tape in a DC demagnetization state and an average area Sac of a magnetic cluster of the magnetic tape in an AC demagnetization state measured with a magnetic force microscope is 0.80 to 1.30.

Metadata:
- Claim Count in Document: 32.0
- Percentile: 97.0
- Lexical Diversity: 2.05405
- Patent Class: 360.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15920782', '15900080', '15920563', '15900144', '15920533']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6791150816868516
- 35 USC 102 Novelty (BERT): 0.6250623424387625
- Combined Prediction Score: 0.6737098077620427
- Mean Citation Score: 449.44674
- Max Citation Score: 580.48535
- Similarity Product: 517.4164650498986

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

Dataset: test