PATENT CLAIM ANALYSIS

Application Number: 15939428
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["358", "475000"]

Abstract:
In an optical scanning device, an optical deflector includes a base plate, a rotor having an axis of rotation orthogonal to the base plate, and a polygon mirror fixed to the rotor; the polygon mirror has a plurality of reflecting surfaces tilted at a predetermined angle with respect to the axis of rotation. Protrusions protruding from a bottom surface of a frame have bearing surfaces at respective distal ends thereof; the bearing surfaces are in contact with the base plate. The bottom surface includes a first region on which a first protrusion is disposed, and a second region on which a second protrusion is disposed, and a distance between the first region and a scanning plane containing optical axes in cross sections taken along a sub scanning direction of a scanning lens is different from a distance between the second region and the scanning plane.

Claim (Index 4):
The optical scanning device according to  claim 1 , further comprising a plurality of screws by which the base plate is fastened to the plurality of bearing surfaces, respectively, wherein an axis of each of the plurality of screws is orthogonal to the scanning plane.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 90.0
- Lexical Diversity: 2.15278
- Patent Class: 358.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13072717', '10740577', '11675808', '14014674', '14715842']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.4905663783668912
- 35 USC 102 Novelty (BERT): 0.4851575371441384
- Combined Prediction Score: 0.490025494244616
- Mean Citation Score: 170.736798
- Max Citation Score: 173.76317
- Similarity Product: 119.0637834732473

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

Dataset: test