PATENT CLAIM ANALYSIS

Application Number: 15774339
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2019-08
Patent Classification: ["324", "320000"]

Abstract:
To provide an operator with operability similar to that of conventional devices with an electromagnetic device that accurately maintains a magnetic field distribution by adjusting the magnetic field for each eigenmode obtained by singular value decomposition. The strength of a unique mode is found from a measurement magnetic field, a current for each unique mode of a negative feedback control according to the magnetic field is calculated and the current is added to each mode to obtain a current for each shim coil, and a coil current is controlled so as to reach the obtained current value. In an interface for an operator, a target for a corrected magnetic field and a magnetic field generated by a shim coil are displayed using a spherical surface harmonic function strength. Due to this configuration, a device which enables accurate magnetic field adjustment while offering operability similar to conventional devices can be provided.

Claim (Index 3):
The magnetic field adjustment device according to  claim 1 ,\n wherein the shim coil array is disposed to surround the magnetic field use area of a magnet device and to surround a center axis of the magnet device in a circumferential direction, wherein two or more shim coils are arranged in the circumferential direction and two or more shim coils are arranged in an axial direction, and wherein the shim coils are arranged densely such that a sum of areas surrounded by the shim coils occupies 80% or more of an area of a coil surface of the shim coil array.

Metadata:
- Claim Count in Document: 5.0
- Percentile: 93.0
- Lexical Diversity: 2.0
- Patent Class: 324.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15549826', '15542493', '15122555', '15550160', '15541838']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.5741255360122707
- 35 USC 102 Novelty (BERT): 0.5101909074609239
- Combined Prediction Score: 0.5677320731571359
- Mean Citation Score: 258.275598
- Max Citation Score: 291.4992
- Similarity Product: 222.3075597335815

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