Prosecution Insights
Last updated: August 17, 2026
Application No. 18/973,461

MAGNETIC RESONANCE IMAGING APPARATUS, IMAGING METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM

Non-Final OA §102
Filed
Dec 09, 2024
Priority
Jan 12, 2024 — JP 2024-003450
Examiner
CURRAN, GREGORY H
Art Unit
Tech Center
Assignee
Canon Inc.
OA Round
1 (Non-Final)
90%
Grant Probability
Favorable
1-2
OA Rounds
5m
Est. Remaining
95%
With Interview

Examiner Intelligence

Grants 90% — above average
90%
Career Allowance Rate
766 granted / 849 resolved
+30.2% vs TC avg
Moderate +5% lift
Without
With
+5.1%
Interview Lift
resolved cases with interview
Fast prosecutor
2y 1m
Avg Prosecution
18 currently pending
Career history
863
Total Applications
across all art units

Statute-Specific Performance

§101
4.1%
-35.9% vs TC avg
§103
41.4%
+1.4% vs TC avg
§102
37.3%
-2.7% vs TC avg
§112
11.8%
-28.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 849 resolved cases

Office Action

§102
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-15 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Beck et al. (US 2017/0146631 A1), hereinafter referred to as Beck. With reference to claim 1, Beck teaches a magnetic resonance imaging apparatus comprising processing circuitry (Fig. 15) configured to: design a first pulse sequence for a slice position relating to a first slice group and a slice for a navigator echo, the first slice group including a plurality of slices for multi-slice imaging by simultaneous multi-slice excitation (¶0084-¶0087); and acquire an echo signal by simultaneously exciting the first slice group and the slice for the navigator echo based on the first pulse sequence (¶0087). With reference to claim 2, Beck further teaches the processing circuitry is further configured to: perform motion correction on the echo signal based on the navigator echo; and generate a reconstructed image by performing multi-slice separation reconstruction on the echo signal subjected to the motion correction (¶0141). With reference to claim 3, Beck further teaches the processing circuitry is configured to correct a slice position of a second slice group based on the navigator echo, the second slice group including a plurality of slices for the multi-slice imaging by the simultaneous multi-slice excitation that is performed next to the imaging of the first slice group (¶0127). With reference to claim 4, Beck further teaches he processing circuitry is configured to design the slice for the navigator echo so as to position the slice for the navigator echo in a gap between adjacent slices of the first slice group (Fig. 2). With reference to claim 5, Beck further teaches the processing circuitry is further configured to: design a second pulse sequence corresponding to a slice position of a second slice group and the slice for a navigator echo, the second slice group including a plurality of slices for multi-slice imaging by simultaneous multi-slice excitation that is performed next to the imaging of the first slice group; and acquire an echo signal by simultaneously exciting the second slice group and the slice for a navigator echo based on the second pulse sequence relating to the second slice group (¶0084-¶0087). With reference to claim 6, Beck further teaches the processing circuitry is further configured to: design a flip angle relating to the slice for the navigator echo so as to make the flip angle relating to the slice for the navigator echo larger than a flip angle relating to each slice of the first slice group; and determine a heartbeat cycle using the navigator echo (¶0065). With reference to claim 7, Beck further teaches the processing circuitry is further configured to: design a flip angle relating to the slice for the navigator echo so as to make the flip angle relating to the slice for the navigator echo smaller than a flip angle relating to each slice of the first slice group, and determine a breathing cycle using the navigator echo (¶0065). With reference to claim 8, Beck further teaches the processing circuitry is further configured to: perform multi-slice separation reconstruction on the echo signal; generate a reconstructed image; and perform image processing on the reconstructed image based on the navigator echo (¶0141). With reference to claim 9, Beck further teaches the processing circuitry configured to perform, as the image processing, at least one of synchronization of body motion and pulsation, correction of the body motion and the pulsation, or analysis of a signal variation after the synchronization or the correction (¶0127). With reference to claim 10, Beck teaches An imaging method comprising: designing a first pulse sequence for a slice position relating to a first slice group and a slice for a navigator echo, the first slice group including a plurality of slices for multi-slice imaging by simultaneous multi-slice excitation(¶0084-¶0087); and acquiring an echo signal by simultaneously exciting the first slice group and the slice for the navigator echo based on the first pulse sequence (¶0087). With reference to claim 11, Beck further teaches generating a reconstructed image by performing multi-slice separation reconstruction on the echo signal; and performing image processing on the reconstructed image based on the navigator echo (¶0141). With reference to claim 12, Beck further teaches image processing, at least one of synchronization of body motion and pulsation, correction of the body motion and the pulsation, or analysis of a signal variation after the synchronization or the correction (¶0127). With reference to claim 13, Beck teaches a non-transitory computer readable medium including computer executable instructions, wherein the instructions, when executed by a processor, cause the processor to perform a method comprising: designing a first pulse sequence for a slice position relating to a first slice group and a slice for a navigator echo, the first slice group including a plurality of slices for multi-slice imaging by simultaneous multi-slice excitation(¶0084-¶0087); and acquiring an echo signal by simultaneously exciting the first slice group and the slice for the navigator echo based on the first pulse sequence (¶0087). With reference to claim 14, Beck further teaches generating a reconstructed image by performing multi-slice separation reconstruction on the echo signal; and performing image processing on the reconstructed image based on the navigator echo (¶0141). With reference to claim 15, Beck further teaches image processing, at least one of synchronization of body motion and pulsation, correction of the body motion and the pulsation, or analysis of a signal variation after the synchronization or the correction (¶0127). Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Nielsen et al. (US 10,288,705 B2) teach a corrected multiple-slice magnetic resonance imaging. Beck (US 10,551,467 B2) teaches a method and apparatus for movement compensation during MRI. Nitta et al. (US 10,969,452 B2) teach a MRI apparatus and multi-slice imaging method. Any inquiry concerning this communication or earlier communications from the examiner should be directed to GREGORY H CURRAN whose telephone number is (571)270-7505. The examiner can normally be reached Monday-Friday, 8am-5pm, EST. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Walter Lindsay can be reached at (571) 272-1674. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /GREGORY H CURRAN/Primary Examiner, Art Unit 2852
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Prosecution Timeline

Dec 09, 2024
Application Filed
Aug 04, 2026
Non-Final Rejection mailed — §102 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
90%
Grant Probability
95%
With Interview (+5.1%)
2y 1m (~5m remaining)
Median Time to Grant
Low
PTA Risk
Based on 849 resolved cases by this examiner. Grant probability derived from career allowance rate.

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