Prosecution Insights
Last updated: July 17, 2026
Application No. 18/948,095

STATOR AND ROTATING ELECTRIC MACHINE

Non-Final OA §102
Filed
Nov 14, 2024
Priority
May 16, 2022 — JP 2022-080006 +1 more
Examiner
SINGH, ALEXANDER A
Art Unit
Tech Center
Assignee
Denso Corporation
OA Round
1 (Non-Final)
77%
Grant Probability
Favorable
1-2
OA Rounds
10m
Est. Remaining
78%
With Interview

Examiner Intelligence

Grants 77% — above average
77%
Career Allowance Rate
501 granted / 649 resolved
+17.2% vs TC avg
Minimal +1% lift
Without
With
+1.3%
Interview Lift
resolved cases with interview
Typical timeline
2y 6m
Avg Prosecution
20 currently pending
Career history
669
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
87.2%
+47.2% vs TC avg
§102
6.4%
-33.6% vs TC avg
§112
5.4%
-34.6% vs TC avg
Black line = Tech Center average estimate • Based on career data from 649 resolved cases

Office Action

§102
DETAILED ACTION 1. Claims 1-10 of U.S. Application 18/948095 filed on November 14, 2024 are presented for examination. Notice of Pre-AIA or AIA Status 2. The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Information Disclosure Statement 3. The information disclosure statements (IDS) submitted on November 14, 2024, August 28, 2025, September 3, 2025 and May 7, 2026 are in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statements are being considered by the examiner. Claim Rejections - 35 USC § 102 4. 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. 5. Claims 1-10 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Amaya (US 20210257873). Regarding claim 1, Amaya teaches (see figs. 1-3 and 7 below) a stator (30) (¶ 21 to ¶ 24), comprising: a stator core (31) formed of a plurality of core sheets stacked in an axial direction, and having an annular yoke portion (34) and teeth (35) extending from the yoke portion (34) to an inner peripheral side (¶ 26 to ¶ 29); a bobbin (60) configured to cover the teeth (35); a coil (50) wound around the bobbin (60) (¶ 29 to ¶ 31); and a pressing member (80) having an abutting part (see annotated fig. 7 below) that contacts an axial end surface of the yoke portion (34) (¶ 24; ¶ 38 to ¶ 42). PNG media_image1.png 786 536 media_image1.png Greyscale PNG media_image2.png 568 480 media_image2.png Greyscale PNG media_image3.png 778 536 media_image3.png Greyscale PNG media_image4.png 808 436 media_image4.png Greyscale Regarding claim 2/1, Amaya teaches (see figs. 1-3 and 7 above) the stator core (31) is composed of a plurality of split cores (32) arranged along a circumferential direction, and each of the plurality of split cores (32) has a core back that constitutes the yoke portion (34), and the teeth (35) extending from the core back (¶ 24; ¶ 26; ¶ 27). Regarding claim 3/1, Amaya teaches (see figs. 1-3 and 7 above) the abutting part (see annotated fig. 7 above) abuts against the axial end surface over the entire circumferential direction of the yoke portion (34) (fig. 1; ¶ 24; ¶ 38 to ¶ 42). Regarding claim 4/2/1, Amaya teaches (see figs. 1-3 and 7 above) the abutting part (see annotated fig. 7 above) abuts partially in the circumferential direction of the yoke portion (34) on the axial end surface (fig. 7; ¶ 24; ¶ 38 to ¶ 42). Regarding claim 5/4/2/1, Amaya teaches (see figs. 1-3 and 7 above) the abutting part (see annotated fig. 7 above) contacts the axial end surface at a boundary portion where the core backs adjacent in the circumferential direction are in contact with each other (figs. 1 and 2; ¶ 24; ¶ 38 to ¶ 42). Regarding claim 6/4/2/1, Amaya teaches (see figs. 1-3 and 7 above) the abutting part (see annotated fig. 7 above) contacts the axial end surface at a circumferential center portion of the core back (figs. 1 and 2; ¶ 24; ¶ 38 to ¶ 42). Regarding claim 7/1, Amaya teaches (see figs. 1-3 and 7 above) the pressing member (80) is a resin molded portion (80) that covers the coil (50), the coil (50) has one axial end and another axial end, the resin molded portion (80) has a first covering portion (81) covering one axial end portion of the coil (50), a second covering portion (81) covering the other axial end portion of the coil (50) (¶ 24; ¶ 38 to ¶ 42), and a connecting portion (this is the portion of the molded resin 80 that fills slots 36, see ¶ 39) connecting the first covering portion (81) and the second covering portion (81, and the abutting part (see annotated fig. 7 above) is included in each of the first covering portion (81) and the second covering portion (81) (¶ 24; ¶ 38 to ¶ 42). Regarding claim 8/7/1, Amaya teaches (see figs. 1-3 and 7 above) the stator core (31) has a plurality of the teeth (35) arranged along a circumferential direction, a plurality of coils (50) are provided corresponding to the plurality of teeth (35), respectively, and the resin molded portion (80) collectively covers the plurality of coils (50) (¶ 24; ¶ 27; ¶ 38 to ¶ 42). Regarding claim 9/7/1, Amaya teaches (see figs. 1-3 and 7 above) the resin molded portion (80) is made of a material having a higher thermal conductivity than the bobbin (60) (Abstract; ¶ 41). Regarding claim 10, Amaya teaches (see figs. 1-3 and 7 above) a rotating electric machine, comprising: a stator (30); and a rotor (20) facing the stator (30) (¶ 21 to ¶ 24), wherein the stator (30) includes: a stator core (31) formed of a plurality of core sheets stacked in an axial direction, and having an annular yoke portion (34) and teeth (35) extending from the yoke portion (34) to an inner peripheral side (¶ 26 to ¶ 29); a bobbin (60) configured to cover the teeth (35); a coil (50) wound around the bobbin (60) (¶ 29 to ¶ 31); and a pressing member (80) having an abutting part (see annotated fig. 7 below) that contacts an axial end surface of the yoke portion (34) (¶ 24; ¶ 38 to ¶ 42). Allowable Subject Matter 6. Claims 7-9 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Conclusion 7. Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALEXANDER A SINGH whose telephone number is (571)270-0243. The examiner can normally be reached M-F 9am to 5pm. 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, Seye Iwarere can be reached at 571-270-5112. 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. ALEXANDER A SINGH/Primary Examiner, Art Unit 2834
Read full office action

Prosecution Timeline

Nov 14, 2024
Application Filed
Jun 23, 2026
Non-Final Rejection mailed — §102 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12665458
MOTOR STATOR AND MOTOR USING THE SAME
2y 0m to grant Granted Jun 23, 2026
Patent 12665459
MOTOR STATOR AND MOTOR USING THE SAME
2y 0m to grant Granted Jun 23, 2026
Patent 12658768
INTEGRATED DRIVE DEVICE
2y 9m to grant Granted Jun 16, 2026
Patent 12658743
STATOR
2y 3m to grant Granted Jun 16, 2026
Patent 12651940
ELECTRONIC COMPONENT MODULE AND MOTOR
2y 5m to grant Granted Jun 09, 2026
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
77%
Grant Probability
78%
With Interview (+1.3%)
2y 6m (~10m remaining)
Median Time to Grant
Low
PTA Risk
Based on 649 resolved cases by this examiner. Grant probability derived from career allowance rate.

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