Prosecution Insights
Last updated: April 19, 2026
Application No. 18/266,363

METHOD FOR MANUFACTURING STATOR FOR ROTARY ELECTRIC MACHINE

Non-Final OA §102§103§112
Filed
Jun 09, 2023
Examiner
KIM, PAUL D
Art Unit
3729
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
DENSO CORPORATION
OA Round
1 (Non-Final)
88%
Grant Probability
Favorable
1-2
OA Rounds
3y 0m
To Grant
94%
With Interview

Examiner Intelligence

Grants 88% — above average
88%
Career Allow Rate
1346 granted / 1537 resolved
+17.6% vs TC avg
Moderate +7% lift
Without
With
+6.6%
Interview Lift
resolved cases with interview
Typical timeline
3y 0m
Avg Prosecution
52 currently pending
Career history
1589
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
35.2%
-4.8% vs TC avg
§102
29.4%
-10.6% vs TC avg
§112
30.9%
-9.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1537 resolved cases

Office Action

§102 §103 §112
DETAILED ACTION 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 § 112 The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-10 are rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. Re. claim 1: The phrase “the end of the coil piece” as recited in line 4 lacks antecedent basis. The phrase “a setting step of bringing two ends to be joined into contact” as recited in line 7 renders the claim vague and indefinite. It is unclear as to what the two ends are indicated. Clarification is required. 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. Claims 1-3, 5 and 8 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Sakata et al. (JP 2019115188 A1). Sakata et al. teach a process of manufacturing a stator for a rotary electric machine, comprising steps of: an installation step of installing coil pieces for a stator coil in a stator core as shown in Fig. 1; and a joining step of joining ends of the coil pieces or the end of the coil piece and an end of a busbar by laser welding after the installation step as shown in Figs. 3-4, wherein the joining step includes a setting step of bringing two ends to be joined into contact with each other as sown in Fig. 3, an image recognition step of detecting, after the setting step, image features related to non-contact surfaces continuous with contact surfaces of the two ends in an image obtained by imaging the two ends by an imaging unit (102) as shown in Fig. 3, and a determination step of determining, after the image recognition step, a laser radiation position based on the image features related to the non-contact surfaces subjected to image recognition as shown in Figs. 4 and 5 (see also paragraphs [0023]-[0029]). Re. claim 2: The image recognition step includes detecting the image features related to the non-contact surfaces at the two ends by the imaging unit as shown in Fig. 3 (see also paragraphs [0023] and [0026]). Re. claim 3: The determination step includes linearly changing the laser radiation position based on a straight line passing through pixel positions related to the image features in the image or portions near the pixel positions as shown in Figs. 4 and 5 (see also paragraphs [0027]-[0030]). Re. claims 5 and 8: The setting step includes positioning the two ends with a jig (130), and the non-contact surfaces face the jig with clearances in a direction perpendicular to the non-contact surfaces as shown in Fig. 3 (paragraphs [0028]-[0029]). Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claims 4 and 6-12 are rejected under 35 U.S.C. 103 as being unpatentable over Sakata et al. as applied to claim 1 above, and further in view of Kojima et al. (PGPub 2015/0364891 A1). Sakata et al. teach all limitations as set forth above including the image, which is captured by a camera (such as the imaging unit), is positioned so that an optical axis extends along the non-contact surfaces as shown in Fig. 3, but silent the image features include edges having brightness differences in a direction intersecting the non-contact surfaces in the image (as per claims 4, 6 and 7). Kojima et al. teach a process of making an electrical device including an imaging unit captured image features having brightness differences in a surfaces in an image in order to define an irradiation position by a laser to a welding portion (see also paragraph [0171]). Therefore, it would have been obvious to one of ordinary skill in the art, at the time of the effective filing date of the claimed invention was made, to a person having ordinary skill in the art to modify a process of fabricating a stator for a rotary electric machine of Sakata et al. by providing brightness differences in a surfaces in an image as taught by Kojima et al. in order to define an irradiation position by a laser to a welding portion. Re. claims 8-12: Sakata et al. also teach that the setting step includes positioning the two ends with a jig (130), and the non-contact surfaces face the jig with clearances in a direction perpendicular to the non-contact surfaces as shown in Fig. 3 (paragraphs [0028]-[0029]). The Prior Art The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. Toi (PGPub 2021/0273537 A1), and Lu et al. (PGPub 2012/000238 A1) are cited to further show the state of the art with respect to a manufacturing a stator for a rotary electric machine. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to PAUL D KIM whose telephone number is (571)272-4565. The examiner can normally be reached Monday-Friday: 6:00 AM-2:00 PM. 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, Thomas Hong can be reached at 571-272-0993. 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. /PAUL D KIM/Primary Examiner, Art Unit 3729
Read full office action

Prosecution Timeline

Jun 09, 2023
Application Filed
Feb 13, 2026
Non-Final Rejection — §102, §103, §112 (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
88%
Grant Probability
94%
With Interview (+6.6%)
3y 0m
Median Time to Grant
Low
PTA Risk
Based on 1537 resolved cases by this examiner. Grant probability derived from career allow rate.

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