Prosecution Insights
Last updated: April 19, 2026
Application No. 17/898,729

COIL COMPONENT

Non-Final OA §103
Filed
Aug 30, 2022
Examiner
HOSSAIN, KAZI S
Art Unit
2837
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
TDK Corporation
OA Round
2 (Non-Final)
80%
Grant Probability
Favorable
2-3
OA Rounds
3y 1m
To Grant
96%
With Interview

Examiner Intelligence

Grants 80% — above average
80%
Career Allow Rate
485 granted / 610 resolved
+11.5% vs TC avg
Strong +16% interview lift
Without
With
+16.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
34 currently pending
Career history
644
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
66.6%
+26.6% vs TC avg
§102
24.1%
-15.9% vs TC avg
§112
5.9%
-34.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 610 resolved cases

Office Action

§103
DETAILED ACTION The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim 1 is amended Claim 2 is cancelled 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 of this title, 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. 3. Claims 1, and 4-6 are rejected under 35 U.S.C. 103 as being unpatentable over Keiichi (US 20200033428 A1) in view of Kwak (US 20130162385). Regarding Claim 1: Keiichi teaches A coil component comprising: an element body (1, Fig. 3; para 0035-0070) made of a metal powder-containing resin (see para 0036); a pair of coils (3a, 3b, Fig. 2-3) provided in the element body, the pair of coils overlap each other in a coil axis direction (vertical direction in Fig. 2), and each of the pair of coils has a pair of end portions (left/right end part of 3a/3b in Fig. 2 and Fig. 4, respectively) extending to a surface (surface of 2 in Fig. 2) of the element body; two pairs of external terminals (6a-6b/6a’-6b’, Fig. 5) provided on the surface of the element body and connected to the end portions of the pair of coils, respectively; a magnetic sheet (4) provided in the element body and interposed between the pair of coils in the coil axis direction; an insulator (10, Fig. 3) interposed between at least one of the pair of coils and the magnetic sheet. Keiichi does not teach wherein the magnetic sheet is made of a magnetic material containing magnetic powder and resin. However, Kwak teaches that the magnetic sheet (130, Fig. 2; para 0035 and 0065) is made of a magnetic material containing magnetic powder and resin. It would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to the magnetic sheet is made of a magnetic material containing magnetic powder and resin to provide a coil part capable of improving matching between a first coil pattern and a second coil pattern (see para 0018). Regarding Claim 4: As applied to claim 1, the modified Keiichi teaches that a thickness (i.e. thickness of 4 in vertical direction in Fig. 3) of the magnetic sheet is greater than a thickness (thickness (i.e. thickness of 10 in vertical direction in Fig. 3) of a portion of the insulator interposed between the magnetic sheet and the coil (construed from Fig. 3) Regarding Claim 5: As applied to claim 1, the modified Keiichi teaches the magnetic sheet and the element body except a magnetic permeability of the magnetic sheet is higher than a magnetic permeability of the element body. As of limitation "a magnetic permeability of the magnetic sheet is higher than a magnetic permeability of the element body ", it is seen that Keiichi certainly teaches substantially identical structure as shown in Fig. 2-3 such as an element body made of a metal powder-containing resin, a magnetic sheet is made of a magnetic material containing magnetic powder, resin and an insulator provided in the element body in same filed of endeavor. As per MPEP § 2112.01.I guideline, where the claimed and prior art products are identical or substantially identical in structure or composition, or are produced by identical or substantially identical processes, a prima facie case of either anticipation or obviousness has been established. In re Best, 562 F.2d 1252, 1255, 195 USPQ 430, 433 (CCPA 1977). Therefore, it is obvious to be labeled as a magnetic permeability of the magnetic sheet is higher than a magnetic permeability of the element body. Regarding Claim 6: As applied to claim 1, Keiichi teaches that at least one of a portion corresponding to an inner peripheral region of the coil (upper inner part of 3a or lower part 3b in Fig. 3) and a portion corresponding to an outer peripheral region (left/right upper part of 3a or 3b in Fig. 3) of the coil is omitted from the magnetic sheet. 3. Claim 3 is rejected under 35 U.S.C. 103 as being unpatentable over Keiichi in view of Kwak and further in view of Araki (US 20210098181). Regarding Claim 3: As applied to claim 1, Keiichi teaches the magnetic powder of the magnetic sheet except the magnetic powder of the magnetic sheet has a flat shape. However, Araki taught in para 0059 that the first magnetic portion 10 contains the flat-shaped magnetic particles. It would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to have the magnetic powder of the magnetic sheet has a flat shape provides a coil component having high moisture resistance(see para 0006]. Conclusion The prior art made of record and not relied upon is considered pertinent to applicant's disclosure. A list of pertinent prior art is attached in form 892. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Kazi Hossain whose telephone number is 571-272-8182. The examiner can normally be reached on Monday-Thursday from Monday to Thursday 8:00 AM to 4:30 PM (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 https:/www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner's supervisor, Shawki Ismail can be reached on 571-272-3985. 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. /KAZI HOSSAIN/ Examiner, Art Unit 2837 /TSZFUNG J CHAN/Primary Examiner, Art Unit 2837
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Prosecution Timeline

Aug 30, 2022
Application Filed
Jun 18, 2025
Non-Final Rejection — §103
Sep 30, 2025
Response Filed
Jan 02, 2026
Non-Final Rejection — §103
Apr 07, 2026
Response Filed

Precedent Cases

Applications granted by this same examiner with similar technology

Patent 12603220
COIL COMPONENT
2y 5m to grant Granted Apr 14, 2026
Patent 12597548
INDUCTOR DEVICE
2y 5m to grant Granted Apr 07, 2026
Patent 12586699
COIL COMPONENT
2y 5m to grant Granted Mar 24, 2026
Patent 12586706
COIL COMPONENT AND METHOD OF MANUFACTURING THE SAME
2y 5m to grant Granted Mar 24, 2026
Patent 12580118
MULTI-LAYER INDUCTOR
2y 5m to grant Granted Mar 17, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

2-3
Expected OA Rounds
80%
Grant Probability
96%
With Interview (+16.3%)
3y 1m
Median Time to Grant
Moderate
PTA Risk
Based on 610 resolved cases by this examiner. Grant probability derived from career allow rate.

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