Prosecution Insights
Last updated: May 29, 2026
Application No. 18/684,729

IMPEDANCE MEASURING DEVICE

Non-Final OA §103
Filed
Jul 23, 2024
Priority
Aug 26, 2021 — JP 2021-138307 +1 more
Examiner
POTHEN, FEBA
Art Unit
2858
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Hioki E E Corporation
OA Round
1 (Non-Final)
81%
Grant Probability
Favorable
1-2
OA Rounds
9m
Est. Remaining
93%
With Interview

Examiner Intelligence

Grants 81% — above average
81%
Career Allowance Rate
511 granted / 630 resolved
+13.1% vs TC avg
Moderate +12% lift
Without
With
+12.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
27 currently pending
Career history
666
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
89.2%
+49.2% vs TC avg
§102
1.6%
-38.4% vs TC avg
§112
6.6%
-33.4% vs TC avg
Black line = Tech Center average estimate • Based on career data from 630 resolved cases

Office Action

§103
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 . Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. Information Disclosure Statement The information disclosure statement (IDS) submitted on 11/4/25 and 3/5/24 are in compliance with the provisions of 37 CFR 1.97. Accordingly, the information disclosure statement is being considered by the examiner. 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. Claim 1 is/are rejected under 35 U.S.C. 103 as being unpatentable over Iijima, WO 2020095471 in view of Matsumoto et al., US 20150102672 Regarding claim 1, Iijima discloses an impedance measuring device, comprising: a measurement unit that measures a voltage, generated between contact terminals that respectively contact both terminals of a measurement target object (Fig. 1; measurement object DUT sense terminal Hp, sense terminal Lp) by an alternating current supplied to the measurement target object (Fig. 1; AC signal source 11), and determines an internal impedance of the measurement target object (Fig. 1; ¶[0001]; impedance measuring device 1A); a current source for disconnection detection that supplies an alternating current for disconnection detection to a current path between the measurement unit and the measurement target object via a coupling capacitor (Fig. 1; inspection signal source, ac signal source 21a; coupling capacitors 21b, 61a). Iijima is silent in a charging acceleration unit connected between the coupling capacitor and the current source for disconnection detection to charge the coupling capacitor when the voltage between both the terminals of the current source for disconnection detection exceeds a prescribed voltage range. Matsumoto teaches a charging acceleration unit connected between a coupling capacitor and a current source to charge the coupling capacitor when the voltage between both the terminals of the current source for disconnection detection exceeds a prescribed voltage range (¶[0120]; “When a disconnection abnormality of a ground wiring line between the ground terminal 104 and the ground circuit GND0 occurs…the power capacitor 113 is charged by the return current…and a monitoring divided voltage divided by the voltage dividing resistors 124 and 125 exceeds a predetermined threshold voltage, occurrence of a disconnection abnormality…is detected”). It would have been obvious to one of ordinary skill in the art before the filing date of the invention to incorporate the teaching of Matsumoto into Ijima for the benefit of providing a disconnection abnormality monitoring system. Claim(s) 2-4 is/are rejected under 35 U.S.C. 103 as being unpatentable over Iijima, WO 2020095471 in view of Matsumoto et al., US 20150102672 in view of Terajima, JP 2006343108 Regarding claim 2, Ijima is silent in wherein the prescribed voltage range is narrower than a compliance voltage of the current source for disconnection detection. Terajima teaches wherein a prescribed voltage range is narrower than a compliance voltage of a current source (“Tech-solution” section - voltage range narrower than a predetermined voltage range). It would have been obvious to one of ordinary skill in the art before the filing date of the invention to incorporate the teaching of Terajima into Ijima as modified for the benefit of calculating a more accurate internal impedance of a battery. Regarding claim 3, Ijima is silent in wherein the charging acceleration unit has hysteresis characteristics. Terajima teaches wherein an impedance measuring unit has hysteresis characteristics (“Advantageous-effects” section: “the amplitude limiting unit has a hysteresis characteristic”). It would have been obvious to one of ordinary skill in the art before the filing date of the invention to incorporate the teaching of Terajima into Ijima as modified for the benefit of calculating a more accurate internal impedance of a battery. Regarding claim 4, Terajima teaches wherein the impedance measuring unit includes a hysteresis comparator for a positive power source and a hysteresis comparator for a negative power source (Fig. 1-2; amplitude limiting unit 10; amplifier 10a connected to positive side of power supply 10e, amplifier 10b connected to negative side of power supply 10f). It would have been obvious to one of ordinary skill in the art before the filing date of the invention to incorporate the teaching of Terajima into Ijima as modified for the benefit of calculating a more accurate internal impedance of a battery. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to FEBA POTHEN whose telephone number is (571)272-9219. The examiner can normally be reached 8:30-5:00 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, Judy Nguyen can be reached on 571.272.2258. 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. /FEBA POTHEN/Examiner, Art Unit 2858
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Prosecution Timeline

Jul 23, 2024
Application Filed
Mar 03, 2026
Non-Final Rejection mailed — §103 (current)

Precedent Cases

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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
81%
Grant Probability
93%
With Interview (+12.0%)
2y 7m (~9m remaining)
Median Time to Grant
Low
PTA Risk
Based on 630 resolved cases by this examiner. Grant probability derived from career allowance rate.

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