Prosecution Insights
Last updated: May 29, 2026
Application No. 17/188,255

CURRENT INTRODUCTION TERMINAL STRUCTURE AND ELECTROMAGNET DEVICE

Final Rejection §103
Filed
Mar 01, 2021
Priority
Oct 31, 2018 — JP 2018-204634 +1 more
Examiner
TALPALATSKI, ALEXANDER
Art Unit
2837
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Toshiba Energy Systems & Solutions Corporation
OA Round
8 (Final)
72%
Grant Probability
Favorable
9-10
OA Rounds
0m
Est. Remaining
81%
With Interview

Examiner Intelligence

Grants 72% — above average
72%
Career Allowance Rate
601 granted / 834 resolved
+4.1% vs TC avg
Moderate +9% lift
Without
With
+9.0%
Interview Lift
resolved cases with interview
Typical timeline
2y 7m
Avg Prosecution
28 currently pending
Career history
877
Total Applications
across all art units

Statute-Specific Performance

§101
0.5%
-39.5% vs TC avg
§103
81.2%
+41.2% vs TC avg
§102
7.2%
-32.8% vs TC avg
§112
0.9%
-39.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 834 resolved cases

Office Action

§103
DETAILED ACTION Response to Arguments Applicant's arguments filed 03/12/2026 have been fully considered but they are not persuasive. The applicant argues on pages 6-7 that AAPA, in figure 4, discloses a hollow terminal structure while the terminal of the invention has a solid structure that is different. This argument is not persuasive because a hollow structure of AAPA is also a solid structure since the portion of the terminal that conducts current is made of solid material and has a solidly cylindrical shape. On page 7, the applicant argues that the prior art does not teach “…the exterior of current introduction terminal 12 is immersed in cooling water W in internal space 19A of connection flange 19 and internal space 17A of electromagnet housing 17…”. This argument is not persuasive because the claim language only includes general language stating that an outside of the terminal is immersed in the cooing water. In the combined device taught by the prior art, the cooling water passes through the internal space of the casing where the terminal is also located. Thus, the prior art teaches that the terminal is immersed in the cooling water. On pages 7-8, the applicant argues that Mori does not teach a conductive member and equates core 10 to a conductive member. However, it is clearly shown in Mori, that conductive members 11 and 12 are also immersed in coolant, thus meeting the claim limitations. 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(s) 1, 3-6 and 10 is/are rejected under 35 U.S.C. 103 as being unpatentable over AAPA (Figures 4-5) in view of Mori (US 4904972) and Walton (US 2537249). In re claim 1, AAPA, in figures 4-5, discloses a current introduction terminal structure in which electric current flows from a current introduction terminal (101) to a conductive member (103) formed by bundling a plurality of wires, the current introduction terminal structure comprising: a casing (110) having a first internal space (122) configured to store the conductive member, and to accommodate an electromagnet (as discussed in paragraph 2) electrically connected to the conductive member; a cooling-water supply pipe (117) configured to supply the cooling water; a connecting member (107-108) having a second internal space seamlessly (no seams are present) connected to the first internal space of the casing and being configured to dispose the current introduction terminal therein, wherein a tip portion of the current introduction terminal is electrically connected to the conductive member (as seen in figure 4) while the current introduction terminal has a solidly cylindrical shape such that an outside thereof is immersed in the cooling water supplied from the cooling-water supply pipe; and a cooling-water drain pipe (118-120), which is connected to the first internal space of the casing seamlessly connected with the second internal space of the connecting member immersed with the cooling water supplied from the cooling-water supply pipe through the connecting member, configured to drain the cooling water from the first internal space of the casing, wherein the cooling-water supply pipe, the connecting member and the cooling-water drain pipe are firmly connected together to place the first internal space of the casing and the second internal space of the cooling member in a water-sealed manner (inherent function of the shown structure; both internal spaces are water sealed), wherein the current introduction terminal is located in a circulating path of the cooling water consisting of the cooling-water supply pipe, the first internal space of the casing, the second internal space of the connecting member, and the cooling-water drain pipe (as seen in figure 4), the current introduction terminal is disposed at a communication port that communicates the first internal space of the casing and the second internal space of the connecting member such that the cooling water from the cooling-water supply pipe flows into the first internal space of the casing from the communication port through the second internal space of the connecting member and the cooling water is drained to an outside from the cooling-water drain pipe (as shown in figure 4) the casing has an opening closed by a housing lid (121) and the cooling-water drain pipe is connected to the housing lid via a cooling-water joint (as seen in figure 4). Figures 4-5 do not teach the O-ring, or the conductive member being immersed in cooling water. Walton teaches that an O-ring is known in the art to be used to provide a seal between two structures. Therefore it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have used an O-ring as taught by Walton in the device shown in figures 4-5 in order to provide an improved seal between the casing body and the housing lid, or between any other two structures where an O-ring can be fitted. Mori teaches that immersing a conductive member (11-12) in a liquid coolant (15) is known in the art. Therefore it would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have immersed the conductive member of Figures 4-5 in liquid (water is already present in figures 4-5) as taught by Mori to provide improved cooling. In re claim 3, Figures 4-5 disclose that a current introduction member (112) attached to a base-end connecting portion (portion to which the current introduction member is attached) of the current introduction terminal, which is configured to supply electric current from a power supply to the current introduction terminal, thus directly transmitting the electric current to the conductive member. Member 112 is not disclosed to be adjustable. It would have been obvious to one having ordinary skill in the art at the time the invention was made to have made the current introduction member of the prior art adjustable, since it has been held that the provision of adjustability, where needed, involves routine skill in the art. In re Stevens, 101 USPQ 284 (CCPA 1954). Please note that in the instant application, paragraph 25, applicant has not disclosed any criticality for the claimed limitations. In re claim 4, Figures 4-5 discloses that a current introduction member (112) attached to a base-end connecting portion (portion to which the current introduction member is attached) of the current introduction terminal, which is configured to supply electric current from a power supply to the current introduction terminal, thus directly transmitting the electric current to the conductive member. Member 112 is not disclosed to be detachable. It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to have made member 112 detachable, since it has been held that constructing a formerly integral structure in various elements involves only routine skill in the art. Nerwin v. Erlicnrnan, 168 USPQ 177, 179. Please note that in the instant application, paragraphs 19 and 25 applicant has not disclosed any criticality for the claimed limitations. In re claim 5, Figures 4-5 disclose that the cooling water is pure water that does not conduct electricity (this is inherent functionality since conductive water would prevent the device from functioning correctly). In re claim 6, Figures 4-5 disclose that the current introduction terminal structure is configured to electrically connect the electromagnet to a power source by being disposed between the electromagnet and the power source (as discussed in paragraph 4). In re claim 10, AAPA, in figures 4-5, discloses that the current introduction terminal is solidly composed of a conductive material (the disclosed terminal inherently has to be solid and conductive in order to perform its intended function). Conclusion THIS ACTION IS MADE FINAL. Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Alexander Talpalatski whose telephone number is (571)270-3908. The examiner can normally be reached 10 AM - 6 PM PT. 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, Shawki Ismail can be reached at 5712723985. 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 Talpalatski/ Primary Examiner, Art Unit 2837
Read full office action

Prosecution Timeline

Show 15 earlier events
May 05, 2025
Non-Final Rejection mailed — §103
Aug 05, 2025
Response Filed
Aug 29, 2025
Final Rejection mailed — §103
Dec 01, 2025
Request for Continued Examination
Dec 08, 2025
Response after Non-Final Action
Dec 12, 2025
Non-Final Rejection mailed — §103
Mar 12, 2026
Response Filed
Apr 28, 2026
Final Rejection mailed — §103 (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

9-10
Expected OA Rounds
72%
Grant Probability
81%
With Interview (+9.0%)
2y 7m (~0m remaining)
Median Time to Grant
High
PTA Risk
Based on 834 resolved cases by this examiner. Grant probability derived from career allowance rate.

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