Prosecution Insights
Last updated: April 19, 2026
Application No. 18/529,797

CLUTCH ACTUATOR AND METHOD FOR MANUFACTURING SAME

Non-Final OA §102§103
Filed
Dec 05, 2023
Examiner
PERVIN, FARHANA
Art Unit
3655
Tech Center
3600 — Transportation & Electronic Commerce
Assignee
DENSO CORPORATION
OA Round
1 (Non-Final)
82%
Grant Probability
Favorable
1-2
OA Rounds
1y 8m
To Grant
90%
With Interview

Examiner Intelligence

Grants 82% — above average
82%
Career Allow Rate
220 granted / 270 resolved
+29.5% vs TC avg
Moderate +8% lift
Without
With
+8.0%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 8m
Avg Prosecution
20 currently pending
Career history
290
Total Applications
across all art units

Statute-Specific Performance

§101
0.2%
-39.8% vs TC avg
§103
45.8%
+5.8% vs TC avg
§102
26.8%
-13.2% vs TC avg
§112
25.1%
-14.9% vs TC avg
Black line = Tech Center average estimate • Based on career data from 270 resolved cases

Office Action

§102 §103
DETAILED CORRESPONDENCE 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 . Status of Claims This is the first office action on the merits of Application No. 18/529,797 filed on 12/05/2023. Claims 1-9 are pending. Priority Receipt is acknowledged of certified copies of papers required by 37 CFR 1.55. The certified copy has been filed with application no JP2021-108818, filed on 06/30/2021 and JP2022-013266, filed on 01/31/2022. Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. 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, and 6-8 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Hirota et al. (US 20160238107 A1). Regarding claim 1, Hirota discloses a clutch actuator (figs. 1-8) for a clutch device (e.g. 1, fig. 1 para 30) that includes a clutch (7, fig. 1) installed between a first transmission element (e.g. propeller shaft 219, fig. 4) and a second transmission element (e.g. a gear for transmission torque to the rear differential 219), which are configured to make relative rotation between the first transmission element and the second transmission element, (see para 29) while the clutch is configured to shift a state between: a coupled state where transmission of a torque between the first transmission element and the second transmission element is enabled; and a decoupled state where the transmission of the torque between the first transmission element and the second transmission element is blocked (see para 21), the clutch actuator comprising: a housing (67, 73, fig. 1, para 39) that is placed at an inside space of a case (e.g. casing 6, fig. 1, para 30) which is configured to be installed on a vehicle (fig. 4), wherein the housing (67,fig. 1) includes: a housing plate portion (has not character numeral, the portion contacting 6) that is configured to contact a case plate portion of the case; and a receiving space (e.g. has no character numeral, the space motor 9 is located as shown in fig. 1) that is located on one side of the housing plate portion which is opposite to the case plate portion; an electric motor (9, para 39) that is placed at the receiving space and is configured to output a torque of rotation in response to supply of an electric power to the electric motor; and a rotation-to-translation converter (e.g. cam mechanism 13) that is configured to convert a rotating motion, which is generated by the torque transmitted from the electric motor(9), into a translating motion to shift the state of the clutch to the coupled state or the decoupled state, wherein: the housing (67) includes: a housing protrusion (see the annotated figure A below) that protrudes from a surface of the housing plate portion located on another side of the housing plate portion at which the case plate portion is placed, wherein the housing protrusion is configured to fit into a case recess of the case; and a housing recess (see the annotated figure A below) that is recessed from another surface of the housing plate portion which is opposite to the housing protrusion; the housing plate portion is shaped in an annular form; and the housing protrusion is formed at a location that is spaced from an axis of the housing plate portion in a radial direction of the housing plate portion by a predetermined distance. PNG media_image1.png 721 699 media_image1.png Greyscale Fig. A : Annotated fig. 1 of Hirota Regarding claim 2, Hirota discloses the clutch actuator (fig. 1) according to claim 1, wherein the housing protrusion is configured to be fitted into the case recess to limit relative rotation of the housing relative to the case. (see the annotated fig. A above) Regarding claim 3, Hirota discloses the clutch actuator (fig. 1) according to claim 1, wherein the housing protrusion is formed at the location that is spaced from a rotational axis of the electric motor in a radial direction of the electric motor by a predetermined distance. Regarding claim 6, Hirota discloses the clutch actuator according to claim 1, wherein a distance between a bottom surface of the housing recess and an end surface of the housing protrusion is equal to a plate thickness of a part of the housing plate portion which is located on a radially outer side of the housing protrusion. Regarding claim 7, Hirota discloses the clutch actuator (fig. 1) according to claim 1, wherein: the case recess is shaped in a form of an oblong hole, wherein an inner diameter (e.g. D1 of annotated fig. A) of the case recess, which is measured in the radial direction of the housing plate portion, is larger than another inner diameter (D2 of annotated fig. A) of the case recess, which is measured in a direction perpendicular to the radial direction of the housing plate portion. Regarding claim 8, Hirota discloses the clutch actuator (fig. 1) according to claim 1, comprising a seal member (75, fig. 1 and para 60) that is shaped in an annular form and is placed between the housing plate portion (e.g. 67) and the case plate portion (6) at a location which is on a radially outer side of the housing protrusion in a view taken in a plate thickness direction of the housing plate portion, wherein the seal member (75) is configured to maintain a gas-tight or liquid-tight seal between the housing plate portion and the case plate portion. 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 9 is rejected under 35 U.S.C. 103 as being unpatentable over Hirota et al. (US 20160238107 A1) in view of Ishi et al. (JP 2001221020 A). Regarding claim 9, Hirota discloses a method for manufacturing the clutch actuator of claim 1, but fails to disclose comprising: simultaneously forming the housing protrusion and the housing recess by plastic working. Ishi teaches a method for manufacturing a housing of a rotor (figs. 1-5) wherein protrusion can be formed by the plastic working. (see para 25) It would have been obvious to one having ordinary skill in the art before the effective filing date of the claimed invention to modify Hirota by manufacturing the protrusion by plastic working as taught by Ishi, such as the manufacturing can be performed smoothly, easily and accurately. Moreover, the process is cost effective. (see paras 59-60) Allowable Subject Matter Claims 4 and 5 is objected to as been dependent upon a rejected base claim 1, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims, set forth in this office action. Reasons for allowance, if applicable, will be the subject of a separate communication to the Applicant or patent owner, pursuant to 37 CFR § 1.104 and MPEP § 1302.14. Prior Art SHIROTORI (US 20190186615 A1) discloses a breather device (e.g. 52, fig. 1) for casing (20a) structure of a vehicle. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to FARHANA PERVIN whose telephone number is (571)272-4644. The examiner can normally be reached Mon-Fri 7:30-5:00. 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, Jacob S. Scott can be reached on 5712703415. 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. /F.P/Examiner, Art Unit 3655 /FARHANA PERVIN/Examiner, Art Unit 3655
Read full office action

Prosecution Timeline

Dec 05, 2023
Application Filed
Oct 31, 2025
Non-Final Rejection — §102, §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

1-2
Expected OA Rounds
82%
Grant Probability
90%
With Interview (+8.0%)
1y 8m
Median Time to Grant
Low
PTA Risk
Based on 270 resolved cases by this examiner. Grant probability derived from career allow rate.

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