Prosecution Insights
Last updated: April 19, 2026
Application No. 18/292,220

POSITION DETERMINING MECHANISM FOR ROTARY PLATEN, MOLD CLAMPING DEVICE, AND INJECTION MOLDING MACHINE

Non-Final OA §102§103
Filed
Jan 25, 2024
Examiner
MELENDEZ, ARMAND
Art Unit
1759
Tech Center
1700 — Chemical & Materials Engineering
Assignee
The Japan Steel Works, Ltd.
OA Round
1 (Non-Final)
47%
Grant Probability
Moderate
1-2
OA Rounds
3y 4m
To Grant
89%
With Interview

Examiner Intelligence

Grants 47% of resolved cases
47%
Career Allow Rate
163 granted / 350 resolved
-18.4% vs TC avg
Strong +43% interview lift
Without
With
+42.7%
Interview Lift
resolved cases with interview
Typical timeline
3y 4m
Avg Prosecution
44 currently pending
Career history
394
Total Applications
across all art units

Statute-Specific Performance

§101
0.4%
-39.6% vs TC avg
§103
53.4%
+13.4% vs TC avg
§102
15.3%
-24.7% vs TC avg
§112
19.9%
-20.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 350 resolved cases

Office Action

§102 §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 . Election/Restrictions Applicant’s election without traverse of claims 1-9 in the reply filed on 10/14/25 is acknowledged. Claims 10-19 are withdrawn from further consideration pursuant to 37 CFR 1.142(b) as being drawn to a nonelected invention, there being no allowable generic or linking claim. Election was made without traverse in the reply filed on 1/25/24. Claim Rejections - 35 USC § 102 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 1-6, 8 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Miyahara (JP H058246). As to claim 1, A position determining mechanism for a rotary platen, the rotary platen being disposed to face a mold platen and being provided to be rotatable with respect to the mold platen, the position determining mechanism comprising: a position determination part (12) provided to one platen of the mold platen and the rotary platen (10); and a position determination driving unit (14) provided to the other platen, wherein the position determination driving unit includes a press member (19) and pressing means (phrased as “driven by air or hydraulic pressure”) [0009], and wherein when the press member (58, 42) is pressed by the pressing means and the press member (58) is fitted into the position determination part, a rotation position of the rotary platen is determined [Fig 1, 3, 4, 6]. As the claim is directed to the position determining mechanism, the various platens are not a limitation of the claim as they are objects that are not part of the claimed invention, which is the position determining mechanism in particular. As to claim 2, Miyahara teaches a circular or arcuate guide portion (the edge surface of the rotary plate 10 or the groove 122 in Fig 6) concentric with the rotary platen is formed on the one platen, and the position determination part is provided continuously with the guide portion, and wherein when the rotary platen rotates, the press member is configured to be pressed by the pressing means and slide in contact with the guide portion so as to be guided to the position determination part [Fig 1, 3, 4, 6]. The examiner notes that applicant does not require the guide portion be a groove or have any feature in particular beyond being in contact with the pressing member and concentric with the rotary platen as in [Fig 4] or claim 4 of applicant’s own disclosure. As to claim 3, Miyahara teaches the position determining mechanism for a rotary platen according to wherein the pressing means is configured to press the press member (58, 42) according to a rotation position of the rotary platen, and in a case where the press member comes near the position determination part, the pressing means presses the press member so that the press member comes into contact with the guide portion [Fig 1, 3, 4, 6]. As to claim 4, Miyahara teaches The position determining mechanism for a rotary platen according to wherein the one platen is the rotary platen (10), and wherein an outer peripheral wall of the rotary platen serves as the guide portion [Fig 1, 3, 4, 6]. As to claim 5, Miyahara teaches The position determining mechanism for a rotary platen according to the position determination part is provided to the one platen at a reference position of the rotary platen and a position whose rotation phase is shifted by 180 degrees from the reference position [Fig 6]. As to claim 6, Miyahara teaches The position determining mechanism for a rotary platen wherein a V-notch is formed in the position determination part and wherein a tip end of the press member is fittable into the V-notch [Fig 3, 0007] As to claim 8, Miyahara teaches The position determining mechanism for a rotary platen according to any one of claims 1 to 7, wherein the pressing means (16) includes a cylinder unit [0007]. 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 7 is rejected under 35 U.S.C. 103 as being unpatentable over Miyahara (JP H058246) in view of Obikane (JP 2020-25128). As to claim 7, Miyahara teaches the press member moves along the guide surface comes into contact with a V-notch, the tip of the press member comprising a round cylinder [Fig 3, 4], but does not explicitly state the tip end a roller. Obikane teaches a position detecting mechanism within a conveying device [Abstract] wherein a roller (93) guides along a surface until it reaches a desired position indicated by a v notch [Fig 12, 13] which allows for highly accurate determination of a position [0045, 0046]. It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have altered the invention of Miyahara and made the tip of the press member a roller, as suggested by Obikane, as this had demonstrated success at determining when a desired position is arrived at and was compatible with V- notch position indicators Claim 9 is rejected under 35 U.S.C. 103 as being unpatentable over Miyahara (JP H058246) in view of Nippon Bearing (Linear Bushings). As to claim 9, Miyahara teaches a guide for the pressing means configured to guide movement of the press member [Fig 3, 4], but does not explicitly state the guide includes a ball bush. Nippon Bearing teaches multiple bushings/bearings including a linear bass bushing and notes that such parts “standard parts for linear motion” and that these bushings allow for a stroke motion to be obtained with “very little frictional resistance.” It would have been obvious to one of ordinary skill in the art before the effective filing date of the claimed invention to have altered the invention of Miyahara and made the guide element be a ball bushing, as suggested by Nippon Bearing, as these parts were typical for linear motion and allowed for operation with minimal frictional resistance. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ARMAND MELENDEZ whose telephone number is (571)270-0342. The examiner can normally be reached 9 AM- 6 PM Monday-Friday. 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, Curtis Mayes can be reached at 571-272-1234. 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. /ARMAND MELENDEZ/Primary Examiner, Art Unit 1759
Read full office action

Prosecution Timeline

Jan 25, 2024
Application Filed
Dec 31, 2025
Non-Final Rejection — §102, §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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INJECTION DEVICE
2y 5m to grant Granted Apr 14, 2026
Patent 12594711
RECIPROCATING INJECTION UNIT
2y 5m to grant Granted Apr 07, 2026
Patent 12594702
MACHINE AND METHOD FOR INJECTION MOLDING MULTILAYER ARTICLES HAVING A HIGH PROPORTION OF INTERNAL LAYER MATERIAL
2y 5m to grant Granted Apr 07, 2026
Patent 12533836
INJECTION MOLDING UNIT FOR AN INJECTION MOLDING MACHINE FOR PROCESSING PLASTICS
2y 5m to grant Granted Jan 27, 2026
Patent 12528238
DRIVE MECHANISM, INJECTION APPARATUS, AND INJECTION MOLDING MACHINE
2y 5m to grant Granted Jan 20, 2026
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
47%
Grant Probability
89%
With Interview (+42.7%)
3y 4m
Median Time to Grant
Low
PTA Risk
Based on 350 resolved cases by this examiner. Grant probability derived from career allow rate.

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