Prosecution Insights
Last updated: April 19, 2026
Application No. 18/795,338

REFLECTION-TYPE OPTICAL ENCODER SCALE AND REFLECTION-TYPE OPTICAL ENCODER

Non-Final OA §103
Filed
Aug 06, 2024
Examiner
BENNETT, JENNIFER D
Art Unit
2878
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Dai Nippon Printing Co. Ltd.
OA Round
1 (Non-Final)
74%
Grant Probability
Favorable
1-2
OA Rounds
2y 11m
To Grant
92%
With Interview

Examiner Intelligence

Grants 74% — above average
74%
Career Allow Rate
633 granted / 860 resolved
+5.6% vs TC avg
Strong +19% interview lift
Without
With
+18.6%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
33 currently pending
Career history
893
Total Applications
across all art units

Statute-Specific Performance

§101
0.9%
-39.1% vs TC avg
§103
49.5%
+9.5% vs TC avg
§102
21.0%
-19.0% vs TC avg
§112
20.3%
-19.7% vs TC avg
Black line = Tech Center average estimate • Based on career data from 860 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 . Specification The title of the invention is not descriptive. A new title is required that is clearly indicative of the invention to which the claims are directed. 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 and 2 is/are rejected under 35 U.S.C. 103 as being unpatentable over Miyashita (JP 2019158710) in view of Tomono et al. (US 5377044). Re claim 1: Miyashita teaches a reflection-type optical encoder scale (fig. 1, 3 and 4) comprising: a high reflection region (40) and a low reflection region (42) alternately placed on a substrate (10) (paragraphs 20 and 30), wherein the low reflection region (42) includes a low reflection portion (42 in the groove) including at least three stacked inorganic layers (layers 21/22/24/26/28), and a reflectance on the low reflection region (42) is 5% or less (paragraph 72), wherein the high reflection region (40) includes at least one stacked inorganic layer (30) (paragraph 32), and a reflectance on the high reflection region is 60% or more (paragraph 72) (see fig. 1, 3 and 4), and wherein a value of a ratio S/N represented by the following formula (3) is 6 or more, (3) the ratio S/N = the reflectance on the high reflection region/the reflectance on the low reflection region (paragraph 72), but does not specifically teach the substrate is a transparent substrate. Tomono teaches a reflection-type encoder scale comprising a transparent substrate (1) (col. 2, lines 46-54) with a reflection pattern thereon (fig. 1, 2 and 6). It would have been obvious to one of ordinary skill in the art at the time the invention was filed to use a transparent substrate with the scale of Miyashita similar to Tomono in order to pass light through the substrate dependent on the desired design providing for a versatile design. Re claim 2: Miyashita as modified by Tomono teaches the reflection-type optical encoder scale, wherein the value of the ratio S/N is 15 or more (Miyashita, paragraph 72). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to JENNIFER D BENNETT whose telephone number is (571)270-3419. The examiner can normally be reached 9AM-6PM EST M-F. 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, Georgia Epps can be reached at 571-272-2328. 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. /JENNIFER D BENNETT/Examiner, Art Unit 2878
Read full office action

Prosecution Timeline

Aug 06, 2024
Application Filed
Jan 09, 2026
Non-Final Rejection — §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
74%
Grant Probability
92%
With Interview (+18.6%)
2y 11m
Median Time to Grant
Low
PTA Risk
Based on 860 resolved cases by this examiner. Grant probability derived from career allow rate.

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