Prosecution Insights
Last updated: April 18, 2026
Application No. 18/123,373

LIQUID DISCHARGE HEAD, LIQUID DISCHARGE UNIT, AND LIQUID DISCHARGE APPARATUS

Final Rejection §102
Filed
Mar 20, 2023
Examiner
VALENCIA, ALEJANDRO
Art Unit
2853
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Ricoh Company Ltd.
OA Round
4 (Final)
42%
Grant Probability
Moderate
5-6
OA Rounds
2y 11m
To Grant
48%
With Interview

Examiner Intelligence

Grants 42% of resolved cases
42%
Career Allow Rate
567 granted / 1335 resolved
-25.5% vs TC avg
Moderate +6% lift
Without
With
+5.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
151 currently pending
Career history
1486
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
53.6%
+13.6% vs TC avg
§102
24.4%
-15.6% vs TC avg
§112
20.8%
-19.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1335 resolved cases

Office Action

§102
DETAILED ACTION 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. Claim(s) 1, 6 and 9-12 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Kimura (2021/0323329). Regarding claims 1 and 9-11, Kimura teaches a liquid discharge head comprising: a nozzle plate having multiple nozzles arrayed at a predetermined pitch (d) corresponding to a recording resolution in a longitudinal direction of the nozzle plate, wherein the multiple nozzles are divided into a P number of sub-nozzle groups, where P is an integer of one or more, each of the P number of sub-nozzle groups includes a plurality of nozzles from the multiple nozzles, each of the P number of sub-nozzle groups includes plural sub-nozzle rows, each sub-nozzle row includes plural nozzles, which are arranged along a first inclination direction inclined relative to the longitudinal direction and a transverse direction orthogonal to the longitudinal direction, the plural nozzles in each of the sub-nozzle rows are arranged with a first interval of (d x P) which is an interval along the longitudinal direction between adjacent nozzles in each of the sub-nozzle rows, a plurality of nozzle rows are arranged along a second inclination direction inclined relative to the longitudinal direction and the transverse direction, each nozzle row of the plurality of nozzle rows includes sub-nozzle rows arranged along the first inclination direction, a first nozzle row of the plurality of nozzle rows consists of an N number of nozzles of the multiple nozzles, and the first nozzle row is in a central region of the nozzle plate in the longitudinal direction, a second nozzle row of the plurality of nozzle rows consists of an M number of nozzles of the multiple nozzles, the second nozzle row is at a first end portion of the nozzle plate in the longitudinal direction, and M is less than N, and a third nozzle row of the plurality of nozzle rows consists of an (N-M) number of nozzles of the multiple nozzles, and the third nozzle row is at a second end portion opposite to the first end portion of the nozzle plate in the longitudinal direction across the central region in the longitudinal direction (see fig. 5, Note identical arrangement of claimed elements as shown in Figure 6 of the present invention. Note all nozzle groups and directions are defined in the prior art as they are in the present specification. As for the first and second nozzle rows with N and M nozzles, respectively, note that any number of nozzles from any nozzle row can itself be called a row of nozzles even it is only a few nozzles out of a nozzle row. Thus, the limitations directed to M and N can be met by choosing the correct amount of nozzles to satisfy the limitations). Regarding claim 6, Kimura teaches the liquid discharge head according to claim 1, wherein the nozzle plate has a nozzle region having a parallelogram shape, the nozzle plate includes multiple nozzle rows and the first end portion includes one corner of the nozzle region having an acute angle, the first end portion including the second nozzle row having the M number of the multiple sub-nozzles, and the second end portion includes another comer of the nozzle region having the acute angle, the second end portion including the third nozzle row having the (N-M) number of the multiple sub-nozzles (As stated above, both corners, angles, end portions and nozzle regions are disclosed as the prior art arrangement is identical to that claimed). Regarding claim 12, Kimura teaches the liquid discharge head according to claim 1, wherein the plural nozzles in each of the sub-nozzle row are arranged with a first interval of (d x P) which is an interval along the longitudinal direction between adjacent nozzles in each of the sub-nozzle rows (As stated above, both corners, angles, end portions and nozzle regions are disclosed as the prior art arrangement is identical to that claimed). Response to Arguments Applicant’s arguments with respect to claim(s) 1 have been considered but are moot in light of the new ground(s) of rejection. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). 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 ALEJANDRO VALENCIA whose telephone number is (571)270-5473. The examiner can normally be reached 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, DOUGLAS X. RODRIGUEZ can be reached at 571-431-0716. 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. /ALEJANDRO VALENCIA/Primary Examiner, Art Unit 2853
Read full office action

Prosecution Timeline

Mar 20, 2023
Application Filed
Mar 20, 2023
Response after Non-Final Action
Dec 16, 2024
Non-Final Rejection — §102
Feb 22, 2025
Interview Requested
Mar 04, 2025
Examiner Interview Summary
Mar 04, 2025
Applicant Interview (Telephonic)
Mar 19, 2025
Response Filed
Mar 24, 2025
Final Rejection — §102
May 15, 2025
Interview Requested
May 28, 2025
Examiner Interview Summary
May 28, 2025
Applicant Interview (Telephonic)
Jun 26, 2025
Request for Continued Examination
Jun 27, 2025
Response after Non-Final Action
Oct 01, 2025
Non-Final Rejection — §102
Nov 25, 2025
Interview Requested
Dec 02, 2025
Applicant Interview (Telephonic)
Dec 02, 2025
Examiner Interview Summary
Dec 31, 2025
Response Filed
Jan 12, 2026
Final Rejection — §102
Mar 05, 2026
Interview Requested
Mar 23, 2026
Applicant Interview (Telephonic)
Mar 23, 2026
Examiner Interview Summary
Apr 07, 2026
Request for Continued Examination
Apr 15, 2026
Response after Non-Final Action

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

5-6
Expected OA Rounds
42%
Grant Probability
48%
With Interview (+5.9%)
2y 11m
Median Time to Grant
High
PTA Risk
Based on 1335 resolved cases by this examiner. Grant probability derived from career allow rate.

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