Information Disclosure Statement
The Written Opinion cited in the information disclosure statement filed 12 March 2024 fails to comply with 37 CFR 1.98(a)(3)(i) because it does not include a concise explanation of the relevance, as it is presently understood by the individual designated in 37 CFR 1.56(c) most knowledgeable about the content of the information, of each reference listed that is not in the English language. It has been placed in the application file, but the information referred to therein has not been considered.
JP 2009-528429, cited in the information disclosure statement filed 12 March 2024, has been considered with respect the discussion of this reference in the specification. JP 2020-530551, JP 2018-87323, JP 2018-12825, JP 2017-186529 and JP 2015-44951, cited in the information disclosure statement filed 12 March 2024, have been considered with respect the discussion of these references in the ISR cited in the information disclosure statement.
Specification
The disclosure is objected to because of the following informalities:
In paragraphs [0010], [0017], [0027]; strontium is listed twice in the list of B elements. Appropriate correction is required.
Claim Objections
Claims 1and 6 are objected to because of the following informalities: Strontium is listed twice in the list of B elements. Appropriate correction is required.
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 1-3 and 5 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by WO 2018/111861.
This reference teaches a red phosphor having the formula A2MF6:Mn+4 coated with KMgF3, which is a perovskite, wherein A is at least one of Li, Na, K, Cs and Rb and M is at least one of Si, Ge, Sn, Ti and Zr (para 37; example 19). The coating adheres on the surface of the red phosphor and the coated phosphor forms a particle wherein the red phosphor is present in an inner part of the KMgF3 perovskite. Based on example 19, the calculated mass ratio of the red phosphor to KMgF3 is about 93.75:6.25, which falls within the range of claim 5. The reference teaches the claimed red phosphor.
Allowable Subject Matter
Claim 4 is objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims.
Claim 6 would be allowable if rewritten or amended to overcome the objection set forth in this Office action. Claims 7-11 are objected to as being dependent upon objected base claim 6, but would be allowable once claim 6 is rewritten or amended to overcome the objection set forth in this Office action.
The claimed process where a fluoride phosphor having formula (1) is mixed with a perovskite having formula (2) with each other in the presence of a solvent is not taught or suggested by the cited art of record.
There is no teaching or suggestion in the cited art of record of a red phosphor comprising a fluoride phosphor having formula (1) and a perovskite having formula (2), wherein the perovskite has an average D50 particle size of 3 nm to 20 microns, in a laser diffraction scattering method.
Conclusion
CN 109943328 is cited as of interest since it teaches a phosphor that emits yellow and red light of the formula CsPbBr1.5I1.5-Cs2GeF6:Mn+4. This phosphor is not a red phosphor since it also emits yellow light.
WO 2017/077290 is cited as of interest since it teaches a mixture of a red phosphor having formula (1) and a green phosphor having the formula CH3NH3PbX3, where X is Cl, Br or I, which falls within formula (2). This blend of red and green phosphors would not be a red phosphor, as required by the claims in this application.
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/C Melissa Koslow/Primary Examiner, Art Unit 1734
cmk
7/8/26
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