Case: 19-2214 Document: 87 Page: 1 Filed: 03/16/2021
NOTE: This disposition is nonprecedential.
United States Court of Appeals
for the Federal Circuit
______________________
PI ADVANCED MATERIALS CO., LTD., FKA SKC
KOLON PI, INC.,
Plaintiff-Appellee
v.
KANEKA CORPORATION,
Defendant-Appellant
______________________
2019-2214
______________________
Appeal from the United States District Court for the
Central District of California in No. 2:16-cv-05948-AG-
MAA, Judge Andrew J. Guilford.
______________________
Decided: March 16, 2021
______________________
JENNIFER L. SWIZE, Jones Day, Washington, DC, ar-
gued for plaintiff-appellee. Also represented by JIHONG
LOU; THOMAS KOGLMAN, Cleveland, OH; STEVEN J. CORR,
Los Angeles, CA; YEAH-SIL MOON, New York, NY; SEAN
CHRISTIAN PLATT, San Diego, CA; MATTHEW J. SILVEIRA,
San Francisco, CA.
ANTHONY J. DAIN, Procopio, Cory, Hargreaves & Sa-
vitch LLP, San Diego, CA, argued for defendant-appellant.
Case: 19-2214 Document: 87 Page: 2 Filed: 03/16/2021
2 PI ADVANCED MATERIALS CO., LTD v. KANEKA CORPORATION
Also represented by RAYMOND K. CHAN, DAVE DEONARINE,
FREDERICK K. TAYLOR.
______________________
Before PROST, Chief Judge, BRYSON and WALLACH, Circuit
Judges.
PROST, Chief Judge.
PI Advanced Materials Co., Ltd., formerly known as
SKC Kolon PI, Inc. (“SKPI”) filed a declaratory judgment
action against Kaneka Corp. (“Kaneka”) in the United
States District Court for the Central District of California
seeking a declaration of non-infringement of Kaneka’s U.S.
Patent No. 7,691,961 (“the ’961 patent”). Kaneka counter-
claimed for induced infringement of the ’961 patent and
U.S. Patent Nos. 9,441,082 (“the ’082 patent”) and
6,264,866 (“the ’866 patent”).
The district court granted summary judgment of non-
infringement. For the SKPI products at issue on appeal,
the district court concluded that no reasonable jury could
find that they were imported into the United States, which
meant that Kaneka could not prove the underlying direct
infringement essential to its inducement claims. Kaneka
appeals. We affirm.
BACKGROUND
I
Kaneka and SKPI are competitors in the manufacture
and sale of polyimide film, which is used in mobile phones.
The film is incorporated into mobile phones through a mul-
titiered supply chain. First, a polyimide film manufac-
turer, such as Kaneka or SKPI, makes the film and sells it
to a laminate manufacturer. Second, the laminate manu-
facturer laminates the film to form flexible copper clad lam-
inates (“FCCLs”) and sells those to a circuit board
manufacturer. Third, the circuit board manufacturer uses
the FCCLs to make flexible printed circuit boards (“FPCs”)
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PI ADVANCED MATERIALS CO., LTD v. KANEKA CORPORATION 3
and sells those to a module maker. 1 Fourth, the module
maker incorporates the FPCs into modules (i.e., compo-
nents of a mobile phone, such as a display or camera) and
sells the modules to a set manufacturer. Fifth, and finally,
the set manufacturer (e.g., Apple or Samsung Electronics)
incorporates the modules into mobile phones.
Kaneka and SKPI have litigated before. In Kaneka
Corp. v. SKC Kolon PI, Inc., No. 2:11-cv-03397 (C.D. Cal.)
(“the 3397 case”), Kaneka alleged that SKPI induced in-
fringement of the ’961 patent (among others) in the form of
U.S. importation of certain accused SKPI films—in partic-
ular, certain film types bearing prefixes “IF,” “LN,” and
“LV” (collectively, “the older films”). In that case, Kaneka
relied on its expert Mr. Napper to trace the amount of
square meters of the older films that was reasonably likely
to have progressed through each stage of the supply chain.
In November 2015, a jury found that SKPI induced in-
fringement of the ’961 patent as to the older films.
Following the jury verdict, in January 2016, SKPI an-
nounced to its customers that “through its continued R&D
efforts, [it] ha[d] developed more efficient and stable man-
ufacturing processes . . . to provide polyimide films with
improved film properties and cost savings to its custom-
ers.” J.A. 16199. SKPI also informed its customers that
“[w]ith this change, . . . the existing product types IF and
LN, and LV will be supplied as types GF and GV respec-
tively which are the new integrated nomenclatures.”
J.A. 16199.
II
SKPI filed the present action in August 2016, seeking
a declaratory judgment that its alleged redesigned films do
1 Laminate manufacturers (i.e., entities in the sec-
ond step of the supply chain) may also use polyimide film
to produce coverlay, which is used to protect FPCs.
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4 PI ADVANCED MATERIALS CO., LTD v. KANEKA CORPORATION
not practice the claims of the ’961 patent and that its ac-
tions relating to those films do not infringe the patent.
Kaneka counterclaimed for induced infringement of the
’961, ’082, and ’866 patents. Kaneka’s infringement allega-
tions concerned ten SKPI film types relevant here: GF030
(7.5 µm), GF040 (10 µm), GF050 (12.5 µm), GF100 (25 µm),
GF200 (50 µm), GF300 (75 µm), GV050 (12.5 µm), GV100
(25 µm), GV200 (50 µm), and GV300 (75 µm) (collectively,
“the accused films”). 2 It is undisputed that SKPI did not
begin making and selling the accused films before January
2016.
Following fact and expert discovery, SKPI moved for
summary judgment of non-infringement. SKPI argued
that Kaneka could not prove the direct infringement re-
quired for its inducement claim because it lacked evidence
that the accused films were imported into the United
States. After holding two hearings on the summary-judg-
ment motion, as well as entertaining a supplemental brief
from Kaneka (and a response from SKPI), the district court
issued a thorough order granting summary judgment for
SKPI.
As to the accused films generally, the district court be-
gan by observing that Kaneka lacked any direct evidence
of importation; rather, it presented only circumstantial ev-
idence about the supply chain from SKPI’s manufacture of
the films to the mobile phones that are ultimately imported
into the United States. The court also contrasted the evi-
dence of importation in this case with that presented in the
3397 case. It noted that, unlike the 3397 case, where
Mr. Napper’s expert report contained “some significant
2 Although Kaneka accused additional film types as
infringing, the district court granted summary judgment
for SKPI as to these types (albeit on different grounds),
J.A. 21308–09, and Kaneka has not appealed the summary
judgment as to these types.
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PI ADVANCED MATERIALS CO., LTD v. KANEKA CORPORATION 5
analysis” tracing the amount of square meters of the film
at issue that was reasonably likely to have progressed
through each stage of the supply chain, “neither [Mr.] Nap-
per nor Kaneka’s infringement expert . . . present[s] a com-
parable analysis.” J.A. 21310. Indeed, the court noted that
Kaneka’s infringement expert report did “not address the
issue of whether the accused films are imported into the
United States at all.” J.A. 21310.
The court then analyzed the evidence Kaneka did put
forth. Although Kaneka emphasized SKPI’s relationship
with two large Korean FCCL manufacturers, the court ob-
served that Kaneka lacked evidence about what happens
to the accused films next—including whether the FPC and
module makers use other film or other FCCL manufactur-
ers (including from outside Korea), or whether there was a
specific thought process relating to what mobile phones
with what materials from certain suppliers would be sold
where. The court also noted that Kaneka’s estimates of
SKPI’s market share and other general statistics were
“overwhelmingly based” on evidence that pre-dated when
SKPI actually began making and selling the accused films.
See J.A. 21313. After carefully considering Kaneka’s evi-
dence, the court deemed it insufficient to raise a question
of material fact to support Kaneka’s inducement claims.
J.A. 21316.
The court further considered Kaneka’s argument that,
for two accused film types in particular—the GF050
(12.5 µm) and GF100 (25 µm)—SKPI was the exclusive
supplier of film for certain types of mobile phones sold in
the United States. But the court determined that this ar-
gument rested on inadmissible hearsay testimony.
J.A. 21316. It ultimately concluded that, “[a]s with the
other general evidence Kaneka submit[ted], [Kaneka] has
not provided enough to support an induced infringement
claim for these two films.” J.A. 21316–17.
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6 PI ADVANCED MATERIALS CO., LTD v. KANEKA CORPORATION
The district court entered judgment for SKPI. Kaneka
timely appealed. We have jurisdiction under 28 U.S.C.
§ 1295(a)(1).
DISCUSSION
We review a grant of summary judgment under the law
of the regional circuit—here, the Ninth Circuit, which re-
views such grants de novo. Spigen Korea Co. v. Ultraproof,
Inc., 955 F.3d 1379, 1382–83 (Fed. Cir. 2020) (first citing
Cheetah Omni LLC v. AT&T Servs., Inc., 949 F.3d 691, 693
(Fed. Cir. 2020); and then citing L. F. v. Lake Wash. Sch.
Dist. #414, 947 F.3d 621, 625 (9th Cir. 2020)). Summary
judgment is appropriate if after viewing the evidence in the
light most favorable to the nonmoving party and drawing
all reasonable inferences in its favor, no genuine issue of
material fact exists. Pauma Band of Luiseno Mission Indi-
ans of the Pauma & Yuima Rsrv. v. California, 973 F.3d
953, 961 (9th Cir. 2020). A fact issue is genuine “if the ev-
idence is such that a reasonable jury could return a verdict
for the nonmoving party.” Anderson v. Liberty Lobby, Inc.,
477 U.S. 242, 248 (1986).
We first address Kaneka’s arguments as to importation
of the accused films generally, then its exclusive-supplier
arguments as to the GF050 (12.5 µm) and GF100 (25 µm)
films specifically.
I
Kaneka’s importation case for the accused films largely
rests on the evidence and findings from the 3397 case.
Kaneka begins by arguing that the accused films are “the
same” as the older films found to infringe in the 3397 case.
See Appellant’s Br. 18–23. We agree with the district court,
however, that Kaneka has not put forth sufficient evidence
to create a triable issue of fact as to the accused films being
“the same” as the older film, different in name only.
J.A. 21315.
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PI ADVANCED MATERIALS CO., LTD v. KANEKA CORPORATION 7
For example, Kaneka says that its infringement expert
tested the accused films and determined that they “con-
tinue[] to infringe . . . just as [the older films] did.” Appel-
lant’s Br. 20. To the extent that this phrasing suggests that
Kaneka’s infringement expert compared the two sets of
film to one another, that is not so. The cited portion of
Kaneka’s infringement expert report says nothing of any
actual comparison, and indeed, as SKPI notes, Kaneka’s
infringement expert did not compare the accused films to
the older films at all. See J.A. 21315 (district court likewise
observing that Kaneka did not “present an expert opinion
. . . that the old and [accused] films are, indeed, the same
films”).
In its reply brief, Kaneka says that whether the older
films are identical to the accused films is a “red herring”; it
focuses more on whether the films are the same with re-
spect to the manner in which they are distributed. Reply
Br. 11; see id. at 12 (“[T]he evidence shows that the
[a]ccused [f]ilms replaced the [older films] to the same cus-
tomers in the same supply chain.”). As to the accused films’
distribution, Kaneka again relies on the supply chain it es-
tablished in the 3397 case for the older films. Yet, as the
district court noted (and as Kaneka does not dispute),
Kaneka presented no comparable expert analysis of the
supply chain in this case. And having examined the evi-
dence Kaneka has put forth, we reach the same conclusion
as the district court: Kaneka’s evidence lacks necessary in-
formation about what happens in the downstream supply-
chain stages, or is otherwise stale—dating from a time (of-
ten years) before the accused films came to market. See
J.A. 21312–16. Even viewing the evidence in the light most
favorable to Kaneka and drawing all reasonable inferences
in its favor, we agree that Kaneka has not provided suffi-
cient evidence to create a triable issue of fact as to U.S. im-
portation of the accused films generally.
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8 PI ADVANCED MATERIALS CO., LTD v. KANEKA CORPORATION
II
Kaneka also contends that SKPI is the exclusive film
supplier for certain types of mobile phones sold in the
United States. This argument is relevant to SKPI’s GF050
(12.5 µm) and GF100 (25 µm) accused films in particular.
Specifically, Kaneka argues that (1) SKPI supplies 100% of
the polyimide film that module maker Samsung Display
Company (“SDC”) uses for coverlay in its OLED displays
(for ultimate use in certain Apple and Samsung Electronics
mobile phones); (2) the GF050 (12.5 µm) and GF100
(25 µm) films were used for that purpose; and (3) SDC is
the sole supplier of OLED displays for these particular Ap-
ple and Samsung Electronics mobile phones, which are
types sold in the United States.
Kaneka supports this argument with testimony from
one of its employees, Mr. Tsuji. Mr. Tsuji testified that
“SKPI is the only company SDC certifies and uses” for pol-
yimide film for its OLED displays. J.A. 16857–58. Accord-
ing to Mr. Tsuji, the source of his understanding in this
regard came from people at other companies. See
J.A. 19503–06. Before the district court, SKPI argued that
this testimony from Mr. Tsuji was inadmissible hearsay.
The district court agreed; it rejected Kaneka’s exclusive-
supplier argument as based on “inadmissible hearsay tes-
timony” as well as other evidence that did not support
SKPI’s alleged exclusivity. J.A. 21316–17. We see no
abuse of discretion or other error in the district court’s
characterization of this testimony as inadmissible hearsay.
See Block v. City of Los Angeles, 253 F.3d 410, 416 (9th Cir.
2001) (“Evidentiary decisions made in the context of sum-
mary judgment motions are reviewed for an abuse of dis-
cretion.”).
On appeal, Kaneka advances arguments for why
Mr. Tsuji’s testimony as to SKPI’s exclusivity is not hear-
say. For example, it argues that Mr. Tsuji’s testimony is
not hearsay because it constitutes a businessman’s
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PI ADVANCED MATERIALS CO., LTD v. KANEKA CORPORATION 9
assessment, acquired through “perceptions based on indus-
try experience.” Reply Br. 23 (first citing Agfa-Gevaert,
A.G. v. A.B. Dick Co., 879 F.2d 1518, 1523 (7th Cir. 1989);
and then quoting Burlington N. R.R. Co. v. Nebraska,
802 F.2d 994, 1004–05 (8th Cir. 1986)); see also Appellant’s
Br. 42–43. SKPI responds that Kaneka waived (or rather,
forfeited) these arguments by not raising or developing
them below. We agree with SKPI.
The history of the summary-judgment proceedings is
illuminating here. SKPI argued—in both its motion for
summary judgment and its reply in support thereof—that
Kaneka’s exclusive-supplier argument rested on Mr.
Tsuji’s hearsay discussions with others. J.A. 8019–20;
J.A. 12670–72 & n.6 (“Kaneka cannot cure the hearsay na-
ture of these conversations merely by naming the employ-
ers of the third parties with whom [Mr. Tsuji] spoke, even
if those employers are alleged Kaneka customers.”). On the
day of the first hearing, the district court issued a tentative
order expressing concern with the evidentiary foundation
for the fact of SKPI’s exclusive-supplier status.
J.A. 19683–85. This issue was discussed at that hearing.
J.A. 19738–39. The court then let Kaneka file supple-
mental papers. Kaneka’s supplemental brief dedicated two
sentences to its exclusive-supplier argument, followed by a
string citation consisting mostly of portions of Mr. Tsuji’s
deposition testimony, J.A. 20066—all of which SKPI had
already challenged as hearsay. SKPI’s response to
Kaneka’s supplemental brief again argued that Kaneka’s
cited deposition testimony was hearsay. J.A. 20170–71,
20192–93. And then, at the second hearing, “[t]he parties
did not further address the concerns regarding the evi-
dence relating to these two films.” J.A. 21316. At no point
in Kaneka’s multiple filings or the multiple hearings did
Kaneka raise or develop the arguments it makes here as to
why Mr. Tsuji’s testimony was not hearsay. We therefore
deem those arguments forfeited. See Fresenius USA, Inc.
v. Baxter Int’l, Inc., 582 F.3d 1288, 1296 (Fed. Cir. 2009)
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10 PI ADVANCED MATERIALS CO., LTD v. KANEKA CORPORATION
(noting that “[i]f a party fails to raise an argument before
the trial court, or presents only a skeletal or undeveloped
argument to the trial court, we may deem that argument
waived on appeal”).
Kaneka also develops its exclusive-supplier argument
in a different way. Kaneka argues that (1) it and SKPI are
effectively a Korean duopoly in terms of polyimide film
used for coverlay; (2) SDC sources its polyimide film used
for coverlay only from Korea; and (3) SDC has certified only
SKPI for polyimide film used for coverlay, which Kaneka
deduces because it has been unable to secure certification
for itself. SKPI again argues that Kaneka forfeited this ar-
gument by not raising or developing it before the district
court. Again, we agree. Even if we were to set aside that
this argument relies on testimony from Mr. Tsuji that
SKPI argued was hearsay (an issue discussed above), 3
Kaneka’s filings failed to adequately develop this argu-
ment to the district court. We therefore deem it forfeited.
See Fresenius, 582 F.3d at 1296.
CONCLUSION
We have considered Kaneka’s other arguments and
find them unpersuasive. For the foregoing reasons, we af-
firm the district court’s grant of summary judgment.
AFFIRMED
3 Compare Appellant’s Br. 39–40 (collecting citations
to portions of Mr. Tsuji’s deposition testimony), with
J.A. 12670, and J.A. 20192–93.