from the United States Patent and Trademark Office, Patent
Trial and Appeal Board in No. IPR2015-00564.
Andrew Doughty, Oblon, McClelland, Maier & Neustadt, LLP,
Alexandria, VA, argued for appellant. Also represented by
Richard Kelly, Yuki Onoe.
P. Arroyo, Alston & Bird LLP, Charlotte, NC, argued for
appellee. Also represented by Robert Flynt Strean.
Prost, Chief Judge, O'Malley, and Chen, Circuit Judges.
O'Malley, Circuit Judge.
Kosan Co., Ltd. ("Idemitsu") seeks review of the
July 29, 2016 decision of the Patent Trial and Appeal Board
("the Board") finding claims 1-5, 7-11, 13, and 14
of U.S. Patent No. 8, 334, 648 ("the '648
patent") invalid as obvious over International
Publication WO 02/052904 ("Arakane"). See SFC
Co. Ltd. v. Idemitsu Kosan Co., Ltd., No. IPR2015-00564,
2016 Pat. App. LEXIS 13340 (P.T.AB. July 29, 2016). For the
following reasons, we affirm.
is the owner of the '648 patent, titled "Organic
Electroluminescence Device and Organic Light Emitting
Medium." In brief, the '648 patent claims a device
containing a particular organic medium layered between an
anode and cathode; when a voltage is applied through the
electrodes, the organic medium emits light. See
'648 Patent, at Abstract. Claim 1 is representative:
1. An electroluminescence device comprising a pair of
electrodes and a layer of an organic light emitting medium
disposed between the pair of electrodes, wherein the layer of
an organic light emitting medium is present as a light
emitting layer and comprises:
(A) an arylamine compound represented by formula V:
wherein X3 is a substituted or unsubstituted py-rene residue,
Ar5 and Ar6 each independently represent a substituted or
unsubstituted monovalent aromatic group having 6 to 40 carbon
atoms, and p represents an integer of 1 to 4; and
(B) at least one compound selected from the group consisting
of anthracene derivatives and spiroflu-orene derivatives,
wherein said anthracene derivatives are represented by
wherein A1 and A2 may be the same or different and each
independently represent a substituted or unsubstituted
monophenylanthryl group or a substituted or unsubstituted
diphenylanthryl group, and L represents a single ...