Exhibit 99.1

             Immersion Wins Patent Infringement Trial Against Sony

    SAN JOSE, Calif.--(BUSINESS WIRE)--Sept. 21, 2004--Immersion
Corporation (Nasdaq:IMMR), a leading developer and licensor of touch
feedback technology, today announced that the jury returned a verdict
favorable to Immersion in its patent infringement suit against Sony
Computer Entertainment, Inc. and Sony Computer Entertainment of
America, Inc. (Sony). The jury found that Sony infringed all the
asserted claims of U.S. Patent Nos. 6,275,213 and 6,424,333 and that
those claims were valid. The verdict also awarded Immersion damages in
the amount of $82.0 million. A judgment has not yet been entered, and
Immersion expects that post-trial motions and other actions by Sony
will be filed with the Court with respect to the jury's decision and
other matters. Immersion intends to ask the court to issue a permanent
injunction to enjoin Sony's continued infringement. After judgment has
been entered, the case may be appealed to the U.S. Court of Appeals
for the Federal Circuit.
    Immersion will also hold a conference call regarding the verdict
beginning at 1:30 p.m. Pacific Time on September 22, 2004.
    Those wishing to participate in the call should call +1
800.374.2366 (U.S./Canada) or +1 706.634.7540 (international)
approximately five minutes prior to the start of the call and
reference confirmation number 60353. A replay of the call will be
available until 8:59 p.m. Pacific Time on September 26, 2004 by
dialing +1 800.642.1687 (U.S./Canada) or +1 706.645.9291
(international) and entering confirmation number 60353.
    A webcast of the conference call will be available at
www.immersion.com. Please visit Immersion's Web site at least 15
minutes prior to register, download, and install any necessary audio
software. A replay of the webcast will also be made available for one
year following the call within the investor relations section of
Immersion's corporate Web site.

    About Immersion (www.immersion.com)

    Founded in 1993, Immersion Corporation is a recognized leader in
developing, licensing, and marketing digital touch technology and
products. Bringing value to markets where man-machine interaction
needs to be made more compelling, safer, or productive, Immersion
helps its partners broaden market reach by making the use of touch
feedback as critical a user experience as sight and sound. Immersion's
technology is deployed across personal computing, entertainment,
medical training, automotive, and 3D simulation markets. Immersion and
its wholly-owned subsidiaries hold more than 230 issued patents
worldwide.

    Forward Looking Statements

    This press release contains "forward-looking statements" that
involve risks and uncertainties, as well as assumptions that, if they
never materialize or prove incorrect, could cause the results of
Immersion Corporation and its consolidated subsidiaries to differ
materially from those expressed or implied by such forward-looking
statements.
    All statements, other than the statements of historical fact, are
statements that may be deemed forward-looking statements, including
any projections or statements regarding future legal actions, plans,
strategies, and/or objectives of management for future operations; and
any statement or assumptions underlying any of the foregoing.
Immersion's actual results might differ materially from those stated
or implied by such forward-looking statements due to risks and
uncertainties associated with Immersion's business.
    For a more detailed discussion of these factors, and other factors
that could cause the Company's actual results to vary materially,
interested parties should review the risk factors listed in the
Company's most current Form 10-K and Forms 10-Q, which are on file
with the U.S. Securities and Exchange Commission. The forward-looking
statements in this press release reflect the Company's beliefs and
predictions as of the date of this release. The Company disclaims any
obligation to update these forward-looking statements as a result of
financial, business, or any other developments occurring after the
date of this release.
    Immersion is a trademark of Immersion Corporation. All other
trademarks are the property of their respective owners.


    CONTACT: A&R Partners
             Elizabeth Conrady, 650-762-2815
             econrady@arpartners.com