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Hello Kitty Lawsuit TrackerUnofficial Sanrio Legal Archive
Case fileReal

Illustrator v. Sanrio (Kero Kero Keroppi)

An artist accused Sanrio of copying his cartoon frog to make Keroppi. The courts said drawing a frog like a person is an idea, not protected expression.

An illustrator (individual),
Plaintiff,
v.
Sanrio Company, Ltd.,
Defendant.
Docket No.Tokyo District Court, Heisei 12 (ワ) No. 4632
CourtTokyo District Court; affirmed by the Tokyo High Court
Filed2000
StatusDecided

The record

Court
Tokyo District Court; affirmed by the Tokyo High Court
Jurisdiction
Japan
Docket No.
Tokyo District Court, Heisei 12 (ワ) No. 4632
Filed
2000
Resolved
2001
Sanrio’s role
Defendant
Type
Copyright
Claims
Copyright infringement — alleged copying of an anthropomorphized-frog artwork
Counsel — plaintiff/petitioner
not public
Counsel — Sanrio side
not public

What happened

An artist accused Sanrio of copying his cartoon frog to make Keroppi. The courts said drawing a frog like a person is an idea, not protected expression.

Outcome

Claim dismissed (first instance 29 Aug 2000; appeal 23 Jan 2001). Anthropomorphizing a frog was held an unprotectable idea and the designs differed materially. Sanrio won.

The legal nuance

The idea/expression line, the same principle at the heart of the Cathy and Kuromi disputes, decided here in Sanrio’s favor.

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