Inventor

CHAI TOSHIAKI

JP3 patents

⚠️ This page may combine multiple inventors who share the name “CHAI TOSHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CADIX INC

1 patent

US6393138B1May 21, 2002

Method of creating registration signature data for computerized signature collation scheme

CADIX INC51 citations88

KATAGIRI MASAJI

1 patent

US6947029B2Sep 20, 2005

Handwritten data input device and method, and authenticating device and method

KATAGIRI MASAJI31 citations87

CYBER SIGN JAPAN INC

1 patent

US6563939B1May 13, 2003

Electronic signature verification method and system

CYBER SIGN JAPAN INC23 citations84