Membership
Tour
Register
Log in
Tadashi Aoki
Follow
Person
Aichi, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Thermally color-changeable toy
Patent number
5,716,253
Issue date
Feb 10, 1998
The Pilot Ink Co., Ltd.
Tadashi Aoki
A63 - SPORTS GAMES AMUSEMENTS