Patent Status

Crucially necessary inventions for realizing SDV drives and human-powered vehicles have been granted patents in the following seven major countries:

Countries
Patent Number
Title
USA US RE40,127 E HUMAN-POWERED DRIVING MECHANISM
United Kingdom EP(UK)1116646 MANUALLY DRIVEN MECHANISM
Germany 699 21 345.2-08 MANUALLY DRIVEN MECHANISM
France E 1 116 646 MANUALLY DRIVEN MECHANISM
Italy 51306BE2004 MANUALLY DRIVEN MECHANISM
Japan 3282077
4156823
HUMAN-POWERED DRIVING MECHANISM

Technical Background

An English paper on SDV is published on eJournal.
The paper is based on the one published on the Journal of the Japan Society of Mechanical Engineers, Vol.105 No. 1003. This will give you thorough scientific understanding on SDV.