Cell Renewal Example

<p>This Map also uses “problems to be solved by the invention” and “means for solving the

problems” as aspects for analysis.

The Patent Map shows that technological development is concentrated on the art which involves

“improvement of capacity for regeneration,” “improvement of therapy,” “improvement of

differentiation, induction and control” and “improvement of cell collection.”

On the other hand, the map includes “improvement of physical methods,” “improvement of

method of transplantation” and “use of gene transfer” as means for solving the problems. The art in

which “improvement of physical methods” is used as the means for “improvement of differentiation,

induction and control” and for which many patent applications were filed has attracted attention.

However, it may be very difficult to enter this field as it has been covered by many patents.

The fact that very few patent applications have been filed in the art does not necessarily mean

that the field of art is unpopular. Rather, it means that a company involved in development could

enter this field without causing undue trouble.</p>