Why patent is needed? in videogame market?

I will answer this question. from the standpoint of manager or game planner or game programmer.

Contents
○　what is patent?
・Why patent is needed? in videogame market?
・ Are you Inventor or Reformist?
・ In world market, Is Patent needed?
・ Trend of patent application.
・ For Subcontractor, Is patent needed?

○ For game planner
・ Can we get patent about game Idea or gamesystem.
・ Patent about technology from sequel to the game.
・ What is special value in your game?
・ What is difference in your game?

○ For game programmer,
・ Is your technique new?
・ Is your technique safe?
・ How to escape patent infringement
・ Which is important? The visible patent or invisible patent.

○ For Manager
・　Does your company need patent?
・ Most Important matter is relation ship about management strategy and patent strategy.
・ You must make purpose clear to get patent.
・ It become competitive in market, you note the importance of patent.
・ What is your company’s purpose to get patent?