| Title |
An Analysis of the Patent for Highly Efficient Absorption Refrigeration System |
| Keywords |
Absorption ; 흡수식 ; Refrigeration system ; 냉동기 ; Patent ; 특허 ; International patent classification ; IPC, 국제특허분류코드 |
| Abstract |
A technical analysis was conducted to predict the development trend for the highly efficient absorption type refrigeration system. The study was based on a submitted patent during January 1981 and December 2000 in Korea, Japan and America. The total number of extruded patents from the registered database was 24,822 and the filtering process makes the reduction of the data number to 3,510.
Technical development of Japan for the absorption type refrigeration system is prominent compared to the other country due to approximately 75% of the patents coming from Japan. When the patent is divided into two categories, the patent for component technology for the refrigeration system makes up 75% and the refrigerating type technology 25% of the patents. This shows technical development for the system component is advanced compared to the technology development for the system type. When the patents are classified by nationality of patent applicants, foreigners contribute up to 33% of the patents in Korea. However, Japan's case shows the 99% of the patents are invented by the Japanese. If the patents are classified to the International Patent Classification, most of the data for the absorption type refrigeration system belongs to IPC F25B. |