Patents Assigned to Matsushite Electric Industrial Co., Ltd.
  • Patent number: 7046919
    Abstract: The present invention is intended to provide an aroma device that can eliminate the need for the replacement of the light source, can prevent the light source from becoming high in temperature and can allow light and aroma to be enjoyed comfortably with a sense of security for a long time. The aroma device uses, as a light source, LEDs 1 covered with first and second covers 3 and 4, and also uses a heater 5 to heat a material 10 to be heated which emits aroma; hence, the need for the replacement of the light source is eliminated, the light source is prevented from becoming high in temperature, and light and aroma can be enjoyed comfortably with a sense of security for a long time.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: May 16, 2006
    Assignee: Matsushite Electric Industrial Co., Ltd.
    Inventors: Satoshi Shimizu, Takao Kanba, Haruo Ishikawa, Kiyonori Itou