Development of High-Quality Inexpensive Hearing Aid and Popularization of Hearing Assistance System

  • Norio Nakanishi
  • Tamotsu Noda


Regarding Senile Hearing Hardness: Of those who purchased hearing aid in 2003 90% were elderly people older than 60 years. It has been estimated in Japan that 25% of the population will be above 65 years old a decade later and that the ratio would go up still higher after that. In other words, the elderly increases its importance. This means that society requires activity of the elderly. For the elderly to take an active part in society, positive measures of communication are essential.


Elderly People Public Facility Magnetic Loop Auditory Sense Wrong Expectation 
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    Proceedings of Symposium “Hearing Aid System and Rehabilitation”Google Scholar
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    LDI Report of Life Design InstituteGoogle Scholar
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    “Background to Be Known for Purchase of Hearing Aid”: Report by Dr. Hiroshi Hattori, Emeritus Prof, of Kobe UniversityGoogle Scholar
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    Survey reports by JETRO, various centers in U.S.A. and in Stockholm.Google Scholar

Copyright information

© Springer-Verlag Tokyo 2004

Authors and Affiliations

  • Norio Nakanishi
    • 1
  • Tamotsu Noda
    • 2
  1. 1.Copin IncorporatedJapan
  2. 2.Toyohashi Univ. of TechnologyJapan

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