Inventor
NARISAWA YOSHIYUKI
JP8 patents
Patents
8 patentsUS6041128AMar 21, 2000
Battery receiving chamber and hearing aid
RION CO119 citations97
US5347584ASep 13, 1994
Hearing aid
RION CO198 citations97
USD354568SJan 17, 1995
Hearing aid
RION CO86 citations96
US5187746AFeb 16, 1993
Structure of battery receiving chamber
RION CO135 citations96
USD375556SNov 12, 1996
Hearing aid
RION CO19 citations92
USD368309SMar 26, 1996
Earplug for a hearing aid
RION CO22 citations91
USD497001SOct 5, 2004
Hearing aid
RION CO16 citations81
USD497000SOct 5, 2004
Hearing aid
RION CO8 citations71