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				2017.6.21 The business activity for BCE500 series, Canal type Bone Conduction Earphone, has commenced. Detailed Information(PDF File) 2016.11.25 The patent for "Electromagnetic type Acoustic Transducer for Earphone" is granted by the Patent Office. Patent No.6032984 Detailed Information(PDF File) 2016.9.15 The business activity for N20 No spout driver unit has commenced. Detailed Information(PDF File) 2016.6.16 OFC Voice Coil Driver Unit for N20 series is now in mass production and ready for sale. Detailed Information(PDF File) 2015.9.30 Yashima original 1-magnetic pole type magnetic driver (EMD): Sales activities started. Detailed Information(PDF File) 2015.5.13 N20 Series - Solid silver coil started in mass production.: Business activity began. Detailed Information(PDF File) 2015.4.1 N20-5: Business activity began. Detailed Information(PDF File) 2010.10.25 Model Name in Specification for Mass Production: N20-2 Detailed Information(PDF File) 2010.10.25 Update Technical Information 2009.03.18 Update Technical Information 2007.05.22 Ear Canal, Balanced Armature Type, Start of Sales Activity. Detailed Information(PDF File) Technical Information 2007.04.02 This web site has been newly established.