Inventor
TOKURA KUNIHIKO
JP23 patents
⚠️ This page may combine multiple inventors who share the name “TOKURA KUNIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
22 patentsUS6274652B1Aug 14, 2001
Composite polymer materials and process for producing the same
SONY CORP19 citations92
US5972159AOct 26, 1999
Optical recording disc recycling method
SONY CORP23 citations92
US7726441B2Jun 1, 2010
Acoustic vibratory plate
SONY CORP20 citations84
US7332215B2Feb 19, 2008
Resin-molded component and method for manufacturing thereof as well as diaphragm for loudspeaker
SONY CORP11 citations84
US6410618B2Jun 25, 2002
Polymeric composite material and method of manufacturing the same
SONY CORP11 citations74
US5533134AJul 2, 1996
Motional feedback loudspeaker apparatus having a coupling member for connecting a voice coil bobbin with a detecting coil bobbin
SONY CORP14 citations74
US6686036B1Feb 3, 2004
Material for casing for acoustic equipment and casing for acoustic equipment fabricated therefrom
SONY CORP7 citations73
US6554962B2Apr 29, 2003
Loudspeaker diaphragm
SONY CORP10 citations73
US5590212ADec 31, 1996
Diaphragm for a capacitance type loudspeaker
SONY CORP9 citations69
US5180785AJan 19, 1993
Diaphragm and method for producing same
SONY CORP9 citations68
US7510627B2Mar 31, 2009
Acoustic paper diaphragm and acoustic transducer apparatus
SONY CORP2 citations63
US6071449AJun 6, 2000
Acoustic diaphragm molding metal mold apparatus and acoustic diaphragm molding method
SONY CORP3 citations63
US5445555AAug 29, 1995
Resin material reclaimed from optical recording disk and method of reclaiming same
SONY CORP4 citations63
US7708111B2May 4, 2010
Acoustic diaphragm and method for manufacturing an acoustic diaphragm
SONY CORP5 citations62
US5663220ASep 2, 1997
Acoustic vibrational material from fiber-reinforced polybutadiene-modified epoxy resin
SONY CORP4 citations62
US7980355B2Jul 19, 2011
Acoustic diaphragm, and method of fabricating acoustic diaphragm
SONY CORP3 citations61
US7546897B2Jun 16, 2009
Speaker diaphragm and method of manufacturing speaker diaphragm
SONY CORP6 citations61
US7576154B2Aug 18, 2009
Biodegradable material for audio systems
SONY CORP0 citations52
US7468141B2Dec 23, 2008
Method for decorating die surface as well as die
SONY CORP1 citations52
US6037411AMar 14, 2000
Acoustic vibrational material of fiber reinforcement with epoxy resin and epoxy-reactive polybutadiene
SONY CORP0 citations52
US7527124B2May 5, 2009
Loudspeaker diaphragm
SONY CORP0 citations51
US6752906B2Jun 22, 2004
Loudspeaker and method for the preparation thereof
SONY CORP0 citations51