Inventor · disambiguated record
Fumio Murayama
Also filed as: MURAYAMA FUMIO
17 granted patents·1 pending application·406 citations·filing 1974–2002
95Inventor score
Top patents by PatentIndex Score
18 records- 0183US4965837AEnvironmentally resistant loudspeakerPIONEER ELECTRONIC CORP·Filed 1989·Granted Oct 23, 1990·100 cites·6 claims
- 0280US4073762AAqueous epoxy resin paint compositionHOSODA MINORU·Filed 1976·Granted Feb 14, 1978·27 cites·7 claims
- 0378US3983056AAqueous epoxy resin paint compositionDAINIPPON TORYO KK·Filed 1974·Granted Sep 28, 1976·19 cites·7 claims
- 0477US6665414B1Speaker system and cooling device thereforPIONEER CORP·Filed 2000·Granted Dec 16, 2003·23 cites·25 claims
- 0575US4821331ACoaxial speaker unitPIONEER ELECTRONIC CORP·Filed 1988·Granted Apr 11, 1989·58 cites·5 claims
- 0668US6817084B2Method for manufacturing a speaker apparatusPIONEER ELECTRONIC CORP·Filed 2002·Granted Nov 16, 2004·12 cites·6 claims
- 0766US4104223AAqueous epoxy resin paint compositionDAINIPPON TORYO KK·Filed 1976·Granted Aug 1, 1978·15 cites·8 claims
- 0862US5008945AWater-proof speaker unitPIONEER ELECTRONIC CORP·Filed 1988·Granted Apr 16, 1991·34 cites·3 claims
- 0955US4451928AMulti-speaker system for use in automobilesPIONEER ELECTRONIC CORP·Filed 1982·Granted May 29, 1984·20 cites·12 claims
- 1054US6343136B2Speaker apparatus and manufacturing method thereofPIONEER ELECTRONIC CORP·Filed 1998·Granted Jan 29, 2002·23 cites·22 claims
- 1154US5793002ALoudspeaker vibrating diaphragm and methods for its productionPIONEER ELECTRONIC CORP·Filed 1997·Granted Aug 11, 1998·21 cites·3 claims
- 1245US5297212ALoudspeaker system installed on an automobile door and including a woofer and a tweeterPIONEER ELECTRONIC CORP·Filed 1989·Granted Mar 22, 1994·18 cites·4 claims
- 1344US4953220AMobile speaker system having an illumination effectPIONEER ELECTRONIC CORP·Filed 1988·Granted Aug 28, 1990·11 cites·10 claims
- 1441US2002057818A1Speaker apparatusFiled 2001·Application pending·0 cites
- 1536US6030561AMethods for making a loudspeaker vibrating diaphragmPIONEER ELECTRONIC CORP·Filed 1998·Granted Feb 29, 2000·7 cites·12 claims
- 1634US4837835ASpeaker system for motor vehicles with an alarm devicePIONEER ELECTRONIC CORP·Filed 1988·Granted Jun 6, 1989·4 cites·3 claims
- 1732US4924965ASpeaker systemPIONEER ELECTRONIC CORP·Filed 1989·Granted May 15, 1990·5 cites·5 claims
- 1831US5822444ALoudspeakerPIONEER ELECTRONIC CORP·Filed 1996·Granted Oct 13, 1998·9 cites·2 claims
Join the waitlist — get patent alerts
Get an alert when Fumio Murayama files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →