Ken Iwayama

Person

Nishinomiya, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Speaker system and speaker cluster system
- Patent number 8,165,334
- Issue date Apr 24, 2012
- TOA Corporation
- Ken Iwayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wide dispersion speaker system and cover mounting structure for ins...
- Patent number 7,840,024
- Issue date Nov 23, 2010
- TOA Corporation
- Ken Iwayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Mounting support device for ceiling embedded speaker system
- Patent number 7,401,681
- Issue date Jul 22, 2008
- TOA Corportion
- Ken Iwayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wide dispersion speaker system and cover mounting structure for ins...
- Patent number 7,324,656
- Issue date Jan 29, 2008
- TOA Corporation
- Ken Iwayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker housing
- Patent number D531986
- Issue date Nov 14, 2006
- Toa Kabushiki Kaisha/Toa Corporation
- Shin Azumi
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Loudspeaker
- Patent number D492286
- Issue date Jun 29, 2004
- TOA Kabushiki Kaisha
- Shin Azumi
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Horn loudspeaker
- Patent number 6,658,128
- Issue date Dec 2, 2003
- TOA Corporation
- Tsutomu Yoshioka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker apparatus
- Patent number 6,580,801
- Issue date Jun 17, 2003
- TOA Corporation
- Tsuyoshi Takagi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Speaker System and Speaker Cluster System
- Publication number 20080192964
- Publication date Aug 14, 2008
- TOA CORPORATION
- Ken Iwayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wide Dispersion Speaker System and Cover Mounting Structure for Ins...
- Publication number 20080137900
- Publication date Jun 12, 2008
- TOA CORPORATION
- Ken Iwayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Mounting support device for ceiling embedded speaker system
- Publication number 20060231326
- Publication date Oct 19, 2006
- TOA CORPORATION
- Ken Iwayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wide directionality speaker system, and cover attaching constructio...
- Publication number 20060159299
- Publication date Jul 20, 2006
- TOA CORPORATION
- Ken Iwayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Ken Iwayama

Person

Patents Grantslast 30 patents

Speaker system and speaker cluster system

Wide dispersion speaker system and cover mounting structure for ins...

Mounting support device for ceiling embedded speaker system

Wide dispersion speaker system and cover mounting structure for ins...

Loudspeaker housing

Loudspeaker

Horn loudspeaker

Loudspeaker apparatus

Patents Applicationslast 30 patents

Speaker System and Speaker Cluster System

Wide Dispersion Speaker System and Cover Mounting Structure for Ins...

Mounting support device for ceiling embedded speaker system

Wide directionality speaker system, and cover attaching constructio...