Koji Wakamatsu

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Hiroshima-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Speaker disposition structure of vehicle
- Patent number 11,745,668
- Issue date Sep 5, 2023
- Mazda Motor Corporation
- Kiyoshi Mutsura
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Speaker disposition structure of vehicle
- Patent number 11,535,171
- Issue date Dec 27, 2022
- Mazda Motor Corporation
- Kiyoshi Mutsura
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Vehicle speaker disposition structure
- Patent number 10,981,516
- Issue date Apr 20, 2021
- Mazda Motor Corporation
- Yuki Kataoka
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Sound system for vehicle
- Patent number 10,583,788
- Issue date Mar 10, 2020
- Mazda Motor Corporation
- Isao Toda
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Sound system for vehicle
- Patent number 10,165,354
- Issue date Dec 25, 2018
- Mazda Motor Corporation
- Isao Toda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SPEAKER DISPOSITION STRUCTURE OF VEHICLE
- Publication number 20220089099
- Publication date Mar 24, 2022
- MAZDA MOTOR CORPORATION
- Kiyoshi MUTSURA
- B60 - VEHICLES IN GENERAL
Information Patent Application
SPEAKER DISPOSITION STRUCTURE OF VEHICLE
- Publication number 20220089098
- Publication date Mar 24, 2022
- MAZDA MOTOR CORPORATION
- Kiyoshi MUTSURA
- B60 - VEHICLES IN GENERAL
Information Patent Application
VEHICLE SPEAKER DISPOSITION STRUCTURE
- Publication number 20200108781
- Publication date Apr 9, 2020
- MAZDA MOTOR CORPORATION
- Yuki KATAOKA
- B60 - VEHICLES IN GENERAL
Information Patent Application
SOUND SYSTEM FOR VEHICLE
- Publication number 20180376244
- Publication date Dec 27, 2018
- MAZDA MOTOR CORPORATION
- Isao Toda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SOUND SYSTEM FOR VEHICLE
- Publication number 20180326919
- Publication date Nov 15, 2018
- Mazda Motor Corporation
- Isao Toda
- B60 - VEHICLES IN GENERAL