Katsutoki HANAYAMA

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Hamamatsu-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Coaxial speaker horn, and coaxial speaker
- Patent number 12,225,342
- Issue date Feb 11, 2025
- Yamaha Corporation
- Katsutoki Hanayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Mounting tool and speaker device
- Patent number 10,972,818
- Issue date Apr 6, 2021
- Yamaha Corporation
- Katsutoki Hanayama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Speaker device
- Patent number 10,924,831
- Issue date Feb 16, 2021
- Yamaha Corporation
- Katsutoki Hanayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speaker unit mounting bracket, and installation speaker using the same
- Patent number 10,516,926
- Issue date Dec 24, 2019
- Yamaha Corporation
- Masanori Kamihara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speaker unit
- Patent number 9,843,848
- Issue date Dec 12, 2017
- Yamaha Corporation
- Hiroyuki Shiojima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speaker unit
- Patent number 9,774,937
- Issue date Sep 26, 2017
- Yamaha Corporation
- Hiroyuki Shiojima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Coaxial Speaker Horn, and Coaxial Speaker
- Publication number 20230128617
- Publication date Apr 27, 2023
- Yamaha Corporation
- Katsutoki HANAYAMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SPEAKER DEVICE
- Publication number 20200092624
- Publication date Mar 19, 2020
- Yamaha Corporation
- Katsutoki HANAYAMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MOUNTING TOOL AND SPEAKER DEVICE
- Publication number 20200084529
- Publication date Mar 12, 2020
- Yamaha Corporation
- Katsutoki HANAYAMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SPEAKER UNIT MOUNTING BRACKET, AND INSTALLATION SPEAKER USING THE SAME
- Publication number 20180242062
- Publication date Aug 23, 2018
- Yamaha Corporation
- Masanori KAMIHARA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SPEAKER UNIT
- Publication number 20160227306
- Publication date Aug 4, 2016
- Yamaha Corporation
- Hiroyuki SHIOJIMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SPEAKER UNIT
- Publication number 20160227307
- Publication date Aug 4, 2016
- Yamaha Corporation
- Hiroyuki SHIOJIMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE