Koichi Muramatsu

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Speaker unit and earphone
- Patent number 12,108,202
- Issue date Oct 1, 2024
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Satoshi Obase
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Battery pack and production method for same
- Patent number 11,532,847
- Issue date Dec 20, 2022
- SANYO ELECTRIC CO., LTD.
- Masami Haino
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Battery pack and production method for same
- Patent number 11,424,516
- Issue date Aug 23, 2022
- SANYO ELECTRIC CO., LTD.
- Masami Haino
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Battery module
- Patent number 11,276,906
- Issue date Mar 15, 2022
- SANYO ELECTRIC CO., LTD.
- Masami Haino
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SPEAKER UNIT AND EARPHONE
- Publication number 20220182746
- Publication date Jun 9, 2022
- Panasonic Intellectual Property Management Co., Ltd.
- Satoshi OBASE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
BATTERY PACK AND PRODUCTION METHOD FOR SAME
- Publication number 20200381682
- Publication date Dec 3, 2020
- SANYO ELECTRIC CO., LTD.
- Masami Haino
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BATTERY PACK AND PRODUCTION METHOD FOR SAME
- Publication number 20200235366
- Publication date Jul 23, 2020
- SANYO ELECTRIC CO., LTD.
- Masami Haino
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
BATTERY MODULE
- Publication number 20200220147
- Publication date Jul 9, 2020
- SANYO ELECTRIC CO., LTD.
- Masami Haino
- H01 - BASIC ELECTRIC ELEMENTS