Hiroshi Nakashima

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Hamamatsu-Shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Speaker diaphragm
- Patent number 11,974,110
- Issue date Apr 30, 2024
- Yamaha Corporation
- Hiroshi Nakashima
- B32 - LAYERED PRODUCTS
Information Patent Grant
Speaker diaphragm and production method thereof
- Patent number 11,432,072
- Issue date Aug 30, 2022
- Yamaha Corporation
- Hiroshi Nakashima
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
Speaker Diaphragm
- Publication number 20210258693
- Publication date Aug 19, 2021
- Yamaha Corporation
- Hiroshi NAKASHIMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Speaker Diaphragm and Method for Manufacturing Speaker Diaphragm
- Publication number 20210136498
- Publication date May 6, 2021
- Yamaha Corporation
- Hiroshi NAKASHIMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Speaker Diaphragm and Production Method Thereof
- Publication number 20200260188
- Publication date Aug 13, 2020
- Yamaha Corporation
- Hiroshi NAKASHIMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
ACOUSTIC SHEET AND METHOD OF MANUFACTURING ACOUSTIC SHEET
- Publication number 20120052303
- Publication date Mar 1, 2012
- Yamaha Corporation
- Hiroshi Nakashima
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
ACOUSTIC RESONANCE DEVICE
- Publication number 20110056763
- Publication date Mar 10, 2011
- Yamaha Corporation
- Rento Tanase
- B60 - VEHICLES IN GENERAL