Kazuo Ochiai

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Headphone device
- Patent number 9,197,959
- Issue date Nov 24, 2015
- D&M Holdings, Inc.
- Yoshinari Fukushima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
LEAKAGE TRANSFORMER
- Publication number 20250069801
- Publication date Feb 27, 2025
- DIAMOND&ZEBRA ELECTRIC MFG. CO., LTD.
- Yusuke MINE
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HEADPHONE DEVICE
- Publication number 20140369545
- Publication date Dec 18, 2014
- Yoshinari Fukushima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE