Masafumi Katsuno

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Miyagi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Piezoelectric transformer
- Patent number 6,278,227
- Issue date Aug 21, 2001
- Tokin Corporation
- Masafumi Katsuno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Piezoelectric transformer
- Patent number 6,051,915
- Issue date Apr 18, 2000
- Tokin Corporation
- Masafumi Katsuno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Piezoelectric transformer
- Patent number 5,998,909
- Issue date Dec 7, 1999
- Tokin Corporation
- Katsunori Kumasaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Piezoelectric transformer wrapped by wrapping member of soft insula...
- Patent number 5,847,490
- Issue date Dec 8, 1998
- Tokin Corporation
- Katsunori Kumasaka
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
PIEZOELECTRIC SPEAKER
- Publication number 20210044903
- Publication date Feb 11, 2021
- TOKIN CORPORATION
- Yoshiyuki ABE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PIEZOELECTRIC SPEAKER
- Publication number 20180041839
- Publication date Feb 8, 2018
- TOKIN CORPORATION
- Yoshiyuki ABE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
VIBRATION TRANSFER STRUCTURE AND PIEZOELECTRIC SPEAKER
- Publication number 20180035200
- Publication date Feb 1, 2018
- TOKIN CORPORATION
- Yoshiyuki ABE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SOUND GENERATING UNIT AND ELECTRONIC DEVICE
- Publication number 20170257706
- Publication date Sep 7, 2017
- TOKIN CORPORATION
- Osamu YAMAZAKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE