Katsunori Kumasaka

Person

Sendai-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Device generating sound
- Patent number 9,743,166
- Issue date Aug 22, 2017
- TOKIN CORPORATION
- Yoshiyuki Abe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Piezoelectric element, piezoelectric vibration module, and methods...
- Patent number 9,544,694
- Issue date Jan 10, 2017
- NEC Tokin Corporation
- Yoshiyuki Abe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Piezoelectric transformer
- Patent number 6,960,871
- Issue date Nov 1, 2005
- NEC Tokin Corporation
- Katsunori Kumasaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Mounting structure of piezoelectric transformer and method of mount...
- Patent number 6,515,405
- Issue date Feb 4, 2003
- Tokin Corporation
- Katsunori Kumasaka
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Cold-cathode tube lighting circuit with protection circuit for piez...
- Patent number 6,118,221
- Issue date Sep 12, 2000
- Tokin Corporation
- Katsunori Kumasaka
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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 and power supply including the same
- Patent number 5,949,179
- Issue date Sep 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
Information Patent Grant
Voltage converter for use with a piezoelectric transformer
- Patent number 5,777,425
- Issue date Jul 7, 1998
- Tokin Corporation
- Yoshihiro Ino
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
SPEAKER AND IMAGE DISPLAY APPARATUS
- Publication number 20180317020
- Publication date Nov 1, 2018
- 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
Information Patent Application
DEVICE GENERATING SOUND
- Publication number 20160249120
- Publication date Aug 25, 2016
- NEC TOKIN CORPORATION
- Yoshiyuki ABE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PIEZOELECTRIC ELEMENT, PIEZOELECTRIC VIBRATION MODULE, AND METHODS...
- Publication number 20150163598
- Publication date Jun 11, 2015
- NEC TOKIN CORPORATION
- Yoshiyuki Abe
- H01 - BASIC ELECTRIC ELEMENTS

Katsunori Kumasaka

Person

Patents Grantslast 30 patents

Device generating sound

Piezoelectric element, piezoelectric vibration module, and methods...

Piezoelectric transformer

Mounting structure of piezoelectric transformer and method of mount...

Cold-cathode tube lighting circuit with protection circuit for piez...

Piezoelectric transformer

Piezoelectric transformer and power supply including the same

Piezoelectric transformer wrapped by wrapping member of soft insula...

Voltage converter for use with a piezoelectric transformer

Patents Applicationslast 30 patents

SPEAKER AND IMAGE DISPLAY APPARATUS

PIEZOELECTRIC SPEAKER

VIBRATION TRANSFER STRUCTURE AND PIEZOELECTRIC SPEAKER

SOUND GENERATING UNIT AND ELECTRONIC DEVICE

DEVICE GENERATING SOUND

PIEZOELECTRIC ELEMENT, PIEZOELECTRIC VIBRATION MODULE, AND METHODS...