Inventor

KUMASAKA KATSUNORI

JP9 patents

⚠️ This page may combine multiple inventors who share the name “KUMASAKA KATSUNORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOKIN CORP

7 patents

US6118221ASep 12, 2000

Cold-cathode tube lighting circuit with protection circuit for piezoelectric transformer

TOKIN CORP37 citations92

US5998909ADec 7, 1999

Piezoelectric transformer

TOKIN CORP18 citations82

US5777425AJul 7, 1998

Voltage converter for use with a piezoelectric transformer

TOKIN CORP18 citations81

US6515405B1Feb 4, 2003

Mounting structure of piezoelectric transformer and method of mounting piezoelectric transformer

TOKIN CORP9 citations73

US5949179ASep 7, 1999

Piezoelectric transformer and power supply including the same

TOKIN CORP9 citations73

US5847490ADec 8, 1998

Piezoelectric transformer wrapped by wrapping member of soft insulating sheet material

TOKIN CORP10 citations71

US9743166B2Aug 22, 2017

Device generating sound

TOKIN CORP6 citations69

ABE YOSHIYUKI

1 patent

US9544694B2Jan 10, 2017

Piezoelectric element, piezoelectric vibration module, and methods of manufacturing the same

ABE YOSHIYUKI30 citations92

NEC TOKIN CORP

1 patent

US6960871B1Nov 1, 2005

Piezoelectric transformer

NEC TOKIN CORP4 citations62