Inventor
KUSHIDA KEIKO
JP17 patents
⚠️ This page may combine multiple inventors who share the name “KUSHIDA KEIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
15 patentsUS6342712B1Jan 29, 2002
Semiconductor storage device with ferrielectric capacitor and metal-oxide isolation
HITACHI LTD57 citations96
US6097051AAug 1, 2000
Semiconductor device and method of fabricating
HITACHI LTD53 citations96
US6800889B2Oct 5, 2004
Semiconductor device and fabrication method thereof
HITACHI LTD21 citations92
US6635913B2Oct 21, 2003
Semiconductor storage device
HITACHI LTD14 citations92
US6432767B2Aug 13, 2002
Method of fabricating semiconductor device
HITACHI LTD45 citations92
US6396092B1May 28, 2002
Semiconductor device and method for manufacturing the same
HITACHI LTD28 citations92
US6380574B1Apr 30, 2002
Ferroelectric capacitor with a self-aligned diffusion barrier
HITACHI LTD25 citations92
US4803392AFeb 7, 1989
Piezoelectric transducer
HITACHI LTD32 citations92
US4677336AJun 30, 1987
Piezoelectric transducer and process for its production
HITACHI LTD37 citations92
US4692653ASep 8, 1987
Acoustic transducers utilizing ZnO thin film
HITACHI LTD22 citations82
US6462368B2Oct 8, 2002
Ferroelectric capacitor with a self-aligned diffusion barrier
HITACHI LTD13 citations74
US6338994B1Jan 15, 2002
Semiconductor device and method of fabricating thereof
HITACHI LTD7 citations74
US6818523B2Nov 16, 2004
Semiconductor storage device manufacturing method which forms a hydrogen diffusion inhibiting layer
HITACHI LTD5 citations73
US5914068AJun 22, 1999
Bi-layer oxide ferroelectrics
HITACHI LTD15 citations72
US6144052ANov 7, 2000
Semiconductor device and its manufacture
HITACHI LTD13 citations71