Inventor
ASHIKAGA KINYA
JP23 patents
⚠️ This page may combine multiple inventors who share the name “ASHIKAGA KINYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OKI ELECTRIC IND CO LTD
15 patentsUS6590245B2Jul 8, 2003
Ferroelectric memory
OKI ELECTRIC IND CO LTD62 citations95
US6501674B2Dec 31, 2002
Semiconductor memory and its driving method
OKI ELECTRIC IND CO LTD28 citations92
US6496407B2Dec 17, 2002
Ferroelectric memory
OKI ELECTRIC IND CO LTD17 citations92
US6411540B1Jun 25, 2002
Ferroelectric random access memory and its operating method
OKI ELECTRIC IND CO LTD18 citations92
US6198654B1Mar 6, 2001
Ferroelectric memory device and method of reading data therefrom
OKI ELECTRIC IND CO LTD37 citations92
US6859380B2Feb 22, 2005
Ferroelectric memory and method of operating same
OKI ELECTRIC IND CO LTD14 citations83
US6707701B2Mar 16, 2004
Semiconductor memory and its driving method
OKI ELECTRIC IND CO LTD6 citations73
US7436647B2Oct 14, 2008
Thin-film capacitor including an opening therein
OKI ELECTRIC IND CO LTD6 citations62
US7232693B2Jun 19, 2007
Method for manufacturing ferroelectric memory
OKI ELECTRIC IND CO LTD3 citations62
US7078288B2Jul 18, 2006
Method of producing ferroelectric capacitor
OKI ELECTRIC IND CO LTD4 citations62
US6987687B2Jan 17, 2006
Semiconductor memory and its driving method
OKI ELECTRIC IND CO LTD2 citations62
US6972980B2Dec 6, 2005
Semiconductor memory devices and methods of fabricating semiconductor memory device
OKI ELECTRIC IND CO LTD3 citations62
US6781866B2Aug 24, 2004
Semiconductor memory and writing method and reading method for the same
OKI ELECTRIC IND CO LTD3 citations62
US6519203B2Feb 11, 2003
Ferroelectric random access memory and its operating method
OKI ELECTRIC IND CO LTD4 citations62
US7123499B2Oct 17, 2006
Semiconductor memory devices and methods of fabricating semiconductor memory device
OKI ELECTRIC IND CO LTD0 citations51
ROHM CO LTD
6 patentsUS11322679B2May 3, 2022
Device using a piezoelectric element and method for manufacturing the same
ROHM CO LTD0 citations61
US10850307B2Dec 1, 2020
Ultrasonic device
ROHM CO LTD0 citations51
US10199565B2Feb 5, 2019
Device using a piezoelectric element and method for manufacturing the same
ROHM CO LTD0 citations51
US10052873B2Aug 21, 2018
Inkjet apparatus and manufacturing method of inkjet apparatus
ROHM CO LTD0 citations51
US9776405B2Oct 3, 2017
Inkjet apparatus and manufacturing method of inkjet apparatus
ROHM CO LTD0 citations51
US10220618B2Mar 5, 2019
Ink jet print head and method of manufacturing the same
ROHM CO LTD0 citations41