Inventor
SAKUMA HITOSHI
JP44 patents
⚠️ This page may combine multiple inventors who share the name “SAKUMA HITOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TDK CORP
14 patentsUS9331262B2May 3, 2016
Thin film piezoelectric element, thin film piezoelectric actuator, thin film piezoelectric sensor, hard drive disk, and inkjet printer device
TDK CORP7 citations83
US9685602B2Jun 20, 2017
Piezoelectric thin film element, piezoelectric actuator, piezoelectric sensor, hard-disk drive and ink jet printer device
TDK CORP2 citations69
US7785697B2Aug 31, 2010
Thin film device
TDK CORP5 citations61
US10964879B2Mar 30, 2021
Method of manufacturing a dielectric device
TDK CORP0 citations60
US11594668B2Feb 28, 2023
Thin film laminate, thin film device and multilayer substrate
TDK CORP0 citations51
US10790434B2Sep 29, 2020
Piezoelectric thin film-stacked body, piezoelectric thin film substrate, piezoelectric thin film device, piezoelectric actuator, piezoelectric sensor, head assembly, head stack assembly, hard disk drive, printer head, and ink-jet printer device
TDK CORP0 citations51
US9277869B2Mar 8, 2016
Thin-film piezoelectric element, thin-film piezoelectric actuator, thin-film piezoelectric sensor, hard disk drive, and inkjet printer apparatus
TDK CORP0 citations51
US9147826B2Sep 29, 2015
Thin film piezoelectric element, thin film piezoelectric actuator, and thin film piezoelectric sensor; and hard disk drive, and inkjet printer
TDK CORP0 citations51
US9147827B2Sep 29, 2015
Piezoelectric element, piezoelectric actuator, piezoelectric sensor, hard disk drive, and inkjet printer device
TDK CORP0 citations51
US9130169B2Sep 8, 2015
Piezoelectric element, piezoelectric actuator, piezoelectric sensor, hard disk drive, and inkjet printer device
TDK CORP0 citations51
US9076968B2Jul 7, 2015
Piezoelectric element, piezoelectric actuator, piezoelectric sensor, hard disk drive, and inkjet printer device
TDK CORP0 citations51
US9065049B2Jun 23, 2015
Thin film piezoelectric device
TDK CORP1 citations51
US9022532B1May 5, 2015
Piezoelectric element, piezoelectric actuator, piezoelectric sensor, hard disk drive, and ink-jet printer device
TDK CORP0 citations50
US9837596B2Dec 5, 2017
Piezoelectric device, piezoelectric actuator, piezoelectric sensor, hard disk drive, and inkjet printer apparatus
TDK CORP0 citations48
MITSUBISHI ELECTRIC CORP
13 patentsUS11791610B2Oct 17, 2023
Semiconductor laser device manufacturing method and semiconductor laser device
MITSUBISHI ELECTRIC CORP0 citations62
US7964424B2Jun 21, 2011
Method for manufacturing nitride semiconductor light-emitting element
MITSUBISHI ELECTRIC CORP2 citations62
US7879635B2Feb 1, 2011
Method for manufacturing semiconductor optical device
MITSUBISHI ELECTRIC CORP2 citations62
US7582908B2Sep 1, 2009
Nitride semiconductor device and manufacturing method thereof
MITSUBISHI ELECTRIC CORP3 citations62
US11616342B2Mar 28, 2023
Semiconductor optical element, semiconductor optical integrated element, and method for manufacturing semiconductor optical element
MITSUBISHI ELECTRIC CORP0 citations60
US11456576B2Sep 27, 2022
Method for manufacturing optical semiconductor device
MITSUBISHI ELECTRIC CORP0 citations57
US12580363B2Mar 17, 2026
Optical semiconductor element
MITSUBISHI ELECTRIC CORP0 citations52
US7795738B2Sep 14, 2010
Nitride semiconductor device
MITSUBISHI ELECTRIC CORP0 citations52
US7791097B2Sep 7, 2010
Nitride semiconductor device and manufacturing method of the same
MITSUBISHI ELECTRIC CORP0 citations52
US7714439B2May 11, 2010
Nitride semiconductor device and method of manufacturing the same
MITSUBISHI ELECTRIC CORP0 citations52
US7683398B2Mar 23, 2010
Nitride semiconductor device having a silicon-containing connection layer and manufacturing method thereof
MITSUBISHI ELECTRIC CORP0 citations52
US7897418B2Mar 1, 2011
Method for manufacturing semiconductor light emitting device
MITSUBISHI ELECTRIC CORP0 citations51
US10116121B2Oct 30, 2018
Semiconductor device manufacturing method and semiconductor device
MITSUBISHI ELECTRIC CORP0 citations42