Inventor

KOKAWA TAKUYA

JP9 patents

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

FURUKAWA ELECTRIC CO LTD

3 patents

US9911842B2Mar 6, 2018

Nitride semiconductor device, production method thereof, diode, and field effect transistor

FURUKAWA ELECTRIC CO LTD8 citations80

US12481115B2Nov 25, 2025

Optical device and optical component

FURUKAWA ELECTRIC CO LTD0 citations59

US9099383B2Aug 4, 2015

Semiconductor substrate and semiconductor device, and manufacturing method of semiconductor substrate

FURUKAWA ELECTRIC CO LTD0 citations50

KOKAWA TAKUYA

2 patents

US8338859B2Dec 25, 2012

Semiconductor electronic device having reduced threading dislocation and method of manufacturing the same

KOKAWA TAKUYA3 citations59

US8067787B2Nov 29, 2011

Semiconductor electronic device

KOKAWA TAKUYA6 citations59

IKEDA NARIAKI

1 patent

US8569800B2Oct 29, 2013

Field effect transistor

IKEDA NARIAKI5 citations71

SATO YOSHIHIRO

1 patent

US8450782B2May 28, 2013

Field effect transistor, method of manufacturing field effect transistor, and method of forming groove

SATO YOSHIHIRO4 citations61

ADVANCED POWER DEVICE RES ASS

1 patent

US8884393B2Nov 11, 2014

Nitride compound semiconductor device and manufacturing method thereof

ADVANCED POWER DEVICE RES ASS2 citations57

IWAMI MASAYUKI

1 patent

US8860038B2Oct 14, 2014

Nitride semiconductor device and manufacturing method for the same

IWAMI MASAYUKI2 citations57