P

Inventor

KOTANI JUNJI

JP37 patents
⚠️ This page may combine multiple inventors who share the name “KOTANI JUNJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FUJITSU LTD

22 patents
US9831310B2Nov 28, 2017

Compound semiconductor device, method for producing the same, power-supply unit, and high-frequency amplifier

FUJITSU LTD9 citations84
US9029868B2May 12, 2015

Semiconductor apparatus having nitride semiconductor buffer layer doped with at least one of Fe, Si, and C

FUJITSU LTD9 citations83
US10992269B2Apr 27, 2021

Compound semiconductor device with high power and reduced off-leakage and method for manufacturing the same

FUJITSU LTD3 citations73
US9691890B2Jun 27, 2017

Compound semiconductor device and manufacturing method thereof

FUJITSU LTD3 citations73
US9166031B2Oct 20, 2015

Semiconductor device

FUJITSU LTD6 citations73
US10431656B2Oct 1, 2019

Semiconductor crystal substrate with Fe doping

FUJITSU LTD5 citations72
US12369345B2Jul 22, 2025

Compound semiconductor device, amplifier, and method for manufacturing compound semiconductor device

FUJITSU LTD0 citations62
US9196685B2Nov 24, 2015

Semiconductor device and manufacturing method thereof

FUJITSU LTD2 citations61
US11646366B2May 9, 2023

Semiconductor device

FUJITSU LTD0 citations52
US10707338B2Jul 7, 2020

Semiconductor device and method of manufacturing the same

FUJITSU LTD0 citations52
US10665710B2May 26, 2020

Compound semiconductor device and fabrication method

FUJITSU LTD0 citations52
US9997612B2Jun 12, 2018

Compound semiconductor device and method of manufacturing the same

FUJITSU LTD0 citations52
US9653590B2May 16, 2017

Compound semiconductor device and method of manufacturing the same

FUJITSU LTD1 citations52
US9548365B2Jan 17, 2017

Semiconductor device and method for manufacturing semiconductor device

FUJITSU LTD1 citations52
US9024358B2May 5, 2015

Compound semiconductor device with embedded electrode controlling a potential of the buffer layer

FUJITSU LTD0 citations52
US10651305B2May 12, 2020

Compound semiconductor device with quantum well structure, power supply device, and high-frequency amplifier

FUJITSU LTD0 citations51
US10600901B2Mar 24, 2020

Compound semiconductor device and manufacturing method thereof

FUJITSU LTD0 citations51
US11791384B2Oct 17, 2023

Semiconductor device

FUJITSU LTD0 citations49
US10847642B2Nov 24, 2020

Compound semiconductor device and fabrication method

FUJITSU LTD0 citations41
US10622469B2Apr 14, 2020

Compound semiconductor device and method for manufacturing the same

FUJITSU LTD0 citations41
US10242936B2Mar 26, 2019

Semiconductor device and method of fabricating the semiconductor device

FUJITSU LTD0 citations41
US10032899B2Jul 24, 2018

Semiconductor device and method therefor including multiple cap layers with amorphous layer

FUJITSU LTD0 citations41

CANON KK

9 patents

KOTANI JUNJI

6 patents