Inventor

YAMAMOTO YOSHITSUGU

JP28 patents

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

YAMAMOTO YOSHITSUGU

MITSUBISHI ELECTRIC CORP

High electron mobility transistor

MBE apparatus and gas branch piping apparatus

III-V heterojunction bipolar transistor having a GaAs emitter ballast

Field effect transistor

Semiconductor device

Semiconductor device strucutre having a two-dimensional electron gas and contact thereto

Method and apparatus for measuring surface carrier recombination velocity and surface Fermi level

Method of making hetero-structure

Method of fabricating semiconductor device and semiconductor device fabricated thereby

Semiconductor device

Optical measuring method for semiconductor multiple layer structures and apparatus therefor

Field effect transistor

Method and apparatus for evaluating and adjusting microwave integrated circuit

Semiconductor device

High-frequency switch

Semiconductor device with recessed gate and shield electrode

Semiconductor device

Semiconductor device

Method and apparatus for evaluating semiconductor layers

Method for evaluating piezoelectric fields

Method for evaluating a crystalline semiconductor substrate

Method for manufacturing semiconductor device

Method of manufacturing semiconductor device

High electron mobility transistor with shortened recovery time

RIGAKU DENKI CO LTD

Method for measuring surface leakage current of sample

OISHI TOSHIYUKI

Semiconductor device and manufacturing method thereof

KUNII TETSUO

Semiconductor device including field effect transistor with reduced electric field concentration

NOGAMI YOUICHI

Semiconductor device having improved RF characteristics and moisture resistance and method for manufacturing the same