Inventor
KURUMADA KATSUHIKO
JP9 patents
⚠️ This page may combine multiple inventors who share the name “KURUMADA KATSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON TELEGRAPH & TELEPHONE
4 patentsUS5155737AOct 13, 1992
Semiconductor wavelength conversion device
NIPPON TELEGRAPH & TELEPHONE26 citations87
US4463366AJul 31, 1984
Field effect transistor with combination Schottky-junction gate
NIPPON TELEGRAPH & TELEPHONE22 citations79
US4327475AMay 4, 1982
Method of manufacturing a FET device disposed in a compound s/c layer on a semi-insulating substrate
NIPPON TELEGRAPH & TELEPHONE13 citations71
US4331967AMay 25, 1982
Field effects semiconductor devices
NIPPON TELEGRAPH & TELEPHONE4 citations60
NTT ELECTRONICS CORP
3 patentsUS7092593B2Aug 15, 2006
Microactuator device and optical switching system using the same
NTT ELECTRONICS CORP0 citations41
US7010200B2Mar 7, 2006
Light-beam switching/adjusting apparatus and manufacturing method thereof
NTT ELECTRONICS CORP0 citations41
US6954562B2Oct 11, 2005
Matrix switch of optical waveguide type and method for manufacturing the same
NTT ELECTRONICS CORP0 citations41