Inventor
CHIYO TOSHIAKI
JP21 patents
Patents
21 patentsUS6426512B1Jul 30, 2002
Group III nitride compound semiconductor device
TOYODA GOSEI KK222 citations99
US6342404B1Jan 29, 2002
Group III nitride compound semiconductor device and method for producing
TOYODA GOSEI KK137 citations99
US6982435B2Jan 3, 2006
Group III nitride compound semiconductor device and method for producing the same
TOYODA GOSEI KK100 citations98
US6841808B2Jan 11, 2005
Group III nitride compound semiconductor device and method for producing the same
TOYODA GOSEI KK124 citations98
US6100545AAug 8, 2000
GaN type semiconductor device
TOYODA GOSEI KK188 citations98
US7128846B2Oct 31, 2006
Process for producing group III nitride compound semiconductor
TOYODA GOSEI KK84 citations97
US6335217B1Jan 1, 2002
GaN type semiconductor device fabrication
TOYODA GOSEI KK83 citations97
US6593016B1Jul 15, 2003
Group III nitride compound semiconductor device and producing method thereof
TOYODA GOSEI KK41 citations96
US6589808B2Jul 8, 2003
GaN type semiconductor device
TOYODA GOSEI KK46 citations96
US7312472B2Dec 25, 2007
Compound semiconductor element based on Group III element nitride
TOYODA GOSEI KK19 citations92
US6939733B2Sep 6, 2005
Group III nitride compound semiconductor device and method of producing the same
TOYODA GOSEI KK20 citations92
US6875629B2Apr 5, 2005
III group nitride based semiconductor element and method for manufacture thereof
TOYODA GOSEI KK47 citations92
US6830949B2Dec 14, 2004
Method for producing group-III nitride compound semiconductor device
TOYODA GOSEI KK25 citations92
US6713789B1Mar 30, 2004
Group III nitride compound semiconductor device and method of producing the same
TOYODA GOSEI KK42 citations92
US6623998B2Sep 23, 2003
Method for manufacturing group III nitride compound semiconductor device
TOYODA GOSEI KK32 citations92
US6531719B2Mar 11, 2003
Group III nitride compound semiconductor device
TOYODA GOSEI KK35 citations92
US7029939B2Apr 18, 2006
P-type semiconductor manufacturing method and semiconductor device
TOYODA GOSEI KK14 citations84
US6943128B2Sep 13, 2005
Method for reducing semiconductor resistance, device for reducing semiconductor resistance and semiconductor element
TOYODA GOSEI KK18 citations84
US6872965B2Mar 29, 2005
Group III nitride compound semiconductor device
TOYODA GOSEI KK11 citations74
US6918961B2Jul 19, 2005
Group III nitride compound semiconductor device and producing method therefor
TOYODA GOSEI KK4 citations63
US6861275B2Mar 1, 2005
Method for producing group III nitride compound semiconductor device
TOYODA GOSEI KK2 citations63