Inventor
IGA RYUZO
JP10 patents
Patents
10 patentsUS6815786B2Nov 9, 2004
Semiconductor optical device and method of manufacturing the same
NIPPON TELEGRAPH & TELEPHONE25 citations92
US6717187B2Apr 6, 2004
Semiconductor optical device and the fabrication method
NIPPON TELEGRAPH & TELEPHONE16 citations91
US7701993B2Apr 20, 2010
Semiconductor optical device and a method of fabricating the same
NIPPON TELEGRAPH & TELEPHONE8 citations83
US6990131B2Jan 24, 2006
Semiconductor optical device and method of manufacturing the same
NIPPON TELEGRAPH & TELEPHONE7 citations73
US6692837B2Feb 17, 2004
Semi-insulating substrate, semiconductor optical device and fabrication method of semiconductor thin film
NIPPON TELEGRAPH & TELEPHONE8 citations73
US7060518B2Jun 13, 2006
Semiconductor optical device and the fabrication method
NIPPON TELEGRAPH & TELEPHONE6 citations72
US5273932ADec 28, 1993
Method for forming semiconductor thin films where an argon laser is used to suppress crystal growth
NIPPON TELEGRAPH & TELEPHONE8 citations71
US5186750AFeb 16, 1993
Method and apparatus for forming semiconductor thin films
NIPPON TELEGRAPH & TELEPHONE11 citations71
US7355778B2Apr 8, 2008
Semiconductor optical modulator
NIPPON TELEGRAPH & TELEPHONE5 citations62
US6982469B2Jan 3, 2006
Semiconductor optical device and the fabrication method
NIPPON TELEGRAPH & TELEPHONE4 citations61