Inventor
KIKAWA TAKESHI
JP9 patents
⚠️ This page may combine multiple inventors who share the name “KIKAWA TAKESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
7 patentsUS6455876B1Sep 24, 2002
Semiconductor radiative device
HITACHI LTD22 citations91
US5508554AApr 16, 1996
Semicoductor device having defect type compound layer between single crystal substrate and single crystal growth layer
HITACHI LTD37 citations91
US5399230AMar 21, 1995
Method and apparatus for etching compound semiconductor
HITACHI LTD9 citations72
US5070272ADec 3, 1991
Photoconductive device and method of operating same
HITACHI LTD2 citations62
US7668217B2Feb 23, 2010
Semiconductor laser diode device
HITACHI LTD0 citations51
US6576503B2Jun 10, 2003
Laser diodes and manufacturing methods
HITACHI LTD1 citations51
US7899104B2Mar 1, 2011
EL semiconductor device
HITACHI LTD0 citations41