Inventor
TAKEI KIYOSHI
JP16 patents
⚠️ This page may combine multiple inventors who share the name “TAKEI KIYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PIONEER CORP
9 patentsUS6504632B1Jan 7, 2003
Optical transmitter and receiver module which demultiplexes a superimposed optical signal
PIONEER CORP24 citations92
US6519379B1Feb 11, 2003
Optical integrated device and manufacturing method thereof
PIONEER CORP18 citations83
US6795466B1Sep 21, 2004
Distributed feedback type semiconductor laser device
PIONEER CORP8 citations73
US6537841B2Mar 25, 2003
Ridge-structure DFB semiconductor laser and method of manufacturing the same
PIONEER CORP6 citations73
US6535670B1Mar 18, 2003
Optical transmitter/receiver module and method of manufacturing the same
PIONEER CORP11 citations73
US6381258B1Apr 30, 2002
Ridge-structure DFB semiconductor laser and method of manufacturing the same
PIONEER CORP12 citations73
US6714571B2Mar 30, 2004
Ridge type semiconductor laser of distributed feedback
PIONEER CORP3 citations62
US7225192B2May 29, 2007
Hybrid recording medium and information recording apparatus
PIONEER CORP0 citations49
US6348360B1Feb 19, 2002
Method for producing semiconductor laser module
PIONEER CORP0 citations41
PIONEER ELECTRONIC CORP
5 patentsUS5182669AJan 26, 1993
High density optical disk and method of making
PIONEER ELECTRONIC CORP80 citations96
US6301283B1Oct 9, 2001
Distributed feedback semiconductor laser
PIONEER ELECTRONIC CORP28 citations92
US6292503B1Sep 18, 2001
Ridge type semiconductor laser of laterally-coupled distributed feedback and method of manufacturing the same
PIONEER ELECTRONIC CORP20 citations92
US6573116B2Jun 3, 2003
Ridge type semiconductor laser of laterally-coupled distributed feedback and method of manufacturing the same
PIONEER ELECTRONIC CORP9 citations73
US6500687B2Dec 31, 2002
Distributed feedback semiconductor laser element and method for making the same
PIONEER ELECTRONIC CORP10 citations73