Inventor
TAKAGAKI MICHIO
JP18 patents
⚠️ This page may combine multiple inventors who share the name “TAKAGAKI MICHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOITO MFG CO LTD
13 patentsUS6815894B2Nov 9, 2004
Mercury-free arc tube for discharge lamp unit
KOITO MFG CO LTD26 citations92
US6750612B2Jun 15, 2004
Mercury-free arc tube for discharge lamp unit
KOITO MFG CO LTD30 citations92
US7098596B2Aug 29, 2006
Mercury-free arc tube for discharge lamp unit
KOITO MFG CO LTD11 citations83
US7583028B2Sep 1, 2009
Mercury free arc tube for a discharge lamp
KOITO MFG CO LTD5 citations62
US7443100B2Oct 28, 2008
ARC tube discharge lamp with compression strain layer
KOITO MFG CO LTD2 citations62
US7314298B2Jan 1, 2008
Automotive headlight discharge bulb
KOITO MFG CO LTD2 citations62
US7279841B2Oct 9, 2007
Arc tube for a discharge lamp
KOITO MFG CO LTD2 citations62
US7038385B2May 2, 2006
Mercury-free arc tube for discharge lamp unit
KOITO MFG CO LTD4 citations62
US7170230B2Jan 30, 2007
Mercury-free arc tube for a discharge lamp
KOITO MFG CO LTD0 citations52
US7489083B2Feb 10, 2009
Mercury-free arc tube for discharge bulb
KOITO MFG CO LTD0 citations51
US7438620B2Oct 21, 2008
Arc tube of discharge lamp having electrode assemblies receiving vacuum heat treatment and method of manufacturing of arc tube
KOITO MFG CO LTD0 citations47
US6653785B2Nov 25, 2003
Arc tube with pinch seal and dimensional relationship and method for forming the same
KOITO MFG CO LTD1 citations47
US7746000B2Jun 29, 2010
Discharge bulb
KOITO MFG CO LTD0 citations41