Inventor
FUKUYO TAKESHI
JP31 patents
⚠️ This page may combine multiple inventors who share the name “FUKUYO TAKESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOITO MFG CO LTD
26 patentsUS6750612B2Jun 15, 2004
Mercury-free arc tube for discharge lamp unit
KOITO MFG CO LTD30 citations92
US6354900B1Mar 12, 2002
Arc tube and fabricating method thereof
KOITO MFG CO LTD23 citations92
US6294861B1Sep 25, 2001
Electric discharge lamp apparatus
KOITO MFG CO LTD25 citations91
US6274973B1Aug 14, 2001
Electric discharge lamp apparatus with insulating plug
KOITO MFG CO LTD21 citations91
US6239539B1May 29, 2001
Electric discharge lamp apparatus and insulating plug therefor having a particular front portion
KOITO MFG CO LTD22 citations91
US6411037B1Jun 25, 2002
Arc tube for discharge lamp device and method of manufacturing the same
KOITO MFG CO LTD14 citations83
US5877590AMar 2, 1999
Discharge lamp arc tube and method of producing the same
KOITO MFG CO LTD15 citations81
US5601465AFeb 11, 1997
Method for manufacturing arc tube for discharge bulb
KOITO MFG CO LTD8 citations74
US6580200B2Jun 17, 2003
Discharge lamp and manufacturing method thereof
KOITO MFG CO LTD12 citations73
US6456008B1Sep 24, 2002
Metal Halide lamp having improved shunting characteristics
KOITO MFG CO LTD8 citations73
US5962976AOct 5, 1999
Molybdenum foils with yttrium oxide and recrystallization grains no more than 50 microns within the pinch seals of a metallic halide lamp
KOITO MFG CO LTD13 citations73
US7977886B2Jul 12, 2011
Mercury-free discharge bulb
KOITO MFG CO LTD2 citations62
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
US6918808B2Jul 19, 2005
Arc tube for discharge lamp and method for producing the same
KOITO MFG CO LTD5 citations62
US6616494B1Sep 9, 2003
Method and apparatus for supplying pellets to arc tube for discharge lamp
KOITO MFG CO LTD2 citations62
US5993279ANov 30, 1999
Discharge lamp arc tube and method of producing the same
KOITO MFG CO LTD3 citations62
US7170230B2Jan 30, 2007
Mercury-free arc tube for a discharge lamp
KOITO MFG CO LTD0 citations52
US6974360B2Dec 13, 2005
Method of producing an arc tube for a discharge lamp device
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
US6321799B1Nov 27, 2001
Method and apparatus for supplying mercury to arc tube for discharge lamp
KOITO MFG CO LTD0 citations41