Inventor
IRISAWA SHINICHI
JP37 patents
⚠️ This page may combine multiple inventors who share the name “IRISAWA SHINICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOITO MFG CO LTD
35 patentsUS5220235AJun 15, 1993
Discharge lamp device
KOITO MFG CO LTD137 citations96
US6891332B1May 10, 2005
Arc tube capable of preventing occurrence of leak due to cracks and manufacturing method therefore
KOITO MFG CO LTD26 citations92
US6815894B2Nov 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
US6354900B1Mar 12, 2002
Arc tube and fabricating method thereof
KOITO MFG CO LTD23 citations92
US5505648AApr 9, 1996
Contamination-free method of making arc tubes
KOITO MFG CO LTD22 citations92
US5286227AFeb 15, 1994
Arc tube and method for manufacturing the same
KOITO MFG CO LTD40 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
US5877591AMar 2, 1999
Arc tube for discharge lamp device
KOITO MFG CO LTD18 citations84
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
US6547619B1Apr 15, 2003
ARC tube for discharge lamp unit and method of manufacturing same
KOITO MFG CO LTD10 citations73
US6456008B1Sep 24, 2002
Metal Halide lamp having improved shunting characteristics
KOITO MFG CO LTD8 citations73
US6452334B1Sep 17, 2002
Arc tube with residual-compressive-stress layer for discharge lamp unit and method of manufacturing same
KOITO MFG CO LTD11 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
US5059855AOct 22, 1991
Discharge lamp base construction
KOITO MFG CO LTD17 citations73
US5402037AMar 28, 1995
Arc tube having particular volume and gas pressure for luminous flux
KOITO MFG CO LTD16 citations72
US5177397AJan 5, 1993
Discharge lamp assembly with insulating tubular member and metal band around pinch seal
KOITO MFG CO LTD11 citations72
US6903510B2Jun 7, 2005
Arc tube having compressive stress and method for manufacture of an arc tube
KOITO MFG CO LTD2 citations63
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
US7038385B2May 2, 2006
Mercury-free arc tube for discharge lamp unit
KOITO MFG CO LTD4 citations62
US6918808B2Jul 19, 2005
Arc tube for discharge lamp and method for producing the same
KOITO MFG CO LTD5 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
US6707239B2Mar 16, 2004
Arc tube including step-down plane portions in pinch seal area
KOITO MFG CO LTD0 citations52
US6672923B1Jan 6, 2004
Method of manufacturing arc tube
KOITO MFG CO LTD0 citations41