Inventor
OHSHIMA YOSHITAKA
JP15 patents
Patents
15 patentsUS6891332B1May 10, 2005
Arc tube capable of preventing occurrence of leak due to cracks and manufacturing method therefore
KOITO MFG CO LTD26 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
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
US6903510B2Jun 7, 2005
Arc tube having compressive stress and method for manufacture of an arc tube
KOITO MFG CO LTD2 citations63
US6707239B2Mar 16, 2004
Arc tube including step-down plane portions in pinch seal area
KOITO MFG CO LTD0 citations52
US6653785B2Nov 25, 2003
Arc tube with pinch seal and dimensional relationship and method for forming the same
KOITO MFG CO LTD1 citations47
US6672923B1Jan 6, 2004
Method of manufacturing arc tube
KOITO MFG CO LTD0 citations41