Inventor · disambiguated record
Toyohiko Kumada
Also filed as: KUMADA TOYOHIKO
17 granted patents·2 pending applications·108 citations·filing 1986–2010
90Inventor score
Top patents by PatentIndex Score
19 records- 0182US5962977ALow pressure discharge lamp having electrodes with a lithium-containing electrode emission materialUSHIO ELECTRIC INC·Filed 1997·Granted Oct 5, 1999·44 cites·3 claims
- 0276US6375533B1Electricity lead-in body for bulb and method for manufacturing the sameUSHIO ELECTRIC INC·Filed 1999·Granted Apr 23, 2002·32 cites·3 claims
- 0374US4768057AFlash fixing apparatusUSHIO ELECTRIC INC·Filed 1986·Granted Aug 30, 1988·19 cites·12 claims
- 0461US6861806B2Super-high pressure discharge lamp of the short arc typeUSHIO ELECTRIC INC·Filed 2002·Granted Mar 1, 2005·5 cites·8 claims
- 0559US7999475B2Short arc type discharge lampUSHIO ELECTRIC INC·Filed 2009·Granted Aug 16, 2011·0 cites·2 claims
- 0655US6940217B2Short arc ultra-high pressure discharge lampUSHIO ELECTRIC INC·Filed 2002·Granted Sep 6, 2005·3 cites·6 claims
- 0755US6762557B2Super-high pressure discharge lamp of the short arc typeUSHIO ELECTRIC INC·Filed 2002·Granted Jul 13, 2004·3 cites·17 claims
- 0853US8354792B2Fused joint structure in a lamp tube and forming method thereforUSHIO ELECTRIC INC·Filed 2008·Granted Jan 15, 2013·0 cites·7 claims
- 0953US7898180B2High pressure discharge lampUSHIO ELECTRIC INC·Filed 2008·Granted Mar 1, 2011·0 cites·8 claims
- 1052US8350476B2Short arc type discharge lampUSHIO ELECTRIC INC·Filed 2009·Granted Jan 8, 2013·0 cites·4 claims
- 1150US6787996B1Lamp seal using functionally gradient materialUSHIO ELECTRIC INC·Filed 2000·Granted Sep 7, 2004·2 cites·3 claims
- 1250US2009195158A1Short arc type high-pressure discharge lampUSHIO ELECTRIC INC·Filed 2009·Application pending·0 cites
- 1349US7656093B2Discharge lamp and metal foil for a discharge lampUSHIO ELECTRIC INC·Filed 2007·Granted Feb 2, 2010·0 cites·4 claims
- 1439US2002031975A1Short-arc, ultra-high-pressure discharge lamp and method of manufactureFiled 2001·Application pending·0 cites
- 1538US6911775B2Short-arc, ultra-high pressure discharge lampUSHIO ELECTRIC INC·Filed 2002·Granted Jun 28, 2005·0 cites·10 claims
- 1637US6923700B2Short-arc, ultra-high-pressure discharge lamp and method of manufactureUSHIO ELECTRIC INC·Filed 2003·Granted Aug 2, 2005·0 cites·1 claims
- 1734US6713957B2Super-high pressure discharge lamp of the short arc typeUSHIO ELECTRIC INC·Filed 2002·Granted Mar 30, 2004·0 cites·19 claims
- 1833US8217576B2High pressure discharge lampISHIKAWA HIROHISA·Filed 2010·Granted Jul 10, 2012·0 cites·3 claims
- 1931US8072145B2Extra high pressure mercury lamp with each electrode held by a sealing portionKASAISHI SHUKI·Filed 2010·Granted Dec 6, 2011·0 cites·3 claims
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