Inventor
NAGASAWA MASAKAZU
JP36 patents
⚠️ This page may combine multiple inventors who share the name “NAGASAWA MASAKAZU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOITO MFG CO LTD
16 patentsUS5220235AJun 15, 1993
Discharge lamp device
KOITO MFG CO LTD137 citations96
US5936349AAug 10, 1999
Arc tube having a pair of molybdenum foils, and method for its fabrication
KOITO MFG CO LTD31 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
US5757110AMay 26, 1998
Electrical discharge lamp with ultraviolet filtering globe having rear end part supported insulating base
KOITO MFG CO LTD25 citations91
US5463270AOct 31, 1995
Insulating base for discharge lamp device
KOITO MFG CO LTD26 citations91
US4769574ASep 6, 1988
Incandescent lamp with a metal coupling to a plastic lamp base for automotive headlamp and like lighting applications
KOITO MFG CO LTD32 citations91
US6557379B1May 6, 2003
Method of producing an arc tube
KOITO MFG CO LTD19 citations83
US6547619B1Apr 15, 2003
ARC tube for discharge lamp unit and method of manufacturing same
KOITO MFG CO LTD10 citations73
US5059855AOct 22, 1991
Discharge lamp base construction
KOITO MFG CO LTD17 citations73
US5432399AJul 11, 1995
Discharge lamp apparatus
KOITO MFG CO LTD18 citations72
US5177397AJan 5, 1993
Discharge lamp assembly with insulating tubular member and metal band around pinch seal
KOITO MFG CO LTD11 citations72
US4339685AJul 13, 1982
Sealed beam lamp assembly
KOITO MFG CO LTD10 citations68
US6616494B1Sep 9, 2003
Method and apparatus for supplying pellets to arc tube for discharge lamp
KOITO MFG CO LTD2 citations62
US5186671AFeb 16, 1993
Manufacturing method of discharge lamp electrode
KOITO MFG CO LTD5 citations61
US6321799B1Nov 27, 2001
Method and apparatus for supplying mercury to arc tube for discharge lamp
KOITO MFG CO LTD0 citations41
BRIDGESTONE CORP
11 patentsUS9772002B2Sep 26, 2017
Vibration isolator
BRIDGESTONE CORP10 citations84
US9726251B2Aug 8, 2017
Vibration isolator
BRIDGESTONE CORP9 citations84
US11292329B2Apr 5, 2022
Active anti-vibration device and method of controlling active-vibration device
BRIDGESTONE CORP2 citations73
US10030738B2Jul 24, 2018
Vibration-damping device
BRIDGESTONE CORP6 citations73
US9719576B2Aug 1, 2017
Vibration isolator
BRIDGESTONE CORP3 citations73
US10221916B2Mar 5, 2019
Anti-vibration apparatus
BRIDGESTONE CORP2 citations72
US9939038B2Apr 10, 2018
Vibration-damping device
BRIDGESTONE CORP3 citations70
US10480607B2Nov 19, 2019
Vibration-damping device
BRIDGESTONE CORP1 citations62
US9759285B2Sep 12, 2017
Vibration damping device
BRIDGESTONE CORP0 citations42
US10788093B2Sep 29, 2020
Vibration-damping device
BRIDGESTONE CORP0 citations40
US10760641B2Sep 1, 2020
Vibration damping device
BRIDGESTONE CORP0 citations40
NGK SPARK PLUG CO
5 patentsUS6900412B2May 31, 2005
Glow plug
NGK SPARK PLUG CO12 citations84
US6844525B2Jan 18, 2005
Glow plug and glow-plug-mounting structure
NGK SPARK PLUG CO10 citations74
US6744015B2Jun 1, 2004
Heater and method for manufacturing the same
NGK SPARK PLUG CO9 citations74
US6414273B1Jul 2, 2002
Glow plug control apparatus, glow plug, and method of detecting ions in engine combustion chamber
NGK SPARK PLUG CO9 citations74
US6770850B2Aug 3, 2004
Heater
NGK SPARK PLUG CO5 citations63