Inventor
KATSUKAWA HIROYUKI
JP14 patents
⚠️ This page may combine multiple inventors who share the name “KATSUKAWA HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NGK INSULATORS LTD
12 patentsUS6442015B1Aug 27, 2002
Electrochemical capacitors
NGK INSULATORS LTD81 citations97
US4833726AMay 23, 1989
Helmet with two-way radio communication faculty
NGK INSULATORS LTD108 citations95
US4648131AMar 3, 1987
Work helmet having transmitter-receiver for light signal
NGK INSULATORS LTD78 citations95
US5202812AApr 13, 1993
Apparatus for detecting faults on power transmission lines
NGK INSULATORS LTD72 citations94
US7914932B2Mar 29, 2011
All-solid-state battery
NGK INSULATORS LTD20 citations92
US6487066B1Nov 26, 2002
Electric double layer capacitor and method for producing the same
NGK INSULATORS LTD48 citations92
US7510800B2Mar 31, 2009
All-solid-state battery
NGK INSULATORS LTD11 citations84
US6309428B1Oct 30, 2001
Method for producing electrochemical capacitor
NGK INSULATORS LTD9 citations73
US5243293ASep 7, 1993
System utilizing optical current sensors for detecting fault location in substation
NGK INSULATORS LTD19 citations73
US5136680AAug 4, 1992
Optical fiber built-in type composite insulator and method for producing the same
NGK INSULATORS LTD13 citations73
US5069525ADec 3, 1991
Optical fiber built-in type composite insulator and method of producing the same
NGK INSULATORS LTD9 citations73
US6501640B1Dec 31, 2002
Electrochemical capacitor
NGK INSULATORS LTD7 citations72