Inventor
KAWASHIMA TSUTOMU
JP26 patents
⚠️ This page may combine multiple inventors who share the name “KAWASHIMA TSUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PANASONIC IP MAN CO LTD
12 patentsUS10707494B2Jul 7, 2020
Gas diffusion layer for fuel cell, method for manufacturing said layer, membrane-electrode assembly, and fuel cell
PANASONIC IP MAN CO LTD3 citations72
US11276861B2Mar 15, 2022
Positive electrode for air battery
PANASONIC IP MAN CO LTD0 citations62
US12272849B2Apr 8, 2025
Membrane electrode assembly for fuel cell, and fuel cell
PANASONIC IP MAN CO LTD0 citations61
US10978716B2Apr 13, 2021
Gas diffusion layer for fuel battery, membrane electrode assembly, and fuel battery
PANASONIC IP MAN CO LTD0 citations59
US11489174B2Nov 1, 2022
Fuel battery cell, fuel battery, and method of manufacturing fuel battery cell
PANASONIC IP MAN CO LTD0 citations52
US11515542B2Nov 29, 2022
Fuel battery
PANASONIC IP MAN CO LTD0 citations51
US10923742B2Feb 16, 2021
Fuel cell and method for manufacturing fuel cell
PANASONIC IP MAN CO LTD0 citations51
US12368176B2Jul 22, 2025
Membrane electrode assembly and fuel cell
PANASONIC IP MAN CO LTD0 citations50
US12126030B2Oct 22, 2024
Fuel-cell cell
PANASONIC IP MAN CO LTD0 citations47
US11108055B2Aug 31, 2021
Fuel cell
PANASONIC IP MAN CO LTD0 citations45
US10326150B2Jun 18, 2019
Fuel cell module, fuel cell stack, and method for producing fuel cell module
PANASONIC IP MAN CO LTD0 citations38
US10847826B2Nov 24, 2020
Polymer electrolyte fuel cells and production method thereof
PANASONIC IP MAN CO LTD0 citations37
PANASONIC CORP
4 patentsUS7632589B2Dec 15, 2009
Fuel-cell stack and fuel cell
PANASONIC CORP13 citations79
US11984607B2May 14, 2024
Gas diffusion layer, membrane electrode assembly, fuel cell, and manufacturing method of gas diffusion layer
PANASONIC CORP0 citations61
US8361673B2Jan 29, 2013
Fuel cell and method for manufacturing same
PANASONIC CORP2 citations56
US10326148B2Jun 18, 2019
Fuel cell gas diffusion layer and method of manufacturing same
PANASONIC CORP0 citations40