Inventor
MARUYAMA TAKEHIRO
JP11 patents
⚠️ This page may combine multiple inventors who share the name “MARUYAMA TAKEHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YANMAR HOLDINGS CO LTD
8 patentsUS12583570B2Mar 24, 2026
Fuel cell ship
YANMAR HOLDINGS CO LTD0 citations59
US12502967B2Dec 23, 2025
Fuel cell ship
YANMAR HOLDINGS CO LTD0 citations59
US12428118B2Sep 30, 2025
Fuel cell ship
YANMAR HOLDINGS CO LTD0 citations59
US12394809B2Aug 19, 2025
Fuel cell ship
YANMAR HOLDINGS CO LTD0 citations59
US12552271B2Feb 17, 2026
Fuel cell ship
YANMAR HOLDINGS CO LTD0 citations49
US12407005B2Sep 2, 2025
Fuel cell ship
YANMAR HOLDINGS CO LTD0 citations49
US12401050B2Aug 26, 2025
Fuel cell ship
YANMAR HOLDINGS CO LTD0 citations49
US12394810B2Aug 19, 2025
Fuel cell ship
YANMAR HOLDINGS CO LTD0 citations49
PANASONIC IP MAN CO LTD
3 patentsUS10050293B2Aug 14, 2018
Method for operating fuel cell system and method for estimating composition of fuel used in fuel cell system
PANASONIC IP MAN CO LTD0 citations40
US9515329B2Dec 6, 2016
Fuel cell system
PANASONIC IP MAN CO LTD0 citations40
US9871264B2Jan 16, 2018
Fuel cell system
PANASONIC IP MAN CO LTD0 citations33