Inventor

TAKEHISA Masashi

JP3 patents

Patents

3 patents

US11469699B2Oct 11, 2022

Work device

KOKI HOLDINGS CO LTD0 citations60

US12491621B2Dec 9, 2025

Electrical equipment and electrical equipment system

KOKI HOLDINGS CO LTD0 citations51

US12420400B2Sep 23, 2025

Battery pack and electrical device

KOKI HOLDINGS CO LTD0 citations46