Inventor

TSUBOTA AKIRA

JP3 patents

⚠️ This page may combine multiple inventors who share the name “TSUBOTA AKIRA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

2 patents

US10461538B2Oct 29, 2019

System stabilization control device and power system control system

HITACHI LTD3 citations71

US11404873B2Aug 2, 2022

Power system operation assisting device and method, and oscillation suppression system

HITACHI LTD0 citations44

ASANUMA CORP

1 patent

US5287650AFeb 22, 1994

Structured medium for the cultivation of greenery and a waterproofing system to facilitate the installation of said medium on buildings

ASANUMA CORP60 citations89