Inventor

KATSUTOSHI KONDO

Inventor

Overview

5→

Patents

2022–2025

Patent span

Electricity

Primary field (CPC H)

Patents· 5 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H01Mprimary

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy21%

H02JElectric power networks21%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution21%

G01RMeasuring electric variables14%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein14%

G02BOptical elements, systems or apparatus7%

PatentTitleYear

12,461,160Battery management device, and electric power system2025 12,416,681Battery state estimation device and power system2025 12,155,216DC grid system, control device, and control method2024 11,656,486Optical waveguide device2023 11,347,086Optical element2022

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022–2023Patents assigned to SUMITOMO OSAKA CEMENT CO LTD (2)· patent assignee history

2022–2025Based in JP· patent location history

2024Patents assigned to HITACHI LTD (1)· patent assignee history

2025Patents assigned to HITACHI HIGH TECH CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI HIGH TECH CORP	2	2025
SUMITOMO OSAKA CEMENT CO LTD	2	2022–2023
HITACHI LTD	1	2024

Locations

Location	Patents	Span
JP	5	2022–2025