Inventor

HISAHIKO NARUKAWA

Inventor

Overview

5→

Patents

2024–2025

Patent span

Fixed constructions

Primary field (CPC E)

Patents· 5 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus20%

LOC0820%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers10%

E05DHinges or suspension devices for doors, windows or wings10%

E05YIndexing scheme associated with subclasses e05d and e05f, relating to construction elements, electric control, power supply, power signal or transmission, user interfaces, mounting or coupling, details, accessories, auxiliary operations not otherwise provided for, application thereof10%

H02BBoards, substations or switching arrangements for the supply or distribution of electric power10%

H05KPrinted circuits10%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution10%

PatentTitleYear

12,371,937Hinge and door2025 12,111,508Package for optical fiber, package product, method for extracting optical fiber, and jig2024 D1044482Tray for storing optical fiber2024 D1043319Tray for storing optical fiber2024 11,864,340Rack for storing electrical equipment2024

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2024Patents assigned to SUMITOMO ELECTRIC OPTIFRONTIER CO LTD (3)· patent assignee history

2024–2025Patents assigned to SUMITOMO ELECTRIC INDUSTRIES (2)· patent assignee history

2024–2025Based in JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SUMITOMO ELECTRIC OPTIFRONTIER CO LTD	3	2024
SUMITOMO ELECTRIC INDUSTRIES	2	2024–2025

Locations

Location	Patents	Span
JP	5	2024–2025