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Inventor

SHIGERU ISHII

Inventor
JP

Overview

2→
Patents
2024–2025
Patent span
Electricity
Primary field (CPC H)

Patents· 2 as inventor

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

G01Nprimary
G01NInvestigating or analysing materials by determining their chemical or physical properties20%
G01RMeasuring electric variables20%
H04BTransmission20%
H04JMultiplex communication20%
H05KPrinted circuits20%
PatentTitleYear
12,334,979Optical wavelength multiplexing transmission device and optical wavelength multiplexing transmission method202512,108,582Electronic device protection unit and electronic system2024

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2024Patents assigned to MITSUBISHI HEAVY IND LTD (1)· patent assignee history
2024–2025Based in JP· patent location history
2025Patents assigned to FUJITSU LTD (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FUJITSU LTD12025
MITSUBISHI HEAVY IND LTD12024
Locations
LocationPatentsSpan
JP22024–2025