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Inventor

Hiroshi Hiai

Inventor
Hitachi, JP

Overview

3→
Patents
1998–2012
Patent span
Chemistry
Primary field (CPC C)

Patents· 3 as inventor

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

C25Cprimary
C25CProcesses for the electrolytic production, recovery or refining of metals40%
Y02PClimate change mitigation technologies in the production or processing of goods40%
C22BProduction and refining of metals20%
PatentTitleYear
8,206,595'Method of recovering silver using anion-exchange resin'20125,865,967'Cathode plate used for hydro-electro-winning or electro-refining'19995,783,057'Method of purifying copper electrolytic solution'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–1999Patents assigned to NIPPON MINING CO (2)· patent assignee history
1998–2012Based in Hitachi, JP· patent location history
1999Based in Ibaraki, JP· patent location history
2012Patents assigned to ABE YOSHIFUMI (1)· patent assignee history
2012Patents assigned to HIAI HIROSHI (1)· patent assignee history
2012Patents assigned to JX Nippon Mining & Metals (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON MINING CO21998–1999
ABE YOSHIFUMI12012
HIAI HIROSHIself12012
JX Nippon Mining & Metals12012
Locations
LocationPatentsSpan
Hitachi, JP21998–2012
Ibaraki, JP11999