Inventor

Yasuhiko Igawa

Inventor
Osaka, JP

Overview

3→
Patents
2003–2008
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.

C21Bprimary
C21BManufacture of iron or steel27%
C22BProduction and refining of metals27%
Y10TTechnical subjects covered by former us classification18%
C05DInorganic fertilisers not covered by subclasses c05b, c05c9%
C05GMixtures of fertilisers covered individually by different subclasses of class c059%
Y02PClimate change mitigation technologies in the production or processing of goods9%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003–2008Patents assigned to KOBE STEEL LTD (3)· patent assignee history
2003–2004Based in Osaka, JP· patent location history
2008Based in Kobe, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KOBE STEEL LTD32003–2008
Locations
LocationPatentsSpan
Osaka, JP22003–2004
Kobe, JP12008