Inventor

Yoshiei Kato

Inventor

Chiba, JP

Overview

11→

Patents

1982–2007

Patent span

Chemistry

Primary field (CPC C)

Patents· 11 as inventor

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

C21Cprimary

C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel32%

C01BNon-metallic elements14%

C30BSingle-crystal growth9%

Y02PClimate change mitigation technologies in the production or processing of goods9%

A62DChemical means for extinguishing fires or for combating or protecting against harmful chemical agents5%

B09CReclamation of contaminated soil5%

B22DCasting of metals5%

C02FTreatment of water, waste water, sewage, or sludge5%

C22CAlloys5%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation5%

PatentTitleYear

7,166,759'Remediation method of media and iron powder for dehalogenation of hydrogenated hydrocarbons'2007 6,231,826'Process and apparatus for refining silicon'2001 6,090,361'Method for producing silicon for use in solar cells'2000 5,961,944'Process and apparatus for manufacturing polycrystalline silicon, and process for manufacturing silicon wafer for solar cell'1999 5,616,188'Method of producing molten aluminum-killed steel for thin steel sheet'1997 5,609,199'Method of manufacturing steel containing Ca'1997 5,304,231'Method of refining of high purity steel'1994 4,592,778'Steelmaking of an extremely low carbon steel in a converter'1986 4,543,125'Process of making steel in converter using a great amount of iron-bearing cold material'1985 4,409,024'Top-and-bottom blown converter steel making process'1983 4,330,108'Method for cooling tuyeres'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–2001Patents assigned to KAWASAKI STEEL CO (9)· patent assignee history

1982–2007Based in Chiba, JP· patent location history

1986Patents assigned to KAWASAKI STEEL COMPANY (1)· patent assignee history

2007Patents assigned to JFE STEEL CORP (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KAWASAKI STEEL CO	9	1982–2001
JFE STEEL CORP	1	2007
KAWASAKI STEEL COMPANY	1	1986

Locations

Location	Patents	Span
Chiba, JP	11	1982–2007