Okai Kazuhisa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Surface-treated steel sheet
- Patent number 11,795,526
- Issue date Oct 24, 2023
- JFE Steel Corporation
- Masahiro Yoshida
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Steel sheet having a hot-dip Zn—Al—Mg-based coating film excellent...
- Patent number 11,618,938
- Issue date Apr 4, 2023
- JFE Steel Corporation
- Hiroki Harada
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Surface-treatment solution for zinc or zinc alloy coated steel shee...
- Patent number 11,174,556
- Issue date Nov 16, 2021
- JFE Steel Corporation
- Reona Endo
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Surface-treated galvanized steel sheet with superior flat-portion c...
- Patent number 8,304,092
- Issue date Nov 6, 2012
- JFE Steel Corporation
- Kazuhisa Okai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Surface-treated steel sheet with excellent corrosion resistance and...
- Patent number 8,012,599
- Issue date Sep 6, 2011
- JFE Steel Corporation
- Tatsuya Miyoshi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Surface-treated steel sheet
- Patent number 7,875,363
- Issue date Jan 25, 2011
- JFE Steel Corporation
- Kazuhisa Okai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Surface-treated steel sheet and method for manufacturing the same
- Patent number 7,842,400
- Issue date Nov 30, 2010
- JFE Steel Corporation
- Takafumi Yamaji
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Highly corrosion-resistant surface-treated steel sheet and method f...
- Patent number 7,517,591
- Issue date Apr 14, 2009
- JFE Steel Corporation
- Tatsuya Miyoshi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Surface-treated steel sheet excellent in corrosion resistance, cond...
- Patent number 7,348,068
- Issue date Mar 25, 2008
- JFE Steel Corporation
- Takeshi Matsuda
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Surface-treated steel sheets of good white rust resistance, and met...
- Patent number 7,291,402
- Issue date Nov 6, 2007
- JFE Steel Corporation
- Okai Kazuhisa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
SURFACE-TREATED STEEL SHEET FOR ORGANIC RESIN COATING AND METHOD OF...
- Publication number 20230332295
- Publication date Oct 19, 2023
- JFE STEEL CORPORATION
- Kazuhisa OKAI
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
SURFACE-TREATED STEEL SHEET
- Publication number 20220112579
- Publication date Apr 14, 2022
- JFE STEEL CORPORATION
- Masahiro Yoshida
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
STEEL SHEET HAVING A HOT-DIP Zn-Al-Mg-BASED COATING FILM EXCELLENT...
- Publication number 20210147971
- Publication date May 20, 2021
- JFE STEEL CORPORATION
- Hiroki Harada
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
SURFACE-TREATMENT SOLUTION FOR ZINC OR ZINC ALLOY COATED STEEL SHEE...
- Publication number 20190242018
- Publication date Aug 8, 2019
- JFE STEEL CORPORATION
- Reona ENDO
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Surface-treated galvanized steel sheet with superior flat-portion c...
- Publication number 20100035055
- Publication date Feb 11, 2010
- Kazuhisa Okai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Surface-Treated Steel Sheet
- Publication number 20090274926
- Publication date Nov 5, 2009
- Kazuhisa Okai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Surface-treated steel sheet with excellent corrosion resistance and...
- Publication number 20080070018
- Publication date Mar 20, 2008
- JFE STEEL CORPORATION
- Tatsuya Miyoshi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Surface-treated steel sheet and method for producing same
- Publication number 20060182988
- Publication date Aug 17, 2006
- Takafumi Yamaji
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Surface treated steel plate excellent in corrosion resitance electr...
- Publication number 20060177685
- Publication date Aug 10, 2006
- Takeshi Matsuda
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Highly corrosion-resistant surface-treated steel sheet and method f...
- Publication number 20060141230
- Publication date Jun 29, 2006
- JFE STEEL CORPORATION
- Tatsuya Miyoshi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Surface-treated steel sheet excellent in resistance to white rust a...
- Publication number 20050147832
- Publication date Jul 7, 2005
- Kazuhisa Okai
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Okai Kazuhisa

Person

Patents Grantslast 30 patents

Surface-treated steel sheet

Steel sheet having a hot-dip Zn—Al—Mg-based coating film excellent...

Surface-treatment solution for zinc or zinc alloy coated steel shee...

Surface-treated galvanized steel sheet with superior flat-portion c...

Surface-treated steel sheet with excellent corrosion resistance and...

Surface-treated steel sheet

Surface-treated steel sheet and method for manufacturing the same

Highly corrosion-resistant surface-treated steel sheet and method f...

Surface-treated steel sheet excellent in corrosion resistance, cond...

Surface-treated steel sheets of good white rust resistance, and met...

Patents Applicationslast 30 patents

SURFACE-TREATED STEEL SHEET FOR ORGANIC RESIN COATING AND METHOD OF...

SURFACE-TREATED STEEL SHEET

STEEL SHEET HAVING A HOT-DIP Zn-Al-Mg-BASED COATING FILM EXCELLENT...

SURFACE-TREATMENT SOLUTION FOR ZINC OR ZINC ALLOY COATED STEEL SHEE...

Surface-treated galvanized steel sheet with superior flat-portion c...

Surface-Treated Steel Sheet

Surface-treated steel sheet with excellent corrosion resistance and...

Surface-treated steel sheet and method for producing same

Surface treated steel plate excellent in corrosion resitance electr...

Highly corrosion-resistant surface-treated steel sheet and method f...

Surface-treated steel sheet excellent in resistance to white rust a...