Toyofumi Watanabe

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for cleaning wire and device therefor
- Patent number 10,689,765
- Issue date Jun 23, 2020
- Nakagawa Special Steel Inc.
- Toyofumi Watanabe
- B08 - CLEANING
Information Patent Grant
Resin-coated metal sheet
- Patent number 7,691,483
- Issue date Apr 6, 2010
- JFE Steel Corporation
- Yoichiro Yamanaka
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for producing galvanized steel sheet
- Patent number 5,997,664
- Issue date Dec 7, 1999
- NKK Corporation
- Kenji Tahara
- C21 - METALLURGY OF IRON
Information Patent Grant
Zinciferous plated steel sheet and method for manufacturing same
- Patent number 5,861,218
- Issue date Jan 19, 1999
- NKK Cororation
- Michitaka Sakurai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Zinc-electroplated steel sheet and method thereof
- Patent number 5,810,991
- Issue date Sep 22, 1998
- NKK Corporation
- Takayuki Urakawa
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Zinc-electroplated steel sheet
- Patent number 5,650,238
- Issue date Jul 22, 1997
- NKK Corporation
- Takayuki Urakawa
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Weldable black steel sheet
- Patent number 5,641,578
- Issue date Jun 24, 1997
- NKK Corporation
- Naoto Yoshimi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Alloying-treated iron-zinc alloy dip-plated steel sheet excellent i...
- Patent number 5,629,099
- Issue date May 13, 1997
- NKK Corporation
- Michitaka Sakurai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Weldable colored steel sheet
- Patent number 5,609,968
- Issue date Mar 11, 1997
- NKK Corporation
- Naoto Yoshimi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Weldable black steel sheet
- Patent number 5,589,279
- Issue date Dec 31, 1996
- NKK Corporation
- Naoto Yoshimi
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Weldable colored steel sheet
- Patent number 5,556,715
- Issue date Sep 17, 1996
- NKK Corporation
- Naoto Yoshimi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Surface treated steel sheet
- Patent number 5,500,290
- Issue date Mar 19, 1996
- NKK Corporation
- Satoru Udagawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Zinc-plated steel plate having resin coating film
- Patent number 5,496,652
- Issue date Mar 5, 1996
- NKK Corporation
- Kenichi Sasaki
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for producing zinc coated steel sheet
- Patent number 5,494,706
- Issue date Feb 27, 1996
- NKK Corporation
- Masaki Abe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of manufacturing plated steel sheet with zn-cr alloy plating
- Patent number 5,458,764
- Issue date Oct 17, 1995
- NKK Corporation
- Takayuki Urakawa
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Nickel alloy electroplated cold-rolled steel sheet excellent in pre...
- Patent number 5,456,816
- Issue date Oct 10, 1995
- NKK Corporation
- Toyofumi Watanabe
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Organic composite coated steel sheet and a process for manufacturin...
- Patent number 5,429,880
- Issue date Jul 4, 1995
- NKK Corporation
- Takahiro Kubota
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method of manufacturing plated steel sheet with Zn-Cr composite pla...
- Patent number 5,421,988
- Issue date Jun 6, 1995
- NKK Corporation
- Satoru Ando
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Zinciferous plated steel sheet excellent in press-formability and c...
- Patent number 5,393,605
- Issue date Feb 28, 1995
- NKK Corporation
- Tatsuya Miyoshi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for continuously tin-electroplating metal strip
- Patent number 5,391,290
- Issue date Feb 21, 1995
- NKK Corporation
- Mikiyuki Ichiba
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Weldable black steel sheet with low-gloss appearance
- Patent number 5,387,473
- Issue date Feb 7, 1995
- NKK Corporation
- Naoto Yoshimi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Nickel alloy electroplated cold-rolled steel sheet excellent in pre...
- Patent number 5,336,567
- Issue date Aug 9, 1994
- NKK Corporation
- Toyofumi Watanabe
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Method for manufacturing tin-electroplated cold-rolled steel strip
- Patent number 5,275,716
- Issue date Jan 4, 1994
- NKK Corporation
- Katsumi Kojima
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Method for manufacturing electrolytically chromated steel sheet
- Patent number 4,898,649
- Issue date Feb 6, 1990
- NKK Corporation
- Hiroki Iwasa
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Method for manufacturing electrolytically chromated steel sheet
- Patent number 4,875,984
- Issue date Oct 24, 1989
- NKK Corporation
- Hiroki Iwasa
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR

Patents Applicationslast 30 patents

Information Patent Application
Method for Cleaning Wire and Device Therefor
- Publication number 20170306508
- Publication date Oct 26, 2017
- Nakagawa Special Steel Inc.
- Toyofumi Watanabe
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Resin-Coated Metal Sheet
- Publication number 20080261063
- Publication date Oct 23, 2008
- JFE STEEL CORPORATION
- Yoichiro Yamanaka
- B32 - LAYERED PRODUCTS
Information Patent Application
Resin-Coated Metal Sheet
- Publication number 20070202309
- Publication date Aug 30, 2007
- Yoichiro Yamanaka
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Toyofumi Watanabe

Person

Patents Grantslast 30 patents

Method for cleaning wire and device therefor

Resin-coated metal sheet

Method for producing galvanized steel sheet

Zinciferous plated steel sheet and method for manufacturing same

Zinc-electroplated steel sheet and method thereof

Zinc-electroplated steel sheet

Weldable black steel sheet

Alloying-treated iron-zinc alloy dip-plated steel sheet excellent i...

Weldable colored steel sheet

Weldable black steel sheet

Weldable colored steel sheet

Surface treated steel sheet

Zinc-plated steel plate having resin coating film

Method for producing zinc coated steel sheet

Method of manufacturing plated steel sheet with zn-cr alloy plating

Nickel alloy electroplated cold-rolled steel sheet excellent in pre...

Organic composite coated steel sheet and a process for manufacturin...

Method of manufacturing plated steel sheet with Zn-Cr composite pla...

Zinciferous plated steel sheet excellent in press-formability and c...

Method for continuously tin-electroplating metal strip

Weldable black steel sheet with low-gloss appearance

Nickel alloy electroplated cold-rolled steel sheet excellent in pre...

Method for manufacturing tin-electroplated cold-rolled steel strip

Method for manufacturing electrolytically chromated steel sheet

Method for manufacturing electrolytically chromated steel sheet

Patents Applicationslast 30 patents

Method for Cleaning Wire and Device Therefor

Resin-Coated Metal Sheet

Resin-Coated Metal Sheet