Akira Yorifuji

Person

Aichi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
High-workability steel pipe and method of producing same
- Patent number 7,591,914
- Issue date Sep 22, 2009
- JFE Steel Corporation
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Grant
Steel pipe for use in reinforcement of automobile and method for pr...
- Patent number 7,018,488
- Issue date Mar 28, 2006
- JFE Steel Corporation
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Grant
Stainless steel tube for automobile structure
- Patent number 6,755,919
- Issue date Jun 29, 2004
- JFE Steel Corporation
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Grant
Welded steel pipe having excellent hydroformability and method for...
- Patent number 6,749,954
- Issue date Jun 15, 2004
- JFE Steel Corporation
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Grant
High carbon steel pipe excellent in cold formability and high frequ...
- Patent number 6,736,910
- Issue date May 18, 2004
- JFE Steel Corporation
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Grant
Welded steel pipe having excellent hydroformability and method for...
- Patent number 6,723,453
- Issue date Apr 20, 2004
- JFE Steel Corporation
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Grant
Welded steel pipe having excellent hydroformability and method for...
- Patent number 6,682,829
- Issue date Jan 27, 2004
- JFE Steel Corporation
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Grant
Rolling mill and rolling-mill train
- Patent number 6,505,491
- Issue date Jan 14, 2003
- Sumitomo Heavy Industries, Ltd.
- Shigeharu Ochi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for smoothing steel pipe seam portion
- Patent number 6,375,059
- Issue date Apr 23, 2002
- Kawasaki Steel Corporation
- Toshio Ohnishi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Steel pipe having high ductility and high strength and process for...
- Patent number 6,331,216
- Issue date Dec 18, 2001
- Kawasaki Steel Corporation
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Grant
Ultrafine-grain steel pipe and process for manufacturing the same
- Patent number 6,290,789
- Issue date Sep 18, 2001
- Kawasaki Steel Corporation
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Grant
Rolling mill
- Patent number 6,216,520
- Issue date Apr 17, 2001
- Kawasaki Steel Corporation
- Shigeharu Ochi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus and method for smoothing a welded seam of steel pipe
- Patent number 6,216,511
- Issue date Apr 17, 2001
- Kawasaki Steel Corporation
- Toshio Ohnishi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Plug and mandrel bar for seamless steel pipe rolling operation for...
- Patent number 6,202,463
- Issue date Mar 20, 2001
- Kawasaki Steel Corporation
- Akira Yorifuji
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of preparing a steel pipe, an apparatus thereof and a steel...
- Patent number 6,006,789
- Issue date Dec 28, 1999
- Kawasaki Steel Corporation
- Takaaki Toyooka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Lubricant for use in hot work
- Patent number 5,983,689
- Issue date Nov 16, 1999
- Kawasaki Steel Corporation
- Akira Yorifuji
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Forged roll for rolling a seamless steel pipe and manufacturing met...
- Patent number 5,950,310
- Issue date Sep 14, 1999
- Kawasaki Steel Corporation
- Taro Kanayama
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of and apparatus for producing steel pipes
- Patent number 5,942,132
- Issue date Aug 24, 1999
- Kawasaki Steel Corporation
- Takaaki Toyooka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Lubricant for use in hot work
- Patent number 5,859,124
- Issue date Jan 12, 1999
- Kawasaki Steel Corporation
- Akira Yorifuji
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Forged roll for rolling a seamless steel pipe
- Patent number 5,813,962
- Issue date Sep 29, 1998
- Kawasaki Steel Corporation
- Taro Kanayama
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Tube with high dimensional accuracy, and method and device for manu...
- Publication number 20060218985
- Publication date Oct 5, 2006
- Kazuhito Kenmochi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Method of producing high-carbon steel pipe having superior cold wor...
- Publication number 20040099355
- Publication date May 27, 2004
- JFE Steel Corporation, a corporation of Japan
- Takaaki Toyooka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Super fine granular steel pipe and method for producing the same
- Publication number 20030221753
- Publication date Dec 4, 2003
- Kawasaki Steel Corporation
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Application
Steel pipe having high formability and method for production thereof
- Publication number 20030145913
- Publication date Aug 7, 2003
- Takaaki Toyooka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Stainless-steel pipe with excellent suitability for secondary proce...
- Publication number 20030057695
- Publication date Mar 27, 2003
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Application
Steel pipe for use in reinforcement of automobile and method for pr...
- Publication number 20030051782
- Publication date Mar 20, 2003
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Application
Welded steel pipe having excellent hydroformability and method for...
- Publication number 20030044638
- Publication date Mar 6, 2003
- Kawasaki Steel Corporation
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Application
Welded steel pipe having excellent hydroformability and method for...
- Publication number 20030008171
- Publication date Jan 9, 2003
- KAWASAKI STELL CORPORATION
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Application
Welded steel pipe having excellent hydroformability and method for...
- Publication number 20020192495
- Publication date Dec 19, 2002
- Kawasaki Steel Corporation
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Application
High carbon steel pipe excellent in cold formability and high frequ...
- Publication number 20020153070
- Publication date Oct 24, 2002
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Application
Super fine granular steel pipe and method for producing the same
- Publication number 20010027831
- Publication date Oct 11, 2001
- Kawasaki Steel Corporation
- Takaaki Toyooka
- C21 - METALLURGY OF IRON
Information Patent Application
Rolling mill and rolling-mill train
- Publication number 20010027673
- Publication date Oct 11, 2001
- Shigeharu Ochi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Method for smoothing steel pipe seam portion
- Publication number 20010013533
- Publication date Aug 16, 2001
- Kawasaki Steel Corporation
- Toshio Ohnishi
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Akira Yorifuji

Person

Patents Grantslast 30 patents

High-workability steel pipe and method of producing same

Steel pipe for use in reinforcement of automobile and method for pr...

Stainless steel tube for automobile structure

Welded steel pipe having excellent hydroformability and method for...

High carbon steel pipe excellent in cold formability and high frequ...

Welded steel pipe having excellent hydroformability and method for...

Welded steel pipe having excellent hydroformability and method for...

Rolling mill and rolling-mill train

Method for smoothing steel pipe seam portion

Steel pipe having high ductility and high strength and process for...

Ultrafine-grain steel pipe and process for manufacturing the same

Rolling mill

Apparatus and method for smoothing a welded seam of steel pipe

Plug and mandrel bar for seamless steel pipe rolling operation for...

Method of preparing a steel pipe, an apparatus thereof and a steel...

Lubricant for use in hot work

Forged roll for rolling a seamless steel pipe and manufacturing met...

Method of and apparatus for producing steel pipes

Lubricant for use in hot work

Forged roll for rolling a seamless steel pipe

Patents Applicationslast 30 patents

Tube with high dimensional accuracy, and method and device for manu...

Method of producing high-carbon steel pipe having superior cold wor...

Super fine granular steel pipe and method for producing the same

Steel pipe having high formability and method for production thereof

Stainless-steel pipe with excellent suitability for secondary proce...

Steel pipe for use in reinforcement of automobile and method for pr...

Welded steel pipe having excellent hydroformability and method for...

Welded steel pipe having excellent hydroformability and method for...

Welded steel pipe having excellent hydroformability and method for...

High carbon steel pipe excellent in cold formability and high frequ...

Super fine granular steel pipe and method for producing the same

Rolling mill and rolling-mill train

Method for smoothing steel pipe seam portion