Masayoshi Akiyama

Person

Osaka-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Plug, method of expanding inside diameter of metal pipe or tube usi...
- Patent number 8,079,243
- Issue date Dec 20, 2011
- Sumitomo Metal Industries, Ltd.
- Tatsuya Okui
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Apparatus for pipe end sizing and method for pipe end sizing
- Patent number 7,788,957
- Issue date Sep 7, 2010
- Sumitomo Metal Industries, Ltd.
- Tatsuya Okui
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Mechanical pipe-end expander and a method of manufacturing seamless...
- Patent number 7,765,850
- Issue date Aug 3, 2010
- Sumitomo Metal Industries, Ltd.
- Tsutomu Arita
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Die, method of manufacturing stepped metal pipe or tube, and steppe...
- Patent number 7,401,486
- Issue date Jul 22, 2008
- Sumitomo Metal Industries, Ltd.
- Tatsuya Okui
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Inclined-rolling method and inclined rolling apparatus
- Patent number 5,477,719
- Issue date Dec 26, 1995
- Sumitomo Metal Industries, Ltd.
- Masayoshi Akiyama
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Cold Working Lubricant and Cold Working Method for Steel Pipe
- Publication number 20100132427
- Publication date Jun 3, 2010
- Sumitomo Metal Industries, Ltd.
- MASAYOSHI AKIYAMA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
COLD WORKING LUBRICANT AND COLD WORKING METHOD FOR STEEL PIPE
- Publication number 20090090439
- Publication date Apr 9, 2009
- Sumitomo Metal Industries, Ltd.
- MASAYOSHI AKIYAMA
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Mechanical pipe-end expander and a method of manufacturing seamless...
- Publication number 20090038366
- Publication date Feb 12, 2009
- Tsutomu Arita
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Apparatus for pipe end sizing and method for pipe end sizing
- Publication number 20090038367
- Publication date Feb 12, 2009
- Tatsuya Okui
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Plug, Method of Expanding Inside Diameter of Metal Pipe or Tube Usi...
- Publication number 20080216544
- Publication date Sep 11, 2008
- Sumitomo Metal Industries, Ltd.
- Tatsuya Okui
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Die, method of manufacturing stepped metal pipe or tube, and steppe...
- Publication number 20080072647
- Publication date Mar 27, 2008
- Tatsuya Okui
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Die, method of manufacturing stepped metal pipe or tube, and steppe...
- Publication number 20070157694
- Publication date Jul 12, 2007
- Sumitomo Metal Industries, Ltd.
- Tatsuya Okui
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Masayoshi Akiyama

Person

Patents Grantslast 30 patents

Plug, method of expanding inside diameter of metal pipe or tube usi...

Apparatus for pipe end sizing and method for pipe end sizing

Mechanical pipe-end expander and a method of manufacturing seamless...

Die, method of manufacturing stepped metal pipe or tube, and steppe...

Inclined-rolling method and inclined rolling apparatus

Patents Applicationslast 30 patents

Cold Working Lubricant and Cold Working Method for Steel Pipe

COLD WORKING LUBRICANT AND COLD WORKING METHOD FOR STEEL PIPE

Mechanical pipe-end expander and a method of manufacturing seamless...

Apparatus for pipe end sizing and method for pipe end sizing

Plug, Method of Expanding Inside Diameter of Metal Pipe or Tube Usi...

Die, method of manufacturing stepped metal pipe or tube, and steppe...

Die, method of manufacturing stepped metal pipe or tube, and steppe...