Tohru Arai

Person

Toyoake-shi, Aichi-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of forming a nitride or carbonitride layer
- Patent number 5,443,662
- Issue date Aug 22, 1995
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Hard and lubricant thin film of iron base metallic material coated...
- Patent number 5,198,285
- Issue date Mar 30, 1993
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for ion nitriding aluminum material
- Patent number 4,909,862
- Issue date Mar 20, 1990
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Hideo Tachikawa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for surface treatment
- Patent number 4,892,759
- Issue date Jan 9, 1990
- Tohru Arai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Fluidized bed method of forming a nitride or carbonitride layer
- Patent number 4,871,401
- Issue date Oct 3, 1989
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of surface treatment and apparatus used therefor
- Patent number 4,844,949
- Issue date Jul 4, 1989
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for the surface treatment of an iron or iron alloy article
- Patent number 4,818,351
- Issue date Apr 4, 1989
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for the surface treatment of an iron or iron alloy article
- Patent number 4,804,445
- Issue date Feb 14, 1989
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Yukio Ohta
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for surface treatment
- Patent number 4,794,044
- Issue date Dec 27, 1988
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Surface treating method and apparatus
- Patent number 4,786,526
- Issue date Nov 22, 1988
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for surface treatment and treating material therefor
- Patent number 4,778,540
- Issue date Oct 18, 1988
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of treating the surface of iron alloy materials
- Patent number 4,765,847
- Issue date Aug 23, 1988
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of forming a carbide layer
- Patent number 4,686,117
- Issue date Aug 11, 1987
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for ion nitriding aluminum or aluminum alloys
- Patent number 4,597,808
- Issue date Jul 1, 1986
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Hideo Tachikawa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method of forming a nitride layer
- Patent number 4,569,862
- Issue date Feb 11, 1986
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Apparatus for physical vapor deposition
- Patent number 4,514,275
- Issue date Apr 30, 1985
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Hisashi Shimada
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for producing edged tools
- Patent number 4,453,987
- Issue date Jun 12, 1984
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for manufacturing boride dispersion copper alloys
- Patent number 4,436,559
- Issue date Mar 13, 1984
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Hironori Fujita
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Process for manufacturing boride dispersion copper alloys
- Patent number 4,436,560
- Issue date Mar 13, 1984
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Hironori Fujita
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for forming a carbide layer on the surface of a ferrous allo...
- Patent number 4,400,224
- Issue date Aug 23, 1983
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for forming a two-layered carbide surface on a ferrous-alloy...
- Patent number 4,250,208
- Issue date Feb 10, 1981
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Tohru Arai
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Treating composition, forming a mixed-carbide layer of Va-Group ele...
- Patent number 4,230,751
- Issue date Oct 28, 1980
- Kabushiki Kaisha Toyota
- Noboru Komatsu
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Treating bath, forming a mixed carbide layer of Va-Group elements o...
- Patent number 4,202,705
- Issue date May 13, 1980
- Kabushiki Kaisha Toyoto Chuo Kenkyusho
- Noboru Komatsu
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Method for forming a carbide layer of a Va-Group element of the per...
- Patent number 4,158,578
- Issue date Jun 19, 1979
- Kabushiki Kaisha Toyota Chuo Kenkyusho
- Noboru Komatsu
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Person

Patents Grantslast 30 patents

Method of forming a nitride or carbonitride layer

Hard and lubricant thin film of iron base metallic material coated...

Process for ion nitriding aluminum material

Method for surface treatment

Fluidized bed method of forming a nitride or carbonitride layer

Method of surface treatment and apparatus used therefor

Method for the surface treatment of an iron or iron alloy article

Method for the surface treatment of an iron or iron alloy article

Method for surface treatment

Surface treating method and apparatus

Method for surface treatment and treating material therefor

Method of treating the surface of iron alloy materials

Method of forming a carbide layer

Process for ion nitriding aluminum or aluminum alloys

Method of forming a nitride layer

Apparatus for physical vapor deposition

Method for producing edged tools

Process for manufacturing boride dispersion copper alloys

Process for manufacturing boride dispersion copper alloys

Method for forming a carbide layer on the surface of a ferrous allo...

Method for forming a two-layered carbide surface on a ferrous-alloy...

Treating composition, forming a mixed-carbide layer of Va-Group ele...

Treating bath, forming a mixed carbide layer of Va-Group elements o...

Method for forming a carbide layer of a Va-Group element of the per...