Hirai Akira

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Saitama-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Kitchen knife with sharpener
- Patent number 8,943,698
- Issue date Feb 3, 2015
- Forever Co., Ltd.
- Akira Hirai
- B24 - GRINDING POLISHING
Information Patent Grant
Sintered titanium cutlery having antibiotic activity
- Patent number 5,983,507
- Issue date Nov 16, 1999
- Akira Hirai
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Pressure molding means for powder
- Patent number 5,037,287
- Issue date Aug 6, 1991
- Akira Hirai
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
KITCHEN KNIFE WITH SHARPENER
- Publication number 20130205597
- Publication date Aug 15, 2013
- Forever Co., Ltd.
- Akira Hirai
- B24 - GRINDING POLISHING
Information Patent Application
Method for making a blade material and blade material manufactured...
- Publication number 20050142020
- Publication date Jun 30, 2005
- Hirai Akira
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Powder-sintered multi-layer tool part and manufacturing method thereof
- Publication number 20050089710
- Publication date Apr 28, 2005
- Akira, HIRAI
- Keita Hirai
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...