Seiichi Hisano

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Ferromagnetic powder
- Patent number 6,506,264
- Issue date Jan 14, 2003
- Dowa Mining Co., Ltd.
- Seiichi Hisano
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Powder for use in lower layer of coating type magnetic recording me...
- Patent number 6,440,545
- Issue date Aug 27, 2002
- Dowa Mining Co., Ltd.
- Seiichi Hisano
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Particle for lower layer of coating type magnetic recording medium
- Patent number 6,171,692
- Issue date Jan 9, 2001
- Dowa Mining Co., Ltd.
- Seiichi Hisano
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Particles for lower layer of coating type magnetic recording medium
- Patent number 6,040,043
- Issue date Mar 21, 2000
- Dowa Mining Co., Ltd.
- Seiichi Hisano
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Coating type magnetic recording medium having a multilayer structure
- Patent number 5,902,676
- Issue date May 11, 1999
- Dowa Mining Co., Ltd.
- Seiichi Hisano
- G11 - INFORMATION STORAGE
Information Patent Grant
Ferromagnetic metal powder
- Patent number 5,591,535
- Issue date Jan 7, 1997
- Dowa Mining Co., Ltd.
- Seiichi Hisano
- G11 - INFORMATION STORAGE
Information Patent Grant
Ferromagnetic metal powder
- Patent number 5,534,361
- Issue date Jul 9, 1996
- Dowa Mining Co., Ltd.
- Seiichi Hisano
- G11 - INFORMATION STORAGE
Information Patent Grant
Permanent magnet alloy having improved resistance
- Patent number 5,269,855
- Issue date Dec 14, 1993
- Dowa Mining Co., Ltd.
- Toshio Ueda
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for production of permanent magnet alloy having improved re...
- Patent number 5,183,630
- Issue date Feb 2, 1993
- Dowa Mining Co., Ltd.
- Toshio Ueda
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Permanent magnet alloy having improved resistance to oxidation and...
- Patent number 5,147,473
- Issue date Sep 15, 1992
- Dowa Mining Co., Ltd.
- Toshio Ueda
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for measuring the basic amount in basic aluminum sulfate sol...
- Patent number 4,251,497
- Issue date Feb 17, 1981
- Dowa Mining Co. Ltd.
- Kazumasa Tezuka
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Seiichi Hisano

Person

Patents Grantslast 30 patents

Ferromagnetic powder

Powder for use in lower layer of coating type magnetic recording me...

Particle for lower layer of coating type magnetic recording medium

Particles for lower layer of coating type magnetic recording medium

Coating type magnetic recording medium having a multilayer structure

Ferromagnetic metal powder

Ferromagnetic metal powder

Permanent magnet alloy having improved resistance

Process for production of permanent magnet alloy having improved re...

Permanent magnet alloy having improved resistance to oxidation and...

Method for measuring the basic amount in basic aluminum sulfate sol...