Osamu Kubo

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Hexagonal system ferrite powder for a high density magnetic recordi...
- Patent number 5,766,763
- Issue date Jun 16, 1998
- Kabushiki Kaisha Toshiba
- Shunji Kurisu
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method of providing hexagonal ferrite magnetic powder with enhanced...
- Patent number 5,686,137
- Issue date Nov 11, 1997
- Kabushiki Kaisha Toshiba
- Etsuji Ogawa
- G11 - INFORMATION STORAGE
Information Patent Grant
High density magnetic recording medium containing hexagonal system...
- Patent number 5,576,114
- Issue date Nov 19, 1996
- Kabushiki Kaisha Toshiba
- Shunji Kurisu
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Magnetic powder for magnetic recording and magnetic recording mediu...
- Patent number 5,494,749
- Issue date Feb 27, 1996
- Kabushiki Kaisha Toshiba
- Osamu Kubo
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic powder for magnetic recording and magnetic recording mediu...
- Patent number 5,378,547
- Issue date Jan 3, 1995
- Kabushiki Kaisha Toshiba
- Osamu Kubo
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium
- Patent number 5,104,750
- Issue date Apr 14, 1992
- Kabushiki Kaisha Toshiba
- Osamu Kubo
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium containing a substituted hexagonal ferrit...
- Patent number 5,077,146
- Issue date Dec 31, 1991
- Kabushiki Kaisha Toshiba
- Osamu Kubo
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic powders for magnetic recording media and magnetic recordin...
- Patent number 4,636,433
- Issue date Jan 13, 1987
- Kabushiki Kaisha Toshiba
- Osamu Kubo
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Magnetic recording medium
- Patent number 4,606,971
- Issue date Aug 19, 1986
- Kabushiki Kaisha Toshiba
- Tadashi Ido
- G11 - INFORMATION STORAGE
Information Patent Grant
Barium ferrite magnetic powder and recording medium employing the same
- Patent number 4,582,623
- Issue date Apr 15, 1986
- Kabushiki Kaisha Toshiba
- Osamu Kubo
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for manufacturing a magnetic powder for high density magneti...
- Patent number 4,569,775
- Issue date Feb 11, 1986
- Tokyo Shibaura Denki Kabushiki Kaisha
- Osamu Kubo
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Production of a magnetic powder having a high dispersibility
- Patent number 4,493,874
- Issue date Jan 15, 1985
- Tokyo Shibaura Denki Kabushiki Kaisha
- Osamu Kubo
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Process for manufacturing powder for magnetic recording medium
- Patent number 4,407,721
- Issue date Oct 4, 1983
- Tokyo Shibaura Denki Kabushiki Kaisha
- Yoshiyasu Koike
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for manufacturing magnetic powder for high density magnetic...
- Patent number 4,341,648
- Issue date Jul 27, 1982
- Tokyo Shibaura Denki Kabushiki Kaisha
- Osamu Kubo
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Person

Patents Grantslast 30 patents

Hexagonal system ferrite powder for a high density magnetic recordi...

Method of providing hexagonal ferrite magnetic powder with enhanced...

High density magnetic recording medium containing hexagonal system...

Magnetic powder for magnetic recording and magnetic recording mediu...

Magnetic powder for magnetic recording and magnetic recording mediu...

Magnetic recording medium

Magnetic recording medium containing a substituted hexagonal ferrit...

Magnetic powders for magnetic recording media and magnetic recordin...

Magnetic recording medium

Barium ferrite magnetic powder and recording medium employing the same

Method for manufacturing a magnetic powder for high density magneti...

Production of a magnetic powder having a high dispersibility

Process for manufacturing powder for magnetic recording medium

Method for manufacturing magnetic powder for high density magnetic...