Tosiharu Harada

Person

Hiroshima, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Acicular hematite particles and magnetic recording medium
- Patent number 6,153,296
- Issue date Nov 28, 2000
- Toda Kogyo Corporation
- Kazuyuki Hayashi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Spindle-shaped magnetic iron based alloy particles and process for...
- Patent number 5,599,378
- Issue date Feb 4, 1997
- Toda Kogyo Corp.
- Akio Mishima
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic iron oxide particles and method of producing the same
- Patent number 5,582,914
- Issue date Dec 10, 1996
- Toda Kogyo Corp.
- Atsushi Takedoi
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for producing acicular goethite particles and acicular magn...
- Patent number 5,480,571
- Issue date Jan 2, 1996
- Toda Kogyo Corp.
- Masaru Isoai
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Spindle-shaped magnetic iron based alloy particles
- Patent number 5,466,306
- Issue date Nov 14, 1995
- Toda Kogyo Corp.
- Akio Mishima
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for producing acicular goethite particles and acicular magn...
- Patent number 5,399,278
- Issue date Mar 21, 1995
- Toda Kogyo Corp.
- Katsumi Yamashita
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Process for producing acicular geothite particles and acicular magn...
- Patent number 5,378,380
- Issue date Jan 3, 1995
- Toda Kogyo Corp.
- Masaru Isoai
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic iron oxide particles and method of producing same
- Patent number 5,314,750
- Issue date May 24, 1994
- Toda Kogyo Corp.
- Atsushi Takedoi
- G11 - INFORMATION STORAGE
Information Patent Grant
Spindle-like magnetic iron oxide particles and process for producin...
- Patent number 4,873,010
- Issue date Oct 10, 1989
- Toda Kogyo Corp.
- Atsushi Takedoi
- G11 - INFORMATION STORAGE
Information Patent Grant
Acicular ferromagnetic alloy particles for magnetic recording and p...
- Patent number 4,514,216
- Issue date Apr 30, 1985
- Toda Kogyo Corp.
- Akio Mishima
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for producing acicular magnetite or acicular maghemite
- Patent number 4,495,164
- Issue date Jan 22, 1985
- Toda Kogyo Corp.
- Yosiro Okuda
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Acicular ferromagnetic alloy particles and process for producing sa...
- Patent number 4,437,881
- Issue date Mar 20, 1984
- Toda Kogyo Corp.
- Akio Mishima
- G11 - INFORMATION STORAGE
Information Patent Grant
Process for producing acicular ferromagnetic alloy particles and ac...
- Patent number 4,406,694
- Issue date Sep 27, 1983
- Toda Kogyo Corp.
- Akio Mishima
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Production of acicular magnetic iron oxides
- Patent number 4,136,158
- Issue date Jan 23, 1979
- Toda Kogyo Corp.
- Yosiro Okuda
- C01 - INORGANIC CHEMISTRY

Tosiharu Harada

Person

Patents Grantslast 30 patents

Acicular hematite particles and magnetic recording medium

Spindle-shaped magnetic iron based alloy particles and process for...

Magnetic iron oxide particles and method of producing the same

Process for producing acicular goethite particles and acicular magn...

Spindle-shaped magnetic iron based alloy particles

Process for producing acicular goethite particles and acicular magn...

Process for producing acicular geothite particles and acicular magn...

Magnetic iron oxide particles and method of producing same

Spindle-like magnetic iron oxide particles and process for producin...

Acicular ferromagnetic alloy particles for magnetic recording and p...

Process for producing acicular magnetite or acicular maghemite

Acicular ferromagnetic alloy particles and process for producing sa...

Process for producing acicular ferromagnetic alloy particles and ac...

Production of acicular magnetic iron oxides