Hiroshi Sumita

Person

Hiroshima, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Process for producing granular hematite particles
- Patent number 6,616,747
- Issue date Sep 9, 2003
- Toda Kogyo Corporation
- Hiroshi Sumita
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Fine yellow composite iron oxide hydroxide pigment, and paint or re...
- Patent number 6,139,618
- Issue date Oct 31, 2000
- Toda Kogyo Corporation
- Kazuyuki Hayashi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Non-magnetic black particles, non-magnetic black pigment therefrom...
- Patent number 6,117,540
- Issue date Sep 12, 2000
- Toda Kogyo Corporation
- Yasuyuki Tanaka
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Non-magnetic black particles, non-magnetic black pigment therefrom...
- Patent number 6,087,004
- Issue date Jul 11, 2000
- Toda Kogyo Corporation
- Yasuyuki Tanaka
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Yellow iron oxide hydroxide particles and process for producing the...
- Patent number 6,027,559
- Issue date Feb 22, 2000
- Toda Kogyo Corporation
- Hiroko Morii
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic iron oxide particles, a process for producing the same and...
- Patent number 5,449,565
- Issue date Sep 12, 1995
- Toda Kogyo Corporation
- Koso Aoki
- 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
Spindle ferromagnetic alloy particles
- Patent number 4,773,931
- Issue date Sep 27, 1988
- Toda Kogyo Corp.
- Akio Mishima
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Process for treating acicular magnetite containing Co to stabilize...
- Patent number 4,136,049
- Issue date Jan 23, 1979
- Toda Kogyo Corp.
- Nanao Horiishi
- G11 - INFORMATION STORAGE
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

Patents Applicationslast 30 patents

Information Patent Application
Process for producing granular hematite particles
- Publication number 20030051636
- Publication date Mar 20, 2003
- Hiroshi Sumita
- B82 - NANO-TECHNOLOGY

Hiroshi Sumita

Person

Patents Grantslast 30 patents

Process for producing granular hematite particles

Fine yellow composite iron oxide hydroxide pigment, and paint or re...

Non-magnetic black particles, non-magnetic black pigment therefrom...

Non-magnetic black particles, non-magnetic black pigment therefrom...

Yellow iron oxide hydroxide particles and process for producing the...

Magnetic iron oxide particles, a process for producing the same and...

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

Spindle ferromagnetic alloy particles

Process for treating acicular magnetite containing Co to stabilize...

Production of acicular magnetic iron oxides

Patents Applicationslast 30 patents

Process for producing granular hematite particles