Iwao Ohshima

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Process for preparing silica having a low silanol content
- Patent number 5,202,104
- Issue date Apr 13, 1993
- Nitto Chemical Industry Co., Ltd.
- Naotake Watanabe
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for producing unsintered cristobalite particles
- Patent number 5,154,905
- Issue date Oct 13, 1992
- Nitto Chemical Industry Co., Ltd.
- Iwao Ohshima
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for producing unsintered cristobalite silica
- Patent number 4,853,198
- Issue date Aug 1, 1989
- Nitto Chemical Industry Co., Ltd.
- Koichi Orii
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for manufacturing high purity silica
- Patent number 4,683,128
- Issue date Jul 28, 1987
- Nitto Chemical Industry Co., Ltd.
- Koichi Orii
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Apparatus for stirring hydrogel particles of water-soluble polymer
- Patent number 4,607,958
- Issue date Aug 26, 1986
- Nitto Kagaku Kogyo Kabushiki Kaisha
- Iwao Ohshima
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for the preparation of unsaturated quaternary ammonium salts
- Patent number 4,362,890
- Issue date Dec 7, 1982
- Nitto Chemical Industry Co. Ltd.
- Iwao Ohshima
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for cooling polymeric hydrogel blocks
- Patent number 4,247,437
- Issue date Jan 27, 1981
- Nitto Chemical Industry Co., Ltd.
- Iwao Ohshima
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Metal surfaces coated with aliphatic acids containing 12 carbon ato...
- Patent number 4,165,419
- Issue date Aug 21, 1979
- Nitto Chemical Industry Co., Ltd.
- Naoyuki Suzuki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for preventing adhesiveness of a hydrogel of a water-soluble...
- Patent number 4,164,818
- Issue date Aug 21, 1979
- Nitto Chemical Industry Co., Ltd.
- Iwao Ohshima
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for reducing the adhesiveness of hydrogel-like polymer by ad...
- Patent number 4,134,871
- Issue date Jan 16, 1979
- Nitto Chemical Industry Co., Ltd.
- Hisao Otani
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Iwao Ohshima

Person

Patents Grantslast 30 patents

Process for preparing silica having a low silanol content

Method for producing unsintered cristobalite particles

Process for producing unsintered cristobalite silica

Process for manufacturing high purity silica

Apparatus for stirring hydrogel particles of water-soluble polymer

Process for the preparation of unsaturated quaternary ammonium salts

Method for cooling polymeric hydrogel blocks

Metal surfaces coated with aliphatic acids containing 12 carbon ato...

Method for preventing adhesiveness of a hydrogel of a water-soluble...

Method for reducing the adhesiveness of hydrogel-like polymer by ad...