Masayoshi Oshima

Person

Niiza, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Disc medium substrate and disc device
- Patent number 6,066,380
- Issue date May 23, 2000
- Sony Corporation
- Eiki Oyanagi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Magnetic disc substrate and a magnetic disc using the same
- Patent number 5,585,989
- Issue date Dec 17, 1996
- Sony Corporation
- Miyuki Kuromiya
- G11 - INFORMATION STORAGE
Information Patent Grant
Ring-opening hydrogenated copolymer and process for producing the same
- Patent number 5,580,934
- Issue date Dec 3, 1996
- Nippon Zeon Co., Ltd.
- Yoshikatsu Nishi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ring-opening hydrogenated copolymer and process for producing the same
- Patent number 5,191,026
- Issue date Mar 2, 1993
- Nippon Zeon Co., Ltd.
- Yoshikatsu Nishi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Molding material
- Patent number 5,143,979
- Issue date Sep 1, 1992
- Nippon Zeon Co., Ltd.
- Yoshikatsu Nishi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Optical disk
- Patent number 5,063,096
- Issue date Nov 5, 1991
- Nippon Zeon Co., Ltd.
- Teiji Kohara
- G02 - OPTICS
Information Patent Grant
Ring-opened polymer from norbornene type of polycyclic monomer and...
- Patent number 5,061,771
- Issue date Oct 29, 1991
- Nippon Zeon Co., Ltd.
- Masayoshi Oshima
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Novel optical material
- Patent number 5,043,395
- Issue date Aug 27, 1991
- Nippon Zeon Co., Ltd.
- Masayoshi Oshima
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing polymer by ring-opening polymerization
- Patent number 5,034,482
- Issue date Jul 23, 1991
- Nippon Zeon Co., Ltd.
- Teiji Kohara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Masayoshi Oshima

Person

Patents Grantslast 30 patents

Disc medium substrate and disc device

Magnetic disc substrate and a magnetic disc using the same

Ring-opening hydrogenated copolymer and process for producing the same

Ring-opening hydrogenated copolymer and process for producing the same

Molding material

Optical disk

Ring-opened polymer from norbornene type of polycyclic monomer and...

Novel optical material

Process for producing polymer by ring-opening polymerization