Ryoichi Sudo

Person

Yokusuka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical disc
- Patent number 6,573,025
- Issue date Jun 3, 2003
- Hitachi, Ltd.
- Hiroaki Miwa
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of manufacturing optical discs
- Patent number 6,465,151
- Issue date Oct 15, 2002
- Hitachi, Ltd.
- Hiroaki Miwa
- G11 - INFORMATION STORAGE
Information Patent Grant
High voltage transformer and ignition transformer using the same
- Patent number 6,191,675
- Issue date Feb 20, 2001
- Hitachi, Ltd.
- Ryoichi Sudo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical recording and reproduction apparatus
- Patent number 6,140,028
- Issue date Oct 31, 2000
- Hitachi, Ltd.
- Hiroaki Miwa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc
- Patent number 5,906,907
- Issue date May 25, 1999
- Hitachi, Ltd.
- Hiroaki Miwa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk producing apparatus
- Patent number 5,766,407
- Issue date Jun 16, 1998
- Hitachi, Ltd.
- Hiroaki Miwa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical reproduction apparatus
- Patent number 5,686,227
- Issue date Nov 11, 1997
- Hitachi, Ltd.
- Hiroaki Miwa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk producing apparatus
- Patent number 5,582,677
- Issue date Dec 10, 1996
- Hitachi, Ltd.
- Hiroaki Miwa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical recording and reproduction apparatus
- Patent number 5,543,271
- Issue date Aug 6, 1996
- Hitachi, Ltd.
- Hiroaki Miwa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical data recording medium
- Patent number 5,427,893
- Issue date Jun 27, 1995
- Hitachi Maxell, Ltd.
- Eiji Koyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Optical disc
- Patent number 5,401,610
- Issue date Mar 28, 1995
- Hitachi, Ltd.
- Hiroaki Miwa
- G11 - INFORMATION STORAGE
Information Patent Grant
Diacylhydrazine photo-reactive compounds
- Patent number 5,399,758
- Issue date Mar 21, 1995
- Hitachi, Ltd.,
- Toshimasa Miura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Insulating coating composition, solderable insulated wires, product...
- Patent number 5,254,659
- Issue date Oct 19, 1993
- Hitachi, Ltd.
- Tetsuo Tajima
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of manufacturing an optical disc
- Patent number 5,244,775
- Issue date Sep 14, 1993
- Hitachi, Ltd.
- Hiroaki Miwa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical data recording medium and manufacturing method thereof
- Patent number 5,234,792
- Issue date Aug 10, 1993
- Hitachi Maxell, Ltd.
- Eiji Koyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for making a cathode ray tube
- Patent number 5,084,225
- Issue date Jan 28, 1992
- Hitachi, Ltd.
- Toshimasa Ishigaki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Replica plate, process for producing the same and projection type t...
- Patent number 5,071,236
- Issue date Dec 10, 1991
- Hitachi, Ltd.
- Ryoichi Sudo
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Materials for optical use
- Patent number 4,957,990
- Issue date Sep 18, 1990
- Hitachi, Ltd.
- Ryoichi Sudo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for producing optical disk base
- Patent number 4,897,228
- Issue date Jan 30, 1990
- Hitachi, Ltd.
- Hiroaki Miwa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical recording disk
- Patent number 4,889,757
- Issue date Dec 26, 1989
- Hitachi, Ltd.
- Shinkichi Horigome
- G11 - INFORMATION STORAGE
Information Patent Grant
Unsaturated polyester resin composition for cathode ray tube and it...
- Patent number 4,866,338
- Issue date Sep 12, 1989
- Hitachi, Ltd.
- Toshimasa Ishigaki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Optical disc
- Patent number 4,835,027
- Issue date May 30, 1989
- Hitachi, Ltd.
- Ryoichi Sudo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Optical disc base plate and process for producing the same
- Patent number 4,812,346
- Issue date Mar 14, 1989
- Hitachi Ltd.
- Ryoichi Sudo
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Optical disc base plate having a primer layer formed of an ultravio...
- Patent number 4,729,938
- Issue date Mar 8, 1988
- Hitachi, Ltd.
- Tetsuo Tajima
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Optical disc
- Patent number 4,668,550
- Issue date May 26, 1987
- Hitachi, Ltd.
- Tetsuo Tajima
- G11 - INFORMATION STORAGE
Information Patent Grant
Organosilicone homeotropic alignment layer with OH group
- Patent number 4,472,028
- Issue date Sep 18, 1984
- Hitachi, Ltd.
- Michio Ooue
- G02 - OPTICS
Information Patent Grant
Substrate for optical disc recording media
- Patent number 4,456,659
- Issue date Jun 26, 1984
- Hitachi, Ltd.
- Ryoichi Sudo
- G11 - INFORMATION STORAGE
Information Patent Grant
Liquid crystal display device
- Patent number 4,437,731
- Issue date Mar 20, 1984
- Hitachi, Ltd.
- Ryoichi Sudo
- G02 - OPTICS
Information Patent Grant
Composition and process for preparing transparent conducting film
- Patent number 4,420,500
- Issue date Dec 13, 1983
- Hitachi, Ltd.
- Mitsuo Nakatani
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing transparent electroconductive film
- Patent number 4,369,208
- Issue date Jan 18, 1983
- Hitachi, Ltd.
- Masaaki Okunaka
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
Optical disc and a method of its manufacture
- Publication number 20020150836
- Publication date Oct 17, 2002
- Hiroaki Miwa
- G11 - INFORMATION STORAGE

Ryoichi Sudo

Person

Patents Grantslast 30 patents

Optical disc

Method of manufacturing optical discs

High voltage transformer and ignition transformer using the same

Optical recording and reproduction apparatus

Optical disc

Optical disk producing apparatus

Optical reproduction apparatus

Optical disk producing apparatus

Optical recording and reproduction apparatus

Optical data recording medium

Optical disc

Diacylhydrazine photo-reactive compounds

Insulating coating composition, solderable insulated wires, product...

Method of manufacturing an optical disc

Optical data recording medium and manufacturing method thereof

Method for making a cathode ray tube

Replica plate, process for producing the same and projection type t...

Materials for optical use

Method for producing optical disk base

Optical recording disk

Unsaturated polyester resin composition for cathode ray tube and it...

Optical disc

Optical disc base plate and process for producing the same

Optical disc base plate having a primer layer formed of an ultravio...

Optical disc

Organosilicone homeotropic alignment layer with OH group

Substrate for optical disc recording media

Liquid crystal display device

Composition and process for preparing transparent conducting film

Process for producing transparent electroconductive film

Patents Applicationslast 30 patents

Optical disc and a method of its manufacture