Masaaki Motokawa

Person

Yamanashi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of producing an optical video disc
- Patent number 6,527,904
- Issue date Mar 4, 2003
- Pioneer Electronic Corporation
- Haruhisa Maruyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for manufacturing optical disks
- Patent number 6,312,547
- Issue date Nov 6, 2001
- Pioneer Corporation
- Jiro Fujimori
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of producing optical disc of bonded type
- Patent number 6,136,133
- Issue date Oct 24, 2000
- Pioneer Electronic Corporation
- Haruhisa Maruyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method of producing an optical video disc
- Patent number 6,132,545
- Issue date Oct 17, 2000
- Pioneer Electronic Corporation
- Masaaki Motokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc substrate used for an optical disc and a molding die for moldi...
- Patent number 5,827,593
- Issue date Oct 27, 1998
- Pioneer Electronic Corporation
- Haruhisa Maruyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Laminated optical discs
- Patent number 5,820,961
- Issue date Oct 13, 1998
- Pioneer Electronic Corporation
- Haruhisa Maruyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Process of reproducing optical discs and optical discs produced by...
- Patent number 5,759,332
- Issue date Jun 2, 1998
- Pioneer Electronic Corporation
- Masahide Itoigawa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Masaaki Motokawa

Person

Patents Grantslast 30 patents

Method of producing an optical video disc

Method for manufacturing optical disks

Method of producing optical disc of bonded type

Method of producing an optical video disc

Disc substrate used for an optical disc and a molding die for moldi...

Laminated optical discs

Process of reproducing optical discs and optical discs produced by...