Toshikazu Nagaura

Person

Nara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical disc
- Patent number 6,067,285
- Issue date May 23, 2000
- Sharp Kabushiki Kaisha
- Kenji Ohta
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacturing method of magneto-optical master disk
- Patent number 5,820,795
- Issue date Oct 13, 1998
- Sharp Kabushiki Kaisha
- Hirotoshi Takemori
- G11 - INFORMATION STORAGE
Information Patent Grant
Cartridge used for a disc-shaped recording medium
- Patent number 5,587,994
- Issue date Dec 24, 1996
- Sharp Kabushiki Kaisha
- Toshikazu Nagaura
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk with grooves and pits of different depths
- Patent number 5,500,850
- Issue date Mar 19, 1996
- Sharp Kabushiki Kaisha
- Kazuo Van
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk
- Patent number 5,490,131
- Issue date Feb 6, 1996
- Sharp Kabushiki Kaisha
- Kenji Ohta
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc with surface coating and manufacturing method therefor
- Patent number 5,453,975
- Issue date Sep 26, 1995
- Sharp Kabushiki Kaisha
- Kenji Ohta
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk for use in optical memory devices
- Patent number 5,399,461
- Issue date Mar 21, 1995
- Sharp Kabushiki Kaisha
- Kazuo Van
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc with antistatic coating containing tin oxide and phosp...
- Patent number 5,331,625
- Issue date Jul 19, 1994
- Sharp Kabushiki Kaisha
- Michinobu Mieda
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Integrated unit and optical pickup
- Publication number 20010024415
- Publication date Sep 27, 2001
- Hirotoshi Takemori
- G11 - INFORMATION STORAGE

Toshikazu Nagaura

Person

Patents Grantslast 30 patents

Optical disc

Manufacturing method of magneto-optical master disk

Cartridge used for a disc-shaped recording medium

Optical disk with grooves and pits of different depths

Optical disk

Optical disc with surface coating and manufacturing method therefor

Optical disk for use in optical memory devices

Optical disc with antistatic coating containing tin oxide and phosp...

Patents Applicationslast 30 patents

Integrated unit and optical pickup