Naotoshi Iwazawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Radial tilt compensating optical disk apparatus using tracking cont...
- Patent number 7,327,643
- Issue date Feb 5, 2008
- NEC Corporation
- Naotoshi Iwazawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Positioning control apparatus and method capable of reducing relati...
- Patent number 7,136,339
- Issue date Nov 14, 2006
- NEC Corporation
- Masashi Kubota
- G11 - INFORMATION STORAGE
Information Patent Grant
Turntable device for an optical disk
- Patent number 6,072,767
- Issue date Jun 6, 2000
- NEC Corporation
- Naotoshi Iwazawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk supporting device capable of holding a disk in a cartridge wit...
- Patent number 5,995,482
- Issue date Nov 30, 1999
- NEC Corporation
- Naotoshi Iwazawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Stepping motor drive apparatus and stepping motor
- Patent number 5,990,651
- Issue date Nov 23, 1999
- NEC Corporation
- Naotoshi Iwazawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of controlling a printhead carriage velocity of a serial pri...
- Patent number 5,547,296
- Issue date Aug 20, 1996
- NEC Corporation
- Naotoshi Iwazawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
Optical disk drive having a tilt compensator
- Publication number 20030179665
- Publication date Sep 25, 2003
- NEC Corporation
- Naotoshi Iwazawa
- G11 - INFORMATION STORAGE
Information Patent Application
Radial tilt compensating optical disk apparatus using tracking cont...
- Publication number 20030147315
- Publication date Aug 7, 2003
- NEC Corporation
- Naotoshi Iwazawa
- G11 - INFORMATION STORAGE
Information Patent Application
Positioning control apparatus and method capable of reducing relati...
- Publication number 20030053243
- Publication date Mar 20, 2003
- NEC Corporation
- Masashi Kubota
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk device and method capable of adjusting a tilt of an ob...
- Publication number 20020001262
- Publication date Jan 3, 2002
- Naotoshi Iwazawa
- G11 - INFORMATION STORAGE