Koji Naraoka

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Sayama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Objective lens drive having optical axis adjustment function
- Patent number 7,266,058
- Issue date Sep 4, 2007
- TEAC Corporation
- Koji Naraoka
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical pickup device with elastic supporters and with dynamic vibr...
- Patent number 7,096,478
- Issue date Aug 22, 2006
- Teac Corporation
- Masami Horita
- G11 - INFORMATION STORAGE
Information Patent Grant
Head loading mechanism of disk apparatus
- Patent number 5,483,504
- Issue date Jan 9, 1996
- Teac Corp.
- Masami Horita
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk apparatus having magnetic head for magneto-optical recording d...
- Patent number 5,455,809
- Issue date Oct 3, 1995
- Teac Corporation
- Koji Naraoka
- G11 - INFORMATION STORAGE
Information Patent Grant
Cleaning apparatus for an object lens
- Patent number 5,321,549
- Issue date Jun 14, 1994
- TEAC Corporation
- Koji Naraoka
- B08 - CLEANING

Patents Applicationslast 30 patents

Information Patent Application
Objective lens drive having optical axis adjustment function
- Publication number 20040081039
- Publication date Apr 29, 2004
- TEAC CORPORATION.
- Koji Naraoka
- G11 - INFORMATION STORAGE
Information Patent Application
Optical pickup device
- Publication number 20020141323
- Publication date Oct 3, 2002
- Masami Horita
- G11 - INFORMATION STORAGE