Seiro Fujii

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for manufacturing a substrate means for an optical record...
- Patent number 5,417,182
- Issue date May 23, 1995
- Pioneer Electronic Corporation
- Seiro Fujii
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording disc
- Patent number 5,360,652
- Issue date Nov 1, 1994
- Pioneer Electronic Corporation
- Takahiro Kobayashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacturing method of substrate means for optical recording disk...
- Patent number 5,292,550
- Issue date Mar 8, 1994
- Pioneer Electronic Corporation
- Seiro Fujii
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording disk and manufacturing method thereof
- Patent number 5,217,850
- Issue date Jun 8, 1993
- Pioneer Electronic Corporation
- Seiro Fujii
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of making magneto-optical recording disk
- Patent number 5,087,340
- Issue date Feb 11, 1992
- Pioneer Electronic Corporation
- Nobuaki Onagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical-magnetic recording medium
- Patent number 4,775,603
- Issue date Oct 4, 1988
- Pioneer Electronic Corporation
- Seiro Fujii
- G11 - INFORMATION STORAGE