Yoshifumi Tsukada

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Tokorozawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Disc player with objective lens arranged in a zigzag pattern
- Patent number 6,262,964
- Issue date Jul 17, 2001
- Pioneer Electronic Corporation
- Hiroshi Yokota
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc player with parallel objective lenses
- Patent number 5,848,049
- Issue date Dec 8, 1998
- Pioneer Electronic Corporation
- Hiroshi Yokota
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc player
- Patent number 5,677,904
- Issue date Oct 14, 1997
- Pioneer Electronic Corporation
- Hiroshi Yokota
- G11 - INFORMATION STORAGE
Information Patent Grant
Pulling-in circuit for PLL circuit, pulling-in method for PLL circu...
- Patent number 5,671,201
- Issue date Sep 23, 1997
- Pioneer Electronic Corporation
- Hiroshi Yokota
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for reproducing information recorded on CLV di...
- Patent number 5,646,921
- Issue date Jul 8, 1997
- Pioneer Electronic Corporation
- Hiroshi Yokota
- G11 - INFORMATION STORAGE
Information Patent Grant
Pulling-in circuit for PLL circuit, pulling-in method for PLL circu...
- Patent number 5,619,484
- Issue date Apr 8, 1997
- Pioneer Electronic Corporation
- Hiroshi Yokota
- G11 - INFORMATION STORAGE