Masaharu Yokoyama

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Niigata-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic head having head element protected from electrostatic dama...
- Patent number 6,667,854
- Issue date Dec 23, 2003
- Alps Electric Co., Ltd.
- Toshihiko Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Exposure mask and exposure method using the same
- Patent number 6,638,670
- Issue date Oct 28, 2003
- Alps Electric Co., Ltd.
- Toshihiko Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Pattern forming method
- Patent number 6,258,515
- Issue date Jul 10, 2001
- Alps Electric Co., Ltd.
- Toshihiko Sato
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Magnetic head having head element protected from electrostatic dama...
- Publication number 20030123190
- Publication date Jul 3, 2003
- Alps Electric Co., Ltd.
- Toshihiko Sato
- G11 - INFORMATION STORAGE