Yoshio Hata

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Disk cartridge with judging recesses
- Patent number 5,923,509
- Issue date Jul 13, 1999
- Matsushita Electric Industrial Co., Ltd.
- Yuji Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk cartridge with positioning hole
- Patent number 5,907,535
- Issue date May 25, 1999
- Matsushita Electric Industrial Co., Ltd.
- Yuji Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Tray with positioning protrusion for loading a disk cartridge
- Patent number 5,901,129
- Issue date May 4, 1999
- Matsushita Electric Industrial Co., Ltd.
- Yuji Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk cartridge with an inclined groove
- Patent number 5,799,009
- Issue date Aug 25, 1998
- Matsushita Electric Industrial Co., Ltd.
- Yuji Takahashi
- G11 - INFORMATION STORAGE