Tohru Ohara

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic disk substrate
- Patent number 5,874,376
- Issue date Feb 23, 1999
- Yamamura Glass Co., Ltd.
- Tomoyuki Taguchi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass-ceramic magnetic disk substrate
- Patent number 5,726,108
- Issue date Mar 10, 1998
- Yamamura Glass Co., Ltd.
- Tomoyuki Taguchi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass composition for magnetic disk substrates and magnetic disk su...
- Patent number 5,691,256
- Issue date Nov 25, 1997
- Yamamura Glass Co., Ltd.
- Tomoyuki Taguchi
- C03 - GLASS MINERAL OR SLAG WOOL