Manabu Ohhori

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Corrective tempering apparatus for rolling elements
- Patent number 6,248,287
- Issue date Jun 19, 2001
- NSK Ltd.
- Kiyoshi Hirakawa
- C21 - METALLURGY OF IRON
Information Patent Grant
Corrective tempering method for rolling elements
- Patent number 6,093,268
- Issue date Jul 25, 2000
- NSK Ltd.
- Kiyoshi Hirakawa
- C21 - METALLURGY OF IRON