Takeshi Akamatsu

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Shiga, JP

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Patents Grantslast 30 patents

Information Patent Grant
Small-diameter deep hole drill and a micro deep hole drilling method
- Patent number 7,909,549
- Issue date Mar 22, 2011
- Hitachi Tool Engineering, Ltd.
- Yoshihiro Kondoh
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
SMALL-DIAMETER DEEP HOLE DRILL AND A MICRO DEEP HOLE DRILLING METHOD
- Publication number 20100178121
- Publication date Jul 15, 2010
- Hatachi Tool Engineering, Ltd.
- Yoshihiro Kondoh
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR