Masaharu Sugiyama

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Chiba-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
End face polishing device
- Patent number 6,830,501
- Issue date Dec 14, 2004
- Seiko Instruments, Inc.
- Kouji Minami
- B24 - GRINDING POLISHING
Information Patent Grant
Multistage fine hole machining method and device
- Patent number 6,817,925
- Issue date Nov 16, 2004
- Seiko Instruments Inc.
- Tatsuji Saigo
- B24 - GRINDING POLISHING
Information Patent Grant
Polishing device, end face polishing apparatus having polishing dev...
- Patent number 6,439,973
- Issue date Aug 27, 2002
- Seiko Instruments Inc.
- Mari Kato
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Polishing device, end face polishing apparatus having polishing dev...
- Patent number 6,302,773
- Issue date Oct 16, 2001
- Seiko Instruments Inc.
- Mari Kato
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
End face polishing apparatus and method for polishing end face of f...
- Patent number 6,280,293
- Issue date Aug 28, 2001
- Seiko Instruments Inc.
- Kouji Minami
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
End face polishing device
- Publication number 20030148713
- Publication date Aug 7, 2003
- Kouji Minami
- B24 - GRINDING POLISHING
Information Patent Application
Multistage fine hole machining method and device
- Publication number 20030045209
- Publication date Mar 6, 2003
- Tatsuji Saigo
- B24 - GRINDING POLISHING
Information Patent Application
End face polishing apparatus
- Publication number 20010041512
- Publication date Nov 15, 2001
- Mari Kato
- B24 - GRINDING POLISHING