Tsutomu Ota

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Suwa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Laser machining method for precision machining
- Patent number 6,635,850
- Issue date Oct 21, 2003
- Seiko Epson Corporation
- Jun Amako
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Laser machining apparatus with a rotatable phase grating
- Patent number 6,376,799
- Issue date Apr 23, 2002
- Seiko Epson Corporation
- Jun Amako
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Laser machining apparatus with rotatable phase grating
- Patent number 6,031,201
- Issue date Feb 29, 2000
- Seiko Epson Corporation
- Jun Amako
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Information recording disk having a stepped central recess and hub...
- Patent number 5,504,735
- Issue date Apr 2, 1996
- Seiko Epson Corporation
- Tsutomu Ota
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording disk
- Patent number 5,265,086
- Issue date Nov 23, 1993
- Seiko Epson Corporation
- Tsutomu Ota
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Laser machining apparatus, laser machining method, and liquid cryst...
- Publication number 20020139786
- Publication date Oct 3, 2002
- Jun Amako
- G02 - OPTICS