Masahiko Sakamoto

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Code disk with a plurality of tracks having different patterns
- Patent number 7,907,505
- Issue date Mar 15, 2011
- Mitsubishi Denki Kabushiki Kaisha
- Masahiko Sakamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Code disk with a plurality of tracks having different patterns
- Patent number 7,612,331
- Issue date Nov 3, 2009
- Mitsubishi Denki Kabushiki Kaisha
- Masahiko Sakamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical encoder having a no track portion of an optical scale being...
- Patent number 7,538,313
- Issue date May 26, 2009
- Mitsubishi Denki Kabushiki Kaisha
- Toru Oka
- G01 - MEASURING TESTING
Information Patent Grant
Optical encoder with reduced reflected light error having a light n...
- Patent number 7,285,769
- Issue date Oct 23, 2007
- Mitsubishi Denki Kabushiki Kaisha
- Toru Oka
- G01 - MEASURING TESTING
Information Patent Grant
Code disk with a plurality of tracks having different patterns
- Patent number 7,193,962
- Issue date Mar 20, 2007
- Mitsubishi Denki Kabushiki Kaisha
- Masahiko Sakamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Photoelectric rotary encoder
- Patent number 6,972,402
- Issue date Dec 6, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Yoichi Ohmura
- G01 - MEASURING TESTING
Information Patent Grant
Laser machining device
- Patent number 6,875,951
- Issue date Apr 5, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Masahiko Sakamoto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Laser inspection apparatus
- Patent number 6,690,024
- Issue date Feb 10, 2004
- Mitsubishi Denki Kabushiki Kaisha
- Koji Funaoka
- G01 - MEASURING TESTING
Information Patent Grant
Code reading pattern and an image pickup apparatus for reading the...
- Patent number 5,481,095
- Issue date Jan 2, 1996
- Mitsubishi Denki Kabushiki Kaisha
- Hiroshi Mitsuda
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electron-beam exposure apparatus
- Patent number 4,879,473
- Issue date Nov 7, 1989
- Mitsubishi Denki Kabushiki Kaisha
- Nobuyuki Zumoto
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method and apparatus for detecting and regulating position of weldi...
- Patent number 4,654,506
- Issue date Mar 31, 1987
- Mitsubishi Denki Kabushiki Kaisha
- Masahiko Sakamoto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
CODE DISK WITH A PLURALITY OF TRACKS HAVING DIFFERENT PATTERNS
- Publication number 20100009072
- Publication date Jan 14, 2010
- Mitsubishi Denki Kabushiki Kaisha
- Masahiko Sakamoto
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL ENCODER
- Publication number 20080277569
- Publication date Nov 13, 2008
- Mitsubishi Denki Kabushiki Kaisha
- Toru Oka
- G01 - MEASURING TESTING
Information Patent Application
Code disk with a plurality of tracks having different patterns
- Publication number 20070147222
- Publication date Jun 28, 2007
- Mitsubishi Denki Kabushiki Kaiska
- Masahiko Sakamoto
- G01 - MEASURING TESTING
Information Patent Application
Optical encoder
- Publication number 20070034786
- Publication date Feb 15, 2007
- Mitsubishi Denki Kabushiki Kaisha
- Toru Oka
- G01 - MEASURING TESTING
Information Patent Application
Photoelectric rotary encoder
- Publication number 20040004181
- Publication date Jan 8, 2004
- Mitsubishi Denki Kabushiki Kaisha
- Yoichi Ohmura
- G01 - MEASURING TESTING
Information Patent Application
Code disk with a plurality of tracks having different patterns
- Publication number 20030137908
- Publication date Jul 24, 2003
- Masahiko Sakamoto
- G01 - MEASURING TESTING
Information Patent Application
Laser machining apparatus
- Publication number 20020153361
- Publication date Oct 24, 2002
- Masahiko Sakamoto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Masahiko Sakamoto

Person

Patents Grantslast 30 patents

Code disk with a plurality of tracks having different patterns

Code disk with a plurality of tracks having different patterns

Optical encoder having a no track portion of an optical scale being...

Optical encoder with reduced reflected light error having a light n...

Code disk with a plurality of tracks having different patterns

Photoelectric rotary encoder

Laser machining device

Laser inspection apparatus

Code reading pattern and an image pickup apparatus for reading the...

Electron-beam exposure apparatus

Method and apparatus for detecting and regulating position of weldi...

Patents Applicationslast 30 patents

CODE DISK WITH A PLURALITY OF TRACKS HAVING DIFFERENT PATTERNS

OPTICAL ENCODER

Code disk with a plurality of tracks having different patterns

Optical encoder

Photoelectric rotary encoder

Code disk with a plurality of tracks having different patterns

Laser machining apparatus