Akiji Yamaguchi

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Patents Grantslast 30 patents

Information Patent Grant
Area monitoring sensor
- Patent number 8,248,235
- Issue date Aug 21, 2012
- Keyence Corporation
- Tetsu Inoue
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Photoelectric sensor for securing the safety of a work area
- Patent number 7,598,484
- Issue date Oct 6, 2009
- Keyence Corporation
- Akiji Yamaguchi
- G01 - MEASURING TESTING
Information Patent Grant
Photoelectric sensor
- Patent number 7,098,441
- Issue date Aug 29, 2006
- Keyence Corporation
- Akiji Yamaguchi
- G01 - MEASURING TESTING
Information Patent Grant
Method for displaying state of multi-optical-axis photoswitch and m...
- Patent number 6,414,603
- Issue date Jul 2, 2002
- Keyence Corporation
- Akiji Yamaguchi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method of verifying an extension area sensor controlled, master con...
- Patent number 6,204,575
- Issue date Mar 20, 2001
- Keyence Corporation
- Akiji Yamaguchi
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Area Monitoring Sensor
- Publication number 20090295580
- Publication date Dec 3, 2009
- KEYENCE CORPORATION
- Tetsu Inoue
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
Area Monitoring Sensor
- Publication number 20090295577
- Publication date Dec 3, 2009
- KEYENCE CORPORATION
- Akiji Yamaguchi
- G08 - SIGNALLING
Information Patent Application
Photoelectric Sensor
- Publication number 20080296474
- Publication date Dec 4, 2008
- KEYENCE CORPORATION
- Akiji Yamaguchi
- G01 - MEASURING TESTING
Information Patent Application
Photoelectric sensor
- Publication number 20050082465
- Publication date Apr 21, 2005
- Akiji Yamaguchi
- G01 - MEASURING TESTING