Akio Makuta

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor laser device and its manufacturing method
- Patent number 7,221,692
- Issue date May 22, 2007
- Kabushiki Kaisha Toshiba
- Akira Tanaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Laser element
- Patent number 5,392,311
- Issue date Feb 21, 1995
- Kabushiki Kaisha Toshiba
- Akio Makuta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High power distributed feedback semiconductor laser excellent in li...
- Patent number 5,353,298
- Issue date Oct 4, 1994
- Kabushiki Kaisha Toshiba
- Akio Makuta
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing phase-shifted diffraction grating
- Patent number 5,221,429
- Issue date Jun 22, 1993
- Kabushiki Kaisha Toshiba
- Akio Makuta
- G02 - OPTICS
Information Patent Grant
Laser device and method of manufacturing the same
- Patent number 5,212,712
- Issue date May 18, 1993
- Kabushiki Kaisha Toshiba
- Akio Makuta
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Semiconductor laser device and its manufacturing method
- Publication number 20050030997
- Publication date Feb 10, 2005
- Akira Tanaka
- B82 - NANO-TECHNOLOGY