Keigo Fukunaga

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Laser processing apparatus, laser processing method, and method for...
- Patent number 11,389,898
- Issue date Jul 19, 2022
- Mitsubishi Electric Corporation
- Keigo Fukunaga
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Optical semiconductor device and method for manufacturing the same
- Patent number 11,175,520
- Issue date Nov 16, 2021
- Mitsubishi Electric Corporation
- Yuichiro Horiguchi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Drum winding apparatus
- Patent number 6,497,380
- Issue date Dec 24, 2002
- Mitsubishi Denki Kabushiki Kaisha
- Hiroshi Kigawa
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Hoisting winch for lifting and lowering
- Patent number 6,126,143
- Issue date Oct 3, 2000
- Mitsubishi Denki Kabushiki Kaisha
- Keigo Fukunaga
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR MANUFACTURING OPTICAL SEMICONDUCTOR ELEMENT, AND OPTICAL...
- Publication number 20210173236
- Publication date Jun 10, 2021
- MITSUBISHI ELECTRIC CORPORATION
- Keigo FUKUNAGA
- G02 - OPTICS
Information Patent Application
OPTICAL SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME
- Publication number 20200387017
- Publication date Dec 10, 2020
- MITSUBISHI ELECTRIC CORPORATION
- Yuichiro HORIGUCHI
- G02 - OPTICS
Information Patent Application
Laser Processing Apparatus, Laser Processing Method, and Method for...
- Publication number 20200061742
- Publication date Feb 27, 2020
- MITSUBISHI ELECTRIC CORPORATION
- Keigo FUKUNAGA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Drum winding apparatus
- Publication number 20010023905
- Publication date Sep 27, 2001
- Hiroshi Kigawa
- B66 - HOISTING LIFTING HAULING