Haruki OKUYAMA

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber
- Patent number 11,927,798
- Issue date Mar 12, 2024
- Sumitomo Electric Industries, Ltd.
- Noriaki Iwaguchi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method for manufacturing optical fiber
- Patent number 11,465,317
- Issue date Oct 11, 2022
- Sumitomo Electric Industries, Ltd.
- Noriaki Iwaguchi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for manufacturing optical fiber with oxygen-strengthened UV-...
- Patent number 11,428,866
- Issue date Aug 30, 2022
- Sumitomo Electric Industries, Ltd.
- Noriaki Iwaguchi
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL FIBER
- Publication number 20210181411
- Publication date Jun 17, 2021
- Sumitomo Electric Industries, Ltd.
- Noriaki IWAGUCHI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
METHOD FOR MANUFACTURING OPTICAL FIBER
- Publication number 20200103589
- Publication date Apr 2, 2020
- Sumitomo Electric Industries, Ltd.
- Noriaki IWAGUCHI
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
METHOD FOR MANUFACTURING OPTICAL FIBER
- Publication number 20200047378
- Publication date Feb 13, 2020
- Sumitomo Electric Industries, Ltd.
- Noriaki IWAGUCHI
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL