Toshikazu Igi

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Mobara-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Long casing patch method
- Patent number 9,481,156
- Issue date Nov 1, 2016
- KANTO NATURAL GAS DEVELOPMENT CO., LTD.
- Toshikazu Igi
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF SUPPLYING CEMENT SLURRY AND METHOD OF DRILLING OR CEMENTI...
- Publication number 20220316287
- Publication date Oct 6, 2022
- KANTO NATURAL GAS DEVELOPMENT CO., LTD.
- Masato YOSHIOKA
- E21 - EARTH DRILLING MINING
Information Patent Application
LONG CASING PATCH METHOD
- Publication number 20150352823
- Publication date Dec 10, 2015
- KANTO NATURAL GAS DEVELOPMENT CO., LTD.
- Toshikazu Igi
- B32 - LAYERED PRODUCTS