Takahiro Yokoyama

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Continuous drilling system
- Patent number 11,454,075
- Issue date Sep 27, 2022
- Japan Agency for Marine-Earth Science and Technology
- Tomokazu Saruhashi
- E21 - EARTH DRILLING MINING
Information Patent Grant
Submarine drilling support system
- Patent number 11,225,844
- Issue date Jan 18, 2022
- Japan Agency for Marine-Earth Science and Technology
- Tomokazu Saruhashi
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
CONTINUOUS DRILLING SYSTEM
- Publication number 20200340318
- Publication date Oct 29, 2020
- Tomokazu Saruhashi
- E21 - EARTH DRILLING MINING
Information Patent Application
Submarine drilling support system
- Publication number 20180238122
- Publication date Aug 23, 2018
- Japan Agency for Marine-Earth Science and Technology
- Tomokazu Saruhashi
- E21 - EARTH DRILLING MINING