Hiroshi Nakajima

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Sugar Land, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Ultrasonic acoustic sensors for measuring formation velocities
- Patent number 11,921,249
- Issue date Mar 5, 2024
- Schlumberger Technology Corporation
- Hiroshi Hori
- E21 - EARTH DRILLING MINING
Information Patent Grant
Logging while drilling (LWD) mechanical calipers
- Patent number 11,536,130
- Issue date Dec 27, 2022
- Schlumberger Technology Corporation
- Hiroshi Nakajima
- E21 - EARTH DRILLING MINING
Information Patent Grant
Ultrasonic transducers for measuring formation velocities
- Patent number 11,493,657
- Issue date Nov 8, 2022
- Schlumberger Technology Corporation
- Hiroshi Nakajima
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS FOR SIMULTANEOUS LOGGING FOR MULTIPOLE SONIC AND ACOUSTIC...
- Publication number 20210231821
- Publication date Jul 29, 2021
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Toshihiro Kinoshita
- G01 - MEASURING TESTING
Information Patent Application
ULTRASONIC ACOUSTIC SENSORS FOR MEASURING FORMATION VELOCITIES
- Publication number 20210055444
- Publication date Feb 25, 2021
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Hiroshi Hori
- E21 - EARTH DRILLING MINING
Information Patent Application
ULTRASONIC TRANSDUCERS FOR MEASURING FORMATION VELOCITIES
- Publication number 20200363550
- Publication date Nov 19, 2020
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Hiroshi Nakajima
- G01 - MEASURING TESTING
Information Patent Application
LOGGING WHILE DRILLING (LWD) MECHANICAL CALIPERS
- Publication number 20190376381
- Publication date Dec 12, 2019
- SCHLUMBERGER TECHNOLOGY CORPORATION
- Hiroshi Nakajima
- E21 - EARTH DRILLING MINING