P

Inventor

SUGIYAMA HITOSHI

JP45 patents
⚠️ This page may combine multiple inventors who share the name “SUGIYAMA HITOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SCHLUMBERGER TECHNOLOGY CORP

13 patents
US7334661B2Feb 26, 2008

Acoustic logging tool sleeve

SCHLUMBERGER TECHNOLOGY CORP32 citations92
US7336562B1Feb 26, 2008

Sonic logging tool including receiver and spacer structure

SCHLUMBERGER TECHNOLOGY CORP24 citations92
US6494288B1Dec 17, 2002

Acoustic logging tool

SCHLUMBERGER TECHNOLOGY CORP25 citations92
US6474439B1Nov 5, 2002

Dipole logging tool

SCHLUMBERGER TECHNOLOGY CORP45 citations92
US7530392B2May 12, 2009

Method and system for development of hydrocarbon bearing formations including depressurization of gas hydrates

SCHLUMBERGER TECHNOLOGY CORP16 citations90
US7216737B2May 15, 2007

Acoustic isolator between downhole transmitters and receivers

SCHLUMBERGER TECHNOLOGY CORP18 citations84
US6739423B2May 25, 2004

Acoustic logging tool

SCHLUMBERGER TECHNOLOGY CORP17 citations83
US7707878B2May 4, 2010

Circulation pump for circulating downhole fluids, and characterization apparatus of downhole fluids

SCHLUMBERGER TECHNOLOGY CORP9 citations81
US10215604B2Feb 26, 2019

Fluid analysis system with densitometer having electrically isolated vibrating tube

SCHLUMBERGER TECHNOLOGY CORP3 citations73
US9927541B2Mar 27, 2018

Apparatus for monopole and multipole sonic logging of a downhole formation

SCHLUMBERGER TECHNOLOGY CORP4 citations67
US9557435B2Jan 31, 2017

Acoustic isolators

SCHLUMBERGER TECHNOLOGY CORP4 citations65
US7886820B2Feb 15, 2011

Method and system for monitoring the incursion of particulate material into a well casing within hydrocarbon bearing formations including gas hydrates

SCHLUMBERGER TECHNOLOGY CORP2 citations60
US9874069B2Jan 23, 2018

Seal assembly

SCHLUMBERGER TECHNOLOGY CORP0 citations39

TOSHIBA KK

8 patents

DENSO CORP

5 patents

SUGIYAMA HITOSHI

5 patents

FUJITSU LTD

2 patents

ONODERA SHUNETSU

2 patents

CHUBA ELECTRIC POWER COMPANY I

1 patent

IGARASHI JUEI

1 patent

MORIKAMI YOKO

1 patent

MITSUBISHI CHEM CORP

1 patent

NISHIKAWA RYOICHI

1 patent

PIONEER ELECTRONIC CORP

1 patent

KAWASAKI MICROELECTRONICS INC

1 patent

MITSUBISHI CHEM IND

1 patent

UEDA YOSHIHIRO

1 patent

MEGACHIPS CORP

1 patent