Inventor
Teruhiko Hagiwara
Inventor
Houston, TX, US
Overview
Patents· 31 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Vprimary
G01VGeophysics64%
E21BEarth or rock drilling14%
G01NInvestigating or analysing materials by determining their chemical or physical properties9%
G01RMeasuring electric variables7%
G06FElectric digital data processing2%
H01JElectric discharge tubes or discharge lamps2%
LOC122%
PatentTitleYear
10,928,541Logging tool with magnetic source and electric dipole sensor for forward and lateral imaging202110,774,636Anisotropy and dip angle determination using electromagnetic (EM) impulses from tilted antennas202010,557,961Logging tool with electric dipole source and magnetic sensor for forward and lateral imaging202010,161,245Anisotropy and dip angle determination using electromagnetic (EM) impulses from tilted antennas20189,482,777'Transient electromagnetic tool mounted on reduced conductivity tubular'20169,482,776'Interferometric processing to detect subterranean geological boundaries'20167,746,076'Method for imaging subterranean formations'2010D0610974'Tread portion of an automobile tire'20107,609,065'System and method for locating an anomaly'20097,557,581'Method for imaging subterranean formations'20097,538,555'System and method for locating an anomaly ahead of a drill bit'20097,425,830'System and method for locating an anomaly'20087,425,831'System and method for locating an anomaly'20087,414,406'System and method for locating an anomaly'20087,135,862'NMR logging using time-domain averaging'20066,760,666'Method for determining anisotropic resistivity and dip angle in an earth formation'20046,584,407'Formation resistivity measurement method that eliminates effects of lateral tool motion'20036,366,088'Method to enhance vertical resolution of time-decay log using forward modeling deconvolution of time-decay spectra'20026,337,568'System and method for enhanced vertical resolution magnetic resonance imaging logs'20026,255,819'System and method for geologically-enhanced magnetic resonance imaging logs'20016,253,155'Enhanced vertical resolution for logging tools using walsh-transform deconvolution'20016,216,090'Interferometric processing method to identify bed boundaries'20016,211,678'Method for radial profiling of resistivity at multiple depths of investigation'20016,181,138'Directional resistivity measurements for azimuthal proximity detection of bed boundaries'20015,966,013'Determination of horizontal resistivity of formations utilizing induction-type logging measurements in deviated borehole'19995,753,813'Apparatus and method for monitoring formation compaction with improved accuracy'19985,656,930'Method for determining the anisotropic properties of a subterranean formation consisting of a thinly laminated sand/shale sequence using an induction type logging tool'19975,468,452'Quantitative analysis combining high performance liquid chromatograph and mass spectrometer'19954,739,255'Method for analyzing thinly bedded sand/shale formations'19884,626,785'Focused very high frequency induction logging'19864,529,938'High frequency induction method for locating the interface between formations having the same resistivity'1985Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–2010Patents assigned to SHELL OIL CO (11)· patent assignee history
1985–2021Based in Houston, TX, US· patent location history
1995Based in Tanashi, JP· patent location history
1998–2006Patents assigned to HALLIBURTON ENERGY SERV INC (10)· patent assignee history
2010Based in Tokyo, JP· patent location history
2016–2021Patents assigned to ARAMCO SERVICES CO (3)· patent assignee history
2016Patents assigned to BAKER HUGHES INC (1)· patent assignee history
2018–2021Patents assigned to SAUDI ARABIAN OIL CO (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SHELL OIL CO | 11 | 1985–2010 |
| HALLIBURTON ENERGY SERV INC | 10 | 1998–2006 |
| SAUDI ARABIAN OIL CO | 4 | 2018–2021 |
| ARAMCO SERVICES CO | 3 | 2016–2021 |
| BAKER HUGHES INC | 1 | 2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 29 | 1985–2021 |
| Tokyo, JP | 1 | 2010 |
| Tanashi, JP | 1 | 1995 |