HS

Hitoshi Sugiyama

Schlumberger Technology: 2 patents #28 of 323Top 9%
📍 Anjo, JP: #20 of 131 inventorsTop 20%
Overall (2002): #62,159 of 266,432Top 25%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6494288 Acoustic logging tool Hitoshi Tashiro, Jahir Pabon, Frank J. Morris, David C. Hoyle, David Leslie +1 more 2002-12-17
6474439 Dipole logging tool David C. Hoyle, Hitoshi Tashiro, Benoit Froelich, Alain Brie, Hiroshi Hori +2 more 2002-11-05