Inventor
Hideyuki Kamei
Inventor
Yokohama, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling20%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry13%
C07CAcyclic or carbocyclic compounds13%
G01CMeasuring distances, levels or bearings7%
G01DMeasuring not specially adapted for a specific variable7%
H01LSemiconductor devices7%
H02NElectric machines not otherwise provided for7%
H03BGeneration of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner7%
H03HImpedance networks, e.g. resonant circuits7%
H03LAutomatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses7%
PatentTitleYear
9,083,263'Apparatus to provide a time reference'20158,534,115'Systems and methods of determining parameter values in a downhole environment'20138,061,047'Active positioning of downhole devices using spherical motors'20116,624,325'Catalyst for use in producing lower fatty acid ester, process for producing the catalyst, and process for producing lower fatty acid ester using the catalyst'20035,011,980'Process for preparation of allyl acetate'1991Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1991–2003Patents assigned to SHOWA DENKO KK (2)· patent assignee history
1991–2003Based in Oita, JP· patent location history
2011–2015Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (3)· patent assignee history
2011–2013Patents assigned to KAMEI HIDEYUKI (2)· patent assignee history
2011Patents assigned to CHO BRIAN W (1)· patent assignee history
2011–2015Based in Yokohama, JP· patent location history
2013Patents assigned to HORI MARTINE (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SCHLUMBERGER TECHNOLOGY CORP | 3 | 2011–2015 |
| KAMEI HIDEYUKIself | 2 | 2011–2013 |
| SHOWA DENKO KK | 2 | 1991–2003 |
| CHO BRIAN W | 1 | 2011 |
| HORI MARTINE | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 3 | 2011–2015 |
| Oita, JP | 2 | 1991–2003 |