Inventor
Katsuhiko Tamura
Inventor
Hyogo, JP
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Dprimary
H10DInorganic electric semiconductor devices30%
H10BElectronic memory devices17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1013%
B01DSeparation4%
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids4%
C02FTreatment of water, waste water, sewage, or sludge4%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
5,633,184'Method of making semiconductor device with floating bate'19975,434,813'Semiconductor memory device and manufacturing method of the same'19955,381,032'Semiconductor device having a gate electrode of polycrystal layer and a method of manufacturing thereof'19955,360,756'Method of manufacturing a semiconductor device having a monocrystal silicon layer'19945,338,955'Semiconductor device having stacked type capacitor'19945,221,630'Method of manufacturing semiconductor device having a two layered structure gate electrode'19935,177,569'Semiconductor device having a two layered structure gate electrode'19934,778,584'Liquid filter device'19884,765,963'Apparatus for measuring impurities in water'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1997Patents assigned to MITSUBISHI ELECTRIC CORP (9)· patent assignee history
1988Patents assigned to LIQUID CONCERNED LTD (1)· patent assignee history
1988Patents assigned to ZEOTEC LRC CORP (1)· patent assignee history
1988–1997Based in Hyogo, JP· patent location history
1988Based in Itami, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI ELECTRIC CORP | 9 | 1988–1997 |
| LIQUID CONCERNED LTD | 1 | 1988 |
| ZEOTEC LRC CORP | 1 | 1988 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hyogo, JP | 8 | 1988–1997 |
| Itami, JP | 1 | 1988 |