Inventor
Katsuhiko Sakai
Inventor
Tokyo, JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps50%
G06FElectric digital data processing11%
H03KPulse technique11%
B41JTypewriters6%
C07CAcyclic or carbocyclic compounds6%
C22BProduction and refining of metals6%
H10HInorganic light-emitting semiconductor devices having potential barriers6%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h106%
PatentTitleYear
8,030,614'Charged particle beam apparatus and dimension measuring method'20117,973,282'Charged particle beam apparatus and dimension measuring method'20117,679,411'Reset signal generation circuit'20107,449,926'Circuit for asynchronously resetting synchronous circuit'20087,214,936'Charged particle beam apparatus and dimension measuring method'20076,858,059'Electron beam melting method for metallic material'20056,252,351'Light emitting diode array'20016,043,490'Vibration cancellation system for a charged particle beam apparatus'20005,907,053'Method for preparing acrylonitrile'19995,668,368'Apparatus for suppressing electrification of sample in charged beam irradiation apparatus'19975,576,538'Apparatus and method for ion beam neutralization'19965,466,929'Apparatus and method for suppressing electrification of sample in charged beam irradiation apparatus'19955,126,571'Semiconductor manufacturing apparatus'19924,939,360'Particle beam irradiating apparatus having charge suppressing device which applies a bias voltage between a change suppressing particle beam source and the specimen'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–2000Patents assigned to HITACHI LTD (5)· patent assignee history
1995–1997Based in Mito, JP· patent location history
2001–2008Patents assigned to FUJITSU LTD (2)· patent assignee history
2001Patents assigned to HITACHI CABLE (1)· patent assignee history
2001Based in Ibaraki, JP· patent location history
2005Based in Chigasaki, JP· patent location history
2007–2011Patents assigned to HITACHI HIGH TECH CORP (3)· patent assignee history
2007–2011Based in Tokyo, JP· patent location history
2008–2010Based in Kasugai, JP· patent location history
2010Patents assigned to FUJITSU MICROELECTRONICS LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 5 | 1990–2000 |
| HITACHI HIGH TECH CORP | 3 | 2007–2011 |
| FUJITSU LTD | 2 | 2001–2008 |
| FUJITSU MICROELECTRONICS LTD | 1 | 2010 |
| HITACHI CABLE | 1 | 2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 3 | 2007–2011 |
| Mito, JP | 3 | 1995–1997 |
| Kasugai, JP | 2 | 2008–2010 |
| Chigasaki, JP | 1 | 2005 |
| Ibaraki, JP | 1 | 2001 |