Inventor
Mieko Ishii
Inventor
Tsuchiura, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer53%
B82YSpecific uses or applications of nanostructures13%
G03GElectrography13%
F04BPositive-displacement machines for liquids7%
G01QScanning-probe techniques or apparatus7%
H04NPictorial communication, e.g. television7%
PatentTitleYear
7,675,836'Recording/reproducing apparatus with double-sided beam type probe'20107,483,362'Recording/reproducing apparatus'20097,385,786'Magnetic head slider and a magnetic disk device in which the slider is mounted'20087,072,146'Magnetic head slider and a magnetic disk device in which the slider is mounted'20066,993,275'Image position detecting method'20066,985,334'Magnetic head slider and a magnetic disk device in which the slider is mounted'20066,870,638'Halftone processing apparatus using distributing PWM method'20056,597,537'Magnetic head slider and a magnetic disk device in which the slider is mounted'20036,539,188'Liquid developing device, method of it\'s maintenance and the method of recovery of supplemental fluid from the liquid developing device'20036,452,751'Magnetic head slider and a magnetic disk device in which the slider is mounted'20026,373,661'Magnetic head slider and a magnetic disk device in which the slider is mounted'20024,808,077'Pulsationless duplex plunger pump and control method thereof'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2010Patents assigned to HITACHI LTD (10)· patent assignee history
1989Based in Shimoinayoshi, JP· patent location history
2002–2010Based in Tsuchiura, JP· patent location history
2006–2008Patents assigned to HITACHI GLOBAL STORAGE TECH (2)· patent assignee history
2006Patents assigned to RICOH PRINTING SYS LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 10 | 1989–2010 |
| HITACHI GLOBAL STORAGE TECH | 2 | 2006–2008 |
| RICOH PRINTING SYS LTD | 1 | 2006 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tsuchiura, JP | 11 | 2002–2010 |
| Shimoinayoshi, JP | 1 | 1989 |