Inventor
Haruaki Otsuki
Inventor
Tsuchiura, JP
Overview
Patents· 11 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 transducer27%
B23KSoldering or unsoldering20%
G02BOptical elements, systems or apparatus20%
H05KPrinted circuits13%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables7%
G05BControl or regulating systems in general7%
H02KDynamo-electric machines7%
PatentTitleYear
10,350,704Laser processing method and laser processing apparatus20198,717,714'Magnetic head positioning and driving device including heaters and diodes'20147,612,479'Scanner for equalizing torque constant and reducing torque constant variation'20097,432,681'Scanner system'20087,270,270'Optical scanner control method, optical scanner and laser machining apparatus'20077,023,598'Optical scanner and laser machining apparatus'20065,402,400'Method and apparatus for eliminating external disturbances in a disk drive device'19955,229,896'Disk drive and method of controlling the same'19935,189,578'Disk system with sub-actuators for fine head displacement'19934,430,606'Sheet feeding apparatus'19844,418,305'Velocity feedback circuit'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–2014Patents assigned to HITACHI LTD (6)· patent assignee history
1993–1995Based in Toride, JP· patent location history
2006–2009Patents assigned to HITACHI VIA MECHANICS LTD (4)· patent assignee history
2006–2008Based in Tsuchiura, JP· patent location history
2009Based in Hitachinaka, JP· patent location history
2014Patents assigned to OTSUKI HARUAKI (1)· patent assignee history
2014Based in Tokyo, JP· patent location history
2019Patents assigned to VIA MECHANICS LTD (1)· patent assignee history
2019Based in Hiatchinaka, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 6 | 1983–2014 |
| HITACHI VIA MECHANICS LTD | 4 | 2006–2009 |
| OTSUKI HARUAKIself | 1 | 2014 |
| VIA MECHANICS LTD | 1 | 2019 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tsuchiura, JP | 3 | 2006–2008 |
| Toride, JP | 3 | 1993–1995 |
| Hiatchinaka, JP | 1 | 2019 |
| Tokyo, JP | 1 | 2014 |
| Hitachinaka, JP | 1 | 2009 |