Inventor
Kouji Fujita
Inventor
Yokohama, JP
Overview
Patents· 35 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 transducer30%
H04NPictorial communication, e.g. television14%
Y10TTechnical subjects covered by former us classification6%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding3%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for3%
C08JWorking-up3%
E02FDredging3%
F16CShafts3%
G06TImage data processing or generation, in general3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
PatentTitleYear
10,650,251Monitoring image display device of industrial machine202010,413,187Optical scanning device, imaging device, and TOF type analyzer201910,270,548Target operation device communicating system, mobile terminal, and target operation device communication cooperating method201910,145,087Surroundings display device for swing working machine20189,190,097'Optical information recording/reproducing device and optical information recording/reproducing method'20158,913,474'Optical information recording/reproducing apparatus'20148,830,809'Optical information recording device'20148,326,122'Recorder/reproducer'20128,234,936'Torque wrench having improved tightening torque measurement value'20128,169,867'Optical disc drive apparatus'20127,967,462'Backlight assembly for liquid crystal display apparatus having inclined light emmitting elements'20117,903,930'Data recording apparatus and system having sustained high transfer rates'20117,832,286'Torque wrench'20107,835,617'Data recording apparatus and system having sustained high transfer rates'20107,763,348'Cellulosic particles, spherical object comprising cross-linked polymer particles, and adsorbent for body fluid purification'20107,693,017'Optical disc device'20107,660,223'Disc device'20107,457,513'Recorder/reproducer'20087,349,623'Data recording apparatus and system having sustained high transfer rates'20087,247,834'Photoelectric sensor for detecting presence/absence of object'20077,211,733'Electric wire, electric wire connection method and wire harness'20076,987,924'Recorder/reproducer'20066,599,620'Cellulosic particles, spherical object comprising cross-linked polymer particles, and adsorbent for body fluid purification'20036,471,150'Threading mechanism for magnetic recording/reproducing apparatus'20025,983,999'Laminated heat exchanger having refrigerant tubes and heads'19995,808,824'Tape feed control system'19985,785,152'Lubricant-containing end cap for a bicycle control cable'19985,636,709'Lubricant-containing end cap for a bicycle control cable'19975,521,769'Magnetic tape drive with displaceable head capable of a re-try operation'19965,500,775'Data recording and reproducing apparatus'19965,471,352'Recording/playback apparatus in which head and tape are held in intermittent contact during rapid search'19955,463,505'Helical-scan information recording-playback apparatus'19955,415,960'Method of fabricating a phosphor screen for a cathode ray tube'19955,246,744'Method of forming thin film of amorphous silicon by plasma CVD'19935,138,504'Tape transport control apparatus for switching from high speed reel drive to low speed capstan drive without stopping the tape'1992Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1992–2019Patents assigned to HITACHI LTD (17)· patent assignee history
1995–2014Based in Yokohama, JP· patent location history
1997–1998Based in Sakai, JP· patent location history
2003–2010Based in Ibaraki, JP· patent location history
2007–2012Patents assigned to HOSIDEN CORP (3)· patent assignee history
2007–2012Based in Yao, JP· patent location history
2008–2019Based in Tokyo, JP· patent location history
2012Patents assigned to FUJITA KOUJI (3)· patent assignee history
2014–2015Patents assigned to HITACHI LG DATA STORAGE INC (3)· patent assignee history
2018–2020Patents assigned to HITACHI CONSTRUCTION MACH CO (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 17 | 1992–2019 |
| FUJITA KOUJIself | 3 | 2012 |
| HITACHI LG DATA STORAGE INC | 3 | 2014–2015 |
| HOSIDEN CORP | 3 | 2007–2012 |
| HITACHI CONSTRUCTION MACH CO | 2 | 2018–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 13 | 1995–2014 |
| Tokyo, JP | 6 | 2008–2019 |
| Yao, JP | 3 | 2007–2012 |
| Ibaraki, JP | 2 | 2003–2010 |
| Sakai, JP | 2 | 1997–1998 |