Inventor
Kazutoshi Ohta
Inventor
Nagoya, JP
Overview
Patents· 19 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B66Bprimary
B66BElevators33%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices22%
D07BRopes or cables in general7%
B05DProcesses for applying fluent materials to surfaces, in general4%
B44CProducing decorative effects4%
C23CCoating metallic material4%
F16FSprings4%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
G06TImage data processing or generation, in general4%
H01JElectric discharge tubes or discharge lamps4%
PatentTitleYear
8,633,543'Electro-static discharge protection circuit and semiconductor device'20147,424,145'Device and method for inspecting photomasks and products fabricated using the same'20086,745,484'Reticle, and pattern positional accuracy measurement device and method'20046,708,323'Method and apparatus for verifying mask pattern data according to given rules'20046,461,777'Layout designing method of a display device'20026,361,908'Layout designing method of a display device'20024,734,745'Method for projecting and exposing a photomask pattern onto re-exposing substrates and its apparatus'19884,666,743'Method for manufacturing a decorative sheet'19874,653,611'Elevator control apparatus'19874,570,753'Elevator hoisting device'19864,515,248'Buffer device for elevator'19854,465,161'Elevator winding device'19844,460,066'Crime prevention apparatus for elevators'19844,434,873'Electric elevator car driving device'19844,433,023'Panel for elevator'19844,226,078'Wire rope'19804,219,995'Wire rope'19804,172,509'Traction machine of elevator'19794,079,816'Damper device for elevator rope'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1987Patents assigned to MITSUBISHI ELECTRIC CORP (12)· patent assignee history
1978–1984Based in Inazawa, JP· patent location history
1984–1987Based in Nagoya, JP· patent location history
1988–2008Patents assigned to FUJITSU LTD (6)· patent assignee history
1988–2014Based in Yokohama, JP· patent location history
2002Based in Kanagawa, JP· patent location history
2004–2008Based in Kawasaki, JP· patent location history
2014Patents assigned to FUJITSU SEMICONDUCTOR LTD (1)· patent assignee history
2014Patents assigned to HASHIMOTO KENJI (1)· patent assignee history
2014Patents assigned to OHTA KAZUTOSHI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUBISHI ELECTRIC CORP | 12 | 1978–1987 |
| FUJITSU LTD | 6 | 1988–2008 |
| FUJITSU SEMICONDUCTOR LTD | 1 | 2014 |
| HASHIMOTO KENJI | 1 | 2014 |
| OHTA KAZUTOSHIself | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Nagoya, JP | 6 | 1984–1987 |
| Inazawa, JP | 5 | 1978–1984 |
| Kawasaki, JP | 3 | 2004–2008 |
| Yokohama, JP | 2 | 1988–2014 |
| Kanagawa, JP | 2 | 2002 |