Inventor
Kiyokazu Okamoto
Inventor
Tsukuba, JP
Overview
Patents· 23 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Bprimary
G01BMeasuring length, thickness or similar linear dimensions30%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters15%
G01DMeasuring not specially adapted for a specific variable9%
H02KDynamo-electric machines9%
B82YSpecific uses or applications of nanostructures3%
G01CMeasuring distances, levels or bearings3%
G01QScanning-probe techniques or apparatus3%
G01RMeasuring electric variables3%
G05BControl or regulating systems in general3%
G06FElectric digital data processing3%
PatentTitleYear
6,937,070'Amplitude-detecting method and circuit'20056,848,315'Vibration detecting system of resilient body and vibrating contact detection probe'20056,671,423'Method of suppressing geometric distortion of an image space'20036,633,387'Method and apparatus for measuring opposite surfaces'20036,604,295'Microscopic geometry measuring device'20036,490,300'Wavelength-stabilized light source apparatus'20026,484,571'Surface configuration measuring method'20026,480,008'Capacitive distance sensor for surface configuration determining apparatus'20026,457,366'Movement control mechanism of contact-type vibrating probe'20026,307,084'Contact location detecting mechanism of touch signal probe'20016,301,550'Phase delay correction system'20016,034,773'Length measuring machine and method using laser beams'20005,734,688'Interpolation pulse generating device with two-step interpolation'19985,206,574'Vector control apparatus for induction motor'19934,871,934'Induction motor'19894,868,438'Three-phase induction motor'19894,855,661'Motion control apparatus for induction motor'19894,818,927'Acceleration/deceleration control apparatus using slip speed'19894,814,683'Induction motor control apparatus'19894,755,702'Three-phase induction motor'19884,413,212'Motor control apparatus'19834,061,907'Interpolator for a numerically controlled machine with step size selected in response to feed rate'19774,027,292'Synchronous data processing system having arithmetic and control units controlled by single-phase clock pulses'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1983Patents assigned to NIPPON ELECTRIC CO (3)· patent assignee history
1977–1993Based in Tokyo, JP· patent location history
1988–1993Patents assigned to NEC CORP (7)· patent assignee history
1989Patents assigned to NIPPON ELECTRIC IND (1)· patent assignee history
1989Based in Toyko, JP· patent location history
1998–2005Patents assigned to MITUTOYO CORP (13)· patent assignee history
1998Based in Kawasaki, JP· patent location history
2000–2005Based in Tsukuba, JP· patent location history
2002Based in Ibaraki, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITUTOYO CORP | 13 | 1998–2005 |
| NEC CORP | 7 | 1988–1993 |
| NIPPON ELECTRIC CO | 3 | 1977–1983 |
| NIPPON ELECTRIC IND | 1 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tsukuba, JP | 11 | 2000–2005 |
| Tokyo, JP | 9 | 1977–1993 |
| Ibaraki, JP | 1 | 2002 |
| Kawasaki, JP | 1 | 1998 |
| Toyko, JP | 1 | 1989 |