Inventor
Seiji Shimokawa
Inventor
Kawasaki, JP
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus44%
F21VFunctional features or details of lighting devices or systems thereof13%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted13%
G01BMeasuring length, thickness or similar linear dimensions6%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light6%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
H04NPictorial communication, e.g. television6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
8,772,688'Autofocus device including line image forming unit and rotation unit that rotates line image'20148,033,673'Illumination device and vision measuring instrument'20117,528,968'Optical measuring machine'20097,016,053'Image processing type of measuring device, lighting system for the same, lighting system control method, lighting system control program, and a recording medium with the lighting system control program recorded therein'20066,857,762'Ring illuminator'20056,621,065'Imaging probe'20036,461,030'Illuminator for optical measuring instrument'20026,407,800'Focus detection unit and optical measuring instrument having the same'20026,075,558'Auto-focus device'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2014Patents assigned to MITUTOYO CORP (9)· patent assignee history
2000–2014Based in Kawasaki, JP· patent location history
2011Based in Kanagawa, JP· patent location history
2014Patents assigned to KITAGAWA KAZUKI (1)· patent assignee history
2014Patents assigned to OKABE KENJI (1)· patent assignee history
2014Patents assigned to SHIMOKAWA SEIJI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITUTOYO CORP | 9 | 2000–2014 |
| KITAGAWA KAZUKI | 1 | 2014 |
| OKABE KENJI | 1 | 2014 |
| SHIMOKAWA SEIJIself | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 8 | 2000–2014 |
| Kanagawa, JP | 1 | 2011 |