Inventor
Takayuki Kadoshima
Inventor
Utsunomiya, JP
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Dprimary
G01DMeasuring not specially adapted for a specific variable50%
G01BMeasuring length, thickness or similar linear dimensions42%
G11BInformation storage based on relative movement between record carrier and transducer8%
PatentTitleYear
7,375,820'Interference measuring apparatus for detecting a plurality of stable phase difference signals'20087,034,947'Compact interference measuring apparatus for detecting the magnitude and direction of positional deviation'20066,674,066'Encoder'20046,657,181'Optical element used in compact interference measuring apparatus detecting plurality of phase difference signals'20036,618,218'Displacement detecting apparatus and information recording apparatus'20036,570,660'Measuring instrument'20036,473,184'Interferometer which divides light beams into a plurality of beams with different optical paths'20025,956,140'Displacement detection apparatus and drive control apparatus using the same constructed to prevent collision between gratings'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2008Patents assigned to CANON KK (8)· patent assignee history
1999–2008Based in Utsunomiya, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANON KK | 8 | 1999–2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Utsunomiya, JP | 8 | 1999–2008 |