Inventor
Kenichi Watabe
Inventor
Tokyo, JP
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus22%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them22%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein17%
G11BInformation storage based on relative movement between record carrier and transducer11%
B29DProducing particular articles from plastics or from substances in a plastic state6%
C01BNon-metallic elements6%
F02DControlling combustion engines6%
F16KValves6%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices6%
PatentTitleYear
10,508,743Flow rate control device and vehicle20199,760,013'Exposure apparatus, mask, and optical film'20179,594,276'Optical diffraction element, optical pickup, and optical diffraction element manufacturing method'20179,158,123'Light diffraction element and optical low pass filter'20158,551,439'Method of refining carbon parts for production of polycrystalline silicon'20138,218,406'Lens driving apparatus'20126,726,379'Camera focal plane shutter'20045,508,773'Focal plane shutter for use in a photographic camera'19964,994,834'Focal plane shutter for cameras'19914,975,722'Focal plane shutter'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1996Patents assigned to COPAL CO LTD (3)· patent assignee history
1990–2019Based in Tokyo, JP· patent location history
1991Based in Itabashi-ku, JP· patent location history
2004–2019Patents assigned to NIDEC COPAL CORP (3)· patent assignee history
2012–2013Patents assigned to WATABE KENICHI (2)· patent assignee history
2012Patents assigned to Fujimura yoji (1)· patent assignee history
2012Based in Shiki, JP· patent location history
2013Based in Yokkaichi, JP· patent location history
2015–2017Patents assigned to ARISAWA SEISAKUSHO KK (3)· patent assignee history
2015–2017Based in Niigata, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ARISAWA SEISAKUSHO KK | 3 | 2015–2017 |
| COPAL CO LTD | 3 | 1990–1996 |
| NIDEC COPAL CORP | 3 | 2004–2019 |
| WATABE KENICHIself | 2 | 2012–2013 |
| Fujimura yoji | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 4 | 1990–2019 |
| Niigata, JP | 3 | 2015–2017 |
| Yokkaichi, JP | 1 | 2013 |
| Shiki, JP | 1 | 2012 |
| Itabashi-ku, JP | 1 | 1991 |