Inventor
Michio Yanagi
Inventor
Chichibu, JP
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus30%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them17%
G11BInformation storage based on relative movement between record carrier and transducer17%
Y10TTechnical subjects covered by former us classification10%
H01FMagnets7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form3%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds3%
C22CAlloys3%
H01BCables3%
PatentTitleYear
10,416,443Light amount adjusting device, imaging optical system, and image capturing apparatus201910,302,934Light amount adjusting device, imaging optical system, and image capturing apparatus20199,588,266'Optical filter and optical apparatus'20179,588,401'Fiber-reinforced laminate, shutter device and camera'20179,513,417'Optical filter and optical apparatus'20169,316,766'Optical filter, optical device, electronic device and anti-reflection composite'20168,755,134'ND filter, and iris device and optical apparatus having the same'20146,952,314'Method of manufacturing ND filter, and aperture device and camera having ND filter'20056,916,101'Metallic mirror, metallic rotary polygonal mirror, and process for their production'20055,777,828'Magnetic alloy and magnetic head having at least a part made of the magnetic alloy'19985,478,416'Magnetic alloy'19955,479,298'ND filter and aperture device using the same'19955,222,006'Magnetic head and core chip having a magnetic thin film'19935,164,870'Magnetic head employing a magnetic gap material composed of Cr.sub.2 O.sub.3'19924,593,333'Magnetic head'1986Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1986–1998Patents assigned to CANON KK (3)· patent assignee history
1986–2019Based in Chichibu, JP· patent location history
1992–2019Patents assigned to CANON DENSHI KK (12)· patent assignee history
1995–2017Based in Saitama, JP· patent location history
2014–2017Patents assigned to UCHIYAMA MASAYUKI (3)· patent assignee history
2014–2017Patents assigned to YANAGI MICHIO (3)· patent assignee history
2014Patents assigned to SAITO YASUNORI (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANON DENSHI KK | 12 | 1992–2019 |
| CANON KK | 3 | 1986–1998 |
| UCHIYAMA MASAYUKI | 3 | 2014–2017 |
| YANAGI MICHIOself | 3 | 2014–2017 |
| SAITO YASUNORI | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chichibu, JP | 10 | 1986–2019 |
| Saitama, JP | 5 | 1995–2017 |