Inventor
Masanori Umeya
Inventor
Tokyo, JP
Overview
Patents· 30 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus32%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them25%
B42DBooks12%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein9%
C09KMaterials for miscellaneous applications, not provided for elsewhere7%
G03HHolographic processes or apparatus7%
Y10TTechnical subjects covered by former us classification4%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form2%
G09FDisplaying2%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2%
PatentTitleYear
10,955,736Screen, display apparatus, screen use method, particle, particle layer, particle sheet, and light control sheet202110,634,986Screen, display apparatus, screen use method, particle, particle layer, particle sheet, and light control sheet20208,982,288'Fabrication process for cholesteric liquid crystal media having a volume hologram'20158,808,945'Fabrication process for cholesteric liquid crystal media having a volume hologram'20148,134,660'Optical diffusion device, projection screen, design member and security medium'20127,909,364'Indicator for indicating authenticity'20117,787,080'Reflecting element and projection system comprising the same'20107,719,762'Transmitting-reflecting projection screen, and projection system comprising the same'20107,706,037'Fabrication process for cholesteric liquid crystal media having a volume hologram'20107,595,099'Method of producing anisotropic optical element'20097,583,341'Anisotropic optical element'20097,545,545'Fabrication process for cholesteric liquid crystal media having a volume hologram'20097,365,906'Projection screen and projection system containing same'20087,274,427'Method of producing optical element by patterning liquid crystal films'20077,206,130'Projection screen and projection system comprising the same'20077,193,777'Projection screen and projection system comprising the same'20077,161,737'Projection screen and projection system comprising the same'20077,158,297'Projection screen and projection system comprising the same'20077,158,299'Projection screen and projection system comprising the same'20077,142,360'Projection screen and projection system containing same'20067,123,410'Projection screen and projection system comprising the same'20067,123,409'Projection screen and projection system comprising the same'20067,118,795'Process of producing optical element and optical element'20067,075,598'Circularly polarizing element having multiple low reflectance cholesteric liquid crystal layers and process for producing the same'20067,057,813'Projection screen and projection system comprising the same'20067,002,662'Method of producing optical element by patterning liquid crystal films'20066,977,099'Liquid crystalline transfer sheet and process of producing the same'20056,906,764'Reflective cholesteric filter'20056,816,215'Circular polarization controlling optical element and method of producing the same'20046,693,686'Polarizing element and optical display apparatus including the same'2004Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2004–2021Patents assigned to DAINIPPON PRINTING CO LTD (30)· patent assignee history
2004–2006Based in Shinjuku-ku, JP· patent location history
2006–2021Based in Tokyo, JP· patent location history
2012–2015Patents assigned to UMEYA MASANORI (3)· patent assignee history
2012–2015Patents assigned to WATANABE MASACHIKA (3)· patent assignee history
2012Based in Matsudo, JP· patent location history
2014–2015Patents assigned to ETO KOJI (2)· patent assignee history
2014–2015Patents assigned to YAMAUCHI TSUYOSHI (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DAINIPPON PRINTING CO LTD | 30 | 2004–2021 |
| UMEYA MASANORIself | 3 | 2012–2015 |
| WATANABE MASACHIKA | 3 | 2012–2015 |
| ETO KOJI | 2 | 2014–2015 |
| YAMAUCHI TSUYOSHI | 2 | 2014–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 24 | 2006–2021 |
| Shinjuku-ku, JP | 5 | 2004–2006 |
| Matsudo, JP | 1 | 2012 |