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Inventor

Katsuya Fujisawa

Inventor
Tsukuba, JP

Overview

17→
Patents
1989–2020
Patent span
Physics
Primary field (CPC G)

Patents· 17 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Bprimary
G02BOptical elements, systems or apparatus27%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein15%
B29LIndexing scheme associated with subclass b29c, relating to particular articles8%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%
C08JWorking-up6%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them6%
B29CShaping or joining of plastics4%
B29DProducing particular articles from plastics or from substances in a plastic state4%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts4%
H04NPictorial communication, e.g. television4%
PatentTitleYear
10,851,180Polymer material, film, circular polarizing plate, image display apparatus, and manufacturing method for film20208,580,069'Plastic bonding method'20138,477,267'Light-condensing film, liquid-crystal panel and backlight as well as manufacturing process for light-condensing film'20137,952,802'Optical device provided with polarizing plate'20117,852,435'Light-condensing film, liquid-crystal panel and backlight as well as manufacturing process for light-condensing film'20106,992,831'Lens sheet and method for producing it'20066,798,576'Lens sheet and method for producing it'20046,610,372'Method of curing a mixture comprising an ionizing radiation curing resin, and surface modifying technique'20036,425,675'Planar light source and display device using the same'20026,086,212'Panel light source device and display comprising it'20006,067,137'Image display apparatus with hydrophobic diffraction grating for an enlarged viewing angle'20006,002,464'Light diffusing sheet having a layer incorporated with light diffusing material and a layer with a corrugated surface'19995,754,342'Video device utilizing a two-dimensional diffraction grating'19985,513,025'Image display apparatus'19965,467,224'Optical low pass filter and imaging device using the same'19954,998,800'Optical low pass filter'19914,842,969'Transmittance modulation photomask, process for producing the same, and process for producing diffraction gratings using the same'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2013Patents assigned to KURARAY CO (16)· patent assignee history
1989–2000Based in Kurashiki, JP· patent location history
1991Based in Okayama, JP· patent location history
2000–2011Based in Tsukuba, JP· patent location history
2010–2013Patents assigned to DAINIPPON INK & CHEMICALS (2)· patent assignee history
2010–2013Patents assigned to DAINIPPON PRINTING CO LTD (2)· patent assignee history
2010–2013Patents assigned to JSR CORP (2)· patent assignee history
2010–2013Based in Ibaraki, JP· patent location history
2013Patents assigned to FUJISAWA KATSUYA (2)· patent assignee history
2020Based in Settsu, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KURARAY CO161989–2013
DAINIPPON INK & CHEMICALS22010–2013
DAINIPPON PRINTING CO LTD22010–2013
FUJISAWA KATSUYAself22013
JSR CORP22010–2013
Locations
LocationPatentsSpan
Tsukuba, JP62000–2011
Kurashiki, JP61989–2000
Ibaraki, JP32010–2013
Settsu, JP12020
Okayama, JP11991