Inventor

Isao Ikuhara

Inventor

Minami-ashigara, JP

Overview

7→

Patents

1989–2010

Patent span

Physics

Primary field (CPC G)

Patents· 7 as inventor

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

G02Bprimary

G02BOptical elements, systems or apparatus28%

Y10TTechnical subjects covered by former us classification17%

C09DCoating compositions, e.g. paints, varnishes or lacquers11%

H01JElectric discharge tubes or discharge lamps11%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients6%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments6%

G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein6%

G03CPhotosensitive materials for photographic purposes6%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%

PatentTitleYear

7,813,038'Light-scattering film, polarizing plate and image display'2010 7,357,981'Optical filter'2008 6,849,327'Optical filter'2005 6,515,811'Optical filter having two absorption maximums'2003 6,157,504'Optical filter comprising transparent support and filter layer having two absorption maximums'2000 5,631,124'Method of producing a photographic polyester laminate support'1997 4,840,981'Polyethylene terephthalate resin composition'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to MITSUBISHI CHEM IND (1)· patent assignee history

1989Based in Yokohama, JP· patent location history

1997–2005Patents assigned to FUJI PHOTO FILM CO LTD (4)· patent assignee history

1997–2010Based in Minami-ashigara, JP· patent location history

2005–2008Based in Kanagawa, JP· patent location history

2008–2010Patents assigned to FUJIFILM CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJI PHOTO FILM CO LTD	4	1997–2005
FUJIFILM CORP	2	2008–2010
MITSUBISHI CHEM IND	1	1989

Locations

Location	Patents	Span
Minami-ashigara, JP	4	1997–2010
Kanagawa, JP	2	2005–2008
Yokohama, JP	1	1989