Inventor

Koichi Kamijima

Inventor

Hitachi, JP

Overview

17→

Patents

1991–2001

Patent span

Chemistry

Primary field (CPC C)

Patents· 17 as inventor

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

Y10Sprimary

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests23%

C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments17%

G11BInformation storage based on relative movement between record carrier and transducer17%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium10%

C09DCoating compositions, e.g. paints, varnishes or lacquers8%

G03CPhotosensitive materials for photographic purposes6%

G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices6%

H01JElectric discharge tubes or discharge lamps6%

C07DHeterocyclic compounds4%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds2%

PatentTitleYear

6,248,501'Photosensitive resin composition, photosensitive film and process for preparing fluorescent pattern using the same'2001 6,077,647'Photosensitive resin composition, photosensitive film and process for preparing fluorescent pattern using the same, and phosphor subjected to surface treatment and process for preparing the same'2000 5,858,616'Photosensitive resin composition, photosensitive film and process for preparing fluorescent pattern using the same, and phosphor subjected to surface treatment and process for preparing the same'1999 5,773,508'Coating varnish composition and antifouling coating composition'1998 5,646,198'Coating composition and antifouling paint'1997 5,484,685'Naphthalocyanine derivatives, production thereof, optical recording medium using the same, and production thereof'1996 5,439,511'Coating varnish composition and antifouling coating composition'1995 5,439,512'Resin composition and antifouling paint'1995 5,284,943'Tatraazaporphin, process for producing the same, as well as optical recording media using the same and production processes thereof'1994 5,242,917'Tetracarboxylic acid dianhydride having disiloxane linkage and process for producing the same'1993 5,217,856'Tetraazaporphin, process for producing the same, as well as optical recording media using the same and production processes thereof'1993 5,214,188'2,3-dicyanonaphthalene derivatives'1993 5,166,363'Process for producing 1,3-bis(dicarboxyphenyl)-disiloxane derivative or dianhydride thereof'1992 5,110,968'Naphthalocyanine derivatives, production thereof, optical recording medium using the same, and production thereof'1992 5,075,203'Naphthalocyanine derivatives, production thereof and optical recording medium using the same'1991 5,039,600'Naphthalocyanine derivatives, production thereof, optical recording medium using the same, and production thereof'1991 5,034,309'Naphthalocyanine derivatives and their use in optical recording medium'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2001Patents assigned to HITACHI CHEMICAL CO LTD (16)· patent assignee history

1991–1996Patents assigned to HITACHI LTD (3)· patent assignee history

1991–2001Based in Hitachi, JP· patent location history

1994Patents assigned to HITACHI CHEMICAL COMPANY CO (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI CHEMICAL CO LTD	16	1991–2001
HITACHI LTD	3	1991–1996
HITACHI CHEMICAL COMPANY CO	1	1994

Locations

Location	Patents	Span
Hitachi, JP	17	1991–2001