Inventor
Tsukasa Ohyama
Inventor
Fukuoka, JP
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Mprimary
B41MPrinting, duplicating, marking, or copying processes30%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments30%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests19%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices5%
G03GElectrography5%
C07DHeterocyclic compounds3%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds3%
G03CPhotosensitive materials for photographic purposes3%
G11BInformation storage based on relative movement between record carrier and transducer3%
PatentTitleYear
5,567,470'Heat-sensitive transfer sheet containing blue dyestuff'19965,387,686'Dye for heat-sensitive transfer record and ink composition for heat-sensitive transfer record'19955,358,536'Dyestuff for heat-sensitive transfer record and transfer sheet containing same'19945,359,075'Quinophthalone compound'19945,342,974'Halogenated anthraquinone and their use as near infrared rays absorbing optical filters'19945,302,573'Transfer sheet for sublimation recording'19945,300,475'Sublimation thermal transfer printing sheet comprising novel magenta dyestuffs'19945,296,445'Dye for heat-sensitive transfer record, ink composition for heat-sensitive transfer record, and transfer sheet'19945,248,784'4-carbonyl-substituted coumarin compound'19935,183,474'Heat-sensitive sublimation transfer cyan dye and transfer sheet'19935,182,395'Isopropyl 1-amino-4-m-toluidinoanthraquinone-2-carboxylate'19935,168,093'Sublimation thermaltransfer printing sheet comprising novel magenta dyestuffs'19925,045,434'Visible radiation sensitive composition containing substituted 3-(benzothiazo-2-yl)-7-diethylaminocoumarin as sensitizers'19915,002,925'Isopropyl 1-amino-4-m-toluidinoanthraquinone-2-carboxylate, cyan composition for sublimation transfer record and cyan composition for color toner containing it'19914,954,410'Color toner composition'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1996Patents assigned to MITSUI TOATSU CHEMICALS (14)· patent assignee history
1990–1994Based in Ohmuta, JP· patent location history
1991Patents assigned to KANSAI PAINT CO LTD (1)· patent assignee history
1991–1996Based in Fukuoka, JP· patent location history
1993Based in Omuta, JP· patent location history
1994–1995Patents assigned to DAINIPPON PRINTING CO LTD (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MITSUI TOATSU CHEMICALS | 14 | 1990–1996 |
| DAINIPPON PRINTING CO LTD | 2 | 1994–1995 |
| KANSAI PAINT CO LTD | 1 | 1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Fukuoka, JP | 8 | 1991–1996 |
| Ohmuta, JP | 6 | 1990–1994 |
| Omuta, JP | 1 | 1993 |