Tsukasa Ohyama

Person

Fukuoka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Heat-sensitive transfer sheet containing blue dyestuff
- Patent number 5,567,470
- Issue date Oct 22, 1996
- Mitsui Toatsu Chemicals, Incorporated
- Hitoshi Koshida
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Dye for heat-sensitive transfer record and ink composition for heat...
- Patent number 5,387,686
- Issue date Feb 7, 1995
- Mitsui Toatsu Chemicals, Incorporated
- Tsukasa Ohyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Dyestuff for heat-sensitive transfer record and transfer sheet cont...
- Patent number 5,358,536
- Issue date Oct 25, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Hitoshi Koshida
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Quinophthalone compound
- Patent number 5,359,075
- Issue date Oct 25, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Tsukasa Ohyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Halogenated anthraquinone and their use as near infrared rays absor...
- Patent number 5,342,974
- Issue date Aug 30, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Tsukasa Ohyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Transfer sheet for sublimation recording
- Patent number 5,302,573
- Issue date Apr 12, 1994
- Mitsui Toatsu Chemicals, Inc.
- Tsukasa Ohyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Sublimation thermal transfer printing sheet comprising novel magent...
- Patent number 5,300,475
- Issue date Apr 5, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Keisuke Takuma
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Dye for heat-sensitive transfer record, ink composition for heat-se...
- Patent number 5,296,445
- Issue date Mar 22, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Tsukasa Ohyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
4-carbonyl-substituted coumarin compound
- Patent number 5,248,784
- Issue date Sep 28, 1993
- Mitsui Toatsu Chemicals, Inc.
- Tsukasa Ohyama
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Heat-sensitive sublimation transfer cyan dye and transfer sheet
- Patent number 5,183,474
- Issue date Feb 2, 1993
- Mitsui Toatsu Chemicals Inc.
- Tsukasa Ohyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Isopropyl 1-amino-4-m-toluidinoanthraquinone-2-carboxylate
- Patent number 5,182,395
- Issue date Jan 26, 1993
- Mitsui Toatsu Chemicals, Inc.
- Keisuke Takuma
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Sublimation thermaltransfer printing sheet comprising novel magenta...
- Patent number 5,168,093
- Issue date Dec 1, 1992
- Mitsui Toatsu Chemicals Inc.
- Keisuke Takuma
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Visible radiation sensitive composition containing substituted 3-(b...
- Patent number 5,045,434
- Issue date Sep 3, 1991
- Kansai Paint Co., Ltd.
- Ichiro Yoshihara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Isopropyl 1-amino-4-m-toluidinoanthraquinone-2-carboxylate, cyan co...
- Patent number 5,002,925
- Issue date Mar 26, 1991
- Mitsui Toatsu Chemicals, Incorporated
- Keisuke Takuma
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Color toner composition
- Patent number 4,954,410
- Issue date Sep 4, 1990
- Mitsui Toatsu Chemicals, Incorporated
- Keisuke Takuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Tsukasa Ohyama

Person

Patents Grantslast 30 patents

Heat-sensitive transfer sheet containing blue dyestuff

Dye for heat-sensitive transfer record and ink composition for heat...

Dyestuff for heat-sensitive transfer record and transfer sheet cont...

Quinophthalone compound

Halogenated anthraquinone and their use as near infrared rays absor...

Transfer sheet for sublimation recording

Sublimation thermal transfer printing sheet comprising novel magent...

Dye for heat-sensitive transfer record, ink composition for heat-se...

4-carbonyl-substituted coumarin compound

Heat-sensitive sublimation transfer cyan dye and transfer sheet

Isopropyl 1-amino-4-m-toluidinoanthraquinone-2-carboxylate

Sublimation thermaltransfer printing sheet comprising novel magenta...

Visible radiation sensitive composition containing substituted 3-(b...

Isopropyl 1-amino-4-m-toluidinoanthraquinone-2-carboxylate, cyan co...

Color toner composition