Hirokazu Tsukahara

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Thermal delayed-tack adhesive compositions and thermal delayed-tack...
- Patent number 5,252,393
- Issue date Oct 12, 1993
- Mitsubishi Paper Mills Ltd.
- Nobuhiro Kagota
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Donor sheet for pressure-sensitive image recording
- Patent number 5,112,797
- Issue date May 12, 1992
- Mitsubishi Paper Mills Limited
- Shunsuke Takahashi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal delayed tack sheets
- Patent number 4,833,023
- Issue date May 23, 1989
- Mitsubishi Paper Mills, Ltd.
- Hirokazu Tsukahara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Color developer
- Patent number 4,775,417
- Issue date Oct 4, 1988
- Mitsubishi Paper Mills, Ltd.
- Hirokazu Tsukahara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal delayed tack sheets
- Patent number 4,745,026
- Issue date May 17, 1988
- Mitsubishi Paper Mills, Ltd.
- Hirokazu Tsukahara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Colorless carbazole dyes for recording materials
- Patent number 4,737,587
- Issue date Apr 12, 1988
- Mitsubishi Paper Mills, Ltd.
- Fumio Okumura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing microcapsules
- Patent number 4,711,749
- Issue date Dec 8, 1987
- Mitsubishi Paper Mills, Ltd.
- Takao Kosaka
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image-receiving color-forming sheet for transfer electrophotography
- Patent number 4,550,328
- Issue date Oct 29, 1985
- Mitsubishi Paper Mills, Limited
- Takao Kosaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Self-contained color forming pressure sensitive record paper of the...
- Patent number 4,327,148
- Issue date Apr 27, 1982
- Mitsubishi Paper Mills, Ltd.
- Kohji Toyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Color-developing sheet for no-carbon copying process
- Patent number 4,296,948
- Issue date Oct 27, 1981
- Mitsubishi Paper Mills, Ltd.
- Tsutomu Satoh
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Desensitizer for no-carbon copy paper
- Patent number 4,291,102
- Issue date Sep 22, 1981
- Mitsubishi Paper Mills, Ltd.
- Hirokazu Tsukahara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Desensitizer for no-carbon copy paper
- Patent number 4,268,634
- Issue date May 19, 1981
- Mitsubishi Paper Mills, Ltd.
- Hirokazu Tsukahara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Hirokazu Tsukahara

Person

Patents Grantslast 30 patents

Thermal delayed-tack adhesive compositions and thermal delayed-tack...

Donor sheet for pressure-sensitive image recording

Thermal delayed tack sheets

Color developer

Thermal delayed tack sheets

Colorless carbazole dyes for recording materials

Process for producing microcapsules

Image-receiving color-forming sheet for transfer electrophotography

Self-contained color forming pressure sensitive record paper of the...

Color-developing sheet for no-carbon copying process

Desensitizer for no-carbon copy paper

Desensitizer for no-carbon copy paper