Nippon Telegraph and Telephone Public Corporation

Tomoegawa Paper Manufacturing Company Limited

Yuji Ooba

Toshio Shimizu

Masaru Ozawa

Kensaku Higashi

Hirotsugu Sato

Haruhiko Yano

Susumu Ichinose

Ken Sukegawa

Photo-fixing heat-sensitive recording media which comprise diazonium salts, couplers and/or basic materials, all of these components being insoluble or sparingly soluble in water. At least one of these components is present in the media in the form of a fine powder. The coupler may be a coupler which has a basic group therein and serves as both a coupler and a basic material.

Photo-fixing heat-sensitive recording media with photosensitive

Two-color recording paper comprising an ink film and a thermosensitive recording paper which are separably mated together. The ink film has a thin film base and an ink layer of a first hue coated on the film base. The ink layer contains a mixture of a colored material such as dye with a thermoplastic material which is solid at ordinary temperature and becomes fluid at high temperature. The thermosensitive recording paper has a substrate and a coloring layer coated on the substrate. The coloring layer contains a developer which colors in a second hue different from the hue of the ink layer. The ink film and the thermosensitive recording paper are overlapped separably with an ink surface of the ink film and a coloring surface of the thermosensitive recording paper facing each other. The recording paper is fed at a predetermined feedrate to a first thermal head disposed on the paper path, which head melts ink of the ink film to form a transferred image, and the ink film is peeled from the thermosensitive recording paper to perform recording in the first hue. Recording in the second hue is carried out by coloring the thermosensitive recording paper by a second thermal head after correction regarding the scanning line has been completed.

Two-color recording paper and method and recording apparatus utilizing

Recording paper capable of recording images in two colors

A recording head is provided with a slit-like issuing opening, and a plurality of divided electrodes which have a very small width are disposed in or adjacent to the slit-like issuing opening in very closely spaced apart relationship. An opposite electrode is disposed in front or back of a recording paper. The ink which is filled in the slit-like issuing opening and is adjacent to the divided electrode which is selected is emitted as a drop by the potential difference between the ink adjacent to said selected divided electrode and the opposite electrode.

Slit type ink recording apparatus

Growing community of inventors

Yokosuka, Japan

Yuji Ooba