Ricoh Company, Ltd.

Kabushiki Kaisha Ricoh

Tomio Kubota

Hitoshi Hattori

Sadao Takahashi

Toshiyuki Furuta

Koichi Ejiri

Shoji Maruyama

Minoru Morikawa

Naoki Kozuka

Reiju Shioda

Hiroshi Tamura

Akio Kojima

Yoshikazu Kaneko

Takao Igawa

Katue Kojima

A data sheet is composed of an upper part and a lower part. The upper part is used as a user interface including a reduced image of contents of a document. The lower part is an interface for a reading device such as a copy machine, including a code obtained by encoding the document. By use of the data sheet, the user can easily distribute or carry an electronic document data with the user. In addition, the user can recognize contents of the electronic document data by looking at the reduced image printed on the data sheet.

Data sheet and information management system using data sheet

The present invention provides a photosensitive material for use in electrophotography which comprises a conductive support having a photoconductive layer coated with a protective layer, the material being superior in light-decay property, mechanical strength and image formability, wherein said protective layer is composed of either (1) a member selected from the group of resins consisting of polyvinyl butyral, polyvinyl acetate, acryl or derivative resins thereof, copolymers of styrene and maleic anhydride or alkyl esters thereof, copolymers of vinyl acetate or derivatives thereof and vinyl pyrrolidone, copolymers of butyl vinyl ether and maleic anhydride or alkyl monoesters thereof and shellac, or of (2) a resin and silane-coupling agent.

Silane coupling agent in protective layer of photoconductive element

Photoconductive, film forming nitropyrene-formaldehyde resins characterized by a repeating structural unit of the formula: ##SPC1## And process for preparation, the photoconductive films themselves, and such films on an electrically conductive support.

Process for manufacturing nitropyrene-formaldehyde resin

There are provided sensitizers for electrophotographic light-sensitive materials including organic photoconductors and electrophotographic light-sensitive materials containing same. The sensitizers are reaction products comprising benzopyrylium salt and benzopyran.

Sensitizer for use in electrophotographic light-sensitive material

Growing community of inventors

Kanagawa, Japan

Tomio Kubota