Hitachi, Ltd.

Hitachi Computer Engineering Co., Ltd.

Akio Kojima

Yoshihisa Tsuji

Hideaki Sasaki

Yoshihisa Watanabe

Mamoru Kobayashi

Kazuo Kato

Souhei Ikeda

Osamu Harada

Sigeru Ninomiya

Tetsuhiro Yokoyama

Keiichi Isozaki

A method of supplying parts in a system for assembling a printed circuit board by mounting the parts on a substrate at corresponding predetermined positions thereof. One or more kinds of substrates and at least one group of parts, to be mounted on the corresponding substrates, are introduced into the system lot by lot. The introduced parts on one or more previously prepared parts containers are placed so as to correspond to the substrates on which the individual parts are to be mounted, thereby providing one or more sets of the parts, each set corresponding to a respective one of the substrates. The sets of parts are supplied to a parts mounting station of the system.

Printed circuit board assembling system

A production management system for managing production by using a plurality of working devices arranged in the production processes includes a host management device for managing control data necessary for producing a product, working device managing terminals provided in correspondence with working devices used for the production for processing information necessary in managing the working devices, and a terminal information management device for integrally managing information items which are processed at individual working device management terminals. Each working device management terminal is connected with the terminal information management device through a network to enable transfer of information between each working device terminal and the terminal information management device and between individual working device terminals. Further, working device terminals which require transfer of control data held by the terminal information management device and the host management device are connected to the host management device to enable exchanges of information between the connected devices.

Computer-integrated manufacturing system and method

An inspection device for inspecting projections of a part which can be applied to a variety of parts having projections on the surface thereof such as leads of electronic parts having varying shapes. The inspection device includes a member having a two-dimensional surface to which projections of the part are two-dimensionally pressed at a predetermined pressure, and an arrangement for detecting a pressure distribution pattern on the surface of the member as well as a converter for converting the detected pattern to two-dimensional pattern information. Further, a memory is provided for storing a reference pattern of the projections of the part so that inspection may be effected by comparing the reference pattern with the converted two-dimensional pattern information.

Inspection device for inspecting projections on the surface of parts

Bar codes and auxiliary characters representative of the contents of the bar codes are printed on an article which is limited with respect to the available space in distinguishably recognizable and superposed relations. By selecting appropriately the lightness of the auxiliary characters, reflected light resulting from scanning of the bar code is converted into an electrical signal which is subsequently converted into a binary signal with the signal components due to the auxiliary characters being neglected, to thereby extract only the signal originating in the bar code. A bar code reader is provided which comprises an A/D converter for compensating the output of bar code detection due to the character pattern superposed on the bar code.

Bar code reader

Growing community of inventors

Hadano, Japan

Akio Kojima