Sharp Kabushiki Kaisha Corporation

Yoshinori Oogita

Kazuhiro Nakao

Shigeki Komaki

Katsuhide Shino

Kazuhito Ozawa

Sigeaki Masuzawa

Yukihiro Inoue

Yoshitomo Kitanishi

Yoshitugu Imano

Yoshiro Itoh

A portable terminal device includes a printed wiring board having two main sides, a first interface for a first information data exchanging card disposed on one of the two main sides of the printed wiring board, and a second interface for a second information data exchanging card disposed on the other side of the two main sides of the printed wiring board. The first and second cards can be installed on both sides of the printed wiring board in parallel to each other sandwiching the printed wiring board.

Portable terminal device

An electronic equipment using a battery as an energizing power source includes a display unit, a signal generator for generating operation clocks while the electronic equipment is being actuated, a counter for measuring the number of the clocks, a calculator for calculating an operating time of the battery based upon the result of the counting operation by the counter, an estimating unit for estimating a consumption state of the battery based upon the result of the calculation by the calculator, and an informing unit for making the display unit display beforehand the expiration of the lifetime of the battery based upon the result of the estimation by the estimating unit.

Electronic equipment having display device for displaying lifetime of

A key-lock system and method for use in an IC card with a display portion and the like, which is so arranged to render input from a keyboard, to be in an inhibited state by detecting that a plurality of keys for the keyboard were depressed in a predetermined order, and also to render the inhibited state of input from the keyboard, to be in a released state by detecting that the plurality of keys of the keyboard were depressed in another predetermined order.

Key-lock system

An electronic apparatus such as an IC card is comprised of a power source including a secondary cell and solar cells which are connected in parallel to the secondary cell, an IC and a plurality of terminals inclusive of a power receiving terminal for contacting an external power source, and is characterized as also having voltage regulating diodes connected between the power receiving terminal and the secondary cell for regulating voltage applied to the secondary cell, and a current regulating diode connected between the power receiving terminal and the secondary cell and in parallel to the voltage regulaitng diodes for preventing the secondary cell from becoming directly recharged by an external power source connected to the apparatus through the power receiving terminal.

Solar charging system for an IC card having voltage current regulation

A card-shaped electronic apparatus has a film member pasted on the surface of a planar circuit piece. The film member has protrusions formed thereon and a filler is injected behind these protrusions between the film member and the circuit piece.

Card-shaped electronic apparatus with embossed surface and method of

An IC card has a preregistered password and a display section which displays numerals and a cursor. An operator enters a password by moving the cursor to the desired numeral and presses a key. Fewer keys are thus required to enter passwords and the surface area of the card can be utilized more efficiently than if use is made of the usual set of ten number keys.

IC card with fewer input keys

A card-type processing device such as an IC card is comprised of an electronic circuit element mounted on a circuit board and a housing which encloses them both inside. The part of the housing which actually encloses the circuit board and the circuit element is rigid but the remaining parts are made flexible such that an internal stress caused by external force is absorbed by the flexible parts and the circuit element is not damaged by the propagating stress.

Card-type processing device

An electronic apparatus comprising a plurality of assembly elements and a heat-sensitive adhesive synthetic resin film tape inserted between the plurality of assembly elements and the heat adhesive synthetic resin tape to integrally bond the elements together into a composite structure which is thin in size and sufficiently elastic to resist bending and twisting.

Thin electronic apparatus

A card-type thin electronic device in which the upper and lower panels are bonded to flanges projecting from a side-wall forming frame between the two panels, while a number of grooves are formed by a half-etching process on the surfaces of both panels bonded against the side-wall forming frame.

Card-type thin electronic device

A paper battery for connection to terminals protruding in same direction has positive and negative electrode plates joined together by a sealing agent therebetween formed with an insulating sheet. A hole penetrating one of the electrode plates and the insulating sheet to reach the other electrode plate and another hole penetrating the other of the electrode plates to reach the insulating sheet are provided such that not only is the battery connected properly to the terminals when it is inserted correctly but also a short circuit will be avoided even if the paper battery is inserted in upside-down direction.

Paper battery

A method for bonding a LSI chip having terminals on a wiring base having electrodes which comprises the steps of coating a heat sensitive adhesive on the surface of a wafer forming a plurality of LSI chips, sprinkling electrically conductive particles thereon, dopping the electrically conductive particles, scribing the wafer to be divided into each of the LSI chips, positioning each of the terminals of the LSI chip and each of the electrodes of the wiring base face to face, and bonding the LSI chip on the wiring base.

Method for bonding an LSI chip on a wiring base

A liquid crystal display panel to electrically and mechanically be connected to a substrate of an electronic apparatus comprises a liquid crystal display, a terminal connection member, and a metal plate such as a stainless. The terminal connection member is provided for electrically and mechanically coupling the liquid crystal display with the substrate of the electronic apparatus at a terminal connection portion. The metal plate is positioned at the terminal connection portion to shield a hard and fragile substrate of the liquid crystal display.

Growing community of inventors

Nara, Japan

Yoshinori Oogita