Abstract: An electrical junction box includes a body case of the electrical junction box that has an opening part facing electrical components and has a case side locking part, and a cover that covers the opening part, is engaged to the body case of the electrical junction box, and has a cover side locking part. The cover is engaged to or disengaged from the body case of the electrical junction box with the case side locking part and the cover side locking part. The cover has a cover side abutting part to match a position of the cover side locking part. The body case of the electrical junction box has a case side abutting part to match a position of the case side locking part and a position of the cover side abutting part.

Abstract: An electrical junction box includes a body case of the electrical junction box that has an opening part facing electrical components and has a case side locking part, and a cover that covers the opening part, is engaged to the body case of the electrical junction box, and has a cover side locking part. The cover is engaged to or disengaged from the body case of the electrical junction box with the case side locking part and the cover side locking part. The cover has a cover side abutting part to match a position of the cover side locking part. The body case of the electrical junction box has a case side abutting part to match a position of the case side locking part and a position of the cover side abutting part.

Abstract: It is object of the present invention to provide an electric junction box that can effectively drain liquid away therefrom. The electric junction box in accordance with one embodiment of the present invention comprises a wiring board; a connector block having a body, and a terminal passing through a bottom wall of the body and being electrically connected to the wiring board at an end portion thereof, the body having a groove formed on an inner face of the bottom wall, and an outlet communicating with an end of the groove; and a case being disposed above the bottom wall, having a hole disposed thereon, and being configured to receive both the wiring board and the connector block therein, the hole being configured to pass an opposite end portion of the terminal therethrough. In such a construction, when liquid leaks into the case via the hole and arrives at the bottom wall, the groove is configured to take the liquid up and to guide the liquid to the outlet due to capillary phenomenon.

Abstract: An electric junction box which includes: a wiring board; a connector block having a body part and terminals, the terminal penetrating through a bottom wall of the body part and one end part of the terminal being electrically connected to the wiring board; a case which is arranged above the bottom wall of the body part, has holes each of which allows an opposite end part of the terminal to pass therethrough so as to expose the terminal, and receives the wiring board and the connector block therein; and a drain part provided on an inner surface of the case so that water, which enters into the case from the hole and is drained from the connector block, moves downward along the inner surface of the case and is drained outside the case.

Abstract: A light-receiving element has a photodiode formed in part of the top surface of a semiconductor substrate so as to function as a light-receiving region, and has a light-emitting element mount electrode formed on top of the semiconductor substrate where the light-receiving region is not formed. A high concentration impurity layer is formed below the top surface of the semiconductor substrate along the peripheral edges of the light-emitting element mount electrode. This helps prevent the voltage applied to the light-emitting element mount electrode from influencing the output of the light-receiving element. Alternatively, a photonic semiconductor device has a light-emitting element and a light-receiving element, and has the light-receiving region of the light-receiving element formed parallel to the direction in which the light-emitting element emits light.

Abstract: A printed wiring board which can certainly prevent damage of conductive pattern caused by the terminal. The printed wiring board has a board, a conductive pattern, a through-hole and a non-conductive area. A lead wire of resistance mounted on the printed wiring board is inserted into the through-hole 4. The lead wire projects from a surface of the board, and is bent close to the surface. The non-conductive area is formed into a fan-shaped shape enlarging toward a tip of the lead wire from a center of the through-hole. Because the bent lead wire is arranged on the non-conductive area, the non-conductive area can prevent damage of the conductive pattern which is caused by touching the lead wire to the conductive pattern.

Abstract: An electrical junction box, which is assembled by first inserting a circuit board assembly into a primary housing via an opening of the primary housing, and after that inserting a secondary housing into the primary housing, includes a connector block that has a projection that widens the opening that has been narrowed. A plurality of ribs are formed on front and rear walls of the thin primary housing from the side of the opening in an insertion direction of the circuit board assembly. A concave groove formed between a pair of the projections engages with the rib of the front wall. The ribs on the rear wall are close to a circuit board of the circuit board assembly. The connector block has protuberances that abut against the ribs.

Abstract: The present invention is to provide a printed wiring board which can certainly prevent damage of conductive pattern caused by the terminal. The printed wiring board has a board, a conductive pattern, a through-hole and a non-conductive area. A lead wire of resistance mounted on the printed wiring board is inserted into the through-hole 4. The lead wire projects from a surface of the board, and is bent close to the surface. The non-conductive area is formed into a fan-shaped shape enlarging toward a tip of the lead wire from a center of the through-hole. Since the bent lead wire is arranged on the non-conductive area, the non-conductive area can prevent damage of the conductive pattern which is caused by touching the lead wire to the conductive pattern.

Abstract: An electrical junction box, which is assembled by first inserting a circuit board assembly into a primary housing via an opening of the primary housing, and after that inserting a secondary housing into the primary housing, includes a connector block that has a projection that widens the opening that has been narrowed. A plurality of ribs are formed on front and rear walls of the thin primary housing from the side of the opening in an insertion direction of the circuit board assembly. A concave groove formed between a pair of the projections engages with the rib of the front wall. The ribs on the rear wall are close to a circuit board of the circuit board assembly. The connector block has protuberances that abut against the ribs.

Abstract: The electric junction box includes: a wiring board; a connector block having a body part and terminals, the terminal penetrating through a bottom wall of the body part and one end part of the terminal being electrically connected to the wiring board; a case which is arranged above the bottom wall of the body part, has holes each of which allows an opposite end part of the terminal to pass therethrough so as to expose the terminal, and receives the wiring board and the connector block therein; and a drain part provided on an inner surface of the case so that water, which enters into the case from the hole and is drained from the connector block, moves downward along the inner surface of the case and is drained outside the case.

Abstract: It is object of the present invention to provide an electric junction box that can effectively drain liquid away therefrom. The electric junction box in accordance with one embodiment of the present invention comprises a wiring board; a connector block having a body, and a terminal passing through a bottom wall of the body and being electrically connected to the wiring board at an end portion thereof, the body having a groove formed on an inner face of the bottom wall, and an outlet communicating with an end of the groove; and a case being disposed above the bottom wall, having a hole disposed thereon, and being configured to receive both the wiring board and the connector block therein, the hole being configured to pass an opposite end portion of the terminal therethrough. In such a construction, when liquid leaks into the case via the hole and arrives at the bottom wall, the groove is configured to take the liquid up and to guide the liquid to the outlet due to capillary phenomenon.

Abstract: A method for manufacturing a membrane electrode assembly for a solid polymer type fuel cell which includes a process for forming an intermediate lamination layer body by laminating a catalyst electrode layer on an electrolyte membrane including an ion conductivity, and a process for hot pressing for forming the membrane electrode assembly to unify the intermediate lamination layer body and porous gas diffusion layers positioned on both sides on the intermediate lamination layer body in a thickness direction. The intermediate lamination layer body is heat treated by maintaining heating at a temperature range equal to or higher than a glass-transition temperature of the electrolyte polymer included in the catalyst electrode layer and equal to or lower than thermal decomposition temperature before the hot pressing process under a condition that the gas diffusion layers are not laminating on the intermediate lamination layer body.

Abstract: A light-receiving element has a photodiode formed in part of the top surface of a semiconductor substrate so as to function as a light-receiving region, and has a light-emitting element mount electrode formed on top of the semiconductor substrate where the light-receiving region is not formed. A high concentration impurity layer is formed below the top surface of the semiconductor substrate along the peripheral edges of the light-emitting element mount electrode. This helps prevent the voltage applied to the light-emitting element mount electrode from influencing the output of the light-receiving element.

Abstract: In a particle measuring apparatus using laser Doppler velocimeter, it is intended to facilitate calibration of the apparatus for measuring the shape of particle. Laser beams passing through a first intersecting region M1 which is a measuring region are intersected again by using condenser lenses 21 and 22, and a second intersecting region M2 is formed. The intersecting region M2 is magnified by a magnifying lens 23. An optical bundle fiber 24 is brought closer from afar to the lens 23, and set at a position where AC component is not formed. As a result, the size of the incident portion of each optical fiber 24i and the fringe interval d.sub.f may be matched equivalently, so that the absolute value of the shape of particle may be obtained.